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From: berryman-harry@CS.YALE.EDU (Harry Berryman)
Newsgroups: comp.parallel
Subject: Re: Intel IPSC/860 performance ?
Message-ID: <1991Jun25.124644.15669@hubcap.clemson.edu>
Date: 24 Jun 91 15:20:44 GMT
References: <1991Jun24.122022.19173@hubcap.clemson.edu>
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A good summary of communications costs can be found in the study by

Shahid Bokhari. It is "Communications Overhead on the Intel 
iPSC/860 Hypercube" ICASE Interim Report 10. Bokhari did extensive
studies of the multihop communication costs under a variety of
situations including contention for nodes (which made little difference)
and contention for edges (which made a lot of difference). 

Scott Berryman
Yale University Computer Science Department
and
ICASE/NASA Langley Research Center