mpi-group-translate-ranks-function.md

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MPI_Group_translate_ranks function	MPI_Group_translate_ranks function	3c93c90e-2c99-4e37-8662-c7adea21f291	https://msdn.microsoft.com/en-us/library/Dn473406(v=VS.85)	59360942	03/28/2018	v=VS.85	MPI_GROUP_TRANSLATE_RANKS mpif/MPI_Group_translate_ranks mpi/MPI_GROUP_TRANSLATE_RANKS	C++ C	Msmpi.dll	MPI_Group_translate_ranks	DLLExport	Windows	apiref kbSyntax	VS	INDEX,FOLLOW	Master the MPI_Group_translate_ranks function with this comprehensive guide. Learn syntax, parameters, and return values for efficient process numbering.

MPI_Group_translate_ranks function

Determines the relative numbering of the same processes in two different groups.

Syntax

int MPIAPI MPI_Group_translate_ranks(
        MPI_Group         group1,
        int               n,
        _In_count_(n) int *ranks1,
        MPI_Group         group2,
  _Out_ int               *ranks2
);

Parameters

• group1
  The first group.

• n
  The number or ranks in the ranks1 and ranks2 parameter arrays.

• ranks1
  Zero or more valid ranks in the first group.

  [!NOTE] The MPI_PROC_NULL constant is valid for this parameter. The corresponding rank that is returned in the ranks2 parameter is also MPI_PROC_NULL.

   

• group2
  The second group.

• ranks2 [out]
  On return, points to the corresponding ranks in the second group. The value MPI_UNDEFINED indicates that a process is in the first group, but not the second.

Return value

Returns MPI_SUCCESS on success. Otherwise, the return value is an error code.

In Fortran, the return value is stored in the IERROR parameter.

Fortran

    MPI_GROUP_TRANSLATE_RANKS( GROUP1, N, RANKS1, GROUP2, RANKS2, IERROR)
        INTEGER GROUP1, N, RANKS1(*), GROUP2, RANKS2(*), IERROR

Requirements

Product	HPC Pack 2012 MS-MPI Redistributable Package, HPC Pack 2008 R2 MS-MPI Redistributable Package, HPC Pack 2008 MS-MPI Redistributable Package or HPC Pack 2008 Client Utilities
Header	Mpi.h; Mpif.h
Library	Msmpi.lib
DLL	Msmpi.dll

See also

MPI Group Functions

MPI_Group_incl