Sibernetic crashes on MacBook Pro with OpenCL 1.2

[tarelli]

I compiled successfully Sibernetic but as soon as I launch it, after briefly showing the worm, it crashes with the following error:

Matteos-MacBook-Pro:Smoothed-Particle-Hydrodynamics matteocantarelli$ ./build/Smoothed-Particle-Hydrodynamics
Sibernetic: no arguments, run method executing
[debug] pName = "main_sim"
[debug] PyPath = "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip:/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/:/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin:/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac:/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages:/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/../../Extras/lib/python:/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk:/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old:/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload"
ImportError: No module named main_sim
Module not loaded, have you set PYTHONPATH?
Pyramidal simulation class not callable!
 CL_PLATFORM_VERSION [0]:   OpenCL 1.2 (Apr 25 2013 18:32:06)
CL_CONTEXT_PLATFORM [0]: CL_DEVICE_NAME [0]:    Intel(R) Core(TM) i7-3720QM CPU @ 2.60GHz
CL_CONTEXT_PLATFORM [0]: CL_DEVICE_MAX_WORK_GROUP_SIZE [0]:     1024
CL_CONTEXT_PLATFORM [0]: CL_DEVICE_MAX_COMPUTE_UNITS [0]:   8
CL_CONTEXT_PLATFORM [0]: CL_DEVICE_GLOBAL_MEM_SIZE [0]:     0
CL_CONTEXT_PLATFORM [0]: CL_DEVICE_GLOBAL_MEM_CACHE_SIZE [0]:   64
CL_CONTEXT_PLATFORM [0]: CL_DEVICE_LOCAL_MEM_SIZE [0]:  32768
graphics:          64.352 ms
====================================
graphics:          85.479 ms
====================================

[[ Step 0 ]]
_runClearBuffers:      23.963 ms
_runHashParticles:      1.046 ms
_runSort:          16.459 ms
_runSortPostPass:       3.083 ms
_runIndexx:             4.007 ms
_runIndexPostPass:      0.899 ms
_runFindNeighbors:    110.642 ms
_runPCISPH:           153.773 ms    3 iteration(s)
_readBuffer:           10.918 ms
------------------------------------
_Total_step_time:     324.792 ms
------------------------------------
!!!checkpoint001!!!
!!!checkpoint002!!!
Segmentation fault: 11

[vellamike]

Matteo - try running it a few times, I recall there was some issue where
this bug happens sometimes but not others (probably a race condition).

[tarelli]

10 runs out of 10 crashed after half a second.

[msasinski]

@tarelli
1.Why are you running it from the ./build folder not ./Release?
2. you python path is not set correctly as the program does not see main_sim.py

[vellamike]

Well-spotted Mariusz!

On 27 February 2014 12:58, Mariusz Sasinski notifications@github.comwrote:

@tarelli https://github.com/tarelli
1.Why are you running it from the ./build folder not ./Release?
2. you python path is not set correctly as the program does not see
main_sim.py

Reply to this email directly or view it on GitHubhttps://github.com//issues/21#issuecomment-36238989
.

[tarelli]

@msasinski thanks! Still running from build as that's what's in the README but setting PYTHONPATH fixed it.

[tarelli]

This is performance on my system btw:

[[ Step 298 ]]
_runClearBuffers:       6.241 ms
_runHashParticles:      1.057 ms
_runSort:          13.834 ms
_runSortPostPass:       1.939 ms
_runIndexx:             3.886 ms
_runIndexPostPass:      0.342 ms
_runFindNeighbors:    105.404 ms
_runPCISPH:           132.235 ms    3 iteration(s)
_readBuffer:            9.293 ms
------------------------------------
_Total_step_time:     274.230 ms
------------------------------------

@vellamike How do I switch to use GPU?

[msasinski]

@tarelli you may want to remove the serial number and the anonymous uuid from the posts above.

[tarelli]

@msasinski :)

[msasinski]

@tarelli src/owOpenCLSolver.cpp line 127 should do it but I don't think this code is GPU ready

[tarelli]

@msasinski yep, it doesn't work, logged this #22

[Neurophile]

./build is the correct location on OSX.