MPI_Group_translate_ranks(3) MPI MPI_Group_translate_ranks(3) NAME MPI_Group_translate_ranks - Translates the ranks of processes in one group to those in another group SYNOPSIS int MPI_Group_translate_ranks(MPI_Group group1, int n, const int ranks1[], MPI_Group group2, int ranks2[]) INPUT PARAMETERS group1 - group1 (handle) n - number of ranks in ranks1 and ranks2 arrays (integer) ranks1 - array of zero or more valid ranks in group1 (integer) group2 - group2 (handle) OUTPUT PARAMETERS ranks2 - array of corresponding ranks in group2, MPI_UNDEFINED when no cor- respondence exists. (integer) As a special case (see the MPI-2 errata), if the input rank is MPI_PROC_NULL , MPI_PROC_NULL is given as the output rank. 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. 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_GROUP - Null or invalid group passed to function. MPI_ERR_OTHER - Other error; use MPI_Error_string to get more information about this error code. 4/10/2026 MPI_Group_translate_ranks(3)
NAME | SYNOPSIS | INPUT PARAMETERS | OUTPUT PARAMETERS | THREAD AND INTERRUPT SAFETY | NOTES FOR FORTRAN | ERRORS
Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=MPI_Group_translate_ranks&sektion=3&manpath=FreeBSD+Ports+15.1.quarterly>