Ø You need to also set the MPI::ERRORS_THROW_EXCEPTIONS error handler in your MPI application.
Thanks Jeff. I double-checked, and yes, I’m calling MPI_Comm_set_errhandler(com , MPI::ERRORS_THROW_EXCEPTIONS) for every intra- and inter-communicator in the parent and child processes. Could it be something else? Kurt From: Jeff Squyres (jsquyres) <jsquy...@cisco.com> Subject: [EXTERNAL] Re: [OMPI users] OpenMpi not throwing C++ exceptions On Nov 7, 2019, at 3:02 PM, Mccall, Kurt E. (MSFC-EV41) via users <users@lists.open-mpi.org<mailto:users@lists.open-mpi.org>> wrote: My program is failing in MPI_Comm_spawn, but it seems to simply terminate the job rather than throwing an exception that I can catch. Here is the abbreviated error message: [n001:32127] *** An error occurred in MPI_Comm_spawn [n001:32127] *** reported by process [1679884289,1] [n001:32127] *** on communicator MPI_COMM_SELF [n001:32127] *** MPI_ERR_SPAWN: could not spawn processes [n001:32127] *** MPI_ERRORS_ARE_FATAL (processes in this communicator will now abort, [n001:32127] *** and potentially your MPI job) [n002.cluster.com:21375<https://urldefense.proofpoint.com/v2/url?u=http-3A__n002.cluster.com-3A21375_&d=DwMGaQ&c=ApwzowJNAKKw3xye91w7BE1XMRKi2LN9kiMk5Csz9Zk&r=6cP1IfXu3IZOHSDh_vBqciYiIh4uuVgs1MSi5K7l5fQ&m=Rbo2632nQpfH9XERgZXFuZFa2OsovVqiYTpPgXZ7P8E&s=Tt-_cxUJ6VJQdnFlu38vRNoRXWK0G7EM4oPOH_Ye88Q&e=>] PMIX ERROR: BAD-PARAM in file event/pmix_event_notification.c at line 923 [n001.cluster.com:32115<https://urldefense.proofpoint.com/v2/url?u=http-3A__n001.cluster.com-3A32115_&d=DwMGaQ&c=ApwzowJNAKKw3xye91w7BE1XMRKi2LN9kiMk5Csz9Zk&r=6cP1IfXu3IZOHSDh_vBqciYiIh4uuVgs1MSi5K7l5fQ&m=Rbo2632nQpfH9XERgZXFuZFa2OsovVqiYTpPgXZ7P8E&s=OZlYpmZ-vgd-OFvXlbtacOk8WFZUTOSSACtPAYbXJlg&e=>] PMIX ERROR: BAD-PARAM in file event/pmix_event_notification.c at line 923 When I compiled OpenMpi, I used the following flags: ./configure --prefix=/opt/openmpi_pgc --enable-mpi-cxx --enable-cxx-exceptions --with-tm Is --enable-cxx-exceptions not sufficient by itself to enable exceptions? I’m using the Portland Group Compiler pgc++ 19.5-0 and OpenMpi 4.0.2. You need to also set the MPI::ERRORS_THROW_EXCEPTIONS error handler in your MPI application. -- Jeff Squyres jsquy...@cisco.com<mailto:jsquy...@cisco.com>
