Switched to the latest version of Eigen that performs much better on machines

with many cpu cores

For example, the wall time for the following tutorial went down from 13m35 to 5m27:
bazel run -c opt --copt=-mavx tensorflow/examples/tutorials/word2vec/word2vec_basic
Change: 122462177

9 files changed, 11 insertions, 11 deletions

diff --git a/eigen.BUILD b/eigen.BUILD
index 49fe45b610..a657493380 100644
--- a/eigen.BUILD
+++ b/eigen.BUILD
@@ -1,6 +1,6 @@
 package(default_visibility = ["//visibility:public"])
 
-archive_dir = "eigen-eigen-aaa010b0dd40"
+archive_dir = "eigen-eigen-a5e9085a94e8"
 
 cc_library(
     name = "eigen",
diff --git a/tensorflow/contrib/cmake/external/eigen.cmake b/tensorflow/contrib/cmake/external/eigen.cmake
index 4dcc491148..42fa768663 100644
--- a/tensorflow/contrib/cmake/external/eigen.cmake
+++ b/tensorflow/contrib/cmake/external/eigen.cmake
@@ -7,7 +7,7 @@
 
 include (ExternalProject)
 
-set(eigen_archive_hash "aaa010b0dd40")
+set(eigen_archive_hash "a5e9085a94e8")
 
 set(eigen_INCLUDE_DIRS
     ${CMAKE_CURRENT_BINARY_DIR}
@@ -16,7 +16,7 @@ set(eigen_INCLUDE_DIRS
     ${tensorflow_source_dir}/third_party/eigen3
 )
 set(eigen_URL https://bitbucket.org/eigen/eigen/get/${eigen_archive_hash}.tar.gz)
-set(eigen_HASH SHA256=948cccc08e3ce922e890fe39916b087d6651297cd7422a04524dbf44e372ed9a)
+set(eigen_HASH SHA256=967126237829c7c87abb6cd0e13a5a235b0377d51575522c390b9486aed13e71)
 set(eigen_BUILD ${CMAKE_CURRENT_BINARY_DIR}/eigen/src/eigen)
 set(eigen_INSTALL ${CMAKE_CURRENT_BINARY_DIR}/eigen/install)
 
diff --git a/tensorflow/workspace.bzl b/tensorflow/workspace.bzl
index 726ad62995..40b2017c75 100644
--- a/tensorflow/workspace.bzl
+++ b/tensorflow/workspace.bzl
@@ -13,8 +13,8 @@ def tf_workspace(path_prefix = "", tf_repo_name = ""):
 
   native.new_http_archive(
     name = "eigen_archive",
-    url = "https://bitbucket.org/eigen/eigen/get/aaa010b0dd40.tar.gz",
-    sha256 = "948cccc08e3ce922e890fe39916b087d6651297cd7422a04524dbf44e372ed9a",
+    url = "https://bitbucket.org/eigen/eigen/get/a5e9085a94e8.tar.gz",
+    sha256 = "967126237829c7c87abb6cd0e13a5a235b0377d51575522c390b9486aed13e71",
     build_file = path_prefix + "eigen.BUILD",
   )
 
diff --git a/third_party/eigen3/Eigen/Cholesky b/third_party/eigen3/Eigen/Cholesky
index cd7e919012..ca26331670 100644
--- a/third_party/eigen3/Eigen/Cholesky
+++ b/third_party/eigen3/Eigen/Cholesky
@@ -1 +1 @@
-#include "eigen-eigen-aaa010b0dd40/Eigen/Cholesky"
+#include "eigen-eigen-a5e9085a94e8/Eigen/Cholesky"
diff --git a/third_party/eigen3/Eigen/Core b/third_party/eigen3/Eigen/Core
index 7b84cd305c..1e6ac595cc 100644
--- a/third_party/eigen3/Eigen/Core
+++ b/third_party/eigen3/Eigen/Core
@@ -1 +1 @@
-#include "eigen-eigen-aaa010b0dd40/Eigen/Core"
+#include "eigen-eigen-a5e9085a94e8/Eigen/Core"
diff --git a/third_party/eigen3/Eigen/Eigenvalues b/third_party/eigen3/Eigen/Eigenvalues
index 61d2a509e9..480d9079b0 100644
--- a/third_party/eigen3/Eigen/Eigenvalues
+++ b/third_party/eigen3/Eigen/Eigenvalues
@@ -1 +1 @@
-#include "eigen-eigen-aaa010b0dd40/Eigen/Eigenvalues"
+#include "eigen-eigen-a5e9085a94e8/Eigen/Eigenvalues"
diff --git a/third_party/eigen3/Eigen/LU b/third_party/eigen3/Eigen/LU
index dca255bf26..0e82ebb8fc 100644
--- a/third_party/eigen3/Eigen/LU
+++ b/third_party/eigen3/Eigen/LU
@@ -1 +1 @@
-#include "eigen-eigen-aaa010b0dd40/Eigen/LU"
+#include "eigen-eigen-a5e9085a94e8/Eigen/LU"
diff --git a/third_party/eigen3/Eigen/QR b/third_party/eigen3/Eigen/QR
index c40c4e8015..13562bca3c 100644
--- a/third_party/eigen3/Eigen/QR
+++ b/third_party/eigen3/Eigen/QR
@@ -1 +1 @@
-#include "eigen-eigen-aaa010b0dd40/Eigen/QR"
+#include "eigen-eigen-a5e9085a94e8/Eigen/QR"
diff --git a/third_party/eigen3/unsupported/Eigen/CXX11/Tensor b/third_party/eigen3/unsupported/Eigen/CXX11/Tensor
index f4f61a74d3..a9b263f5ae 100644
--- a/third_party/eigen3/unsupported/Eigen/CXX11/Tensor
+++ b/third_party/eigen3/unsupported/Eigen/CXX11/Tensor
@@ -1 +1 @@
-#include "eigen-eigen-aaa010b0dd40/unsupported/Eigen/CXX11/Tensor"
+#include "eigen-eigen-a5e9085a94e8/unsupported/Eigen/CXX11/Tensor"