commit 0e2743e24d013b25109396cfa0d8d0f1e8e84964
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

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

jni/Android.mk

diff --git a/jni/Android.mk b/jni/Android.mk
index 49cad30..1c6f045 100644
--- a/jni/Android.mk
+++ b/jni/Android.mk
@@ -117,6 +117,7 @@
                    $(CERES_SRC_PATH)/block_jacobian_writer.cc \
                    $(CERES_SRC_PATH)/block_jacobi_preconditioner.cc \
                    $(CERES_SRC_PATH)/block_random_access_dense_matrix.cc \
+                   $(CERES_SRC_PATH)/block_random_access_diagonal_matrix.cc \
                    $(CERES_SRC_PATH)/block_random_access_matrix.cc \
                    $(CERES_SRC_PATH)/block_random_access_sparse_matrix.cc \
                    $(CERES_SRC_PATH)/block_sparse_matrix.cc \