Network bandwidth measurements and ratio analysis with the HPC challenge benchmark suite (HPCC)

Authors:
Rolf Rabenseifner;Sunil R. Tiyyagura;Matthias Müller
Affiliations:
High-Performance Computing-Center (HLRS), University of Stuttgart, Stuttgart, Germany;High-Performance Computing-Center (HLRS), University of Stuttgart, Stuttgart, Germany;High-Performance Computing-Center (HLRS), University of Stuttgart, Stuttgart, Germany
Venue:
PVM/MPI'05 Proceedings of the 12th European PVM/MPI users' group conference on Recent Advances in Parallel Virtual Machine and Message Passing Interface
Year:
2005

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Abstract

The HPC Challenge benchmark suite (HPCC) was released to analyze the performance of high-performance computing architectures using several kernels to measure different memory and hardware access patterns comprising latency based measurements, memory streaming, inter-process communication and floating point computation. HPCC defines a set of benchmarks augmenting the High Performance Linpack used in the Top500 list. This paper describes the inter-process communication benchmarks of this suite. Based on the effective bandwidth benchmark, a special parallel random and natural ring communication benchmark has been developed for HPCC. Ping-Pong benchmarks on a set of process pairs can be used for further characterization of a system. This paper analyzes first results achieved with HPCC. The focus of this paper is on the balance between computational speed, memory bandwidth, and inter-node communication.