Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!apple!agate!ucbvax!RICHTER.MIT.EDU!krowitz
From: krowitz@RICHTER.MIT.EDU (David Krowitz)
Newsgroups: comp.sys.apollo
Subject: Re:  Snakebytes (long -- and poisonous?).
Message-ID: <9103271552.AA03831@richter.mit.edu>
Date: 27 Mar 91 15:52:18 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
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The performance numbers listed in your posting are misleading.
The 720 will *not* achieve 17 Mflops on the double precision
Linpack and/or single precision Linpack benchmarks with the
Fortran compilers that are being shipped with the machines. I
have tested a 720 using Jack Dongarra's fortran code, and 
the machine runs a 13.5 Mflops. The 17 Mflop speed is claimed
by HP for compilers that will ship in June according to the
fine print on the product release notes we've received from HP.
Adjust your expectations accordingly.

The integer performance (MIPS, Dhrystones) is achievable
with the current compilers. The numbers listed for the 720
are in the range I measured during my tests.


 -- David Krowitz

krowitz@richter.mit.edu   (18.83.0.109)
krowitz%richter.mit.edu@eddie.mit.edu
krowitz%richter.mit.edu@mitvma.bitnet
(in order of decreasing preference)