On Wed, Sep 13, 2017 at 08:33:08PM +0000, PICCA Frederic-Emmanuel wrote:
> Hello 
> 
> > Unfortunately it does not look that simple. OpenBLAS is optimized for z13, 
> > but
> > our s390x port is supposed to support all the z systems (see [1]).
> 
> what about asking for a a z13-support package to the isa-support (source
> package) maintainer. This way it could be possible to upload an optimise
> vesion of openblas which can install on recent enought s390x machines.

I am not totally convinced by this solution. If we adopt it, somebody who
installs e.g. octave on an old system-z machine will be hit by a failure in the
dpkg installation process, which needs manual intervention. This is likely to
generate problems in automated installers (and also confuse and annoy system
admins).

> the question will be then : does the buildd support these instructions ?

I leave that to the s390 porters to answer.

-- 
⢀⣴⠾⠻⢶⣦⠀  Sébastien Villemot
⣾⠁⢠⠒⠀⣿⡁  Debian Developer
⢿⡄⠘⠷⠚⠋⠀  http://sebastien.villemot.name
⠈⠳⣄⠀⠀⠀⠀  http://www.debian.org

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