Hi all, I cannot say I am a black belt MPI developer, and have sort of slammed into the following problem "from the left".
A quick summary of the situation: * The code which causes the problem has been used on many different systems previously, but never on WSL2 before. * One component is launched from within the code by calling mpiexec through a standard library system call. * This component works fine when run from the command line. It is also possible to run it with mpiexec from the command line. * Other commands can still be launched with cmd::system from within the code, but mpiexec of anything will fail invariably. * The OS is a fully updated version of Windows 10, running a fully updated version of Debian in WSL2. The OpenMPI package installed is v. 3.1.3. Now I don't really ask for, nor expect, that anyone can pinpoint the problem with this little background information. For a start I would merely like to hear if anyone has managed to use OpenMPI on WSL2 in a similar fashion. Yours Johannes
