openmpi-5.0.0rc2 does not finalize

[Edson Camargo]

Hey guys!

Nice to see the progress on top of ULFM, it's been a while since I came here. I am working with ULFM with my Masters students in a parallel processing discipline. I used to work with the old versions of ULFM (2013 to 2017), but now I'm having problems with this version of ULFM built into openmpi: I'm using the openmpi-5.0.0rc2 version. I applied the ./configure --with-ft configuration option during installation, but when running the SC20 tutorial examples the applications don't finish. For example: 

mpiexec -np 4 --hostfile my-hostfile --enable-recovery ./02.err_handler

Rank 2/4: bye bye!

Rank 3/4: bye bye!

The same happens on my machine and on the supercomputer SantosDummont (Brazil). Please can you tell me if I missed anything?

Thanks in advance!

Edson

[Aurelien Bouteiller]

Edson,

Thanks for reporting, this is unfortunately a known issue, it is being worked on.

If you look carefully, you should see that the MPI programs actually terminates normally, but mpiexec is what remains stuck.

Best regards,
Aurelien

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[Edson Tavares de Camargo]

Hi Aurelien. Thanks for your reply. Could you please what is the latest ULFM stable version?

Edson

[Aurelien Bouteiller]

This version is free of the mpiexec issue

https://github.com/open-mpi/ompi/tree/b541521c69f23fbece6f62adb51e2207c8039afd

Best
Aurelien

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