RPN_COMM_barrier

RPN_COMM

(RPN_COMM_barrier)

SUBROUTINE RPN_COMM_barrier(comm, ierr)

ARGUMENTS

comm: character (see table below)

See the MPI documentation for MPI_Barrier

DESCRIPTION
Stub for MPI_barrier 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
This RPN_COMM routine is a sync point for all PE's included in the specified communicators. Its primary use is for debugging, it may be useful in some other situations when a task has to be terminated for everyone before starting a new one.

EXAMPLE
1- MPI_barrier for the grid:
call RPN_COMM_barrier("GRID", ierr)

SEE ALSO
RPN_COMM_*

Return to RPN Libraries home page

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"