22 Apr
2010
22 Apr
'10
8:25 p.m.
On Donnerstag 22 April 2010, Michael Rule wrote:
NV Tesla T10,
I assume its something I am doing wrong...
If you're using NV hardware, it helps to know the CUDA literature. You
must supply a local_size to partition your work into NV's thread
blocks. If you don't you're only submitting one thread block, which has
hardware size limits.
Andreas
PS: Please keep replies on the list. Thanks.
22 Apr
22 Apr
8:37 p.m.
New subject: why do calls for large number of threads fail ?
thank you, that solved all my problems ! ( I mean.... that one
problem, which was pervasive in my program )
On Thu, Apr 22, 2010 at 4:25 PM, Andreas Klöckner
<lists(a)informa.tiker.net> wrote:
On Donnerstag 22 April 2010, Michael Rule wrote:
NV Tesla T10,
I assume its something I am doing wrong...
If you're using NV hardware, it helps to know the CUDA literature. You
must supply a local_size to partition your work into NV's thread
blocks. If you don't you're only submitting one thread block, which has
hardware size limits.
Andreas
PS: Please keep replies on the list. Thanks.
10 p.m.
New subject: why do calls for large number of threads fail ?
The hardware-independent way to solve this is to
call clGetKernelWorkGroupInfo() with an argument
of CL_KERNEL_WORK_GROUP_SIZE to get the maximum number of work-items that
you can enqueue at once.
See also CL_KERNEL_LOCAL_MEM_SIZE to find out how much local memory will be
available for that kernel.
Andreas, I assume that this is also exposed through PyOpenCL somehow :)
Cheers,
David
On Thu, Apr 22, 2010 at 4:37 PM, Michael Rule <mrule7404(a)gmail.com> wrote:
thank you, that solved all my problems ! ( I mean....
that one
problem, which was pervasive in my program )
On Thu, Apr 22, 2010 at 4:25 PM, Andreas Klöckner
<lists(a)informa.tiker.net> wrote:
On Donnerstag 22 April 2010, Michael Rule wrote:
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NV Tesla T10,
I assume its something I am doing wrong...
If you're using NV hardware, it helps to know the CUDA literature. You
must supply a local_size to partition your work into NV's thread
blocks. If you don't you're only submitting one thread block, which has
hardware size limits.
Andreas
PS: Please keep replies on the list. Thanks.
10:13 p.m.
New subject: why do calls for large number of threads fail ?
On Donnerstag 22 April 2010, David Garcia wrote:
The hardware-independent way to solve this is to
call clGetKernelWorkGroupInfo() with an argument
of CL_KERNEL_WORK_GROUP_SIZE to get the maximum number of work-items that
you can enqueue at once.
See also CL_KERNEL_LOCAL_MEM_SIZE to find out how much local memory will be
available for that kernel.
Andreas, I assume that this is also exposed through PyOpenCL somehow :)
http://documen.tician.de/pyopencl/reference.html#pyopencl.Kernel.get_work_g…
Andreas
10:25 p.m.
New subject: why do calls for large number of threads fail ?
Thanks! Is it missing CL_KERNEL_LOCAL_MEM_SIZE?
David
On Thu, Apr 22, 2010 at 6:13 PM, Andreas Klöckner
<lists(a)informa.tiker.net>wrote;wrote:
On Donnerstag 22 April 2010, David Garcia wrote:
The hardware-independent way to solve this is to
call clGetKernelWorkGroupInfo() with an argument
of CL_KERNEL_WORK_GROUP_SIZE to get the maximum number of work-items that
you can enqueue at once.
See also CL_KERNEL_LOCAL_MEM_SIZE to find out how much local memory will
be
available for that kernel.
Andreas, I assume that this is also exposed through PyOpenCL somehow :)
http://documen.tician.de/pyopencl/reference.html#pyopencl.Kernel.get_work_g…
Andreas
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PyOpenCL mailing list
PyOpenCL(a)host304.hostmonster.com
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5 comments
3 participants
participants (3)
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Andreas Klöckner -
David Garcia -
Michael Rule