SHMEM\_QUIET - Online Linux Manual PageSection : 3
Updated : Jan 21, 2016
Source : 1.10.2
Note : Open MPI

NAMEshmem_quiet(3) − Waits for completion of all outstanding remote writes issued by a processing element (PE).

SYNOPSISC or C++: #include <mpp/shmem.h> void shmem_quiet(void); Fortran: CALL SHMEM_QUIET

DESCRIPTIONshmem_quiet ensures ordering of put (remote write) operations. All put operations issued to any processing element (PE) prior to the call to shmem_quiet are guaranteed to be visible to all other PEs no later than any subsequent memory load or store, remote put or get, or synchronization operations that follow the call to shmem_quiet.

NOTESshmem_quiet is most useful as a way of ensuring ordering of delivery of several put operations. For example, you might use shmem_quiet to await delivery of a block of data before issuing another put, which sets a completion flag on another PE.
shmem_quiet is not usually needed if shmem_barrier_all(3) or shmem_barrier(3) are called. The barrier routines all wait for the completion of outstanding remote writes (puts).

EXAMPLESPROGRAM COMPFLAG INCLUDE "mpp/shmem.fh" INTEGER FLAG_VAR, ARRAY(100), RECEIVER, SENDER COMMON/FLAG/FLAG_VAR COMMON/DATA/ARRAY INTRINSIC MY_PE FLAG_VAR = 0 CALL SHMEM_BARRIER_ALL ! wait for FLAG_VAR to be initialized SENDER = 0 ! PE 0 sends the data RECEIVER = 1 ! PE 1 receives the data IF (MY_PE() .EQ. 0) THEN ARRAY = 33 CALL SHMEM_PUT(ARRAY, ARRAY, 100, RECEIVER) ! start sending data CALL SHMEM_QUIET ! wait for delivery CALL SHMEM_PUT(FLAG_VAR, 1, 1, RECEIVER) ! send completion flag ELSE IF (MY_PE() .EQ. RECEIVER) THEN CALL SHMEM_UDCFLUSH CALL SHMEM_WAIT(FLAG_VAR, 0) PRINT *,ARRAY ! ARRAY has been delivered ENDIF END

SEE ALSOintro_shmem(3), shmem_barrier(3), shmem_barrier_all(3), shmem_fence(3), shmem_put(3), shmem_wait(3)
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ERROR : Need New Coding :         (rof_escape_sequence|91|shmem_quiet.3|14|\_QUIET" "3" "Jan 21, 2016" "1.10.2" "Open MPI" |.TH "SHMEM\\_QUIET" "3" "Jan 21, 2016" "1.10.2" "Open MPI" )