Dear all,
I am new to pyCuda, and I would appreciate your help in advance.
I were able to write a few short pyCuda code but run into a roadblock with one
at my hand.
The code snippet is as follows:
tumorLnFScore = np.zeros((nTumorMutGenes,
nTumorDEGs)).astype(np.float32)
gpu_tumorLnFScore = cuda.mem_alloc(tumorLnFScore.nbytes)
## bunch of other initialization of GPU variables for func call
func = mod.get_function("PanCanTDIMarginalGPU")
func(gpu_mutcnaMatrix, gpu_degMatrix, gpu_nTumors,
gpu_tumormutGeneIndx, gpu_nTumorGTs,\
gpu_degGeneIndx, gpu_nTumorDEGs, gpu_tumorLnFScore,
gpu_cancerTypeColIndx,\
gpu_ge1stDriverIndices, gpu_ge2ndDriverIndices, block=(blocksize,
1, 1), grid=(nBlockInGrid, 1))
cuda.memcpy_dtoh(tumorLnFScore, gpu_tumorLnFScore)
However, pyCuda returned the following error:
File "/home/kevin/GroupDropbox/TDI/PanCanTDIGPU.py", line 421, in
calcPanCanTDIGPU
cuda.memcpy_dtoh(tumorLnFScore, gpu_tumorLnFScore)
pycuda._driver.LogicError: cuMemcpyDtoH failed: invalid/unknown error code
PyCUDA WARNING: a clean-up operation failed (dead context maybe?)
cuMemFree failed: invalid/unknown error code
My question is:
What would be most common cause of the above error, on pycuda side or in Cuda
C/C++ side? Thanks in advance for helping.
Best,
Xinghua
--
Xinghua Lu,
_______________________________________________
PyCUDA mailing list
[email protected]
http://lists.tiker.net/listinfo/pycuda
