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monitoring mpi solution

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12 years 9 months ago #6392 by Zamir
monitoring mpi solution was created by Zamir
Hi all!

I am trying to run an aster mpi run in caelinux2011 and my bash window shows progress until just before the STAT_NON_LINE operator. From that point on, the bash terminal does not show any more progress but a peek into the system monitor shows that all of my requested processors are working hard.

My question is this: Is this behavior normal? How can I get the terminal show progress in the mpi run?

PS I have some confidence in my comm file, I has ran it to completion using a sequential build of aster.

Thank you!
Zamir
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12 years 9 months ago #6394 by Claus
Replied by Claus on topic Re: monitoring mpi solution
Hmm that does indeed sound strange. Does the computation complete with MPI even though you can't follow the progress?

A strange issue I've had with earlier versions of CA - I don't know it still exists - is that, with a version compiled with GCC, the commands won't be printed till AFTER completion, but with Intel compilers the commands are shown as they are being executed. Strange issue, and as I said, I don't know if the problem still exists.

/C

Code_Aster release : STA11.4 on OpenSUSE 12.3 64 bits - EDF/Intel version
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12 years 8 months ago #6415 by Zamir
Replied by Zamir on topic Re: monitoring mpi solution
Actually, I just had not run a job that was long enough to see the updates in bash. It updates every 10 minutes or so, even if I set the refresh time to 1 minute in astk. Jobs do complete successfully.
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12 years 8 months ago - 12 years 8 months ago #6419 by Zamir
Replied by Zamir on topic Re: monitoring mpi solution
I want to update my earlier post. My mpi solutions take longer than my sequential solutions, and often times, they behave very differently. Can anyone help me troubleshoot this? I am just using the standard build in CAElinux2011. Where should I look for proper settings and such?

Thanks!
Zamir

EDIT: Also, each command in my comm file is displayed several times. i.e. if I call 10 processors, each command is displayed ten times (even in the temp file in the flasheur directory).
Last edit: 12 years 8 months ago by Zamir.
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12 years 8 months ago #6422 by Claus
Replied by Claus on topic Re: monitoring mpi solution
Whether or not MPI will be beneficial to a calculation, depends very much on what is being calculated. Look at the CA forum on MPI posts.

/C

Code_Aster release : STA11.4 on OpenSUSE 12.3 64 bits - EDF/Intel version
Moderators: catux
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