mpi-group-functions.md

title	TOCTitle	ms:assetid	ms:mtpsurl	ms:contentKeyID	ms.date	mtps_version	description
MPI Group Functions	MPI Group Functions	C907F7D6-7B0C-41B1-B13F-3BD9563FCD20	https://msdn.microsoft.com/en-us/library/Dn473399(v=VS.85)	59360935	03/28/2018	v=VS.85	Explore MPI Group Functions on Microsoft's official site. Learn about group constructors, rank retrieval, group size, and more. Enhance your coding skills.

MPI Group Functions

In this section

• MPI_Comm_group
  Retrieves the group that is associated with a communicator.

• MPI_Group_compare
  Compares two groups for member equality.

• MPI_Group_difference
  Creates a new group from the difference between two existing groups.

• MPI_Group_excl
  A group constructor that is used to define a new group by deleting ranks from an existing group.

• MPI_Group_free
  Frees a group.

• MPI_Group_incl
  Creates a new group that contains a subset of the processes in an existing group.

• MPI_Group_intersection
  Creates a new group from the intersection of two existing groups.

• MPI_Group_range_excl
  Creates a new group by removing processes from an existing group.

• MPI_Group_range_incl
  A group constructor that is used to define a new group by adding additional sets of ranks to an existing group.

• MPI_Group_rank
  Returns the rank of the calling process in the specified group.

• MPI_Group_size
  Retrieves the size of the specified group.

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

• MPI_Group_union
  Creates a new group from the union of two existing groups.