mirror of https://gitee.com/openkylin/openmpi.git
39 lines
969 B
Plaintext
39 lines
969 B
Plaintext
.\" -*- nroff -*-
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.\" Copyright 2013 Los Alamos National Security, LLC. All rights reserved.
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.\" Copyright 2006-2008 Sun Microsystems, Inc.
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.\" Copyright (c) 1996 Thinking Machines Corporation
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.\" Copyright (c) 2010 Cisco Systems, Inc. All rights reserved.
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.\" $COPYRIGHT$
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.TH MPI_T_pvar_get_num 3 "#OMPI_DATE#" "#PACKAGE_VERSION#" "#PACKAGE_NAME#"
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.
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.SH NAME
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\fBMPI_T_pvar_get_num\fP \- Query the number of performance variables
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.
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.SH SYNTAX
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.ft R
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.
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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_T_pvar_get_num(int *\fInum_pvar\fP)
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.fi
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.SH OUTPUT PARAMETERS
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.ft R
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.TP 1i
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num_pvar
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Current number of performance variables.
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.SH DESCRIPTION
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.ft R
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MPI_T_pvar_get_num can be used to query the current number of performance variables. The number
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of performance variables may increase throughout the exection of the process but will never
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decrease.
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.SH ERRORS
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.ft R
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MPI_T_pvar_get_num() will fail if:
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.TP 1i
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[MPI_T_ERR_NOT_INITIALIZED]
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The MPI Tools interface not initialized
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