Design Issues in the Implementation of MPI2 One Sided Communication in Ethernet based Networks

L. Schneidenbach and B. Schnor (Germany)


MPI2 One Sided Communication, Ethernet, Parallel Appli cations


In current research, one sided communication of the MPI2 standard is pushed as a promising technique [6, 7, 10, 18]. But measurements of applications and MPI2 primitives show a different picture [17]. In this paper we analyze de sign issues of MPI2 one sided communication and its im plementations. We focus on asynchronous communication for parallel applications in Ethernet cluster environments. Further, one sided communication is compared to two sided communication. This paper will prove that the key problem to performance is not only the implementation of MPI2 one sided communication - it is the design.

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