Sergei, thanks for confirming you are now able to use Open MPI
fwiw, orted is remotely started by the selected plm component. it can be ssh if you run without a batch manager, the tm interface if PBS/torque, srun if slurm, etc ... that should explain why exporting PATH and LD_LIBRARY_PATH is not enough in your environment, not to mention your .bashrc or equivalent might reset/unset Cheers, Gilles ----- Original Message ----- Hi Gilles! this looks like a very different issue, orted cannot be remotely started. ... a better option (as long as you do not plan to relocate Open MPI install dir) is to configure with --enable-mpirun-prefix-by-default Yes, that's was a problem with orted. I checked PATH and LD_LIBRARY_PATH variables and both are specified, but it was not enough! So I added --enable-mpirun-prefix-by-default to configure and even when --prefix isn't specified the recompiled version woks properly. When Ethernet transfer is used, all works both with and without -- enable-mpirun-prefix-by-default. Thank you! Best regards, Sergei.
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