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To: Mike Milde who wrote (10494)	7/17/1998 11:10:00 AM
From: Michael L. Voorhees	of 64860

Thank god for the sunshine from SUNW in sunny California with all the cloudiness in Redmond. Can you imagine being stuck as a developer (and user as well) with the stuff from Redmond? I need some help. I develop high-end numerical analysis software. The JINI software is exactly what I need (however this will be in the future). I am presently using MPI (distributed non-symmetric processing) for a parallel implementation of GMRES (which is a large non-symmetric matrix solver). Anyway, I'm an independent consulting scientist and I need some computing horsepower from some high-powered unix servers or workstations or STARFIRES. I'm presently using just two pentium-class computers. Is there a business or entity that rents (or preferably gives under beta testing, etc.) time over the net to scale-up my application? Some of my runs are lasting 2-3 weeks on the two MPI'd Pentium-class machines (which are running unix). By the way, what happened to time-sharing? I can't find any. Regards

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To: Michael L. Voorhees who wrote (10495)	7/17/1998 1:13:00 PM
From: Robert	of 64860

Jini is not the technology that you need. The main problem you will have will be the size of your matrices, which I assume to be large enough that copying them around would not be a sensible thing to be doing. This means that the threads of execution should all have access to the same memory. To the best of my knowledge, Jini copies all of the objects instance variables and sends them across the network to the object pools for service, not something to be done with large matrices. However, locally within a thread, its instance variables can be shared with subthreads, so rewriting your problem as a threaded application under Java is certainly feasible, but then you will have to deal with asynchronous coordination of the threads. You are probably better sticking with MPI and letting it solve these problems for you, which it was designed to do.

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To: Robert who wrote (10498)	7/17/1998 1:27:00 PM
From: Michael L. Voorhees	of 64860

Robert: JINI seems to fit the bill in that code can be shipped transparently over the InterNet to machines as opposed to MPI. I stated "future" as I assume that MPI could very well be part of future APIs. As far as storage requirements, they are not the main problem, I have a "granularized" version of GMRES which I have developed that can actually segregate storage (if necessary). My main need is MFLOPS so MPI fits the bill but JINI (in the future) would fit it better with the proper API as I would not have to get MPI software and applications running on all machines. This I believe to be a promising use of JINI, i.e. transparent implementation of MPI bandwidth without MPI implementation explicitly being implemented on InterNet networked machines. The potential for scientific consultants is immense, i.e. they can technically compete with the computing horsepower that are in existence at even the largest institutions. In fact, if properly implemented JINI scientific computing could make most of these facilities obsolete as sharing or computing resources would be seamlessly integrated to even the smallest computing devices (including the storage of matrices which are usually generated by the application and are not user input and could thus be stored by larger machines on the network).

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To: fff who wrote (10491)	7/17/1998 2:50:00 PM
From: paul	of 64860

very upbeat, Ed Zander and Scott McNealy were very loose and relaxed. Called it a year of records - record gross margins, inventory turns, revenue, shipments, backlog etc, etc. highlighted the best server line from 10k - 1,000K. Record workstations shipments from $2500 up. new E250 - $10,000 server offering price/performance far beyond Wintel. Also consolidation in the intel merced space with Toshiba, Fujitsu, Siemens, NCR, Amdahl as Solaris licensees. What i found more interesting was the wins outside of the traditional workstation/server space. Some highlights Storage - big wins at Honda, Bank of America Mail Software - Southwestern Bell, Pacific Bell PJava licencees at Sony, TCI, Scientific Atlanta Zander went through how Sun was the driving force in the Internet - and e business Excite, Infoseek, Cnet, Earthlink, Inktomi, uunet, CDNow, on and on. Scott jumped in and mentioned HotMail and WebTV from Microsoft which uses Sun. Also mentioned Amazon.com - sounds like a new big win. Also spent some time on JINI and Java.

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