Hi, On Thu, May 8, 2014 at 5:51 PM, Matthew Brett <matthew.brett@gmail.com> wrote:
Hi,
On Mon, Apr 28, 2014 at 3:29 PM, David Cournapeau <cournape@gmail.com> wrote:
On Sun, Apr 27, 2014 at 11:50 PM, Matthew Brett <matthew.brett@gmail.com> wrote:
Aha,
On Sun, Apr 27, 2014 at 3:19 PM, Matthew Brett <matthew.brett@gmail.com> wrote:
Hi,
On Sun, Apr 27, 2014 at 3:06 PM, Carl Kleffner <cmkleffner@gmail.com> wrote:
A possible option is to install the toolchain inside site-packages and to deploy it as PYPI wheel or wininst packages. The PATH to the toolchain could be extended during import of the package. But I have no idea, whats the best strategy to additionaly install ATLAS or other third party libraries.
Maybe we could provide ATLAS binaries for 32 / 64 bit as part of the devkit package. It sounds like OpenBLAS will be much easier to build, so we could start with ATLAS binaries as a default, expecting OpenBLAS to be built more often with the toolchain. I think that's how numpy binary installers are built at the moment - using old binary builds of ATLAS.
I'm happy to provide the builds of ATLAS - e.g. here:
I just found the official numpy binary builds of ATLAS:
https://github.com/numpy/vendor/tree/master/binaries
But - they are from an old version of ATLAS / Lapack, and only for 32-bit.
David - what say we update these to latest ATLAS stable?
Fine by me (not that you need my approval !).
How easy is it to build ATLAS targetting a specific CPU these days ? I think we need to at least support nosse and sse2 and above.
I'm getting crashes trying to build SSE2-only ATLAS on 32-bits, I think Clint will have some time to help out next week.
Clint spent an hour on the phone working through the 32-bit build. There was a nasty gcc bug revealed by some oddness to the input flags. Fixed now: https://nipy.bic.berkeley.edu/scipy_installers/atlas_builds/ Configure flags needed for 32-bit: config_opts="-b 32 -Si archdef 0 -A 13 -V 384 \ --with-netlib-lapack-tarfile=${lapack_tarfile} \ -Fa al '-mincoming-stack-boundary=2 -mfpmath=sse -msse2'" For 64-bit: config_opts="-b 64 -V 384 --with-netlib-lapack-tarfile=${lapack_tarfile}" Cheers, Matthew