cdp@uicsrd.UUCP (03/13/87)
Illinois is the place you want! :-) Have you heard of the Cedar multiprocessor? See e.g., the 1985 & 1986 Proceedings of ICPP
mcdaniel@uicsrd.UUCP (03/14/87)
> Illinois is the place you want! :-) Have you heard of the > Cedar multiprocessor? See e.g., the 1985 & 1986 Proceedings of ICPP [ICPP := the International Conference on Parallel Processing, held in scenic St. Charles, Illinois.] "Senator, that happens not to be the case." First: from the base note, >> For the last three or four years, I've heard rumors of a very >> successful multi-processor UNIX system implemented at some (sub)set of Cedar does not exist yet. Of course, when it IS built, it WILL be wildly successful. [The dolts on the net force me to add a :-), the electronic laugh track.] Second: >> to me, one processor ran the kernel, having total access to the >> internal data structures. All system calls, from all processes on all >> processors, were directed to the designated kernel processor. Cedar will not have a master processor or cluster. The OS will be distributed over all the Cedar clusters, and all the parts will communicate as peers. Third: >> independent caches but operating from a common physical memory address >> space and a common set of peripherals. Third: Cedar will have a global memory, but each cluster will have its own cluster memory. Furthermore, the memory map in various clusters (various processors, perhaps?) may differ. Thus, Cedar will not have a common address space, in that a given address x in one cluster has no necessary relationship with address x in another cluster. Presently, Purdue people put progress papers in ICPP proceedings, though. Check the last few years's proceedings. (I thinks the machine is called PASM.) -- Tim, the Bizarre and Oddly-Dressed Enchanter Center for Supercomputing Research and Development at the University of Illinois at Urbana-Champaign UUCP: {ihnp4,seismo,pur-ee,convex}!uiucdcs!uicsrd!mcdaniel ARPANET: mcdaniel%uicsrd@a.cs.uiuc.edu CSNET: mcdaniel%uicsrd@uiuc.csnet BITNET: mcdaniel@uicsrd.csrd.uiuc.edu