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.\" Man page generated from reStructuredText.
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.TH "MPI_T_CATEGORY_GET_CVARS" "3" "May 30, 2025" "" "Open MPI"
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.sp
\fI\%MPI_T_category_get_cvars\fP — Query which control variables are in a
category
.SH SYNTAX
.SS C Syntax
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
#include <mpi.h>
int MPI_T_category_get_cvars(int cat_index, int len, int indices[])
.ft P
.fi
.UNINDENT
.UNINDENT
.SH INPUT PARAMETERS
.INDENT 0.0
.IP \(bu 2
\fBcat_index\fP: Index of the category to be queried.
.IP \(bu 2
\fBlen\fP: The length of the indices array.
.UNINDENT
.SH OUTPUT PARAMETERS
.INDENT 0.0
.IP \(bu 2
\fBindices\fP: An integer array of size len, indicating control variable indices.
.UNINDENT
.SH DESCRIPTION
.sp
\fI\%MPI_T_category_get_cvars\fP can be used to query which control variables
are contained in a particular category.
.SH ERRORS
.sp
\fI\%MPI_T_category_get_cvars\fP will fail if:
.INDENT 0.0
.IP \(bu 2
\fBMPI_T_ERR_NOT_INITIALIZED\fP: The MPI Tools interface not initialized
.IP \(bu 2
\fBMPI_T_ERR_INVALID_INDEX\fP: The category index is invalid
.UNINDENT
.SH COPYRIGHT
2003-2025, The Open MPI Community
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