tree 8377caf022131b81870143f088d00ca0194e6a39
parent 2d785d65f446859ac120d27df6531d21573b60f4
author Sameer Agarwal <sameeragarwal@google.com> 1379102043 -0700
committer Sameer Agarwal <sameeragarwal@google.com> 1379102043 -0700

Add IterationSummary::gradient_norm.

Iteration summary now reports the 2-norm of the gradient also.

Change-Id: I1ed7f1456ee4f546c9b42423d7a4ec3079ec078f