Hi,

I've faced an issue. On PyTorch website there's an intro how to build and deploy pytorch-mobile from source (https://pytorch.org/mobile/android/#building-pytorch-android-from-source) but the part with Gradle won't work for me.

I've succesfully build AAR files, then edited HelloWorldApp/app/gradle.build as it said in intro, and added this AAR files to HelloWorldApp/app/libs/

And run it ./gradlew installDebug --stacktrace

> Task :app:javaPreCompileDebug FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:javaPreCompileDebug'.
> Could not resolve all files for configuration ':app:debugCompileClasspath'.
   > Failed to transform artifact 'pytorch_android-release.aar (:pytorch_android-release:)' to match attributes {artifactType=android-classes, org.gradle.usage=java-api}.
      > Execution failed for JetifyTransform: /root/android-demo-app/HelloWorldApp/app/libs/pytorch_android-release.aar.
         > Java heap space

* Try:
Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:javaPreCompileDebug'.
        at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:38)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:73)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:52)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:49)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:102)
        at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:49)
        at org.gradle.execution.plan.LocalTaskNodeExecutor.execute(LocalTaskNodeExecutor.java:43)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:355)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:343)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:336)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:322)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker$1.execute(DefaultPlanExecutor.java:134)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker$1.execute(DefaultPlanExecutor.java:129)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.execute(DefaultPlanExecutor.java:202)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.executeNextNode(DefaultPlanExecutor.java:193)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.run(DefaultPlanExecutor.java:129)
        at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
        at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
        at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
Caused by: org.gradle.api.internal.artifacts.ivyservice.DefaultLenientConfiguration$ArtifactResolveException: Could not resolve all files for configuration ':app:debugCompileClasspath'.
        at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.rethrowFailure(DefaultConfiguration.java:1195)
        at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.access$2100(DefaultConfiguration.java:138)
        at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration$ConfigurationFileCollection.getFiles(DefaultConfiguration.java:1170)
        at org.gradle.api.internal.file.AbstractFileCollection.iterator(AbstractFileCollection.java:72)
        at org.gradle.internal.snapshot.impl.DefaultFileSystemSnapshotter$FileCollectionLeafVisitorImpl.visitCollection(DefaultFileSystemSnapshotter.java:240)
        at org.gradle.api.internal.file.AbstractFileCollection.visitLeafCollections(AbstractFileCollection.java:233)
        at org.gradle.api.internal.file.CompositeFileCollection.visitLeafCollections(CompositeFileCollection.java:205)
        at org.gradle.internal.snapshot.impl.DefaultFileSystemSnapshotter.snapshot(DefaultFileSystemSnapshotter.java:126)
        at org.gradle.internal.fingerprint.impl.AbstractFileCollectionFingerprinter.fingerprint(AbstractFileCollectionFingerprinter.java:48)
        at org.gradle.api.internal.tasks.execution.DefaultTaskFingerprinter.fingerprintTaskFiles(DefaultTaskFingerprinter.java:46)
        at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionStateTaskExecuter.createExecutionState(ResolveBeforeExecutionStateTaskExecuter.java:93)
        at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionStateTaskExecuter.execute(ResolveBeforeExecutionStateTaskExecuter.java:73)
        at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:62)
        at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:108)
        at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionOutputsTaskExecuter.execute(ResolveBeforeExecutionOutputsTaskExecuter.java:67)
        at org.gradle.api.internal.tasks.execution.ResolveAfterPreviousExecutionStateTaskExecuter.execute(ResolveAfterPreviousExecutionStateTaskExecuter.java:46)
        at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:94)
        at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:46)
        at org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter.execute(ResolveTaskExecutionModeExecuter.java:95)
        at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:57)
        at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:56)
        at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36)
        ... 24 more
Caused by: org.gradle.api.internal.artifacts.transform.TransformException: Failed to transform artifact 'pytorch_android-release.aar (:pytorch_android-release:)' to match attributes {artifactType=android-classes, org.gradle.usage=java-api}.
        at org.gradle.api.internal.artifacts.transform.TransformingArtifactVisitor.lambda$visitArtifact$1(TransformingArtifactVisitor.java:61)
        at org.gradle.internal.Try$Failure.ifSuccessfulOrElse(Try.java:191)
        at org.gradle.api.internal.artifacts.transform.TransformingArtifactVisitor.visitArtifact(TransformingArtifactVisitor.java:50)
        at org.gradle.api.internal.artifacts.ivyservice.resolveengine.artifact.ArtifactBackedResolvedVariant$SingleArtifactSet.visit(ArtifactBackedResolvedVariant.java:112)
        at org.gradle.api.internal.artifacts.transform.TransformCompletion.visit(TransformCompletion.java:42)
        at org.gradle.api.internal.artifacts.ivyservice.resolveengine.artifact.CompositeResolvedArtifactSet$CompositeResult.visit(CompositeResolvedArtifactSet.java:83)
        at org.gradle.api.internal.artifacts.ivyservice.resolveengine.artifact.ParallelResolveArtifactSet$VisitingSet.visit(ParallelResolveArtifactSet.java:64)
        at org.gradle.api.internal.artifacts.ivyservice.DefaultLenientConfiguration.visitArtifacts(DefaultLenientConfiguration.java:256)
        at org.gradle.api.internal.artifacts.ivyservice.DefaultLenientConfiguration.access$500(DefaultLenientConfiguration.java:69)
        at org.gradle.api.internal.artifacts.ivyservice.DefaultLenientConfiguration$2.run(DefaultLenientConfiguration.java:231)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:402)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:394)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:92)
        at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
        at org.gradle.api.internal.artifacts.ivyservice.DefaultLenientConfiguration.visitArtifactsWithBuildOperation(DefaultLenientConfiguration.java:228)
        at org.gradle.api.internal.artifacts.ivyservice.DefaultLenientConfiguration.access$200(DefaultLenientConfiguration.java:69)
        at org.gradle.api.internal.artifacts.ivyservice.DefaultLenientConfiguration$1.visitArtifacts(DefaultLenientConfiguration.java:133)
        at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration$ConfigurationFileCollection.getFiles(DefaultConfiguration.java:1167)
        ... 43 more
Caused by: org.gradle.api.internal.artifacts.transform.TransformException: Execution failed for JetifyTransform: /root/android-demo-app/HelloWorldApp/app/libs/pytorch_android-release.aar.
        at org.gradle.api.internal.artifacts.transform.DefaultTransformerInvoker.lambda$invoke$1(DefaultTransformerInvoker.java:172)
        at org.gradle.internal.Try$Failure.mapFailure(Try.java:182)
        at org.gradle.api.internal.artifacts.transform.DefaultTransformerInvoker.lambda$invoke$2(DefaultTransformerInvoker.java:172)
        at org.gradle.api.internal.artifacts.transform.DefaultTransformerInvoker.fireTransformListeners(DefaultTransformerInvoker.java:219)
        at org.gradle.api.internal.artifacts.transform.DefaultTransformerInvoker.lambda$invoke$3(DefaultTransformerInvoker.java:117)
        at org.gradle.api.internal.artifacts.transform.ImmutableTransformationWorkspaceProvider.lambda$withWorkspace$0(ImmutableTransformationWorkspaceProvider.java:81)
        at org.gradle.cache.internal.LockOnDemandCrossProcessCacheAccess.withFileLock(LockOnDemandCrossProcessCacheAccess.java:90)
        at org.gradle.cache.internal.DefaultCacheAccess.withFileLock(DefaultCacheAccess.java:194)
        at org.gradle.cache.internal.DefaultPersistentDirectoryStore.withFileLock(DefaultPersistentDirectoryStore.java:170)
        at org.gradle.cache.internal.DefaultCacheFactory$ReferenceTrackingCache.withFileLock(DefaultCacheFactory.java:194)
        at org.gradle.api.internal.artifacts.transform.ImmutableTransformationWorkspaceProvider.withWorkspace(ImmutableTransformationWorkspaceProvider.java:76)
        at org.gradle.api.internal.artifacts.transform.AbstractCachingTransformationWorkspaceProvider.lambda$withWorkspace$0(AbstractCachingTransformationWorkspaceProvider.java:54)
        at com.google.common.cache.LocalCache$LocalManualCache$1.load(LocalCache.java:4717)
        at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3444)
        at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2193)
        at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2152)
        at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2042)
        at com.google.common.cache.LocalCache.get(LocalCache.java:3850)
        at com.google.common.cache.LocalCache$LocalManualCache.get(LocalCache.java:4712)
        at org.gradle.api.internal.artifacts.transform.AbstractCachingTransformationWorkspaceProvider.withWorkspace(AbstractCachingTransformationWorkspaceProvider.java:53)
        at org.gradle.api.internal.artifacts.transform.DefaultTransformerInvoker.invoke(DefaultTransformerInvoker.java:116)
        at org.gradle.api.internal.artifacts.transform.TransformationStep.lambda$transform$0(TransformationStep.java:104)
        at org.gradle.internal.Try$Success.flatMap(Try.java:102)
        at org.gradle.api.internal.artifacts.transform.TransformationStep.transform(TransformationStep.java:101)
        at org.gradle.api.internal.artifacts.transform.TransformationNode$InitialTransformationNode$1.transform(TransformationNode.java:159)
        at org.gradle.api.internal.artifacts.transform.TransformationNode$ArtifactTransformationStepBuildOperation.call(TransformationNode.java:229)
        at org.gradle.api.internal.artifacts.transform.TransformationNode$ArtifactTransformationStepBuildOperation.call(TransformationNode.java:212)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:102)
        at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36)
        at org.gradle.api.internal.artifacts.transform.TransformationNode$InitialTransformationNode.execute(TransformationNode.java:145)
        at org.gradle.api.internal.artifacts.transform.TransformationNodeExecutor.execute(TransformationNodeExecutor.java:37)
        ... 12 more
Caused by: java.lang.OutOfMemoryError: Java heap space

Error:

Caused by: com.facebook.jni.CppException: Legacy model format is not supported on mobile. (deserialize at /var/lib/jenkins/workspace/torch/csrc/jit/import.cpp:201)

Custom MobileNet v2 model, trained with PyTorch 1.4.0 and convert to the pt file.

