Hi
We are working on the earlier problem. In the meantime, we have a few doubts
regarding MPI_Alltoall.
int MPI_Alltoall(void *sbuf, int scount, MPI_Datatype sdtype, void*
rbuf, int rcount, MPI_Datatype rdtype, MPI_Comm comm)
- Does MPI_Alltoall help in acheiving synchronization between the
processes?
- In MPI_Alltoall, what does the receivecount stand for?-----> maximum
number of values to be got from each other process or exact number of
the same? Should the amount of data to be received from each other process
be the same?
- How are data from the other processes organised in the receive
buffer? Is it possible to retrieve data that has been received from say
process 'n' from the receivebuffer?
Can somebody please throw some light on them as soon as possible?
Thanks
MEC
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CE 2002-06
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