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Date: Tue, 18 Dec 2007 08:55:35 -0800
From: Dunyou Wang <dunyou.wang@pnl.gov>
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Subject: Re: [NWCHEM] how to avoid the usage of shared memory in SMP machine?
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Hi Dong Hyun,

Try to use more processors for your calculation would solve your problem. If
this still leads to  that shmmax problem, then you have to ask your admin to
increase the shared memory.

Best
Dunyou

??? wrote:
> Dear users,
> 
> I have compiled NWChem with xlf, xlc in IBM p690.
> The machine has two CPUs per node and the kernel is compiled supporting SMP.
> When I calculate on small systems, there is no problem. But, for large
> systems, I meet the too small SHMMAX value error. I know if I change the
> value to the larger value, there would be no problem. But, I am just a
> user, and the administrator said he will not change the value because the
> machine is for public and so the change may influence other softwares.
> 
> I would like to use the machine. Then what would I do?
> Please let me know how to do calculations without the use of shared memory
> in the SMP machine.
> 
> Thank you in advance.
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Dong Hyun Jung, Ph. D
> Chief Scientist
> 
> Insilicotech Co. Ltd.
> A-1101, Kolontripolis, 210, Geumgok-Dong, Seongnam,
> Gyeonggi-Do, 463-805, Korea
> Tel. +82-31-728-0443 Fax. +82-31-728-0444
> dhjung@insilicotech.co.kr
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>