build.gradle

    implementation 'org.pytorch:pytorch_android:1.4.0-SNAPSHOT'
    implementation 'org.pytorch:pytorch_android_torchvision:1.4.0-SNAPSHOT'

But the strange thing is, the other FaceNet model that I use before, it works on both 1.3.0 and 1.4.0.

Could someone help me please? thanks :)

I've traced pytorch model.when I'm running the model on android, I'm having this error on my android studio lgocat:
Can anyone help me with this?/ what does that mean????

Caused by: java.lang.RuntimeException: NNPACK SpatialConvolution_updateOutput failed
The above operation failed in interpreter, with the following stack trace:
at code/torch.py:364:26
98 = torch.tanh(_94)
99 = torch.sigmoid(95)
hx4 = torch.add(torch.mul(_97, hx1), torch.mul(_96, _98), alpha=1)
input15 = torch.mul(_99, torch.tanh(hx4))
query = torch.dropout(input15, 0.10000000000000001, False)
_100 = [torch.unsqueeze(_84, 1), torch.unsqueeze(_86, 1)]
input16 = torch.cat(_100, 1)
input17 = torch.unsqueeze(query, 1)
processed_query = torch.matmul(input17, torch.t(weight5))
processed_attention = torch._convolution(input16, _35, None, [1], [15], [1], False, [0], 1, False, False, True)
~~~~~~~~~~~~~~~~~~ <--- HERE
input18 = torch.transpose(processed_attention, 1, 2)
processed_attention_weights = torch.matmul(input18, torch.t(weight8))
_101 = torch.add(processed_query, processed_attention_weights, alpha=1)
_102 = torch.add(_101, processed_memory, alpha=1)
input19 = torch.tanh(_102)
energies = torch.matmul(input19, torch.t(weight7))
input20 = torch.squeeze(energies, -1)
attention_weights = torch.softmax(input20, 1, None)
_103 = torch.unsqueeze(attention_weights, 1)

The implementation of CameraX in my app is done with a newer version, and it looks like that some classes like ImageAnalysisConfig no longer exist, some constructors were privatized, etc. I'm gonna need to do some work on AbstractCameraXActivity.setupCameraX() to make it work.

It would be awesome if you guys updated the demo app to work with the latest CameraX library.

run PyTorchDemoApp app with my customized segment model, app crashed with following error, thanks for any suggestions

2019-10-30 16:54:00.469 13290-13342/org.pytorch.demo E/PyTorchDemo: Error during image analysis
java.lang.IllegalStateException: Expected IValue type 2, actual type 7
at org.pytorch.IValue.preconditionType(IValue.java:307)
at org.pytorch.IValue.toTensor(IValue.java:240)
at org.pytorch.demo.vision.ImageClassificationActivity.analyzeImage(ImageClassificationActivity.java:181)
at org.pytorch.demo.vision.ImageClassificationActivity.analyzeImage(ImageClassificationActivity.java:31)
at org.pytorch.demo.vision.AbstractCameraXActivity.lambda$setupCameraX$2$AbstractCameraXActivity(AbstractCameraXActivity.java:90)
at org.pytorch.demo.vision.-$$Lambda$AbstractCameraXActivity$t0OjLr-l_M0-_0_dUqVE4yqEYnE.analyze(lambda)
at androidx.camera.core.ImageAnalysisAbstractAnalyzer.analyzeImage(ImageAnalysisAbstractAnalyzer.java:57)
at androidx.camera.core.ImageAnalysisNonBlockingAnalyzer$1.run(ImageAnalysisNonBlockingAnalyzer.java:135)
at android.os.Handler.handleCallback(Handler.java:751)

Hi

I noticed that Pytorch Demo App runs almost x5 faster than Hello World App in an old Motorola G4.
For resnet18:

• Hello World App --> 2650 ms (Pytorch 1.5) / 2750 ms (Pytorch 1.4).
• Pytorch Demo App --> 700 ms (Pytorch 1.5) / 740 ms (Pytorch 1.4).

I saw that wolf image resolution is 400x400 when camera feed is 224x224. This is the reason for this slow down? There is another bottleneck? I was using Hello World App as reference but I don't know anymore if I should use Pytorch Demo App.

Finally, I was testing the performance between TFLite official app vs Pytorch Mobile and I discarded to use Pytorch Mobile due to its performance in the Hello World App. However, retesting with Pytorch Demo App, I get the same speed than TFLite with much less effort! I had a bad experience in deploying a model with TFLite. So, you could notice in the official mobile docs this performance drop in the Hello World App to avoid user confusion, especially if they want to test Pytorch performance. In my case, I discarded in Pytorch Mobile due to this misunderstanding.

EDIT: for those looking for performance, I tested mobilenet model from torchvision and I got 530 ms vs 460 ms of TFLite float model in TFLite example app.

Hello,

I'm trying to deploy a custom model in python to Android using pytorch mobile. I used torch.jit.trace to trace and then save the model. The saved model is working correctly when I load it in both C++ and python. However, when using pytorch_android, the following error occurred when loading the module (inside Module.load(modelFileAbsolutePath) function). The only thing different from the PyTorchDemoApp is the model file path. And I've confirmed that the model file path is correct and the file exists. I'm using pytorch 1.3.0 in both python and android.

Any suggestions on why the model loading would fail? Would this be related to this issue? Any suggestions on how to get more debugging information? Thank you!

2019-10-15 21:25:36.585 24959-25880/org.pytorch.demo E/PyTorchDemo: Error during image analysis
    com.facebook.jni.CppException: false CHECK FAILED at ../c10/core/Backend.h (tensorTypeIdToBackend at ../c10/core/Backend.h:106)
    (no backtrace available)
        at org.pytorch.Module$NativePeer.initHybrid(Native Method)
        at org.pytorch.Module$NativePeer.<init>(Module.java:70)
        at org.pytorch.Module.<init>(Module.java:25)
        at org.pytorch.Module.load(Module.java:21)
        at org.pytorch.demo.vision.ImageClassificationActivity.analyzeImage(ImageClassificationActivity.java:168)
        at org.pytorch.demo.vision.ImageClassificationActivity.analyzeImage(ImageClassificationActivity.java:31)
        at org.pytorch.demo.vision.AbstractCameraXActivity.lambda$setupCameraX$2$AbstractCameraXActivity(AbstractCameraXActivity.java:90)
        at org.pytorch.demo.vision.-$$Lambda$AbstractCameraXActivity$t0OjLr-l_M0-_0_dUqVE4yqEYnE.analyze(lambda)
        at androidx.camera.core.ImageAnalysisAbstractAnalyzer.analyzeImage(ImageAnalysisAbstractAnalyzer.java:57)
        at androidx.camera.core.ImageAnalysisNonBlockingAnalyzer$1.run(ImageAnalysisNonBlockingAnalyzer.java:135)
        at android.os.Handler.handleCallback(Handler.java:751)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:154)
        at android.os.HandlerThread.run(HandlerThread.java:61)

As title

I'm getting this error while trying to trace pytorch model.
return
UnsupportedNodeError: GeneratorExp aren't supported:
at /usr/local/lib/python3.6/dist-packages/torch/nn/modules/rnn.py:105:31
any_param = next(self.parameters()).data
if not any_param.is_cuda or not torch.backends.cudnn.is_acceptable(any_param):
return

    # If any parameters alias, we fall back to the slower, copying code path. This is
    # a sufficient check, because overlapping parameter buffers that don't completely
    # alias would break the assumptions of the uniqueness check in
    # Module.named_parameters().
    all_weights = self._flat_weights
    unique_data_ptrs = set(p.data_ptr() for p in all_weights)
                           ~ <--- HERE
    if len(unique_data_ptrs) != len(all_weights):
        return

    with torch.cuda.device_of(any_param):
        import torch.backends.cudnn.rnn as rnn

        # NB: This is a temporary hack while we still don't have Tensor
        # bindings for ATen functions
        with torch.no_grad():

In my own model, I need three input tensors,but now i still can't solve this problem. It seems that Ivalue from only accept one tensor. So what can I do to send three inputs in my model?
code:
final Tensor outputTensor = module.forward(IValue.from(inputTensor1,inputTensor2)).toTensor();

Is there any tutorial of creating the model of the example Language Processing Example?
