RPN_COMM_allgather

RPN_COMM

(RPN_COMM_allgather)

SUBROUTINE RPN_COMM_allgather( sendbuf, sendcount, sendtype,
                            recvbuf, recvcount, recvtype, comm, ierr)

ARGUMENTS

sendtype:  character (see table below)
recvtype:  character (see table below)
comm:      character (see table below)
recvcount: integer (number of items received from *one* PE)

See the MPI documentation for MPI_Allgather

DESCRIPTION

Stub for MPI_allgather routine using the same calling sequence, except for datatypes, operators and communicators. Those are replaced by an equivalent string, described in the table below:

Types supported	Operators supported	Communicators recognized
"MPI_CHARACTER"*	"MPI_OP_NULL"	"EW" (east-west)
"MPI_INTEGER"	"MPI_MAX"	"NS" (north-south)
"MPI_INTEGER2"	"MPI_MIN"	"GRID" (full domain grid)
"MPI_REAL"	"MPI_SUM"	"BLOC" (inside local block)
"MPI_REAL8"	"MPI_PROD"	"BLOCMASTER" (between blocks master PEs)
"MPI_REAL4"	"MPI_LAND"	"ALL" (every PE)
"MPI_DOUBLE_PRECISION"	"MPI_BAND"	"DOMM", equivalent to "GRID"
"MPI_COMPLEX"	"MPI_LOR"	"DEFO" default communicator
"MPI_DOUBLE_COMPLEX"	"MPI_BOR"
"MPI_LOGICAL"	"MPI_LXOR"
	"MPI_BXOR"
	"MPI_MAXLOC"
	"MPI_MINLOC"

* Note: MPI_CHARACTER for/pour RPN_COMM_bcastc only/seulement

EXAMPLE
1- MPI_allgather for the whole grid:
call RPN_COMM_allgather(mypart, nitems_in_mypart, "mpi_integer", our_parts, nitems_in_mypart,"mpi_integer","GRID", ierr)

SEE ALSO
RPN_COMM_*

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