0e2743e24d013b25109396cfa0d8d0f1e8e84964 - ceres-solver - Git at Google

commit: 0e2743e24d013b25109396cfa0d8d0f1e8e84964
[log] [tgz]
author: Sameer Agarwal <sameeragarwal@google.com>
Wed Oct 23 14:51:07 2013 -0700
committer: Keir Mierle <mierle@gmail.com>
Thu Oct 24 19:40:38 2013 +0000
tree: ddb1436da6ee053cd63cb1ecd7b1c2af32f1e7a6
parent: 6a2bcaa1d55d38bc10d043f1458657caac2be7a7 [diff]

Add BlockRandomAccessDiagonalMatrix.

This class is used in the SchurJacobiPreconditioner for
storing the preconditioner matrix. Using it speeds up
the computation of the preconditioner by ~15% due to
the elimination of a hash table lookup.

Change-Id: Iba2b34aad0d9eb9bcb7f6e6fad16aa416aac0d2a

8 files changed

tree: ddb1436da6ee053cd63cb1ecd7b1c2af32f1e7a6