Thoughts on the structure of an MPJ reference implementation.

Mark Baker and Bryan Carpenter
NPAC at Syracuse University
Syracuse, NY 13244
Mark.Baker@port.ac.uk,dbc@npac.syr.edu

Abstract:

We sketch a proposed reference implementation for MPJ, the Java Grande Forum's MPI-like message-passing API [9, 3]. The proposal relies heavily on RMI and Jini for finding computational resources, creating slave processes, and handling failures. User-level communication is implemented efficiently directly on top of Java sockets.

• Contents
• Introduction
• Some design decisions
• Overview of the Architecture
• Process creation and monitoring
  • The MPJ daemon
  • The MPJ slave
  • The MPJ client
  • Handling MPJ aborts-Jini events
  • Other failures-Jini leasing
• Sketch of a ``Device-Level'' API for MPJ
  • Minimal API
  • Implementation notes
  • Eager send protocol
  • Rendezvous protocol
• References
• About this document ...