I want to create an NER model.
Thanks!

I have a custom model that is a variation on YOLOv3, to test the results, I have asserted that the inputTensor on device is the same as that I am loading on the computer. The output (which has detections and classifications) is giving near identical object and class confidences. However, the locations (x,y,w,h) are slightly off. Is this expected behaviour? Do you know if there is anything in particular I should investigate in my model or the trace of my model?

• What went wrong:
  A problem occurred configuring root project 'PyTorchDemoApp'.

Could not resolve all artifacts for configuration ':classpath'.
Could not download guava.jar (com.google.guava:guava:27.0.1-jre)
> Could not get resource 'https://jcenter.bintray.com/com/google/guava/guava/27.0.1-jre/guava-27.0.1-jre.jar'.
> Could not GET 'https://d29vzk4ow07wi7.cloudfront.net/e1c814fd04492a27c38e0317eabeaa1b3e950ec8010239e400fe90ad6c9107b4?response-content-disposition=attachment%3Bfilename%3D%22guava-27.0.1-jre.jar%22&Policy=eyJTdGF0ZW1lbnQiOiBbeyJSZXNvdXJjZSI6Imh0dHAqOi8vZDI5dnprNG93MDd3aTcuY2xvdWRmcm9udC5uZXQvZTFjODE0ZmQwNDQ5MmEyN2MzOGUwMzE3ZWFiZWFhMWIzZTk1MGVjODAxMDIzOWU0MDBmZTkwYWQ2YzkxMDdiND9yZXNwb25zZS1jb250ZW50LWRpc3Bvc2l0aW9uPWF0dGFjaG1lbnQlM0JmaWxlbmFtZSUzRCUyMmd1YXZhLTI3LjAuMS1qcmUuamFyJTIyIiwiQ29uZGl0aW9uIjp7IkRhdGVMZXNzVGhhbiI6eyJBV1M6RXBvY2hUaW1lIjoxNTcxMDI1NzgzfSwiSXBBZGRyZXNzIjp7IkFXUzpTb3VyY2VJcCI6IjAuMC4wLjAvMCJ9fX1dfQ__&Signature=EHYRkIOE9b6FTEOUxmoECRNEqBb0yEv49UZyjwwQhCM~Qp9Oh4LDSPQpOlt7QqzyzWEtXoAOfCvqMi7ishga9KTSuxVnPTL97x4bcwdCpXaKafO4ItobvV5qTHgq-2OQ9hNa2E-Bwgyild6XYKMLbkGTOS~OGw6-IPB0I-galaLp8PuyucOlqOryk42zkA1B3OjD90vkPmTNX3bcHHn1WTgWtRSjkVKYzJjuHMWS9nH9iRl1mGOMHpJiGkNtclPijzs5fJASbcAFMgVHrePbFPfRkt7PHzeYcjv15XVED861e1S0sZCfylzUuVEhK~Xsmt-gVr~Tfl30Auu-SmvjuA__&Key-Pair-Id=APKAIFKFWOMXM2UMTSFA'.
> Remote host closed connection during handshake
Could not download kotlin-reflect.jar (org.jetbrains.kotlin:kotlin-reflect:1.3.41)
> Could not get resource 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-reflect/1.3.41/kotlin-reflect-1.3.41.jar'.
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> Remote host closed connection during handshake
Could not download gson.jar (com.google.code.gson:gson:2.8.5)
> Could not get resource 'https://jcenter.bintray.com/com/google/code/gson/gson/2.8.5/gson-2.8.5.jar'.
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> Remote host closed connection during handshake
Could not download kotlin-stdlib.jar (org.jetbrains.kotlin:kotlin-stdlib:1.3.41)
> Could not get resource 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-stdlib/1.3.41/kotlin-stdlib-1.3.41.jar'.
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> Remote host closed connection during handshake

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

HI,I use other torchvision models,Only resnet works normally.

W/ResourceType: No package identifier when getting name for resource number 0x00000000
D/ViewContentFactory: initViewContentFetcherClass took 13ms
I/ContentCatcher: ViewContentFetcher : ViewContentFetcher
D/ViewContentFactory: createInterceptor took 14ms
I/ContentCatcher: Interceptor : Catcher list invalid for [email protected]@215660984
Interceptor : Get featureInfo from config pick_mode
I/zygote64: Rejecting re-init on previously-failed class java.lang.Class<androidx.core.view.ViewCompat$2>: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/view/View$OnUnhandledKeyEventListener;
at void androidx.core.view.ViewCompat.setBackground(android.view.View, android.graphics.drawable.Drawable) (ViewCompat.java:2559)
at void androidx.appcompat.widget.ActionBarContainer.(android.content.Context, android.util.AttributeSet) (ActionBarContainer.java:63)
at java.lang.Object java.lang.reflect.Constructor.newInstance0(java.lang.Object[]) (Constructor.java:-2)
at java.lang.Object java.lang.reflect.Constructor.newInstance(java.lang.Object[]) (Constructor.java:334)
at android.view.View android.view.LayoutInflater.createView(java.lang.String, java.lang.String, android.util.AttributeSet) (LayoutInflater.java:651)
at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:794)
at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet) (LayoutInflater.java:734)
at void android.view.LayoutInflater.rInflate(org.xmlpull.v1.XmlPullParser, android.view.View, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:867)
at void android.view.LayoutInflater.rInflateChildren(org.xmlpull.v1.XmlPullParser, android.view.View, android.util.AttributeSet, boolean) (LayoutInflater.java:828)
at android.view.View android.view.LayoutInflater.inflate(org.xmlpull.v1.XmlPullParser, android.view.ViewGroup, boolean) (LayoutInflater.java:519)
at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup, boolean) (LayoutInflater.java:427)
at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup) (LayoutInflater.java:374)
at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:749)
at void androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:659)
at void androidx.appcompat.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:552)
at void androidx.appcompat.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:161)
at void org.pytorch.helloworld.MainActivity.onCreate(android.os.Bundle) (MainActivity.java:29)
at void android.app.Activity.performCreate(android.os.Bundle, android.os.PersistableBundle) (Activity.java:7098)
at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:7089)
I/zygote64: at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1215)
at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2770)
at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:2895)
at void android.app.ActivityThread.-wrap11(android.app.ActivityThread, android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:-1)
at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1616)
at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:106)
at void android.os.Looper.loop() (Looper.java:173)
at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6653)
at java.lang.Object java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) (Method.java:-2)
at void com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run() (RuntimeInit.java:547)
at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:821)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.view.View$OnUnhandledKeyEventListener" on path: DexPathList[[zip file "/data/app/org.pytorch.helloworld-Wmr9dqSpdIXoOCTGBBfpNw==/base.apk"],

thanks!

Hi, I want to learn about how to apply pytorch model on andorid platform. And this android-demo-app is very useful to me.
The PyTorchDemoApp has already been deployed on my android mobile ,and it can be runned successfully.
But I want to know how to create a custom model with my own Image data.
When I copy the model.pt from HelloWorldApp, the PyTorchDemoApp crashes and tells me " Sorry There is an error"
Can anyone tell me how to create a custom model?
Thanks very much.

public void test(View view) {
        Module module = null;
        Log.i("test", "test: load pt fail!");
        try {
            // creating bitmap from packaged into app android asset 'image.jpg',
            // app/src/main/assets/image.jpg
            // loading serialized torchscript module from packaged into app android asset model.pt,
            // app/src/model/assets/model.pt
            String str = assetFilePath(this, "urban.pt");
            module = Module.load(str);
        } catch (Exception e) {
            Log.e("PytorchHelloWorld", "Error reading assets", e);
            finish();
        }
        Log.i("test", "test: load pt success!");
        Toast.makeText(MainActivity.this,"测试按钮3",Toast.LENGTH_SHORT).show();
    }

when program run on
module = Module.load(str);

a exception will be caught

2019-12-06 16:07:47.811 6636-6636/com.example.activitytest E/PytorchHelloWorld: Error reading assets
    com.facebook.jni.CppException: [enforce fail at inline_container.cc:137] . PytorchStreamReader failed reading zip archive: failed finding central directory
    (no backtrace available)
        at org.pytorch.Module$NativePeer.initHybrid(Native Method)
        at org.pytorch.Module$NativePeer.<init>(Module.java:70)
        at org.pytorch.Module.<init>(Module.java:25)
        at org.pytorch.Module.load(Module.java:21)
        at com.example.activitytest.MainActivity.test(MainActivity.java:50)
        at java.lang.reflect.Method.invoke(Native Method)
        at androidx.appcompat.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:397)
        at android.view.View.performClick(View.java:6669)
        at android.view.View.performClickInternal(View.java:6638)
        at android.view.View.access$3100(View.java:789)
        at android.view.View$PerformClick.run(View.java:26145)
        at android.os.Handler.handleCallback(Handler.java:873)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:193)
        at android.app.ActivityThread.main(ActivityThread.java:6863)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:537)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)

i have no idea about this question

could you help me?

