Hi! I'm doing a test to measure the transfer rates and latency of ompi over infiniband
starting from 1 kB everything was doing fine until i wanted to transfer 2 GB and i received this error [tatami:02271] *** An error occurred in MPI_Recv [tatami:02271] *** on communicator MPI_COMM_WORLD [tatami:02271] *** MPI_ERR_COUNT: invalid count argument [tatami:02271] *** MPI_ERRORS_ARE_FATAL (goodbye) [randori:12166] *** An error occurred in MPI_Send [randori:12166] *** on communicator MPI_COMM_WORLD [randori:12166] *** MPI_ERR_COUNT: invalid count argument [randori:12166] *** MPI_ERRORS_ARE_FATAL (goodbye) this error appears if i run the program either on the same node or both is 2 GB the intrinsic limit of MPI_Send/MPI_Recv? thanks a lot Vittorio
