The relevant parts in the codebase are here: Setting the env to check via cmake: https://github.com/STEllAR-GROUP/hpx/blob/master/plugins/parcelport/mpi/CMakeLists.txt#L42 Detecting if we run inside a MPI environment: https://github.com/STEllAR-GROUP/hpx/blob/master/plugins/parcelport/mpi/mpi_environment.cpp#L30-L52
On Fri, Jul 5, 2019 at 10:41 AM Thomas Heller <[email protected]> wrote: > The initialization of the MPI parcelport is done by checking environment > variables set by the most common MPI implementations. Which MPI > implementation do you use? Can you attach the output of `mpirun env` maybe? > > Andreas Schäfer <[email protected]> schrieb am Fr., 5. Juli 2019 08:58: > >> >> On 01:11 Fri 05 Jul , Marcin Copik wrote: >> > I've seen such issue in pure MPI applications. The usual reason is >> > using an mpirun/mpiexec provided by an implementation different than >> > the one used for linking. Checking for a mismatch there might help. >> >> There is only one MPI version installed on that machine. Also, running >> a simple MPI hello world works as expected. My assumption is that the >> MPI parcelport is not initialized correctly. Which part of the code >> loads/initialized all the parcelports? >> >> Thanks >> -Andi >> >> >> -- >> ========================================================== >> Andreas Schäfer >> >> HPC and Supercomputing for Computer Simulations >> LibGeoDecomp project lead, http://www.libgeodecomp.org >> >> PGP/GPG key via keyserver >> >> I'm an SRE @ Google, this is a private account though. >> All mails are my own and not Google's. >> ========================================================== >> >> (\___/) >> (+'.'+) >> (")_(") >> This is Bunny. Copy and paste Bunny into your >> signature to help him gain world domination! >> _______________________________________________ >> hpx-users mailing list >> [email protected] >> https://mail.cct.lsu.edu/mailman/listinfo/hpx-users >> >
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