Just installed ubuntu 26.04 and openmpi. I tried using mpirun --version and got the following message
mpirun --version
Sorry! You were supposed to get help about:
version
But I couldn’t open the help file:
/usr/lib/x86_64-linux-gnu/pmix2/share/pmix/help-schizo-ompi.txt: No such file or directory
/usr/lib/x86_64-linux-gnu/prrte3/share/prte/help-schizo-ompi.txt: No such file or directory.
Sorry!
However mpirun itself seems to work perfectly for a sample use of
mpirun -n 2 hostname
Can anybody tell me if this issue could be serious at some point? I work in scientific computing, specifically CFD. I test out some open source software at times. Does anyone with experience think the inability to check version could be a problem down the line? Is the cmake likely to check the mpi version before compiling the code, for example? Any help would be appreciated. Thank you
Strange, it is indeed the same root cause but that specific issue above shows as closed back in 2022 so what you’re hitting on 26.04 is likely a regression or a packaging issue on Ubuntu.
Probably worth filing a bug report against the Ubuntu openmpi package on Launchpad if nobody’s reported it yet for 26.04.
In th meantime, try:
ompi_info | head
mpicc –showme:version
those will give you the actual version info you need and are also what build scripts usually call. If both of those return cleanly, you’re good to go.
Yeah, that looks similar to what I am facing right now. Guess it’ll have to be fixed again.
mpicc -showme:version worked
mpicc -showme:version
mpicc: Open MPI 5.0.10 (Language: C)
However, ompi showed another issue
ompi_info | head
ompi_info: /lib/x86_64-linux-gnu/libxml2.so.2: no version information available
libxml2 has been deprecated and its replaced by libxml2-16. So, there is an issue here as well. I will check to see if any bug reports have been posted already. Thank you again for the replies