the output of my network is 3d, but getDataAsFloatArray() can only return a 1d float[]
float[] outArr = outputTensor.getDataAsFloatArray();

The iOS demo has to set a quantization backend before loading the model, is this operation necessary on Android? and how?

I have a problem with run model YOLO implemented in Pytorch. I used a few repositories e.g:
https://github.com/eriklindernoren/PyTorch-YOLOv3
https://github.com/ayooshkathuria/pytorch-yolo-v3

To save YOLO model in .pt I add to detect.py (in both project) below lines after "model.eval()":
model.eval()
example = get_test_input() #return common image (size 416x416 which is equal to input size)
traced_script_module = torch.jit.trace(model, example)
traced_script_module.save("./yolov3_model.pt")

Model saved correctly with below warnings:
C:(...)\models.py:204: TracerWarning: Converting a tensor to a Python boolean might cause the trace to be incorrect. We can't record the data flow of Python values, so this value will be treated as a constant in the future. This means that the trace might not generalize to other inputs!
if grid_size != self.grid_size:
C:(...)\models.py:208: TracerWarning: Converting a tensor to a Python index might cause the trace to be incorrect. We can't record the data flow of Python values, so this value will be treated as a constant in the future. This means that the trace might not generalize to other inputs!
pred_boxes = FloatTensor(prediction[..., :4].shape)

When I copy this saved model to assets and trying to run HelloWorld/Demo App I got error:

E/AndroidRuntime: FATAL EXCEPTION: main
Process: org.pytorch.helloworld, PID: 20315
java.lang.RuntimeException: Unable to start activity ComponentInfo{org.pytorch.helloworld/org.pytorch.helloworld.MainActivity}: com.facebook.jni.CppException: empty_strided not implemented for TensorTypeSet(VariableTensorId, CUDATensorId) (empty_strided at aten/src/ATen/Functions.h:3771)
(no backtrace available)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2521)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2595)
at android.app.ActivityThread.access$800(ActivityThread.java:178)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1470)
at android.os.Handler.dispatchMessage(Handler.java:111)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5631)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754)
Caused by: com.facebook.jni.CppException: empty_strided not implemented for TensorTypeSet(VariableTensorId, CUDATensorId) (empty_strided at aten/src/ATen/Functions.h:3771)
(no backtrace available)
at org.pytorch.NativePeer.initHybrid(Native Method)
at org.pytorch.NativePeer.(NativePeer.java:20)
at org.pytorch.Module.load(Module.java:23)
at org.pytorch.helloworld.MainActivity.onCreate(MainActivity.java:39)
at android.app.Activity.performCreate(Activity.java:6092)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1112)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2468)
... 10 more

I can add that I was trying to save this model with and without CUDA (using set CUDA_VISIBLE_DEVICES=-1)

Moreover I change in project (in other case it resolve problem):
implementation 'org.pytorch:pytorch_android:1.4.0-SNAPSHOT'
implementation 'org.pytorch:pytorch_android_torchvision:1.4.0-SNAPSHOT'

I also tried with other custom models (models from torch vision working well-I tried a few) and get similar result. Is anyone who can say what is wrong or how to save model to work correctly in this demo app?

Downladed the assets and tried running on android device.
Log:
java.lang.RuntimeException: Unable to start activity ComponentInfo{org.pytorch.helloworld/org.pytorch.helloworld.MainActivity}: com.facebook.jni.CppException: false CHECK FAILED at ../torch/csrc/jit/import.cpp (deserialize at ../torch/csrc/jit/import.cpp:178) (no backtrace available) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2946) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3081) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1831) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:201) at android.app.ActivityThread.main(ActivityThread.java:6806) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873) Caused by: com.facebook.jni.CppException: false CHECK FAILED at ../torch/csrc/jit/import.cpp (deserialize at ../torch/csrc/jit/import.cpp:178) (no backtrace available) at org.pytorch.Module$NativePeer.initHybrid(Native Method) at org.pytorch.Module$NativePeer.<init>(Module.java:70) at org.pytorch.Module.<init>(Module.java:25) at org.pytorch.Module.load(Module.java:21) at org.pytorch.helloworld.MainActivity.onCreate(MainActivity.java:39) at android.app.Activity.performCreate(Activity.java:7224) at android.app.Activity.performCreate(Activity.java:7213) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1272) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2926) ... 11 more

Hi,

I transformed my custom model by doing same procedure of pytorch tutorial and it seems no problem when loading the model in Android.

Then I feed the input (exactly the same image that is included the assets folder of HelloWorldApp) to the loaded model by using model.forward(IValue.from(inputTensor)).ToTensor() like MainActivity.java of HelloWorldApp.

Only one line I have changed from original MainActivity.java of HelloWorldApp is the line which tries to load the model in assets folder because of loading custom model.

And error occurred, the details are below:
2019-10-25 13:20:53.412 3461-3532/org.pytorch.helloworld E/ZrHungImpl: sendAppFreezeEvent failed!

I checked there was no problem just before feeding the input to the model by using log.d funciton.
I also searched sendAppFreezeEvent but there were no enough information.

Are there any suggestions?
Thanks,

This line in the example expects a single vector as network output:

final float[] scores = outputTensor.getDataAsFloatArray();

Is there a function that accepts multiple outputs from the model?

Need help
Module.load is giving error "CppException: false CHECK FAILED at aten/src/ATen/Functions.h "
What is the reason? Even i can reproduce this issue with simple convolution layer.

2019-12-30 08:51:20.487 28171-28328/org.pytorch.demo E/PyTorchDemo: Error during image analysis com.facebook.jni.CppException: false CHECK FAILED at aten/src/ATen/Functions.h (empty at aten/src/ATen/Functions.h:3535) (no backtrace available) at org.pytorch.Module$NativePeer.initHybrid(Native Method) at org.pytorch.Module$NativePeer.<init>(Module.java:70) at org.pytorch.Module.<init>(Module.java:25) at org.pytorch.Module.load(Module.java:21) at org.pytorch.demo.vision.ImageClassificationActivity.analyzeImage(ImageClassificationActivity.java:166) at org.pytorch.demo.vision.ImageClassificationActivity.analyzeImage(ImageClassificationActivity.java:31) at org.pytorch.demo.vision.AbstractCameraXActivity.lambda$setupCameraX$2$AbstractCameraXActivity(AbstractCameraXActivity.java:90) at org.pytorch.demo.vision.-$$Lambda$AbstractCameraXActivity$t0OjLr-l_M0-_0_dUqVE4yqEYnE.analyze(Unknown Source:2) at androidx.camera.core.ImageAnalysisAbstractAnalyzer.analyzeImage(ImageAnalysisAbstractAnalyzer.java:57) at androidx.camera.core.ImageAnalysisNonBlockingAnalyzer$1.run(ImageAnalysisNonBlockingAnalyzer.java:135) at android.os.Handler.handleCallback(Handler.java:907) at android.os.Handler.dispatchMessage(Handler.java:105) at android.os.Looper.loop(Looper.java:216) at android.os.HandlerThread.run(HandlerThread.java:65)

The compiled android module is attached below.

android_torch_test.zip

Script to reproduce this issue:

`
import torch
import torch.nn as nn
import torchvision
from torchsummary import summary

class MyBlock(nn.Module):
def init(self, ninput, noutput):
super().init()
self.conv = nn.Conv2d(ninput, noutput - ninput, (3, 3), stride=2, padding=1, bias=True)
def forward(self, input):
return self.conv(input)

model = MyBlock(3,16).cuda()
model.eval()

print("-----MODEL---------")
print(model)

example_input = torch.rand(1, 3, 512, 1024).cuda()
print("Input Shape = ", example_input.shape)
print("-----MODEL SUMMARY---------")
print(summary(model, example_input.shape[1:]))

traced_script_module = torch.jit.trace(model, example_input)
traced_script_module.save("android_torch_test.pt")

`

Pytorch Version

I tried changing filenames of "android_torch_test.pt" to many, but upon Module.load, im getting model load error.
But if i load any models present in assets folder, its loading fine.

Hello, I successfully run models on android following thees demos. When I want to use model.half() and trace tensor in half precision to accelerate the process, tracing models in half precision seems ok. However, I can not find toHalf() in the Tensor java class.

Is the half precision supported now?

Does there have official prebuilt libtorch.so for the android aarch64 platform? How can I get it? really thanks.

I've converted custom pytorch model, and trying to run on android , and raises error when trying run module.forward().
