Hi ,
Just installed pycuda and tried to run matrixmul code from
http://wiki.tiker.net/PyCuda/Examples/MatrixmulSimple here . Got error in
the phase where . This is what i did:
>>> #!/usr/bin/env python
... #-*- coding: utf-8 -*-
... import numpy as np
>>> from pycuda import driver, compiler, gpuarray, tools
>>> # -- initialize the device
>>> import pycuda.autoinit
>>> kernel_code_template = """
... __global__ void MatrixMulKernel (float *a, float *b, float *c)
... {
... int tx = threadIdx.x;
... int ty = threadIdx.y;
... float Pvalue=0;
... for (int k=0;k<(MATRIX_SIZE)s;++k){
... float Aelement = a[ty * %(MATRIX_SIZE)s + k];
... float Belement = b[k * %(MATRIX_SIZE)s + tx];
... Pvalue += Aelement + Belement;
... }
... c[ty * %(MATRIX_SIZE)s + tx] = Pvalue;
... }
... """
>>> MATRIX_SIZE =2
>>> a_cpu = np.random.randn(MATRIX_SIZE,MATRIX_SIZE).astype(np.float32)
>>> b_cpu = np.random.randn(MATRIX_SIZE, MATRIX_SIZE).astype(np.float32)
>>> c_cpu = np.dot(a_cpu, b_cpu)
>>> a_gpu = gpuarray.to_gpu(a_cpu)
>>> b_gpu = gpuarray.to_gpu(b_cpu)
>>> c_gpu = gpuarray.empty((MATRIX_SIZE,MATRIX_SIZE),np.float32)
>>> kernel_code = kernel_code_template %{
... 'MATRIX_SIZE':MATRIX_SIZE
... }
>>> mod = compiler.SourceModule(kernel_code)
/Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File
"/usr/local/lib/python2.7/dist-packages/pycuda-2011.2.2-py2.7-linux-x86_64.egg/pycuda/compiler.py",
line 283, in __init__
arch, code, cache_dir, include_dirs)
File
"/usr/local/lib/python2.7/dist-packages/pycuda-2011.2.2-py2.7-linux-x86_64.egg/pycuda/compiler.py",
line 273, in compile
return compile_plain(source, options, keep, nvcc, cache_dir)
File
"/usr/local/lib/python2.7/dist-packages/pycuda-2011.2.2-py2.7-linux-x86_64.egg/pycuda/compiler.py",
line 129, in compile_plain
cmdline, stdout=stdout, stderr=stderr)
pycuda.driver.CompileError: nvcc compilation of /tmp/tmpGuRUsm/kernel.cu
failed
[command: nvcc --cubin -arch sm_11
-I/usr/local/lib/python2.7/dist-packages/pycuda-2011.2.2-py2.7-linux-x86_64.egg/pycuda/../include/pycuda
kernel.cu]
[stderr:
kernel.cu(8): error: identifier "MATRIX_SIZE" is undefined
kernel.cu(8): error: expected a ";"
2 errors detected in the compilation of
"/tmp/tmpxft_00007bbf_00000000-4_kernel.cpp4.ii".
]/
If anyone can figure error, it will be appreciated.
--
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