[Numpy-discussion] Re: Summer of Code 2006

Ryan Krauss ryanlists at gmail.com
Sat Apr 15 10:58:17 CDT 2006


As I understand the summer of code, we can basically get a full time
student (who gets paid $4500 for the summer) at no cost to us, as long
as someone is willing to coach and define the project.  (NumPy/SciPy
would actually get $500 from Google).

So, I think it would be great if we could define some projects and see
what happens.  (I am trying to graduate this summer, so maybe I should
shut up if I can't help much).

Ryan

On 4/15/06, Travis Oliphant <oliphant.travis at ieee.org> wrote:
> Albert Strasheim wrote:
> > Hello all
> >
> >
> > Let me start by saying that the build system works fine for what I think is
> > the default case, i.e. building NumPy on Linux with preinstalled LAPACK and
> > BLAS. However, as soon as you vary any of those parameters, things get
> > interesting.
> >
> It also builds fine with mingw and pre-installed ATLAS (I do it all the
> time).   It also builds fine with no-installed ATLAS (or LAPACK or BLAS)
> with mingw32 and Linux.  It also builds on Mac OS X.   It also builds on
> Solaris, AIX, and Cygwin.   Work also went in recently to make sure it
> builds with a Visual Studio Compiler (the one Tim Hochberg was using...)
>
> So, I think it's a bit unfair to say that varying from only a Linux
> build causes "things to get interesting".   Definitely there are
> configurations that can require a specialized site.cfg file and it can
> be difficult if you build with a compiler that was not used to build
> Python itself.    But, it's not a one-platform build system.   I just
> want that to be clear.
>
> Documentation on the site.cfg file could be more prominent, of course,
> and this was aided recently by the addition of an example file to the
> source tree.
>
> The expert on the build system is Pearu Peterson.    He has been very
> responsive to suggested fixes and problems that people have
> experienced.   Robert Kern, David Cooke, and I also have some
> familiarity with the build system enough to assist from time to time.
>
> All help is greatly appreciated, however, as I know you can come up with
> configurations that do cause things to "get interesting."   The more
> configurations that we get tested and working, the better off we will
> be.   The more people who understand the build system well enough to
> help fix it, the better off we'll be as well.   So,  I definitely don't
> want to discourage any ideas you have on improving the build system.
>
> Thanks for being willing to dive in and help.
>
> -Travis
>
>
>
>
> > I've spent the past couple of days trying to build NumPy on Windows with
> > ATLAS and CLAPACK with MinGW and Visual Studio .NET 2003 and VS 8. I don't
> > know if it's just me, but this seems to be very hard. This could probably be
> > partly attributed to the build systems of these libraries and to the lack of
> > documentation, but I've also run into problems with NumPy build scripts.
> >
> > For example, the inclusion of the gcc library in the list of libraries when
> > building Fortran code with MinGW causes the build to break. Also, building
> > FLAPACK from source causes the build to fail (too many open files).
> >
> > While these errors on their own aren't particularly serious, I think it
> > would be helpful to set up an automated system to check that builds of the
> > various configurations NumPy supports can actually be done. There are
> > probably a few million ways to build NumPy, but it would be nice if we could
> > make sure that the N most common configurations always work, and provide
> > documentation for "trying this at home."
> >
> > I also think it would be useful to set up a system that performs regular
> > builds of the latest revision from the SVN repository. I think anyone
> > attempting this is going to run into a few issues with the build scripts,
> > especially when trying to build on multiple platforms.
> >
> > Things I would like to get right, which I think are much harder than they
> > need to be (feel free to disagree):
> >
> > - Windows builds in general
> > - Visual Studio .NET 2003 builds
> > - Visual C++ Toolkit 2003 builds
> > - Visual Studio 2005 builds
> > - Builds with ATLAS and CLAPACK
> >
> > The reason I'm interested in the Microsoft compilers is that they have many
> > features to help us make sure that the code is correct, both at compile time
> > and at run time.
> >
> > Any comments? Anybody building on Windows that finds the process to be
> > completely painless?
> >
> > Regards,
> >
> > Albert
> >
> >
> >
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