[This is preliminary documentation and is subject to change.]

The equivalent of a MPI_Reduce(IntPtr, IntPtr, Int32, Int32, Int32, Int32, Int32) followed by a MPI_Scatterv(IntPtr, array<Int32>[]()[], array<Int32>[]()[], Int32, IntPtr, Int32, Int32, Int32, Int32), performing a reduction on the data provided in sendbuf and then scattering those results to all of the processes. See ReduceScatter<(Of <(T>)>)(array<T>[]()[], ReductionOperation<(Of <(T>)>), array<Int32>[]()[]).

Namespace:  MPI
Assembly:  MPI (in MPI.dll)
Version: 0.8.0.0 (0.8.0.0)

Syntax

C#
public static int MPI_Reduce_scatter(
	IntPtr sendbuf,
	IntPtr recvbuf,
	int[] recvcounts,
	int datatype,
	int op,
	int comm
)
Visual Basic (Declaration)
Public Shared Function MPI_Reduce_scatter ( _
	sendbuf As IntPtr, _
	recvbuf As IntPtr, _
	recvcounts As Integer(), _
	datatype As Integer, _
	op As Integer, _
	comm As Integer _
) As Integer
Visual C++
public:
static int MPI_Reduce_scatter(
	IntPtr sendbuf, 
	IntPtr recvbuf, 
	array<int>^ recvcounts, 
	int datatype, 
	int op, 
	int comm
)

Parameters

sendbuf
Type: System..::.IntPtr
Buffer containing the data to be reduced.
recvbuf
Type: System..::.IntPtr
Buffer that will receive this process's results.
recvcounts
Type: array< System..::.Int32 >[]()[]
An array whose ith element gives the number of results that will go to the process with rank i.
datatype
Type: System..::.Int32
The type of data in sendbuf and recvbuf.
op
Type: System..::.Int32
The operation used to combine each element in sendbuf.
comm
Type: System..::.Int32
The communicator over which this collective will operate.

See Also