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I'm confused about running this. You say "To run n-body problem simulation use 'nbody-simulation' programm.", but there is no file named nbody-simulation. The closest is nbody_solver; is that what you meant? Can you give us an example of how to use it?

Hello, I am trying to build and the run the test on my end. I ran the commands in nbody_gpu.ipynb. When I ran the main function I got error

build-release/test/main/nbody-simulation --engine=opencl --solver=rkdp --max_time=300 --min_step=0.001 --check_step=5 --stars_count=1024 --verbose=1 --output=alone_galaxy

Can't create engine QMap(("check_step", QVariant(QString, "5"))("engine", QVariant(QString, "opencl"))("max_time", QVariant(QString, "300"))("min_step", QVariant(QString, "0.001"))("output", QVariant(QString, "alone_galaxy"))("solver", QVariant(QString, "rkdp"))("stars_count", QVariant(QString, "1024"))("verbose", QVariant(QString, "1")))

What could be the cause of this issue?
Also, I am not sure if it is relevant, but in the previous section, I got follow results:

#Runtest
Invalid tree_layout. Allowed values are 'tree', 'heap' or 'heap_stackless'
Invalid traverse_type. Allowed values are 'cycle' or 'nested_tree'
Engine OK!
Solver OK!
Stream OK!

Thank you for the help.