Caused by: com.facebook.jni.CppException: false CHECK FAILED at ../aten/src/ATen/core/function_schema_inl.h (checkAndNormalizeInputs at ../aten/src/ATen/core/function_schema_inl.h:270)
(no backtrace available)
what does that mean , and how to bypass that?????

Hi , I'm trying to load a custom model on mobile device ,
error : Caused by: com.facebook.jni.CppException: Legacy model format is not supported on mobile. (deserialize at /var/lib/jenkins/workspace/torch/csrc/jit/import.cpp:201)
(no backtrace available)

Can anybody tell me, what does that mean. what is legacy model format???

I have converted model (MORAN - https://github.com/Canjie-Luo/MORAN_v2) with torch script, I used pytorch=1.3.1, torchvision=0.4.2.
When I tried to load with cpp, It worked. But when load model in Android using HelloWorld example, there was an error:
Unable to start activity ComponentInfo{org.pytorch.helloworld/org.pytorch.helloworld.MainActivity}: com.facebook.jni.CppException: false CHECK FAILED at ../c10/core/Backend.h (tensorTypeIdToBackend at ../c10/core/Backend.h:106)

line code to load model: module = Module.load(assetFilePath(this, model_name));

I tried to build Pytorch demo app for the first time. I am new to gradlew etc. having only used CMake and Make etc for C/C++ builds in past. I tried the following steps but installDebug is not found. ./gradlew tasks definitely doesn't have any installDebug tasks.

Is the documentation old or am I missing a step or two below? I do have Android SDK and NDK installed as far as I can tell.

$ git clone https://github.com/pytorch/android-demo-app.git
$ cd android-demo-app
$ cd HelloWorldApp
$ python trace_model.py
$ ./gradlew installDebug
FAILURE: Build failed with an exception.

* What went wrong:
Task 'installDebug' not found in root project 'HelloWorldApp'.

* Try:
Run gradlew tasks to get a list of available tasks. Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 0s
$ ./gradlew tasks

> Task :tasks

------------------------------------------------------------
Tasks runnable from root project
------------------------------------------------------------

Android tasks
-------------
sourceSets - Prints out all the source sets defined in this project.

Build tasks
-----------
assemble - Assembles all variants of all applications and secondary packages.
assembleAndroidTest - Assembles all the Test applications.
build - Assembles and tests this project.
buildDependents - Assembles and tests this project and all projects that depend on it.
buildNeeded - Assembles and tests this project and all projects it depends on.
clean - Deletes the build directory.
cleanBuildCache - Deletes the build cache directory.

Build Setup tasks
-----------------
init - Initializes a new Gradle build.
wrapper - Generates Gradle wrapper files.

Help tasks
----------
buildEnvironment - Displays all buildscript dependencies declared in root project 'HelloWorldApp'.
components - Displays the components produced by root project 'HelloWorldApp'. [incubating]
dependencies - Displays all dependencies declared in root project 'HelloWorldApp'.
dependencyInsight - Displays the insight into a specific dependency in root project 'HelloWorldApp'.
dependentComponents - Displays the dependent components of components in root project 'HelloWorldApp'. [incubating]
help - Displays a help message.
model - Displays the configuration model of root project 'HelloWorldApp'. [incubating]
projects - Displays the sub-projects of root project 'HelloWorldApp'.
properties - Displays the properties of root project 'HelloWorldApp'.
tasks - Displays the tasks runnable from root project 'HelloWorldApp' (some of the displayed tasks may belong to subprojects).

Install tasks
-------------
uninstallAll - Uninstall all applications.

Verification tasks
------------------
check - Runs all checks.
connectedCheck - Runs all device checks on currently connected devices.
deviceCheck - Runs all device checks using Device Providers and Test Servers.

To see all tasks and more detail, run gradlew tasks --all

To see more detail about a task, run gradlew help --task <task>

BUILD SUCCESSFUL in 0s
1 actionable task: 1 executed

above.

Hi,

I use Android Studio 3.5.2 and encounter below issue.

ERROR: Unable to resolve dependency for ':app@debug/compileClasspath': Failed to transform artifact 'pytorch_android.aar (org.pytorch:pytorch_android:1.4.0-SNAPSHOT::20200103.095904-96)

Hi!

Have a question - how to implement Non Maximum Suppression in Android application?

As I understand - maybe it's to compile with this C++ code for NMS:
https://github.com/pytorch/vision/blob/master/torchvision/csrc/cpu/nms_cpu.cpp
But in that case I need to add also torch dependencies to compilation somehow...

Maybe there is the better way?

• Some Android Java NMS implementations ? (was unable to find it after one hour of googling)
• Or maybe somehow to implement it with pytorch and then script it with torch.jit.script ?

Would be grateful for help :)

Hi! I used a pre trained resnet 18 model and have run it on my dataset, after that I have saved it as it was described in tutorial (https://heartbeat.fritz.ai/pytorch-mobile-image-classification-on-android-5c0cfb774c5b). I have torch version 1.3.0, which is correct. My programme works correctly with the model from a tutorial as well, but when I am running my custom one, I get this error message:

E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.carclassificator, PID: 13187 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.carclassificator/com.example.carclassificator.CarImageActivity}: com.facebook.jni.CppException: false CHECK FAILED at ../c10/core/Backend.h (tensorTypeIdToBackend at ../c10/core/Backend.h:106) (no backtrace available) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3150) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3260) at android.app.ActivityThread.access$1000(ActivityThread.java:218) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1734) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:145) at android.app.ActivityThread.main(ActivityThread.java:6934) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1404) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1199) Caused by: com.facebook.jni.CppException: false CHECK FAILED at ../c10/core/Backend.h (tensorTypeIdToBackend at ../c10/core/Backend.h:106) (no backtrace available) at org.pytorch.Module$NativePeer.initHybrid(Native Method) at org.pytorch.Module$NativePeer.<init>(Module.java:70) at org.pytorch.Module.<init>(Module.java:25) at org.pytorch.Module.load(Module.java:21) at com.example.carclassificator.Classifier.<init>(Classifier.java:18) at com.example.carclassificator.CarImageActivity.onCreate(CarImageActivity.java:47) at android.app.Activity.performCreate(Activity.java:6609) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1134) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3103) ... 10 more

Can you help me, please?

As i am trying to load custom pytorch lstm model in android studio using torch.load() .. it is throwing error which is mentioned below.
Would anyone mind helping me out in this. What is the right way to load any custom model using
torch.load() function.

Process: org.pytorch.helloworld, PID: 31234
java.lang.RuntimeException: Unable to start activity ComponentInfo{org.pytorch.helloworld/org.pytorch.helloworld.MainActivity}: com.facebook.jni.CppException: open file failed, file path: torchmoji.pt (FileAdapter at ../caffe2/serialize/file_adapter.cc:11)
(no backtrace available)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2659)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2724)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1473)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6123)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:757)
Caused by: com.facebook.jni.CppException: open file failed, file path: torchmoji.pt (FileAdapter at ../caffe2/serialize/file_adapter.cc:11)
(no backtrace available)
at org.pytorch.NativePeer.initHybrid(Native Method)
at org.pytorch.NativePeer.(NativePeer.java:18)
at org.pytorch.Module.load(Module.java:23)
at org.pytorch.helloworld.MainActivity.onCreate(MainActivity.java:94)
at android.app.Activity.performCreate(Activity.java:6672)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1140)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2612)
... 9 more

I am trying to replace the neural network model
with my own model. My own model works well in Pytorch. And I have converted my own model to TorchScript.

The following is specific error :

`E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.abc.APP, PID: 27480
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=-1, data=Intent { act=inline-data (has extras) }} to activity {com.abc.APP/com.abc.APP.MainActivity}: java.lang.RuntimeException: Expected object of scalar type Int but got scalar type Float for argument #2 'mat2' in call to _th_mm
The above operation failed in interpreter.
Traceback (most recent call last):
File "C:\Users\aaa\AppData\Local\conda\conda\envs\pytorch\lib\site-packages\torch\nn\functional.py", line 1372
ret = torch.addmm(bias, input, weight.t())
else:
output = input.matmul(weight.t())
~~~~~~~~~~~~ <--- HERE
if bias is not None:
output += bias
Serialized File "code/torch/torch/nn/functional/___torch_mangle_948.py", line 13
ret = torch.addmm(bias0, input, torch.t(weight), beta=1, alpha=1)
else:
output = torch.matmul(input, torch.t(weight))
~~~~~~~~~~~~ <--- HERE
if torch.isnot(bias, None):
bias1 = unchecked_cast(Tensor, bias)

    at android.app.ActivityThread.deliverResults(ActivityThread.java:4423)
    at android.app.ActivityThread.handleSendResult(ActivityThread.java:4465)
    at android.app.servertransaction.ActivityResultItem.execute(ActivityResultItem.java:49)
    at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1831)
    at android.os.Handler.dispatchMessage(Handler.java:106)
    at android.os.Looper.loop(Looper.java:201)
    at android.app.ActivityThread.main(ActivityThread.java:6810)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873)
 Caused by: java.lang.RuntimeException: Expected object of scalar type Int but got scalar type Float for argument #2 'mat2' in call to _th_mm
The above operation failed in interpreter.
