From 86ae94462e7a8a6ee87303fb558ac8c90349797d Mon Sep 17 00:00:00 2001
From: Benoit Steiner <benoit.steiner.goog@gmail.com>
Date: Tue, 17 May 2016 14:06:15 -0700
Subject: [PATCH] #if defined(EIGEN_USE_NONBLOCKING_THREAD_POOL) is now #if
 !defined(EIGEN_USE_SIMPLE_THREAD_POOL): the non blocking thread pool is the
 default since it's more scalable, and one needs to request the old thread
 pool explicitly.

---
 unsupported/Eigen/CXX11/src/Tensor/TensorExecutor.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorExecutor.h b/unsupported/Eigen/CXX11/src/Tensor/TensorExecutor.h
index 4ffb41fdd..868398753 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorExecutor.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorExecutor.h
@@ -152,7 +152,7 @@ class TensorExecutor<Expression, ThreadPoolDevice, Vectorizable> {
     {
       const Index PacketSize = Vectorizable ? unpacket_traits<typename Evaluator::PacketReturnType>::size : 1;
       const Index size = array_prod(evaluator.dimensions());
-#if defined(EIGEN_USE_NONBLOCKING_THREAD_POOL) && defined(EIGEN_USE_COST_MODEL)
+#if !defined(EIGEN_USE_SIMPLE_THREAD_POOL) && defined(EIGEN_USE_COST_MODEL)
       device.parallelFor(size, evaluator.costPerCoeff(Vectorizable),
                          EvalRange<Evaluator, Index, Vectorizable>::alignBlockSize,
                          [&evaluator](Index first, Index last) {