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.TH "SHMEM_LONGLONG_FINC" "3" "Oct 18, 2026" "" "Open MPI"
.SH NAME
shmem_longlong_finc \- UNKNOWN
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.sp
shmem_int4_finc(3), shmem_int8_finc(3), shmem_int_finc \%<#\:shmem-int-finc>(3),
shmem_long_finc \%<#\:shmem-long-finc>(3), shmem_longlong_finc(3) \- Performs an atomic
fetch\-and\-increment operation on a remote data object
.SH SYNOPSIS
.sp
C or C++:
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.EX
#include <mpp/shmem.h>

int shmem_int_finc(int *target, int pe)

long shmem_long_finc(long *target, int pe)

long long shmem_longlong_finc(long long *target, int pe)
.EE
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Fortran:
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.EX
INCLUDE \(dqmpp/shmem.fh\(dq

INTEGER pe
INTEGER(KIND=4) SHMEM_INT4_FINC, target4
INTEGER(KIND=8) SHMEM_INT8_FINC, target8

ires4 = SHMEM_INT4_FINC(target4, pe)

ires8 = SHMEM_INT8_FINC(target8, pe)
.EE
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.SH DESCRIPTION
.sp
The fetch and increment routines retrieve the value at address
\fBtarget\fP on PE \fBpe\fP, and update \fBtarget\fP with the result of
incrementing the retrieved value by one. The operation must be completed
without the possibility of another process updating \fBtarget\fP between
the time of the fetch and the update.
.sp
The arguments are as follows:
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.TP
.B target
The remotely accessible integer data object to be updated on the
remote PE. The type of target should match that implied in the
SYNOPSIS section.
.TP
.B pe
An integer that indicates the PE number upon which target is to be
updated. If you are using Fortran, it must be a default integer
value.
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.SH NOTES
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The term remotely accessible is defined in \fIintro_shmem\fP(3).
.SH RETURN VALUES
.sp
The contents that had been at the target address on the remote PE prior
to the increment.
.sp
\fBSee also:\fP
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\fIintro_shmem\fP(3)
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.SH Author
The Open MPI community
.SH Copyright
2003-2026, The Open MPI Community
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