mkh6317@rigel.tamu.edu (HOWARD, MATTHEW KENDALL) (06/27/90)
Greetings; Earlier today I posted a message regarding Absoft's MacFortran II compiler. I was hasty and wrong about somethings. The prospect of a 2X speed increase in scientific computations had me excited to the point of carelessness. I was under the misconception that Absoft's previous MPW based FORTRAN compiler did not have "MacFortran" as part of its name (it does) and took this as evidence that MacFortran-II was a replacement for the MacFortran and MacFortran/020 compilers, which, of course, do have the string "MacFortran" as part of their product name. Then I blundered on and concluded (wrongly) that since MacFortan-II had the name and was MPW based that the non-MPW based MacFortran and MacFortran/020 were abandoned products. Faulty logic based on bad data. GIGO eh? :-). Sorry. ---- Now on a related issue. Absoft reports that MacFortran II attains 3871 K Whetstones/sec on a MacIIci running a single precision Whetstone. They report 1463 K Whets/sec for Language Systems FORTRAN V2.0. I get 1662 K Whets/sec with LSF2.0 on a IIci with all the tricks I know, b/w, big system cache, no inits. Is there anyone out there who can run this test (SWHET.F) on a IIci with a cache card. How about on a IIfx? Has anyone been able to experiment with MacFortran-II or is it too new? A 2x speedup just might bring a problem I have in mind into the "doable" range on my IIci. Matt