MPI_Comm_detach_buffer(3) MPI MPI_Comm_detach_buffer(3) NAME MPI_Comm_detach_buffer - Removes an existing buffer (for use in MPI_Bsend etc) in the communicator SYNOPSIS int MPI_Comm_detach_buffer(MPI_Comm comm, void *buffer_addr, int *size) int MPI_Comm_detach_buffer_c(MPI_Comm comm, void *buffer_addr, MPI_Count *size) INPUT PARAMETERS comm - communicator (handle) OUTPUT PARAMETERS buffer_addr - initial buffer address (choice) size - buffer size, in bytes (integer) NOTES FOR FORTRAN All MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK ) have an additional argument ierr at the end of the argument list. ierr is an inte- ger and has the same meaning as the return value of the routine in C. In Fortran, MPI routines are subroutines, and are invoked with the call state- ment. All MPI objects (e.g., MPI_Datatype , MPI_Comm ) are of type INTEGER in Fortran. 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_ERR_ARG - Invalid argument. Some argument is invalid and is not identified by a specific error class (e.g., MPI_ERR_RANK ). MPI_ERR_COMM - Invalid communicator. A common error is to use a null communica- tor in a call (not even allowed in MPI_Comm_rank ). MPI_ERR_OTHER - Other error; use MPI_Error_string to get more information about this error code. SEE ALSO MPI_Comm_attach_buffer, MPI_Bsend 4/10/2026 MPI_Comm_detach_buffer(3)
NAME | SYNOPSIS | INPUT PARAMETERS | OUTPUT PARAMETERS | NOTES FOR FORTRAN | ERRORS | SEE ALSO
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