[CIG-SHORT] ch_p4

[Tabrez Ali]

Leif

That's what I thought too. I'll try to compile pylith from source. Btw 
is it possible to implement ch_p4 in future releases (of x86 linux 
binaries) as it can be used on SMP's as well as on clusters (distributed 
memory) unlike ch_shmem which only works on SMP's/multi core procs?

Btw I dont know if ch_shmem really offers that much of a performance 
boost over ch_p4 on SMP's.

Tabrez


Leif Strand wrote:
> Tabrez,
>
> PyLith should work fine on a cluster -- provided that it is built from 
> source, and is thus configured to use the MPICH installation on your 
> cluster.
>
> The prebuilt binaries, however, only work on a workstation/laptop. The 
> PyLith binary package includes its own copy of MPICH, which is 
> configured to use ch_shmem. If these binaries run at all on a cluster, 
> most likely they will do the wrong thing: i.e., run exclusively on the 
> login node, as opposed to running in parallel on the compute nodes.
>
> --Leif Strand
>
> Tabrez Ali wrote:
>
>> Hello
>>
>> Is it possible to run pylith on clusters (ch_p4 devices) or it only 
>> runs on shared memory machines (ch_shmem)? I was trying to use mpirun 
>> (configured with ch_p4) and it prompts that program needs ch_shmem.
>>
>> Btw everything works fine with mpich which comes bundled with pylith 
>> (on a single/dual proc workstation).
>>
>> Regards
>> Tabrez
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>
>
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