Hello,
I am not sure if this is the right place to ask for a tech support,
please ignore the message if it is not.
My problem is described as follows: I am trying to run one of the
example scripts (I use ubuntu, pycharm with venv python virtual
environment):
|import pycuda.autoinit from pycuda.compiler import SourceModule
import numpy a = numpy.random.randn(4,4) a = a.astype(numpy.float32)
a_gpu = cuda.mem_alloc(a.size * a.dtype.itemsize)
cuda.memcpy_htod(a_gpu, a) mod = SourceModule(""" __global__ void
doublify(float *a) { int idx = threadIdx.x + threadIdx.y*4; a[idx] *=
2; } """) func = mod.get_function("doublify") func(a_gpu,
block=(4,4,1)) a_doubled = numpy.empty_like(a)
cuda.memcpy_dtoh(a_doubled, a_gpu) print ("original array:") print (a)
print ("doubled with kernel:") print (a_doubled)|
And I get the following error:
|/home/art/.pyenv/versions/test380/bin/python
/home/art/PycharmProjects/pycuda/test.py Traceback (most recent call
last): File
"/home/art/.pyenv/versions/test380/lib/python3.8/site-packages/pytools/__init__.py",
line 536, in _deco return func._memoize_dic[args] # pylint:
disable=protected-access AttributeError: 'function' object has no
attribute '_memoize_dic' During handling of the above exception,
another exception occurred: Traceback (most recent call last): File
"/home/art/.pyenv/versions/test380/lib/python3.8/site-packages/pytools/prefork.py",
line 49, in call_capture_output popen = Popen(cmdline, cwd=cwd,
stdin=PIPE, stdout=PIPE, File
"/home/art/.pyenv/versions/3.8.0/lib/python3.8/subprocess.py", line
854, in __init__ self._execute_child(args, executable, preexec_fn,
close_fds, File
"/home/art/.pyenv/versions/3.8.0/lib/python3.8/subprocess.py", line
1702, in _execute_child raise child_exception_type(errno_num, err_msg,
err_filename) FileNotFoundError: [Errno 2] No such file or directory:
'nvcc' During handling of the above exception, another exception
occurred: Traceback (most recent call last): File
"/home/art/PycharmProjects/pycuda/test.py", line 16, in mod =
SourceModule(""" File
"/home/art/.pyenv/versions/test380/lib/python3.8/site-packages/pycuda/compiler.py",
line 290, in __init__ cubin = compile(source, nvcc, options, keep,
no_extern_c, File
"/home/art/.pyenv/versions/test380/lib/python3.8/site-packages/pycuda/compiler.py",
line 254, in compile return compile_plain(source, options, keep, nvcc,
cache_dir, target) File
"/home/art/.pyenv/versions/test380/lib/python3.8/site-packages/pycuda/compiler.py",
line 84, in compile_plain
checksum.update(get_nvcc_version(nvcc).encode("utf-8")) File
"",
line 2, in get_nvcc_version File
"/home/art/.pyenv/versions/test380/lib/python3.8/site-packages/pytools/__init__.py",
line 539, in _deco result = func(*args) File
"/home/art/.pyenv/versions/test380/lib/python3.8/site-packages/pycuda/compiler.py",
line 16, in get_nvcc_version result, stdout, stderr =
call_capture_output(cmdline) File
"/home/art/.pyenv/versions/test380/lib/python3.8/site-packages/pytools/prefork.py",
line 227, in call_capture_output return
forker.call_capture_output(cmdline, cwd, error_on_nonzero) File
"/home/art/.pyenv/versions/test380/lib/python3.8/site-packages/pytools/prefork.py",
line 60, in call_capture_output raise ExecError("error invoking '%s':
%s" pytools.prefork.ExecError: error invoking 'nvcc --version': [Errno
2] No such file or directory: 'nvcc' Process finished with exit code 1|
But if I run it with the 'python test.py' from the terminal itself,
then it executes just fine:
|(test380) art@HP:~/PycharmProjects/pycuda$ python test.py original
array: [[ 0.63286567 -0.5732655 0.0824481 0.17147891] [-0.24867015
-2.4119377 -0.41027954 -0.67181575] [-1.2339077 -1.23354 1.0630324
0.3807849 ] [-1.5976559 -1.5595584 -0.03161036 -0.50650793]] doubled
with kernel: [[ 1.2657313 -1.146531 0.1648962 0.34295782] [-0.4973403
-4.8238754 -0.8205591 -1.3436315 ] [-2.4678154 -2.46708 2.1260648
0.7615698 ] [-3.1953118 -3.1191168 -0.06322072 -1.0130159 ]] |
I wonder if it supposed to work like that or am I missing something? I
have checked the .bashrc file, nvcc --version, gcc --version and other
hints from the manual, everything seems to be correct. Would much
appreciate your help.
Kind Regards,
Artur
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