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Changes between Initial Version and Version 1 of mpich/MPI_Reduce


Ignore:
Timestamp:
Jun 17, 2008, 4:39:34 PM (16 years ago)
Author:
wade
Comment:

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  • mpich/MPI_Reduce

    v1 v1  
     1= MPI_Reduce =
     2Reduces values on all processes to a single value
     3
     4= Synopsis =
     5{{{
     6  #include "mpi.h"
     7  int MPI_Reduce ( void *sendbuf, void *recvbuf, int count, MPI_Datatype datatype, MPI_Op op, int root, MPI_Comm comm )
     8}}}
     9
     10= Input Parameters =
     11{{{
     12  sendbuf   address of send buffer (choice)
     13  count     number of elements in send buffer (integer)
     14  datatype  data type of elements of send buffer (handle)
     15  op        reduce operation (handle)
     16  root      rank of root process (integer)
     17  comm      communicator (handle)
     18}}}
     19
     20= Output Parameter =
     21{{{
     22  recvbuf   address of receive buffer (choice, significant only at root)
     23}}}