Hi Gerald, > I can watch the memory pointers of the gpuarrays increase until I get a > launch error... presumably due to lack of memory.
Are you sure that failure is caused by the lack of memory? I think, this would rather result in an error during memory allocation, not during kernel execution. > Can I manually free GPUarray instances? If not, can I somehow manually > remove all PyCUDA stuff from memory? Python deinitialises objects as soon as the reference count for them becomes zero. If you need to do it explicitly, I think just "del gpuarray_obj" will be enough. At least, it worked for me. Best regards, Bogdan On Mon, Apr 26, 2010 at 2:53 AM, gerald wrong <psillymathh...@gmail.com> wrote: > I think I may be running into a memory leak using GPUarray. I have a > function using GPUarrays that is working stable on single calls. If I loop > this function within python from another script like this: > > for i in xrange(m): > do_some_gpuarray_stuff() > > I can watch the memory pointers of the gpuarrays increase until I get a > launch error... presumably due to lack of memory. ie I need gpu mem to free > upon exit of do_some_gpuarray_stuff(), so I can repeat same gpu calculation > many times on new data sets. > > Can I manually free GPUarray instances? If not, can I somehow manually > remove all PyCUDA stuff from memory? like... > > for i in xrange(m): > do_some_gpuarray_stuff() > de_init_pycuda_mem > > I could not find this in the docs, and I understand everything is supposed > to be automagically handled by PyCUDA, but manually freeing will be an easy > confirmation/workaround for my problem. I know this can be done with > pycuda.driver completely manually, but gpu_array is already working nicely > and cleanly.... except for this leak. Any input from the experts would be > much appreciated. > > Thanks much :) > Garrett Wright > _______________________________________________ > PyCUDA mailing list > pyc...@host304.hostmonster.com > http://host304.hostmonster.com/mailman/listinfo/pycuda_tiker.net > > _______________________________________________ PyCUDA mailing list pyc...@host304.hostmonster.com http://host304.hostmonster.com/mailman/listinfo/pycuda_tiker.net
