[mpich-discuss] Error with MPI_Register_datarep

[Thakur, Rajeev]

Support for user-defined data representations has not been added to MPICH yet. There has not been much demand for it.

Rajeev


> On Mar 10, 2016, at 1:52 PM, Éric Chamberland <Eric.Chamberland at giref.ulaval.ca> wrote:
> 
> 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, Éric Chamberland a écrit :
>> 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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