LAM: qstat and qsta -a

When compiled with TM support, LAM uses "native"
Torque support for  
launching its MPI jobs.  As such Torque is therefore aware
of all the  
MPI processes on all nodes, and can account for the CPU time
used on  
all nodes.

MPI's that do not support Torque's "native"
launching support will use  
rsh/ssh, and therefore Torque is not aware of all the MPI
processes  
launched on non-mother-superior nodes.

As such, LAM with TM support is reporting a more correct
total CPU  
usage number.


On Nov 5, 2007, at 1:50 AM, SCIPIONI Roberto wrote:

> Dear all,
>
> I compiled LAM MPI with torque using the option
>
> --with-boot-tm
>
> but now the qstat time seems to be multipled compared
to the
>
> qstat  -a one
>
> now qstat seems to give the total CPU time  N CPU
multiplied by the  
> effective time, why ?
>
> Any way out  ?
>
>
> Roberto S.
>
> ICYS, CLUSTER
> ICYS, NIMS
> Japan
> I  can verify this behavior,  but it doesn't happen all
the time.
>
> Brock Palen
> Center for Advanced Computing
> brockpumich.edu
> (734)936-1985
>
>
> On Nov 2, 2007, at 1:07 PM, Kamil Kisiel wrote:
>
>> Hello,
>>
>> Users of our cluster are experiencing some terminal
issues when  
>> using qsub -I. Console applications such as Vim do
not resize when  
>> the user resizes their terminal. Long commands in
the shell wrap  
>> back to the start of the line and overwrite
characters instead of  
>> continuing on to the next line.
>>
>> If the users ssh to the node (not using qsub -I),
everything works  
>> as expected.
>>
>> Has anyone else seen this issue?
>>
>> ____________
>> Kamil Kisiel
>> HPC Technician, Zymeworks Inc.
>> 201-1401 West Broadway,
>> Vancouver, BC, V6H 1H6, Canada
>> Tel: (604) 678-1388 ext. 35
>> Fax: (604) 737-7077
>> www.zymeworks.com
>>
>>
>>
>>
>>
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>
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-- 
Jeff Squyres
Cisco Systems

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