Make gemm fully dependent on eigen

[Yangqing]

Currently under caffe/util/math_functions.cpp, gemm is called using cblas_gemm, which then relies on atlas to carry out gemm. This may be suboptimal since we will not be able to use multithreaded gemm. Possibly we could make the boost-eigen branch to fully use eigen and remove the atlas dependency?

For earlier discussions please see issue #80 .

[kloudkl]

Working on this.

[Yangqing]

Thanks a lot for your contribution :)

Yangqing

On Fri, Feb 7, 2014 at 4:28 PM, kloudkl notifications@github.com wrote:

Working on this.

Reply to this email directly or view it on GitHubhttps://github.com//issues/84#issuecomment-34521883
.

[shelhamer]

Consider removing Eigen in favor of OpenBLAS + vector templates as suggested by @Yangqing in #81 (comment).

[sguada]

I'm wonder if we could incorporate the findings of @kloudkl regarding OpenBlas #81 #80, #85 as @Yangqing #81 (comment) suggested into BVLC/Master to allow the Caffe::CPU mode be faster.

[Yangqing]

Closed due to new proposals at #97.