DeepSpeed

4809072a - fix: remove premature MPI environment variable check in OpenMPIRunner (#7751)

fix: remove premature MPI environment variable check in OpenMPIRunner (#7751) fix: remove premature MPI environment variable check in OpenMPIRunner Resolves issue #7711 where OpenMPI launcher incorrectly checked for MPI environment variables before mpirun execution. The problematic check in validate_args() was removed because: - MPI environment variables (OMPI_COMM_WORLD_LOCAL_RANK, OMPI_COMM_WORLD_RANK, OMPI_COMM_WORLD_SIZE) are set by mpirun, not before it runs - This timing issue caused false "MPI environment variables are not set" errors - The _setup_mpi_environment() method is preserved for later use when appropriate This fix allows OpenMPI launcher to work correctly without requiring users to comment out the validation manually. --------- Signed-off-by: Masahiro Tanaka <mtanaka@anyscale.com> Co-authored-by: Masahiro Tanaka <mtanaka@anyscale.com>