Traceback (most recent call last):
  File "C:\Users\aaa\AppData\Local\conda\conda\envs\pytorch\lib\site-packages\torch\nn\functional.py", line 1372
        ret = torch.addmm(bias, input, weight.t())
    else:
        output = input.matmul(weight.t())
                 ~~~~~~~~~~~~ <--- HERE
        if bias is not None:
            output += bias
Serialized   File "code/__torch__/torch/nn/functional/___torch_mangle_948.py", line 13
    ret = torch.addmm(bias0, input, torch.t(weight), beta=1, alpha=1)
  else:
    output = torch.matmul(input, torch.t(weight))
             ~~~~~~~~~~~~ <--- HERE
    if torch.__isnot__(bias, None):
      bias1 = unchecked_cast(Tensor, bias)

    at org.pytorch.NativePeer.forward(Native Method)
    at org.pytorch.Module.forward(Module.java:37)
    at com.abc.APP.Classifier.predict(Classifier.java:60)
    at com.abc.APP.MainActivity.onActivityResult(MainActivity.java:59)
    at android.app.Activity.dispatchActivityResult(Activity.java:7590)
    at android.app.ActivityThread.deliverResults(ActivityThread.java:4416)
    	... 11 more`

could you help me ?

~/Downloads/android-demo-app/HelloWorldApp$ ./gradlew installDebug

FAILURE: Build failed with an exception.

• What went wrong:
  Task 'installDebug' not found in root project 'HelloWorldApp'.

• Try:
  Run gradlew tasks to get a list of available tasks. Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 0s

From each prediction, we get back score of each result. I know that the number that close to 0 is the best predicted result.

My questions are

1. How is the score calculated internally ?
2. Why the score is negative?
3. How to get percentage of the result based on the score?

Thanks.

Last week my app with pytorch_android:1.4.0-SNAPSHOT run good.But I rebuild my app.My app happen native crash.

#00 pc 00000000001b4df8 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.442 14942 14942 F DEBUG : #01 pc 0000000000fa0e3c /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.442 14942 14942 F DEBUG : #02 pc 0000000000f946cc /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.442 14942 14942 F DEBUG : #03 pc 0000000000f5fdfc /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.442 14942 14942 F DEBUG : #04 pc 0000000000f6969c /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.442 14942 14942 F DEBUG : #05 pc 0000000000f9ce84 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.442 14942 14942 F DEBUG : #06 pc 0000000000f9cc30 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.442 14942 14942 F DEBUG : #07 pc 0000000000f93718 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.442 14942 14942 F DEBUG : #08 pc 0000000000f5fc40 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.442 14942 14942 F DEBUG : #09 pc 0000000000f86f1c /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.442 14942 14942 F DEBUG : #10 pc 0000000000f5de90 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.442 14942 14942 F DEBUG : #11 pc 0000000000f57834 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.442 14942 14942 F DEBUG : #12 pc 0000000000f54114 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.442 14942 14942 F DEBUG : #13 pc 0000000000f533d4 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.442 14942 14942 F DEBUG : #14 pc 0000000000f52e6c /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.442 14942 14942 F DEBUG : #15 pc 0000000001025ba4 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.442 14942 14942 F DEBUG : #16 pc 0000000000f4f360 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.442 14942 14942 F DEBUG : #17 pc 0000000000d9fbd0 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #18 pc 0000000000d9b34c /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #19 pc 0000000000d97f60 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #20 pc 0000000000da9c30 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #21 pc 0000000000fbf1b0 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #22 pc 0000000000d9f220 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #23 pc 0000000000d9b34c /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #24 pc 0000000000d97f60 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #25 pc 0000000000da9c30 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #26 pc 0000000000fbf1b0 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #27 pc 0000000000d9f220 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #28 pc 0000000000d9b34c /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #29 pc 0000000000d97f60 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #30 pc 0000000000d98488 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #31 pc 0000000000dae8e0 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #32 pc 0000000000d806c8 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #33 pc 0000000000d7abcc /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #34 pc 0000000000d79be8 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #35 pc 0000000000d79778 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #36 pc 0000000000dacb9c /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #37 pc 0000000000dae580 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #38 pc 0000000000dad9c0 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #39 pc 0000000000dae27c /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #40 pc 0000000000dae3d8 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so 01-04 10:14:40.443 14942 14942 F DEBUG : #41 pc 000000000011593c /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so (pytorch_jni::PytorchJni::PytorchJni(facebook::jni::alias_ref<_jstring*>)+104) 01-04 10:14:40.443 14942 14942 F DEBUG : #42 pc 0000000000115704 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so (_ZN8facebook3jni11HybridClassIN11pytorch_jni10PytorchJniENS0_6detail15BaseHybridClassEE15makeCxxInstanceIJRNS0_9alias_refIP8_jstringEEEEENS0_16basic_strong_refINS4_10HybridDataENS0_23LocalReferenceAllocatorEEEDpOT_+64) 01-04 10:14:40.443 14942 14942 F DEBUG : #43 pc 0000000000114298 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so (pytorch_jni::PytorchJni::initHybrid(facebook::jni::alias_ref<_jclass*>, facebook::jni::alias_ref<_jstring*>)+44) 01-04 10:14:40.443 14942 14942 F DEBUG : #44 pc 00000000001163cc /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/lib/arm64/libpytorch_jni.so (_ZN8facebook3jni6detail15FunctionWrapperIPFNS0_16basic_strong_refIPNS1_8JTypeForINS1_10HybridDataENS0_7JObjectEvE11_javaobjectENS0_23LocalReferenceAllocatorEEENS0_9alias_refIP7_jclassEENSC_IP8_jstringEEEXadL_ZN11pytorch_jni10PytorchJni10initHybridESF_SI_EESE_SB_JSI_EE4callEP7_JNIEnvP8_jobjectSH_+68) 01-04 10:14:40.443 14942 14942 F DEBUG : #45 pc 0000000000020ddc /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/oat/arm64/base.odex (offset 0x1e000) (org.pytorch.NativePeer.initHybrid+172) 01-04 10:14:40.443 14942 14942 F DEBUG : #46 pc 000000000055564c /system/lib64/libart.so (art_quick_invoke_static_stub+604) 01-04 10:14:40.444 14942 14942 F DEBUG : #47 pc 00000000000cf714 /system/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+232) 01-04 10:14:40.444 14942 14942 F DEBUG : #48 pc 000000000027f2e0 /system/lib64/libart.so (art::interpreter::ArtInterpreterToCompiledCodeBridge(art::Thread*, art::ArtMethod*, art::ShadowFrame*, unsigned short, art::JValue*)+344) 01-04 10:14:40.444 14942 14942 F DEBUG : #49 pc 00000000002792e8 /system/lib64/libart.so (bool art::interpreter::DoCall<false, false>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, art::JValue*)+968) 01-04 10:14:40.444 14942 14942 F DEBUG : #50 pc 0000000000525e5c /system/lib64/libart.so (MterpInvokeStatic+204) 01-04 10:14:40.444 14942 14942 F DEBUG : #51 pc 0000000000547a94 /system/lib64/libart.so (ExecuteMterpImpl+14612) 01-04 10:14:40.444 14942 14942 F DEBUG : #52 pc 00000000003b6050 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/oat/arm64/base.vdex (org.pytorch.NativePeer.