MPI_T_finalize(3) MPI MPI_T_finalize(3) NAME MPI_T_finalize - Finalize the MPI tool information interface SYNOPSIS int MPI_T_finalize(void) NOTES This routine may be called as often as the corresponding MPI_T_init_thread() routine up to the current point of execution. Calling it more times returns a corresponding error code. As long as the number of calls to MPI_T_finalize() is smaller than the number of calls to MPI_T_init_thread() up to the current point of execution, the MPI tool in- formation interface remains initialized and calls to its routines are per- missible. Further, additional calls to MPI_T_init_thread() after one or more calls to MPI_T_finalize() are permissible. Once MPI_T_finalize() is called the same number of times as the routine MPI_T_init_thread() up to the current point of execution, the MPI tool information interface is no longer initialized. The interface can be reinitialized by subsequent calls to MPI_T_init_thread(). At the end of the program execution, unless MPI_Abort() is called, an ap- plication must have called MPI_T_init_thread() and MPI_T_finalize() an equal number of times. THREAD AND INTERRUPT SAFETY This routine is thread-safe. This means that this routine may be safely used by multiple threads without the need for any user-provided thread locks. However, the routine is not interrupt safe. Typically, this is due to the use of memory allocation routines such as malloc or other non-MPICH runtime routines that are themselves not interrupt-safe. ERRORS All MPI routines (except MPI_Wtime and MPI_Wtick ) return an error value; C routines as the value of the function and Fortran routines in the last ar- gument. Before the value is returned, the current MPI error handler is called. By default, this error handler aborts the MPI job. The error han- dler may be changed with MPI_Comm_set_errhandler (for communicators), MPI_File_set_errhandler (for files), and MPI_Win_set_errhandler (for RMA windows). The MPI-1 routine MPI_Errhandler_set may be used but its use is deprecated. The predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error; however, MPI implementations will attempt to continue whenever possible. MPI_SUCCESS - No error; MPI routine completed successfully. MPI_T_ERR_NOT_INITIALIZED - The MPI tool information interface is not initialized. MPI_ERR_OTHER - Other error; use MPI_Error_string to get more information about this error code. SEE ALSO MPI_T_init_thread 4/10/2026 MPI_T_finalize(3)
NAME | SYNOPSIS | NOTES | THREAD AND INTERRUPT SAFETY | ERRORS | SEE ALSO
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