Apparatus and a method and a non-transitory machine-readable storage medium

Abstract

It is provided an apparatus comprising interface circuitry, machine-readable instructions, and processing circuitry to execute the machine-readable instructions. The machine-readable instructions include instructions to: obtain execution phases of an application; to determine critical execution phases among the obtained execution phases based on one or more execution-performance metrics of the execution phases; to cluster execution tasks performed in the determined critical execution phases into one or more clusters corresponding to the respective execution phase based on a runtime behavior of the respective execution tasks; and to generate a performance model based on the determined clusters. The execution phases are designated during a first execution of the application. The execution of the application comprising a plurality of parallel-executing processes distributed on a single node or across a plurality of nodes. The execution phases are determined based on communication events among at least a part of the plurality of processes.

Dependencies are inferred from the claim text.