« Return to documentation listing
Table of Contents
#include <mpi.h> int MPI_T_cvar_handle_alloc(int cvar_index, void *obj_handle, MPI_T_cvar_handle *handle, int *count) int MPI_T_cvar_handle_free(MPI_T_cvar_handle *handle) DescriptionMPI_T_cvar_handle_alloc binds the control variable specified in cvar_index to the MPI object specified in obj_handle. If MPI_T_cvar_get_info returns MPI_T_BIND_NO_OBJECT as the binding of the variable the obj_handle argument is ignored. The number of values represented by this control variable is returned in the count parameter. If the control variable represents a string then count will be the maximum length of the string. MPI_T_cvar_handle_free frees a handle allocated by MPI_T_cvar_handle_alloc and sets the handle argument to MPI_T_CVAR_HANDLE_NULL. NotesOpen MPI does not currently support binding MPI objects to control variables so the obj_handle argument is always ignored. ErrorsMPI_T_cvar_handle_alloc() will fail if: [MPI_T_ERR_NOT_INITIALIZED] The MPI Tools interface not initialized [MPI_T_ERR_INVALID_INDEX] The control variable index is invalid [MPI_T_ERR_OUT_OF_HANDLES] No more handles available MPI_T_cvar_handle_free() will fail if: [MPI_T_ERR_NOT_INITIALIZED] The MPI Tools interface not initialized [MPI_T_ERR_INVALID_HANDLE] The handle is invalid See Also MPI_T_cvar_get_info