Re: [OMPI users] Regarding MPI_THREAD_MULTIPLE

Hi! You are already there. the fact that MPI_Thread_init only provide MPI_THREAD_SINGLE shows that MPI_THREAD_MULTIPLE is NOT enabled in the library binary that you're using. Although MPI_THREAD_MULTIPLE is implemented in the library source code, it is only lightly tested, so it is not enabled

[OMPI users] Cannot run batch jobs with SLURM

Hi, I am unable to run batch jobs with my installation of OpenMPI and SLURM. Indeed I am not sure if this is an OpenMPI issue or a SLURM issue, but here is what is happening on my little cluster (3 nodes, one login node and 2 backend nodes with 2 dual core CPUs each). If I run salloc -n 8 mpiru

[OMPI users] Regarding MPI_THREAD_MULTIPLE

Hi, I want to use threads with OpenMPI such that the threads would be able to call MPI functions. For this purpose, I am using MPI_Init_thread with MPI_THREAD_MULTIPLE option. But this function call returns MPI_THREAD_SINGLE in the "provided" parameter indicating that MPI_THREAD_MULTIPLE is