<init>+6) 01-04 10:14:40.444 14942 14942 F DEBUG : #53 pc 0000000000252fec /system/lib64/libart.so (_ZN3art11interpreterL7ExecuteEPNS_6ThreadERKNS_20CodeItemDataAccessorERNS_11ShadowFrameENS_6JValueEb.llvm.3126947107+488) 01-04 10:14:40.444 14942 14942 F DEBUG : #54 pc 0000000000258ae0 /system/lib64/libart.so (art::interpreter::ArtInterpreterToInterpreterBridge(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame*, art::JValue*)+216) 01-04 10:14:40.444 14942 14942 F DEBUG : #55 pc 00000000002792cc /system/lib64/libart.so (bool art::interpreter::DoCall<false, false>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, art::JValue*)+940) 01-04 10:14:40.444 14942 14942 F DEBUG : #56 pc 0000000000525c98 /system/lib64/libart.so (MterpInvokeDirect+296) 01-04 10:14:40.444 14942 14942 F DEBUG : #57 pc 0000000000547a14 /system/lib64/libart.so (ExecuteMterpImpl+14484) 01-04 10:14:40.444 14942 14942 F DEBUG : #58 pc 00000000003b6008 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/oat/arm64/base.vdex (org.pytorch.Module.load+36) 01-04 10:14:40.444 14942 14942 F DEBUG : #59 pc 0000000000252fec /system/lib64/libart.so (_ZN3art11interpreterL7ExecuteEPNS_6ThreadERKNS_20CodeItemDataAccessorERNS_11ShadowFrameENS_6JValueEb.llvm.3126947107+488) 01-04 10:14:40.444 14942 14942 F DEBUG : #60 pc 0000000000258ae0 /system/lib64/libart.so (art::interpreter::ArtInterpreterToInterpreterBridge(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame*, art::JValue*)+216) 01-04 10:14:40.444 14942 14942 F DEBUG : #61 pc 00000000002792cc /system/lib64/libart.so (bool art::interpreter::DoCall<false, false>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, art::JValue*)+940) 01-04 10:14:40.444 14942 14942 F DEBUG : #62 pc 0000000000525e5c /system/lib64/libart.so (MterpInvokeStatic+204) 01-04 10:14:40.444 14942 14942 F DEBUG : #63 pc 0000000000547a94 /system/lib64/libart.so (ExecuteMterpImpl+14612) 01-04 10:14:40.444 14942 14942 F DEBUG : #64 pc 00000000001117e0 /data/app/com.tct.hermes-gJL2ify1IrxkQxcOJCg9kg==/oat/arm64/base.vdex (com.tct.hermes.ai.pytorch.PytorchTrainingService.onCreate+48) 01-04 10:14:40.444 14942 14942 F DEBUG : #65 pc 0000000000252fec /system/lib64/libart.so (_ZN3art11interpreterL7ExecuteEPNS_6ThreadERKNS_20CodeItemDataAccessorERNS_11ShadowFrameENS_6JValueEb.llvm.3126947107+488) 01-04 10:14:40.444 14942 14942 F DEBUG : #66 pc 0000000000258ae0 /system/lib64/libart.so (art::interpreter::ArtInterpreterToInterpreterBridge(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame*, art::JValue*)+216) 01-04 10:14:40.444 14942 14942 F DEBUG : #67 pc 00000000002792cc /system/lib64/libart.so (bool art::interpreter::DoCall<false, false>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, art::JValue*)+940) 01-04 10:14:40.444 14942 14942 F DEBUG : #68 pc 0000000000524958 /system/lib64/libart.so (MterpInvokeVirtual+588) 01-04 10:14:40.444 14942 14942 F DEBUG : #69 pc 0000000000547914 /system/lib64/libart.so (ExecuteMterpImpl+14228) 01-04 10:14:40.444 14942 14942 F DEBUG : #70 pc 00000000003976f8 /system/framework/boot-framework.vdex (android.app.ActivityThread.handleCreateService+206) 01-04 10:14:40.444 14942 14942 F DEBUG : #71 pc 0000000000252fec /system/lib64/libart.so (_ZN3art11interpreterL7ExecuteEPNS_6ThreadERKNS_20CodeItemDataAccessorERNS_11ShadowFrameENS_6JValueEb.llvm.3126947107+488) 01-04 10:14:40.444 14942 14942 F DEBUG : #72 pc 0000000000258ae0 /system/lib64/libart.so (art::interpreter::ArtInterpreterToInterpreterBridge(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame*, art::JValue*)+216) 01-04 10:14:40.444 14942 14942 F DEBUG : #73 pc 00000000002792cc /system/lib64/libart.so (bool art::interpreter::DoCall<false, false>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, art::JValue*)+940) 01-04 10:14:40.444 14942 14942 F DEBUG : #74 pc 0000000000525c98 /system/lib64/libart.so (MterpInvokeDirect+296) 01-04 10:14:40.445 14942 14942 F DEBUG : #75 pc 0000000000547a14 /system/lib64/libart.so (ExecuteMterpImpl+14484) 01-04 10:14:40.445 14942 14942 F DEBUG : #76 pc 00000000004cc0d0 /system/framework/boot-framework.vdex (android.app.ActivityThread.access$1300) 01-04 10:14:40.445 14942 14942 F DEBUG : #77 pc 0000000000252fec /system/lib64/libart.so (_ZN3art11interpreterL7ExecuteEPNS_6ThreadERKNS_20CodeItemDataAccessorERNS_11ShadowFrameENS_6JValueEb.llvm.3126947107+488) 01-04 10:14:40.445 14942 14942 F DEBUG : #78 pc 0000000000258ae0 /system/lib64/libart.so (art::interpreter::ArtInterpreterToInterpreterBridge(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame*, art::JValue*)+216) 01-04 10:14:40.445 14942 14942 F DEBUG : #79 pc 00000000002792cc /system/lib64/libart.so (bool art::interpreter::DoCall<false, false>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, art::JValue*)+940) 01-04 10:14:40.445 14942 14942 F DEBUG : #80 pc 0000000000525e5c /system/lib64/libart.so (MterpInvokeStatic+204) 01-04 10:14:40.445 14942 14942 F DEBUG : #81 pc 0000000000547a94 /system/lib64/libart.so (ExecuteMterpImpl+14612) 01-04 10:14:40.445 14942 14942 F DEBUG : #82 pc 00000000003930ae /system/framework/boot-framework.vdex (android.app.ActivityThread$H.handleMessage+1382) 01-04 10:14:40.445 14942 14942 F DEBUG : #83 pc 0000000000252fec /system/lib64/libart.so (_ZN3art11interpreterL7ExecuteEPNS_6ThreadERKNS_20CodeItemDataAccessorERNS_11ShadowFrameENS_6JValueEb.llvm.3126947107+488) 01-04 10:14:40.445 14942 14942 F DEBUG : #84 pc 0000000000258ae0 /system/lib64/libart.so (art::interpreter::ArtInterpreterToInterpreterBridge(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame*, art::JValue*)+216) 01-04 10:14:40.445 14942 14942 F DEBUG : #85 pc 00000000002792cc /system/lib64/libart.so (bool art::interpreter::DoCall<false, false>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, art::JValue*)+940) 01-04 10:14:40.445 14942 14942 F DEBUG : #86 pc 0000000000524958 /system/lib64/libart.so (MterpInvokeVirtual+588) 01-04 10:14:40.445 14942 14942 F DEBUG : #87 pc 0000000000547914 /system/lib64/libart.so (ExecuteMterpImpl+14228) 01-04 10:14:40.445 14942 14942 F DEBUG : #88 pc 0000000000b028a6 /system/framework/boot-framework.vdex (android.os.Handler.dispatchMessage+42) 01-04 10:14:40.445 14942 14942 F DEBUG : #89 pc 0000000000252fec /system/lib64/libart.so (_ZN3art11interpreterL7ExecuteEPNS_6ThreadERKNS_20CodeItemDataAccessorERNS_11ShadowFrameENS_6JValueEb.llvm.3126947107+488) 01-04 10:14:40.445 14942 14942 F DEBUG : #90 pc 0000000000258ae0 /system/lib64/libart.so (art::interpreter::ArtInterpreterToInterpreterBridge(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame*, art::JValue*)+216) 01-04 10:14:40.445 14942 14942 F DEBUG : #91 pc 00000000002792cc /system/lib64/libart.so (bool art::interpreter::DoCall<false, false>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, art::JValue*)+940) 01-04 10:14:40.445 14942 14942 F DEBUG : #92 pc 0000000000524958 /system/lib64/libart.so (MterpInvokeVirtual+588) 01-04 10:14:40.445 14942 14942 F DEBUG : #93 pc 0000000000547914 /system/lib64/libart.so (ExecuteMterpImpl+14228) 01-04 10:14:40.445 14942 14942 F DEBUG : #94 pc 0000000000b0998c /system/framework/boot-framework.vdex (android.os.Looper.loop+404) 01-04 10:14:40.445 14942 14942 F DEBUG : #95 pc 0000000000252fec /system/lib64/libart.so (_ZN3art11interpreterL7ExecuteEPNS_6ThreadERKNS_20CodeItemDataAccessorERNS_11ShadowFrameENS_6JValueEb.llvm.3126947107+488) 01-04 10:14:40.445 14942 14942 F DEBUG : #96 pc 0000000000258ae0 /system/lib64/libart.so (art::interpreter::ArtInterpreterToInterpreterBridge(art::Thread*, art::CodeItemDataAccessor const&, art::ShadowFrame*, art::JValue*)+216) 01-04 10:14:40.445 14942 14942 F DEBUG : #97 pc 00000000002792cc /system/lib64/libart.so (bool art::interpreter::DoCall<false, false>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, art::JValue*)+940) 01-04 10:14:40.445 14942 14942 F DEBUG : #98 pc 0000000000525e5c /system/lib64/libart.so (MterpInvokeStatic+204) 01-04 10:14:40.445 14942 14942 F DEBUG : #99 pc 0000000000547a94 /system/lib64/libart.so (ExecuteMterpImpl+14612) 01-04 10:14:40.445 