MPI_Scatterv-nodes-short

In the MPI_Scatterv operation a root process distributes data to every node. In addition to MPI_Scatter a displacement and length can be given, which determine which data from the root process' buffer is send to the other nodes. It is intersting to see the extra costs compared to MPI_Scatter. We vary over the number of nodes. The messages have the length of 256 Bytes (for each node).

• Pattern: Collective varied over number of nodes.
• default values: 8 nodes, message length 256 units, max. / act. time for suite disabled/0.00 min.
• Max. allowed standard error is 3.00 %.

	number of nodes
X axis scale	linear
Param. refinement	no automatic x wide adaption
Argument range	2 - 8 units (s. below)
Argument stepwidth	1.000000

• Units: number, basetype 1 (MPI_INT), send-datatype 20: size 4 Bytes, extent 4 Bytes (user defined basetype 1 (MPI_INT)), receive-datatype 20: size 4 Bytes, extent 4 Bytes (user defined basetype 1 (MPI_INT))