Dear all,
I have notice small difference between OPEN-MPI and intel MPI.
For example in MPI_ALLREDUCE in intel MPI is not allowed to use the same variable in send and receiving Buff.
I have written my code in OPEN-MPI, run in on a intel-MPI cluster.
Now I have the following error:
Fatal error in MPI_Isend: Invalid communicator, error stack: MPI_Isend(158): MPI_Isend(buf=0x1dd27b0, count=1, INVALID DATATYPE, dest=0, tag=0, comm=0x0, request=0x7fff9d7dd9f0) failed
This is how I create my type:
CALL MPI_TYPE_VECTOR(1, Ncoeff_MLS, Ncoeff_MLS, MPI_DOUBLE_PRECISION, coltype, MPIdata%iErr) CALL MPI_TYPE_COMMIT(coltype, MPIdata%iErr) ! CALL MPI_TYPE_VECTOR(1, nVar, nVar, coltype, MPI_WENO_TYPE, MPIdata%iErr) CALL MPI_TYPE_COMMIT(MPI_WENO_TYPE, MPIdata%iErr)
do you believe that is here the problem?
Is also this the way how intel MPI create a datatype?
What do you think?