Newsgroups: comp.parallel From: rlarowe@chpc.org (Rick LaRowe) Subject: Technical Report on Galactica Net Organization: Center For High Perf. Computing of WPI; Marlboro Ma Date: Fri, 12 Nov 1993 20:10:52 GMT Announcing the availability of the following technical report: Update Propagation in the Galactica Net Distributed Shared Memory Architecture A. Wilson, R. LaRowe, R. Ionta, R. Valentino, B. Hu, P. Breton, and P. Lau CHPC TR 93-007 Abstract Galactica Net employs a unique approach to supporting shared memory coherence in a distributed computing system. The approach is based upon the use of operating system software for the complex management of sharing information, but provides hardware support for the mnost important coherence operations. The goal is to delegate as much of the complexity to software as possible, while still exploiting hardware to ensure high performance. In this paper, we describe the Galactica Net update-based coherence protocol and the hardware required to implement that protocol. We also present basic performance data obtained through detailed hardware simulations. The report is available via anonymous ftp from chpc.chpc.org, in the directory pub/gnet. The report is available as a compressed postscript file called gnet_updates.ps.Z. Rick LaRowe -- Center for High Performance Computing internet: rlarowe@chpc.org Worcester Polytechnic Institute rlarowe@wpi.edu Suite 170 phone: (508) 624-7400 x610 Marlborough, MA 01752 (508) 624-6354 (fax)