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_* 

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