Hi,
Thanks that fixed the first compile step however the program then
compiles the kernel a second time without the options I specified (I've
added a print statement to show the options being passed onto nvcc):
%> python demo.py
*** compiler options is ['-ccbin', '/usr/bin/nvidia-gnu', '-arch',
'sm_12',
'-I/usr/local/lib/python2.7/dist-packages/pycuda-0.94.2-py2.7-linux-x86_64.egg/pycuda/../include/pycuda']
original array:
[[-0.67095202 0.06165788 -0.12977113 -2.18319201]
[ 0.08371061 -1.0201813 -0.10623035 -1.69607186]
[ 0.34388322 1.23563218 0.19672823 -0.60138172]
[ 1.73257256 0.36532807 0.8768267 -0.65081763]]
doubled with kernel:
[[-1.34190404 0.12331576 -0.25954226 -4.36638403]
[ 0.16742122 -2.0403626 -0.2124607 -3.39214373]
[ 0.68776643 2.47126436 0.39345646 -1.20276344]
[ 3.46514511 0.73065615 1.75365341 -1.30163527]]
doubled with InOut:
[[-1.34190404 0.12331576 -0.25954226 -4.36638403]
[ 0.16742122 -2.0403626 -0.2124607 -3.39214373]
[ 0.68776643 2.47126436 0.39345646 -1.20276344]
[ 3.46514511 0.73065615 1.75365341 -1.30163527]]
*** compiler options is ['-arch', 'sm_12',
'-I/usr/local/lib/python2.7/dist-packages/pycuda-0.94.2-py2.7-linux-x86_64.egg/pycuda/../include/pycuda']
Traceback (most recent call last):
File "demo.py", line 44, in <module>
a_doubled = (2*a_gpu).get()
File
"/usr/local/lib/python2.7/dist-packages/pycuda-0.94.2-py2.7-linux-x86_64.egg/pycuda/gpuarray.py",
line 285, in __rmul__
return self._axpbz(scalar, 0, result)
File
"/usr/local/lib/python2.7/dist-packages/pycuda-0.94.2-py2.7-linux-x86_64.egg/pycuda/gpuarray.py",
line 160, in _axpbz
func = elementwise.get_axpbz_kernel(self.dtype)
File "<string>", line 2, in get_axpbz_kernel
File
"/usr/local/lib/python2.7/dist-packages/pycuda-0.94.2-py2.7-linux-x86_64.egg/pycuda/tools.py",
line 485, in context_dependent_memoize
result = func(*args)
File
"/usr/local/lib/python2.7/dist-packages/pycuda-0.94.2-py2.7-linux-x86_64.egg/pycuda/elementwise.py",
line 323, in get_axpbz_kernel
"axpb")
File
"/usr/local/lib/python2.7/dist-packages/pycuda-0.94.2-py2.7-linux-x86_64.egg/pycuda/elementwise.py",
line 99, in get_elwise_kernel
arguments, operation, name, keep, options, **kwargs)
File
"/usr/local/lib/python2.7/dist-packages/pycuda-0.94.2-py2.7-linux-x86_64.egg/pycuda/elementwise.py",
line 85, in get_elwise_kernel_and_types
keep, options, **kwargs)
File
"/usr/local/lib/python2.7/dist-packages/pycuda-0.94.2-py2.7-linux-x86_64.egg/pycuda/elementwise.py",
line 74, in get_elwise_module
options=options, keep=keep)
File
"/usr/local/lib/python2.7/dist-packages/pycuda-0.94.2-py2.7-linux-x86_64.egg/pycuda/compiler.py",
line 239, in __init__
arch, code, cache_dir, include_dirs)
File
"/usr/local/lib/python2.7/dist-packages/pycuda-0.94.2-py2.7-linux-x86_64.egg/pycuda/compiler.py",
line 229, in compile
return compile_plain(source, options, keep, nvcc, cache_dir)
File
"/usr/local/lib/python2.7/dist-packages/pycuda-0.94.2-py2.7-linux-x86_64.egg/pycuda/compiler.py",
line 108, in compile_plain
cmdline, stdout=stdout, stderr=stderr)
pycuda.driver.CompileError: nvcc compilation of /tmp/tmpoQTLvI/kernel.cu
failed
[command: nvcc --cubin -arch sm_12
-I/usr/local/lib/python2.7/dist-packages/pycuda-0.94.2-py2.7-linux-x86_64.egg/pycuda/../include/pycuda
kernel.cu]
[stderr:
In file included
from /usr/local/cuda/bin/../include/cuda_runtime.h:59:0,
from <command-line>:0:
/usr/local/cuda/bin/../include/host_config.h:82:2: error: #error --
unsupported GNU version! gcc 4.5 and up are not supported!
I'm I reading this right? Is the kernel being compiled twice?
Thanks,
- Scott
On Mon, 2011-06-20 at 17:36 -0400, Andreas Kloeckner wrote:
> On Mon, 20 Jun 2011 14:13:21 -0700, Scott Biersdorff <[email protected]>
> wrote:
> > Hi,
> >
> > I would like to report a possible bug with pycuda. To show the issue
> > I've modified demo.py adding by passing a option to the nvcc compiler:
> >
> > mod = SourceModule("""
> > __global__ void doublify(float *a)
> > {
> > int idx = threadIdx.x + threadIdx.y*4;
> > a[idx] *= 2;
> > }
> > """, options=['-ccbin /usr/bin'])
>
> Pass this as options=['-ccbin', '/usr/bin'].
>
> Andreas
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