Bug#905842: please consider uploading eigen3 3.3.5

[Lumin]

On Sat, Aug 18, 2018 at 01:28:18PM +0200, Andreas Tille wrote:
> Hi,
> 
> On Fri, Aug 10, 2018 at 01:24:16PM +0000, Lumin wrote:
> > 
> > So I'd suggest that upload the 3.3.5 version with the above ppc64el fix.
> 
> I commited new upstream source to Git but there are quilt patches that
> do not apply cleanly.  I have no time to investigate this more deeply
> and left a note in d/changelog about this work item to be done.  Sorry
> for not beeing more helpful - feel free to take over

Thanks Andreas, Anton is working on newer eigen3, see #906126

importing 3.3.5 is not enough for building tensorflow. I need not
only the following function signature in
unsupported/Eigen/CXX11/src/ThreadPool/NonBlockingThreadPool.h

   25   ThreadPoolTempl(int num_threads, bool allow_spinning,
   26                              Environment env = Environment())

But bitbucket is very hard to use and I struggled for a long while
with it but I still cannot find out which commit introduced this change.


@Anton:

I think I can make a differential between eigen 3.3.5 and the eigen
snapshot that tensorflow used, and patch the eigen library when building
tensorflow. Since eigen3 is a header only library, this is not hard to
achive.

I'm able to build libtensorflow.so and the python interface library
with the patch series https://github.com/tensorflow/tensorflow/pull/21699 ,
embedded eigen3 and embedded double-precision.
However the python package still misses some python dependencies.

> 
>       Andreas.
> 
> -- 
> http://fam-tille.de