[Octave-bug-tracker] [bug #58795] Tests for ode15i and ode15s fail for Octave 32bit on Windows

[Markus Mützel]

Follow-up Comment #3, bug #58795 (project octave):

Thanks for re-posting the lost message. (I mis-spelled "verbatim" in the
closing tag of the first block.)


Do you have a source where MS specifies that Windows 7 requires a CPU with
SSE2?

On their system requirements page [1], they don't specify any specific CPU
instruction set.

The only thing I could find with a quick Google search is [2] where they
recommend to update to a CPU supporting the SSE2 instruction set as a
workaround for a known issue. (How bold is that?!)
But since Windows 7 is no longer supported by MS and an update for that issue
is very unlikely, I guess that workaround might be a requirement now...


Anyway, any half-decent CPU that was bought in the last 20 years most likely
supports SSE2. So it is probably ok to have that as a requirement for Octave
on Windows.
It would probably solve (some of) the precision bugs for which I haven't
opened a bug report yet. Not sure about this bug here though.
If it turns out that that would fix this bug (or others), we should probably
ask on the mailing list about raising the minimum hardware requirements.


We would probably need to compile Octave itself and most (or all) of its
dependencies with these switches. Is that also what you think?


[1]:
https://support.microsoft.com/en-us/help/10737/windows-7-system-requirements
[2]:
https://support.microsoft.com/en-us/help/4103718/windows-7-update-kb4103718

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