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Jim, I bow to your experience. But what I've heard of, in the scientific community, is computers which harnesses THOUSANDS of parallel processors. AFAIK (and ICBW) this is done primarily on *nix. Again, AFAIK, this is also somewhat similar to Grid computing (but haven't had much time to follow this recent enhancement and/or buzzword...;-) I can look into the Blue Gene and ASCII White projects some more, later, if you're interested. jt | -----Original Message----- | From: midrange-l-admin@midrange.com | [mailto:midrange-l-admin@midrange.com]On Behalf Of Jim Damato | Sent: Friday, December 28, 2001 11:54 AM | To: 'midrange-l@midrange.com' | Subject: RE: Trivia: Processor MHz | Importance: High | | | > jt: | >I didn't intend to imply that Unix is MORE capable or better suited to | >parallel processing. Just that it's more widely implemented on the box. | | I've implemented a fair number of large and small Unix-based business | applications and I just don't see it. Maybe this type of multi-stream | technology is out there in the scientific community, but it's | definitely not | there for our segment of the market. Technology such as Oracle Parallel | Query can only do so much, and I don't see the business world using Unix | systems as a parallel processing powerhouse. Not to the degree | that one can | really say "That's one area the *nix (and maybe PASE?) just kicks the crap | out of OS/400". | | As a large retailer one of our persistent business concerns is concurrency | because of our high volumes of transactional data. With every app we | implement, Unix, NT, or AS/400, we find that parallel processing is not | built in to the software or inherently a part of the underlying | technology. | Modifications to facilitate multiple streams of data loads, or to | concurrently handle a single process have required major architecture | changes from the database and up. | | I would say that the iSeries and Unix have similar capabilities | for parallel | processing, and similar pitfalls and limitations. Most of the work that I | see on either platform equates to greater numbers of concurrent user | connections or reduced contention among concurrent single-stream | batch jobs. | | -Jim | | James P. Damato | Manager - Technical Administration | Dollar General Corporation | <mailto:jdamato@dollargeneral.com> | _______________________________________________ | This is the Midrange Systems Technical Discussion (MIDRANGE-L) | mailing list | To post a message email: MIDRANGE-L@midrange.com | To subscribe, unsubscribe, or change list options, | visit: http://lists.midrange.com/cgi-bin/listinfo/midrange-l | or email: MIDRANGE-L-request@midrange.com | Before posting, please take a moment to review the archives | at http://archive.midrange.com/midrange-l. |
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