84 строки
1.7 KiB
Plaintext
84 строки
1.7 KiB
Plaintext
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.\" -*- nroff -*-
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.\" Copyright (c) 2016 Mellanox Technologies, Inc.
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.\" $COPYRIGHT$
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.de Vb
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.ft CW
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.nf
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..
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.de Ve
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.ft R
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.fi
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..
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.TH "SHMEM\\_FETCH" "3" "Unreleased developer copy" "gitclone" "Open MPI"
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.SH NAME
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\fIshmem_int4_fetch\fP(3),
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\fIshmem_int8_fetch\fP(3),
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\fIshmem_int_fetch\fP(3),
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\fIshmem_long_fetch\fP(3),
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\fIshmem_longlong_fetch\fP(3)
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\fIshmem_double_fetch\fP(3)
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\fIshmem_float_fetch\fP(3)
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\- Atomically fetches the value of a remote data object
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.SH SYNOPSIS
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C or C++:
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.Vb
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#include <mpp/shmem.h>
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int shmem_int_fetch(int *target, int pe);
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long shmem_long_fetch(long *target, int pe);
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long long shmem_longlong_fetch(long long *target, int pe);
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double shmem_double_fetch(long long *target, int pe);
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float shmem_float_fetch(float *target, int pe);
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.Ve
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Fortran:
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.Vb
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INCLUDE "mpp/shmem.fh"
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INTEGER pe
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INTEGER(KIND=4) SHMEM_INT4_FETCH, ires, target
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ires = SHMEM_INT4_FETCH(target, pe)
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INTEGER(KIND=8) SHMEM_INT8_FETCH, ires, target
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ires = SHMEM_INT8_FETCH(target, pe)
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REAL(KIND=4) SHMEM_INT4_FETCH, ires, target
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ires = SHMEM_REAL4_FETCH(target, pe)
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REAL(KIND=8) SHMEM_INT8_FETCH, ires, target
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ires = SHMEM_REAL8_FETCH(target, pe)
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.Ve
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.SH DESCRIPTION
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The shmem_fetch functions perform an atomic fetch operation. They return the contents of the
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\fBtarget\fP as an atomic operation.
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.PP
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The arguments are as follows:
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.TP
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target
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The remotely accessible data object to be fetched from the remote PE.
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.TP
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pe
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An integer that indicates the PE number from which \fItarget\fP is to be fetched. If you are
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using Fortran, it must be a default integer value.
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.PP
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.SH RETURN VALUES
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The contents at the \fItarget\fP address on the remote PE.
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The data type of the return value is the same as the the
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type of the remote data object.
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.SH SEE ALSO
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\fIintro_shmem\fP(3)
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