2025-10-17
It has been discovered that among the OpenMPI binaries published on TSUBAME4, only the binaries used by openmpi/5.0.7-nvhpc have different build-time settings from other OpenMPI versions.
Therefore, the binaries loaded when specifying the openmpi/5.0.7-nvhpc module will be changed according to the following schedule.
1. date
2025-10-29 (Wed) 12:30
2. Changes
Modify the build options for OpenMPI.
Before: CUDA-aware MPI disabled
After: CUDA-aware MPI enabled (Behavior will be equivalent to all modules in 5.0.2, and to 5.0.7-gcc / 5.0.7-intel)
3. Other
For those who wish to continue using the current binary for any reason, we have prepared the
“ openmpi/5.0.7-nvhpc_no-CUDA-aware-MPI ” module. Please change the specified module as needed by October 29.
(“ openmpi/5.0.7-nvhpc_no-CUDA-aware-MPI ” module is available from today until the end of this fiscal year.)