David Kirkby schrieb:
> On Oct 13, 9:28 am, Christian Hilberg <hilb...@unix-ag.org> wrote:
> > Hi,
> > I'm experiencing instruction set issues with the SAGe Linux i686
> > binary tarball from
> [...]
> This issue comes up many times. I wonder if it would be preferable to
> not include the sse2 instruction set. I don't know how much of an
> impact on performance that might have. Wolfram Research had a similar
[...]
> Another option for Sage might be to compile the two bits of code twice
> - one with SSE and once without. Then when Sage is run for the first
> time, it automatically copies over the right binaries. It would
> obviously make the binary distibution larger, but that might be a
> small price to pay for not having the issue of producign a 'fat' and a
> 'think' build, and getting numerous reports of this error.
Apart from thinking about how to fix this issue, methinks a hint
placed somewhere near the download area would be very helpful. If I
would have gotten a notice about which instruction sets the cpu needs
to support for running the precompiled binary, I could have downloaded
and compiled the source tarball right away. What's more, as stated in
my error report, deleting parts of the binaries and re-running 'make'
did not work on my Athlon-XP either (somewhere along the line
configure gets wrong values), which means I would have ended up
compiling from source anyway.
Compiling from source was time-consuming and CPU-burning, but
otherwise just straightforward on my Debian box, no glithes
whatsoever. Reducing the frequency with which the SSE-issues are
reported could be done e.g. by naming the binary tarballs accordingly
and placing a note on the download page stating the CPU requirements
to run the precompiled package.
Just 2 pence,
Christian
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