Accumulate

This is the benchmark for the MPI_Accumulate function. It reduces a vector of length L = x/sizeof(float) of float items. The MPI data type is MPI_FLOAT. The MPI operation is MPI_SUM. See the basic definitions and a schematic view of the pattern below.

Accumulate Definition

Property

Description

Measured pattern

As symbolized between in the figure below. This benchmark runs on two active processes (Q=2).

MPI data type

MPI_FLOAT

MPI operation

MPI_SUM

Root

0

Reported timings

t=t(M) (in μsec) as indicated in the figure below, non-aggregate (M=1)and aggregate (M=n_sample). For details, see Actual Benchmarking.

Reported throughput

None

Accumulate Pattern

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