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On 13/01/12 11:47, Christopher Yeoh wrote:
> Here's some benchmarking results I did a while back on a single 64-way
> (SMT) POWER6 box.
Very nice numbers! I'd love to test it out here on some real codes,
like Gromacs or NAMD (NAMD I know does a lot
Hi Chris,
On Fri, 13 Jan 2012 09:54:20 +1100
Christopher Samuel wrote:
>
> On 12/01/12 20:34, Christopher Yeoh wrote:
>
> > Cross Memory Attach (CMA) is a pair of new syscalls
> > (process_vm_readv and process_vm_writev) which allow for fast
> > intranode communication. It has added to the Linu
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Hi Chris,
On 12/01/12 20:34, Christopher Yeoh wrote:
> Cross Memory Attach (CMA) is a pair of new syscalls (process_vm_readv
> and process_vm_writev) which allow for fast intranode
> communication. It has added to the Linux 3.2 kernel.
Do you have a
The problem is correctly identified and solved. I already pushed the patch in
the trunk. I will create the CMR for both 1.5 and 1.4.
Kudos to the Fujitsu team, that was a tricky one to find. Thanks for you
contributions!
george.
On Jan 12, 2012, at 10:39 , Barrett, Brian W wrote:
> George -
George -
This looks right to me, but the patches are in the datatype engine, so can
you weigh in?
Thanks,
Brian
On 1/11/12 10:04 PM, "Kawashima" wrote:
>Hi Open MPI developers,
>
>We, Fujitsu, noticed that one-sided communication with some sort of
>derived datatype fails on sparc64 machines.
Hi Brad,
WHAT: Adds Cross Memory Attach support to the sm btl
WHY: For faster intranode communication
WHERE: ompi/mca/btl/sm/
WHEN: Open MPI trunk
TIMEOUT: 13/2/2012
Cross Memory Attach (CMA) is a pair of new syscalls (process_vm_readv
and process_vm_writev) which allow for fast intranode
co
Hi Open MPI developers,
We, Fujitsu, noticed that one-sided communication with some sort of
derived datatype fails on sparc64 machines.
In one-sided communication of Open MPI, the structure of datatype of
target buffer is:
(1) encoded in origin process, and
(2) transfered to target process, a
