Jeff,
If your prefix is /home/user/bin, mpicc will be installed in /home/user/ bin/bin Are you running mpicc on the machine that built Open MPI? That error could happen if building with an external PMIx library, and the one being used does not implement a subroutine than the one used at configure time. Forcing the use of the internal PMIx (e.g. configure --with-pmix= internal) could be a workaround. Cheers, Gilles ----- Original Message ----- Good morning, I'm building version 5.0.3 and the configuration and installation all seem to go fine. I'm installing into my home directory: /home/user/bin So I configured it with the command: CC=gcc FC=gfortran ./configure prefix=/home/user/bin gcc is version 11.4.0 and gfortran is version 11.4.0 as well (this is Ubuntu 22.04). I don't spot anything in the configure output so I did make; make install. I prepended to $PATH, "/home/user/bin; /home/user/sbin; /home/user/ include". I prepended "/home/user/lib" to $LD_LIBARY_PATH. The paths seem to work fine. $ which mpicc /home/user/bin//mpicc However, when I try "mpicc -v", I get the following error. $ mpicc -v mpicc: symbol lookup error: mpicc: undefined symbol: PMIx_Info_create Did something not get built? Thanks! Jeff
