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uce aws cli to start up the instance
prespecifies ami, ports, etc...
and then automatically launches a launching script
Organizing the notebooks
The cells that have to do with the HW and testing the HW should have the slide directive "skip".
Also, make the title above these sets of sequential cells a small heading (use #### in front of the heading). This way I can easily collapse these cells when I am working on other cells, using the TOC extension. (see my email).
Make assertions/exceptions in tests
Make assertions/exceptions in tests
Ensure partial credit for single exercise:
either have multiple cells or partial credit in one cell
use unix init to start process
once an ami is launched the system will use a file called /etc/init/rc
Homework for week 1
There are two notebooks in the directory 0.MemoryLatency:
01_measuring performance: you don't need to do anything for this one
0_2 SimpleCount which compares the performance of simple counting and counting after sorting. Please use the same homework as we have for the wordcount using spark.
Separate interface for nbgrader vs. spark cluster
checking on the versions of modules
A pretty common problem is that the student is using a module that is too old.
To combat that I added the file 2.PCA/lib/import_modules.py that takes as input a list of modules and the minimal version, imports the modules, checks their version, and compares it to the given.
I recommend that we use that, instead of simple 'import' at the header of our notebooks.
To make the code easily accessible I suggest we have a /lib directory at the level of the notebook directories, in addition to a /lib for each subdirectory.
Downloading files.
We should have no large files in the github data directory. Instead the students will download the files from the web using urllib. See how I did it in the two wordcount notebooks.
Clean up function for nbgrader
time out nbgrader
surround the grading process with os.fork .
Do one student at a time
set a time limit to run grading task
make sure time limit is longer than nbgrader time out
store submissions in a way that can be moved from instance to instance
we use s3
cli will be the tool to copy from instance to s3
create software installation script
add tests for first week notebooks
1: latency graphs
2: word counts with and without sorting
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