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.\" Man page generated from reStructuredText.
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.TH "SHMEM_QUIET" "3" "May 30, 2025" "" "Open MPI"
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.sp
\fI\%shmem_quiet\fP(3) \- Waits for completion of all outstanding remote
writes issued by a processing element (PE).
.SH SYNOPSIS
.sp
C or C++:
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.nf
.ft C
#include <mpp/shmem.h>
void shmem_quiet(void)
.ft P
.fi
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Fortran:
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.ft C
CALL SHMEM_QUIET
.ft P
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.SH DESCRIPTION
.sp
\fI\%shmem_quiet\fP ensures ordering of put (remote write) operations. All put
operations issued to any processing element (PE) prior to the call to
\fI\%shmem_quiet\fP 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 \fI\%shmem_quiet\fP\&.
.SH NOTES
.nf
\fI\%shmem_quiet\fP is most useful as a way of ensuring ordering of delivery
of several put operations. For example, you might use \fI\%shmem_quiet\fP to
await delivery of a block of data before issuing another put, which
sets a completion flag on another PE.
\fI\%shmem_quiet\fP is not usually needed if \fI\%shmem_barrier_all\fP(3) or
\fI\%shmem_barrier\fP(3) are called. The barrier routines all wait for the
completion of outstanding remote writes (puts).
.fi
.sp
.SH EXAMPLES
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.nf
.ft C
PROGRAM 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
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\fBSEE ALSO:\fP
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\fIintro_shmem\fP(3) \fI\%shmem_barrier\fP(3) \fI\%shmem_barrier_all\fP(3)
\fIshmem_fence\fP(3) \fIshmem_put\fP(3) \fIshmem_wait\fP(3)
.UNINDENT
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.SH COPYRIGHT
2003-2025, The Open MPI Community
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