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An Evaluation of the Myrinet/GM2 Two-Port Networks (2004)
| Content Provider | CiteSeerX |
|---|---|
| Author | Zamani, Reza Qian, Ying Afsahi, Ahmad |
| Description | It is important to systematically assess the features and performance of the new interconnects for highperformance clusters. This paper presents the performance of the two-port Myrinet networks at the GM2 and MPI layers using a complete set of microbenchmarks. We also present the communication characteristics and the performance of the NAS Multi-Zone benchmarks and SMG2000 application under the MPI and MPI-OpenMP programming paradigms. We found that the host overhead is very small in our cluster, and the Myrinet is sensitive to the buffer reuse patterns. Our applications achieved a better performance for MPI than the mixed-mode. All the applications studied use only nonblocking communications, thus able to overlap their communications with the computations. Our experiments show that the two-port communication at the GM and MPI levels (except for the RDMA read, and overlap) outperforms the one-port communication for the bandwidth. However, this did not translate in a considerable improvement at least for our applications. 1. |
| File Format | |
| Language | English |
| Publisher Date | 2004-01-01 |
| Publisher Institution | in Proceedings of the 29th Annual IEEE International Conference on Local Computer Networks (LCN'04 |
| Access Restriction | Open |
| Subject Keyword | Two-port Communication Myrinet Gm2 Two-port Network New Interconnects Smg2000 Application Rdma Read Mpi Layer Na Multi-zone Benchmark Mpi Level Buffer Reuse Pattern Communication Characteristic Considerable Improvement Host Overhead One-port Communication Mpi-openmp Programming Paradigm Two-port Myrinet Network Complete Set Highperformance Cluster |
| Content Type | Text |
| Resource Type | Article |
