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Hi Xianbei,
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<div>You need to be certain to use the full script, but change the mpiexec command</div>
<div>to reflect what is on your system.</div>
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<div>The script sets up some default files that nek5000 will be looking for when</div>
<div>it starts (specifically, SESSION.NAME)</div>
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<div>Paul</div>
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<div id="divRpF912976" style="direction: ltr;"><font face="Tahoma" size="2" color="#000000"><b>From:</b> nek5000-users-bounces@lists.mcs.anl.gov [nek5000-users-bounces@lists.mcs.anl.gov] on behalf of nek5000-users@lists.mcs.anl.gov [nek5000-users@lists.mcs.anl.gov]<br>
<b>Sent:</b> Wednesday, June 04, 2014 9:23 PM<br>
<b>To:</b> Nek5000<br>
<b>Subject:</b> Re: [Nek5000-users] How to run Nek5000 in cluster based on mpich?<br>
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<div>Hi, Paul:<br>
I read the nekbmpi file and find this:<br>
mpiexec -np $2 ./nek5000 > $1.log.$2 &<br>
so the nek5000 is executed by mpi. In mpich, the common way to run a executable program can be run as :<br>
mpiexec -n XX ./nek5000<br>
</div>
<div> However, when I type this:<br>
mpiexec -n 32 ./nek5000 > turbChannel.log &<br>
error returns like:<br>
Fortran runtime error: File './NEK.rea' does not exist<br>
Best reguards<br>
Xianbei<br>
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At 2014-06-04 11:20:52, nek5000-users@lists.mcs.anl.gov wrote:<br>
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Hi Xianbei,
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<div>Have a look at the nekbmpi script and modify to match the job submission</div>
<div>procedure on your cluster.</div>
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<div>Paul</div>
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<div id="divRpF636972" style="direction:ltr"><font color="#000000" face="Tahoma" size="2"><b>From:</b>
<a href="mailto:nek5000-users-bounces@lists.mcs.anl.gov" target="_blank">nek5000-users-bounces@lists.mcs.anl.gov</a> [<a href="mailto:nek5000-users-bounces@lists.mcs.anl.gov" target="_blank">nek5000-users-bounces@lists.mcs.anl.gov</a>] on behalf of
<a href="mailto:nek5000-users@lists.mcs.anl.gov" target="_blank">nek5000-users@lists.mcs.anl.gov</a> [<a href="mailto:nek5000-users@lists.mcs.anl.gov" target="_blank">nek5000-users@lists.mcs.anl.gov</a>]<br>
<b>Sent:</b> Wednesday, June 04, 2014 9:34 AM<br>
<b>To:</b> Nek5000<br>
<b>Subject:</b> [Nek5000-users] How to run Nek5000 in cluster based on mpich?<br>
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<div>Hi,all:<br>
I have just built a small cluster of computers, based on mpich.I have tested the capability of this cluster, each node can be called freely. Now I want to do my simulation in it, however, I don't know how to run Nek. As known, on only 1 computer, one can
do like this:<br>
nekmpi XXX X <br>
or<br>
nekbmpi XXX X<br>
while this is not the case in the cluster! I believe most of you have tried this, I'll appreciate if anyone can give me some advice.<br>
Best regards<br>
Xianbei <br>
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