Thread View: mod.computers.apollo
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Started by KROWITZ
Mon, 13 Jan 1986 15:52
(none)
Author: KROWITZ
Date: Mon, 13 Jan 1986 15:52
Date: Mon, 13 Jan 1986 15:52
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I've been away for awhile and haven't been reading my mail until recently. Thanks for the Fortran speed comparisons between the DN330 and the Sun 3. In the meantime a 330 upgrade board showed up on the doorstep of another group in our ringnet, and I've taken the liberty of running a Whetstone program on some of our nodes. For the record: machine/OS single precision double precision ---------- ---------------- ---------------- DN320/SR9.0.020 308 190 DN330/SR9.0.020 714 658 DN460/SR9.0.020 689 425 DN660/SR9.0.020 723 446 VAX 11/782/VMS 4.2 1230 794 VAX 11/780/BSD 4.2 (UNIX F77) 399 364 Alliant FX/1 3953 3289 Note that an 11/782 is a dual -cpu 11/780 system in a master/slave configuration. It is the same speed as an 11/780 for a single job. The Alliant FX/1 is being marketed by Apollo along with its big brother the FX/8. We have a very early production model bought directly from Alliant with Rev. 1 processor boards. Rev. 2 boards are claimed to be 20% faster. For comparison, the numbers for a Sun 3 (from David Hough's message) are: Sun 3 860 790 Which is about 20% faster than the DN330. Note that the DN330 is faster than any of the other Apollo machines for double precision arithmetic (as is the Sun 3) -- an important feature for us engineering/scientific number grinders. The DN330 (2MB) is $15,900 (list price). Anyone out there have the price on a comparable Sun 3 (ie. 2MB diskless node without compiler licences)? As it was noted earlier, the DN660 (which used to be Apollo's fastest cpu) is a *lot* more expensive at a list price of $52,500 (but then it's an older technology machine, 4MB, and a color screen and graphics processor so it's bound to be more expensive). As a parting note: Anybody got a copy of the Linpack benchmarks (or the Livermore loops) that they can spare? -- David Krowitz ( DAVID@MIT-MC.ARPA or KROWITZ@MIT-MARIE@MIT-MC.ARPA )
(none)
Author: Randy Frank
Date: Tue, 14 Jan 1986 14:56
Date: Tue, 14 Jan 1986 14:56
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One obvious difference between the Apollo 330 and the Sun 3 is that Apollo is still shipping 12 MHz cpus while Sun is shipping 16 MHz parts. We have been putting pressure on Apollo to do something about this, without much luck. Others who are concerned about this should do the same. -------
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