Indicates that this process is the root for a collective operation. The root process should pass this constant in as the value for root for calls to collective operations. Other processes in the same group as root should use Null. Processes in the group sending to the root should use the root process' local rank.

Namespace:  MPI
Assembly:  MPI (in MPI.dll)
Version: (


public const int Root
Visual Basic (Declaration)
Public Const Root As Integer
Visual C++
literal int Root

See Also