4.4. GNU Compilers and OpenMPI

GCC 11.5.0 is available by default. In addition, you can use the following OpenMPI by configuring the environment. For more details, see each manual.

Version	Module file
Open MPI 4.1.8	openmpi/4.1.8_cpu
Open MPI 4.1.8 CUDA 12.8 aware	openmpi/4.1.8_gpu

・Example

$ gcc --version
gcc (GCC) 11.5.0 20240719 (Red Hat 11.5.0-5)
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ module avail openmpi
------------------------------------------------ /work/app/modulefiles/openmpi -------------------------------------------------
openmpi/4.1.8_cpu  openmpi/4.1.8_gpu

Key:
modulepath
$

・to use OpenMPI on the super

$ module load openmpi/4.1.8_cpu
$ mpirun --version
mpirun (Open MPI) 4.1.8

Report bugs to http://www.open-mpi.org/community/help/
$

・to use OpenMPI on the gpu (cuda/12.8 module will be loaded automatically.)

$ module load openmpi/4.1.8_gpu
Loading openmpi/4.1.8_gpu
  Loading requirement: cuda/12.8
$ mpirun --version
mpirun (Open MPI) 4.1.8

Report bugs to http://www.open-mpi.org/community/help/
$