MPI Programming Guide

Appendix A. MPE subroutine summary

Table 14 lists the nonblocking collective communication

subroutines that are available for parallel programming. These subroutines, which have a prefix of MPE_I, are extensions of the MPI standard. They are part of IBM's implementation of the MPI standard for PE. For descriptions of these subroutines, see IBM Parallel Environment for AIX: MPI Subroutine Reference.

Table 14. MPE Subroutines

Subroutine: C Name FORTRAN Name	Description
MPE_Iallgather MPE_IALLGATHER	Nonblocking allgather operation.
MPE_Iallgatherv MPE_IALLGATHERV	Nonblocking allgatherv operation.
MPE_Iallreduce MPE_IALLREDUCE	Nonblocking allreduce operation.
MPE_Ialltoall MPE_IALLTOALL	Nonblocking alltoall operation.
MPE_Ialltoallv MPE_IALLTOALLV	Nonblocking alltoallv operation.
MPE_Ibarrier MPE_IBARRIER	Nonblocking barrier operation.
MPE_Ibcast MPE_IBCAST	Nonblocking broadcast operation.
MPE_Igather MPE_IGATHER	Nonblocking gather operation.
MPE_Igatherv MPE_IGATHERV	Nonblocking gatherv operation.
MPE_Ireduce MPE_IREDUCE	Nonblocking reduce operation.
MPE_Ireduce_scatter MPE_IREDUCE_SCATTER	Nonblocking reduce_scatter operation.
MPE_Iscan MPE_ISCAN	Nonblocking scan operation.
MPE_Iscatter MPE_ISCATTER	Nonblocking scatter operation.
MPE_Iscatterv MPE_ISCATTERV	Nonblocking scatterv operation.

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