[gmx-users] --enable-threads fails.

[vipin sachdeva]

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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