MPI_T_CATEGORY_GET_CVARS(3)			     Open MPI			       MPI_T_CATEGORY_GET_CVARS(3)

MPI_T_category_get_cvars — Query which control variables are in a category

SYNTAX
   C Syntax
	  #include <mpi.h>

	  int MPI_T_category_get_cvars(int cat_index, int len, int indices[])

INPUT PARAMETERS
       • cat_index: Index of the category to be queried.

       • len: The length of the indices array.

OUTPUT PARAMETERS
       • indices: An integer array of size len, indicating control variable indices.

DESCRIPTION
       MPI_T_category_get_cvars	 can  be  used	to  query  which  control  variables are contained in a particular
       category.

ERRORS
       MPI_T_category_get_cvars 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
       2003-2026, The Open MPI Community

						   Mar 05, 2026			       MPI_T_CATEGORY_GET_CVARS(3)
