Man page - mpi_t_category_get_info.openmpi(3)

Packages contains this manual

Manual

MPI_T_CATEGORY_GET_INFO

SYNTAX
C Syntax
INPUT PARAMETERS
INPUT/OUTPUT PARAMETERS
OUTPUT PARAMETERS
DESCRIPTION
NOTES
ERRORS
COPYRIGHT

MPI_T_category_get_info — Query information from a category

SYNTAX

C Syntax

#include <mpi.h>

int MPI_T_category_get_info(int cat_index, char *name, int *name_len,
char *desc, int *desc_len, int *num_cvars, int *num_pvars,
int *num_categories)

INPUT PARAMETERS

•

cat_index : Index of the category to be queried.

INPUT/OUTPUT PARAMETERS

•

name_len : Length of the string and/or buffer for name.

•

desc_len : Length of the string and/or buffer for desc.

OUTPUT PARAMETERS

•

name : Buffer to return the string containing the name of the category.

•

desc : Buffer to return the string containing the description of the category.

•

num_cvars : Number of control variables in the category.

•

num_pvars : Number of performance variables in the category.

•

num_categories : Number of categories contained in the category.

DESCRIPTION

MPI_T_category_get_info can be used to query information from a category. The function returns the number of control variables, performance variables, and sub-categories in the queried category in the arguments num_cvars , num_pvars , and num_categories , respectively.

NOTES

This MPI tool interface function returns two strings. This function takes two argument for each string: a buffer to store the string, and a length which must initially specify the size of the buffer. If the length passed is n then this function will copy at most n - 1 characters of the string into the corresponding buffer and set the length to the number of characters copied - 1. If the length argument is NULL or the value specified in the length is 0 the corresponding string buffer is ignored and the string is not returned.

ERRORS

MPI_T_category_get_info will fail if:

•

MPI_T_ERR_NOT_INITIALIZED : The MPI Tools interface not initialized

•

MPI_T_ERR_INVALID_INDEX : The category index is invalid

COPYRIGHT

2003-2025, The Open MPI Community