open TELEMAC-MASCARET The mathematically superior suite of solvers

I am running a simulation in parallel mode. A listing is printed to the terminal for each printout period. The problem is that each processor prints a separate listing, which results in too much information. Is this normal? I would like only one summary listing printed to the terminal.

Regards,
Simon

Hello,

It is not normal, only processor 0 "speaks" in the listing. However PRINT* commands will all write in the listing, and only the command WRITE(LU,*) will have a correct effect, because we redirect channel LU of all processors but one to log files in the working directory.
There should be no PRINT* commands in Telemac libraries, did you add some in your Fortran file ?

REgards,

JMH

I have not modified any Fortran libraries or anything else. I compiled and am running the configuration 'ubugfopenmpi'.

What strikes me odd is that listings for each print period are not in sync. For example, the listing print order is for iteration 500, 500, 500, then 400!, 500, 600, etc.

I just discovered that my model scales horribly. Serial runs fastest, and each processor after significantly slows the simulation. I have never seen scaling this bad using a CFD code, so maybe this is a diagnostic for another issue... Any thoughts?

Thanks,
Simon