Re: [swash-users] [PLEASE HELP!] Issues Running SWASH in Parallel with OpenMPI on Ubuntu 24

[Bunnik, T. <t.b...@ma...>]

Hi Leonora,

Could it be that you accidentally build a serial version of swash instead of the mpi version?

Best regards,

Tim


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From: LEONORA ANTONIA PEREIRA ZAPATA (Alumno) <LEO...@us...>
Sent: Tuesday, March 18, 2025 3:02 AM
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Subject: [swash-users] [PLEASE HELP!] Issues Running SWASH in Parallel with OpenMPI on Ubuntu 24

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Hello everyone,



I have been trying to run SWASH in parallel, so I downloaded OpenMPI on Ubuntu version 24.



I ran a simulation with 15 cores, however, I get the impression that it is running the same simulation 15 times, meaning not in parts. In the terminal, the typical percentage that appears when running a simulation shows up 15 times. I also notice that the simulation takes MUCH longer than if I were running it serially.



Has anyone figured out how to resolve this?