I am using Cray MPT, and I would like to allocate a large region of memory from which, in turn, I will allocate buffers to be used with MPI. I am wondering if there is any benefit from allocating that heap with MPI_Alloc_mem. I would hope that it could be pre-registered for RDMA, speeding things up. However, I need this memory to have a specific alignment. Is there a general way in MPICH or maybe a specific way for MPT to request alignment with MPI_Alloc_mem? Thanks, Marcin _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss