Alpha beowulf: True64 or Linux?
bahnsen at theo-physik.uni-kiel.de
Mon Feb 5 05:30:20 EST 2001
as far as the NAG fl90 Library is concerned the following versions are
available for Compaq Alpha:
FNDAU04DB Release 4 / Compaq Alpha UNIX / Compaq compiler
FNDAU03D9 Release 3 / Compaq Alpha UNIX / NAGWare compiler
FNDAL03D9 Release 3 / Compaq Alpha Linux / NAGWare compiler
The combination Compaq Alpha Linux + (free/cheap) Compaq compiler is
missing, and NAG said they would not release one in the near future.
Take this pro Tru64 or con NAG, as you like.
> - are there performance differences?
> - software availability? I heard that Compaq's development suite (compilers,
> debuggers, etc.) is available on both platforms. What about scientific
> libraries, etc.
> - my guess is that both OS are fully 64bit OS (files > 2GB, etc.).
> How about the compilers? Can I have 128bit precision for floating point
> - if we buy 4 processor smp boxes: How is the support under either OS?
> (OpenMP, etc.)
> - How good is the smp performance (i.e., is it worth it in comparison to
> - what other pros and cons?
Dipl.-Phys. Robert Bahnsen Institut f. Theoretische Physik und Astrophysik
CAU Kiel, Leibnizstr. 15, D-24098 Kiel, Germany
Fon: +49 (0)431 8804112 Fax: +49 (0)431 8804094
E-Mail: bahnsen at tp.cau.de www.theo-physik.uni-kiel.de/~bahnsen/index.html
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