Hello all,
I am trying to use pycula to calculate the eigenvalues and eigenvectors of
a matrix . when I calculate the eigen values it works fine :
cat = np.array([[4,3],[3,2]], dtype=np.float64)
cat_dev=cula.cula_gpuarray_like(cat)
lamb=cula.gpu_devdeveigenvalues(cat_dev)
but when I try to get the eigenvectors like :
lamb=cula.gpu_devdeveigenvalues(cat_dev,right_vectors=True)
I get this error:
(Traceback (most recent call last):
File "/home/jadidi/python-workespace/kernel/test.py", line 31, in <module>
print lamb
File
"/usr/local/lib/python2.7/dist-packages/pycuda-2011.2.2-py2.7-linux-x86_64.egg/pycuda/gpuarray.py",
line 261, in __repr__
return repr(self.get())
File
"/usr/local/lib/python2.7/dist-packages/pycuda-2011.2.2-py2.7-linux-x86_64.egg/pycuda/gpuarray.py",
line 238, in get
drv.memcpy_dtoh(ary, self.gpudata)
pycuda._driver.LaunchError: cuMemcpyDtoH failed: launch failed
PyCUDA WARNING: a clean-up operation failed (dead context maybe?)
cuMemFree failed: launch failed
what would be the reason ?
--
Mohsen Jadidi
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