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

2021-03-07 Thread Anthony Rollett via users
I am embarrassed to admit that I really did have a problem with compiling a simple Fortran program – because of the upgrade to Catalina! When I would try to compile w/ gfortran, I would get errors such as “cannot find -System”. I finally found this website which provided a solution (although I

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

2021-03-07 Thread Gilles Gouaillardet via users
Anthony, Did you make sure you can compile a simple fortran program with gfortran? and gcc? Please compress and attach both openmpi-config.out and config.log, so we can diagnose the issue. Cheers, Gilles On Mon, Mar 8, 2021 at 6:48 AM Anthony Rollett via users wrote: > > I am trying to

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

2021-03-07 Thread Anthony Rollett via users
I am trying to configure v 4.1 with the following, which fails as noted in the Subject line. ./configure --prefix=/Users/Shared/openmpi410 \ FC=gfortran CC=clang CXX=c++ --disable-static \ 2>&1 | tee openmpi-config.out On a 2019 MacbookPro with 10.15 (but I had the same problem with 10.14).

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

2021-03-07 Thread Raut, S Biplab via users
Dear Gilles, Thank you. Please check my replies inline. First you need to make sure your app is correctly pinned in order to measure optimal and stable performances. If this is flat MPI, mpirun --bind-to core ... will do the trick. On the single-node 128 cores, I use the