Thanks. Do you see L2 cache overflowing effects by putting multiple
MPI processes on the same chip with the recent multi-core processors
(Intel Woodcrest for instance)?
Regards
vipin
On Tue, 10 Apr 2007, Erik Lindahl wrote:
Hi,
On Apr 10, 2007, at 10:15 PM, vipin sachdeva wrote:
This thread on Feb 8 2006 mentions that threads are not yet functional.
http://www.gromacs.org/pipermail/gmx-users/2006-February/019760.html
Is the threads still not functional considering I still get the same error
?
We are only using threads for experimental development of the nonbonded
interaction loop. The multi-level-cache-locality features on modern CPUs
(even NUMA on Opterons) means that you normally get better performance by
partitioning the problem into separate MPI processes, where each process
resides on a separate core.
Cheers,
Erik
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