Hi, I am trying to use the MPI_Register_datarep functionnality with mpich-3.2, but while executing, I have this error: ERROR Returned by MPI: 67148823 ERROR_string Returned by MPI: An error occurred in a user-defined data conversion function, error stack: MPI_REGISTER_DATAREP(108): Read and Write datarep conversions are currently not supported by MPI-IO application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0 I have configured mpich-3.2 with: ./configure --prefix=/opt/mpich-3.2_ch3sock --with-device=ch3:sock Is there anything I have to do to be able to use this functionality? Thanks, Eric _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss