Hi, Here is my little test program. Almost the same as chapter 9.1 of the book " Using MPI-2: Advanced Features of the Message-Passing Interface" from William Gropp, Ewing Lusk, and Rajeev Thakur. Thanks, Eric Le 16-03-09 22:39, �ric Chamberland a �crit :

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

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