A High Performance Gigabit Ethernet Messaging Method for PVFS

C. Kling, L. Schneidenbach, and B. Schnor (Germany)


cluster computing, parallel I/O systems


Parallel File Systems like PVFS2 are a necessary compo nent for high-performance computing. The design of ef ficient communication layers for these systems is still of great research interest. This paper presents a low-latency messaging method for PVFS2 dedicated for Gigabit Ether net networks and discusses relevant design issues. In con trast to other approaches, we argue that zero-copying can be achieved also for big messages without use of a rendez vous protocol. Further, efficiency within the communica tion layer like a small call stack plays an important role.

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