14942 14942 F DEBUG : #100 pc 000000000039961a /system/framework/boot-framework.vdex (android.app.ActivityThread.main+214) 01-04 10:14:40.445 14942 14942 F DEBUG : #101 pc 0000000000252fec /system/lib64/libart.so (_ZN3art11interpreterL7ExecuteEPNS_6ThreadERKNS_20CodeItemDataAccessorERNS_11ShadowFrameENS_6JValueEb.llvm.3126947107+488) 01-04 10:14:40.445 14942 14942 F DEBUG : #102 pc 00000000005151ec /system/lib64/libart.so (artQuickToInterpreterBridge+1020) 01-04 10:14:40.446 14942 14942 F DEBUG : #103 pc 000000000055e4fc /system/lib64/libart.so (art_quick_to_interpreter_bridge+92) 01-04 10:14:40.446 14942 14942 F DEBUG : #104 pc 000000000055564c /system/lib64/libart.so (art_quick_invoke_static_stub+604) 01-04 10:14:40.446 14942 14942 F DEBUG : #105 pc 00000000000cf714 /system/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+232) 01-04 10:14:40.446 14942 14942 F DEBUG : #106 pc 000000000045ca48 /system/lib64/libart.so (art::(anonymous namespace)::InvokeWithArgArray(art::ScopedObjectAccessAlreadyRunnable const&, art::ArtMethod*, art::(anonymous namespace)::ArgArray*, art::JValue*, char const*)+104) 01-04 10:14:40.446 14942 14942 F DEBUG : #107 pc 000000000045e49c /system/lib64/libart.so (art::InvokeMethod(art::ScopedObjectAccessAlreadyRunnable const&, _jobject*, _jobject*, _jobject*, unsigned long)+1440) 01-04 10:14:40.446 14942 14942 F DEBUG : #108 pc 00000000003ee3dc /system/lib64/libart.so (art::Method_invoke(_JNIEnv*, _jobject*, _jobject*, _jobjectArray*)+52) 01-04 10:14:40.446 14942 14942 F DEBUG : #109 pc 000000000011e6d4 /system/framework/arm64/boot-core-oj.oat (offset 0x114000) (java.lang.Class.getDeclaredMethodInternal [DEDUPED]+180) 01-04 10:14:40.446 14942 14942 F DEBUG : #110 pc 0000000000555388 /system/lib64/libart.so (art_quick_invoke_stub+584) 01-04 10:14:40.446 14942 14942 F DEBUG : #111 pc 00000000000cf6f4 /system/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+200) 01-04 10:14:40.446 14942 14942 F DEBUG : #112 pc 000000000027f2e0 /system/lib64/libart.so (art::interpreter::ArtInterpreterToCompiledCodeBridge(art::Thread*, art::ArtMethod*, art::ShadowFrame*, unsigned short, art::JValue*)+344) 01-04 10:14:40.446 14942 14942 F DEBUG : #113 pc 00000000002792e8 /system/lib64/libart.so (bool art::interpreter::DoCall<false, false>(art::ArtMethod*, art::Thread*, art::ShadowFrame&, art::Instruction const*, unsigned short, art::JValue*)+968) 01-04 10:14:40.446 14942 14942 F DEBUG : #114 pc 0000000000524958 /system/lib64/libart.so (MterpInvokeVirtual+588) 01-04 10:14:40.446 14942 14942 F DEBUG : #115 pc 0000000000547914 /system/lib64/libart.so (ExecuteMterpImpl+14228) 01-04 10:14:40.446 14942 14942 F DEBUG : #116 pc 0000000000c2c0d6 /system/framework/boot-framework.vdex (com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run+22) 01-04 10:14:40.446 14942 14942 F DEBUG : #117 pc 0000000000252fec /system/lib64/libart.so (_ZN3art11interpreterL7ExecuteEPNS_6ThreadERKNS_20CodeItemDataAccessorERNS_11ShadowFrameENS_6JValueEb.llvm.3126947107+488) 01-04 10:14:40.446 14942 14942 F DEBUG : #118 pc 00000000005151ec /system/lib64/libart.so (artQuickToInterpreterBridge+1020) 01-04 10:14:40.446 14942 14942 F DEBUG : #119 pc 000000000055e4fc /system/lib64/libart.so (art_quick_to_interpreter_bridge+92) 01-04 10:14:40.446 14942 14942 F DEBUG : #120 pc 0000000000bf66e0 /system/framework/arm64/boot-framework.oat (offset 0x3d1000) (com.android.internal.os.ZygoteInit.main+3088) 01-04 10:14:40.446 14942 14942 F DEBUG : #121 pc 000000000055564c /system/lib64/libart.so (art_quick_invoke_static_stub+604) 01-04 10:14:40.446 14942 14942 F DEBUG : #122 pc 00000000000cf714 /system/lib64/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+232) 01-04 10:14:40.446 14942 14942 F DEBUG : #123 pc 000000000045ca48 /system/lib64/libart.so (art::(anonymous namespace)::InvokeWithArgArray(art::ScopedObjectAccessAlreadyRunnable const&, art::ArtMethod*, art::(anonymous namespace)::ArgArray*, art::JValue*, char const*)+104) 01-04 10:14:40.446 14942 14942 F DEBUG : #124 pc 000000000045c6a8 /system/lib64/libart.so (art::InvokeWithVarArgs(art::ScopedObjectAccessAlreadyRunnable const&, _jobject*, _jmethodID*, std::__va_list)+424) 01-04 10:14:40.446 14942 14942 F DEBUG : #125 pc 0000000000361b78 /system/lib64/libart.so (art::JNI::CallStaticVoidMethodV(_JNIEnv*, _jclass*, _jmethodID*, std::__va_list)+652) 01-04 10:14:40.446 14942 14942 F DEBUG : #126 pc 00000000000b1da4 /system/lib64/libandroid_runtime.so (_JNIEnv::CallStaticVoidMethod(_jclass*, _jmethodID*, ...)+116) 01-04 10:14:40.446 14942 14942 F DEBUG : #127 pc 00000000000b47c8 /system/lib64/libandroid_runtime.so (android::AndroidRuntime::start(char const*, android::Vector<android::String8> const&, bool)+752) 01-04 10:14:40.446 14942 14942 F DEBUG : #128 pc 000000000000251c /system/bin/app_process64 (main+2000) 01-04 10:14:40.446 14942 14942 F DEBUG : #129 pc 00000000000c861c /system/lib64/libc.so (__libc_init+88)

Hi,

In HellowWorldApp, when I try to load my pre-trained model, the app freeze and when I look at the app data in setting, it keep increasing to 7 GB. It seems like some operations happens during load method that keep increase the app data size.

The same model, I put it in PyTorchDemo, and it's working fine.

What could be the cause of this ?

Thanks

Hi,

I use Android Studio 3.5.2 and encounter below issue.

ERROR: Unable to resolve dependency for ':app@debug/compileClasspath': Failed to transform artifact 'pytorch_android.aar (org.pytorch:pytorch_android:1.4.0-SNAPSHOT:20191111.132026-35)' to match attributes {artifactType=jar}.

As of right now I can't find a way to process tensors efficiently as numpy can. I'm deploying a deeplab model onto an Android app, and the output tensor has the shape of [1x21x400x400]. With numpy i would just do np.argmax(out, axis=1), but on Android, I have to loop through the entire thing which is painfully slow.

With a clone of the repo as of Aug 14, 2020, no modifications, the HelloWorld app crashes at launch trying to read the model.pt asset:

/AndroidRuntime: FATAL EXCEPTION: main
    Process: org.pytorch.helloworld, PID: 6473
    java.lang.RuntimeException: Unable to start activity ComponentInfo{org.pytorch.helloworld/org.pytorch.helloworld.MainActivity}: com.facebook.jni.CppException: version_ <= kMaxSupportedFileFormatVersion INTERNAL ASSERT FAILED at ../caffe2/serialize/inline_container.cc:132, please report a bug to PyTorch. Attempted to read a PyTorch file with version 3, but the maximum supported version for reading is 2. Your PyTorch installation may be too old. (init at ../caffe2/serialize/inline_container.cc:132)
    (no backtrace available)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2913)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:193)
        at android.app.ActivityThread.main(ActivityThread.java:6669)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
     Caused by: com.facebook.jni.CppException: version_ <= kMaxSupportedFileFormatVersion INTERNAL ASSERT FAILED at ../caffe2/serialize/inline_container.cc:132, please report a bug to PyTorch. Attempted to read a PyTorch file with version 3, but the maximum supported version for reading is 2. Your PyTorch installation may be too old. (init at ../caffe2/serialize/inline_container.cc:132)

The crash is consistent even if I recreate the model with the trace_model script using a couple different versions of torch and torchvision:

With torch==1.6.0 torchvision==0.7.0, Run python trace_model.py, clean and launch, app crashes with same error.

With torch==1.4.0 torchvision==0.5.0, Run python trace_model.py, clean and launch, app crashes with same error.

It may be worth noting that I have multiple versions of the Android NDK installed and specify ndkVersion "21.1.6352462"

Thanks for the project.
The example successful run on Android.
However, I want to create my our model for other nlp tasks.
So, can you show me the way to create the nlp model? Or the source of creating model-reddit16-f140225004_2.pt1?