77 строки
2.2 KiB
Groff
77 строки
2.2 KiB
Groff
.\"Copyright 2007, Sun Microsystems, Inc.
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.\" Copyright (c) 1996 Thinking Machines Corporation
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.TH MPI_Send 3OpenMPI "March 2007" "Open MPI 1.2" " "
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.SH NAME
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\fBMPI_Send\fP \- Performs a standard-mode blocking send.
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.SH SYNTAX
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.ft R
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.SH C Syntax
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.nf
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#include <mpi.h>
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int MPI_Send(void *\fIbuf\fP, int\fI count\fP, MPI_Datatype\fI datatype\fP, int\fI dest\fP,
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int\fI tag\fP, MPI_Comm\fI comm\fP)
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.SH Fortran Syntax
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.nf
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INCLUDE 'mpif.h'
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MPI_SEND(\fIBUF, COUNT, DATATYPE, DEST, TAG, COMM, IERROR\fP)
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<type> \fIBUF(*)\fP
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INTEGER \fICOUNT, DATATYPE, DEST, TAG, COMM, IERROR\fP
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.SH C++ Syntax
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.nf
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#include <mpi.h>
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void Comm::Send(const void* \fIbuf\fP, int \fIcount\fP, const Datatype&
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\fIdatatype\fP, int \fIdest\fP, int \fItag\fP) const
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.SH INPUT PARAMETERS
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.ft R
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.TP 1i
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buf
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Initial address of send buffer (choice).
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.TP 1i
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count
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Number of elements send (nonnegative integer).
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.TP 1i
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datatype
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Datatype of each send buffer element (handle).
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.TP 1i
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dest
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Rank of destination (integer).
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.TP 1i
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tag
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Message tag (integer).
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.TP 1i
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comm
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Communicator (handle).
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.SH OUTPUT PARAMETER
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.ft R
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.TP 1i
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IERROR
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Fortran only: Error status (integer).
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.SH DESCRIPTION
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.ft R
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MPI_Send performs a standard-mode, blocking send.
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.SH NOTE
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.ft R
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This routine will block until the message is sent to the destination. For an in-depth explanation of the semantics of the standard-mode send, refer to the MPI-1 Standard.
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.SH ERRORS
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Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI:Exception object.
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.sp
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Before the error value is returned, the current MPI error handler is
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called. By default, this error handler aborts the MPI job, except for I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error.
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.SH SEE ALSO
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.ft R
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.nf
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MPI_Isend
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MPI_Bsend
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MPI_Recv
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' @(#)MPI_Send.3 1.20 06/03/09
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