Abstract: A method for performance analysis of a software application, by its parallel execution in a cluster of reference servers, includes a first execution involving exchanges of useful data between computational and storage nodes of the cluster of servers executed by an interconnection network according to a predetermined protocol by encapsulating these useful data in messages of predetermined size; a second execution involving the same exchanges of useful data between the same computational and storage nodes of the cluster of servers executed by the same interconnection network according to the same protocol but with a different predetermined message size; an extrapolation of the software application performance comprising a simulation of a variation of a bandwidth of the interconnection network based on the difference in the predetermined size of the messages exchanged during the first and second executions.

Abstract: This method (100) for performance analysis of a software application, by its parallel execution in a cluster of reference servers, comprises: a first execution (104) involving exchanges of useful data between computational and storage nodes of the cluster of servers executed by an interconnection network according to a predetermined protocol by encapsulating these useful data in messages of predetermined size; a second execution (108) involving the same exchanges of useful data between the same computational and storage nodes of the cluster of servers executed by the same interconnection network according to the same protocol but with a different predetermined message size; an extrapolation (114) of the software application performance comprising a simulation (116) of a variation of a bandwidth of the interconnection network based on the difference in the predetermined size of the messages exchanged during the first and second executions (104, 108).