Re: [OMPI users] Stable and performant openMPI version for Ubuntu20.04 ?

2021-03-08 Thread Raut, S Biplab via users
Any suggestions or hints on the performance anomalies observed my me ? By the way, it would be good to know if there is any mechanism/tool to do performance comparison between two openMPI versions (let’s say an older 3.1.1 version vs a new stable release 4.1.0 version) ? With Regards, S. Biplab

Re: [OMPI users] config: gfortran: "could not run a simple Fortran program"

2021-03-08 Thread Jeff Squyres (jsquyres) via users
What is the exact configure line you used to build Open MPI? You don't want to put CC and CXX in a single quoted token. For example, do this: ./configure CC=gcc CXX=g++ ... Don't do this (which is what your previous mail implied you might be doing...?): ./configure "CC=gcc CXX=g++" ... On