From f05fb449b845c5246da6817bb5300030b852318f Mon Sep 17 00:00:00 2001
From: Benoit Steiner <benoit.steiner.goog@gmail.com>
Date: Wed, 9 Mar 2016 15:27:45 -0800
Subject: [PATCH] Avoid unnecessary conversion from 32bit int to 64bit unsigned
 int

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

diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorReduction.h b/unsupported/Eigen/CXX11/src/Tensor/TensorReduction.h
index 2d7fb80d4..3f1864fa7 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorReduction.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorReduction.h
@@ -247,7 +247,7 @@ struct FullReducer<Self, Op, ThreadPoolDevice, false> {
       *output = reducer.finalize(reducer.initialize());
       return;
     }
-    const int num_threads = device.numThreads();
+    const std::size_t num_threads = device.numThreads();
     if (num_threads == 1) {
       *output = InnerMostDimReducer<Self, Op, false>::reduce(self, 0, num_coeffs, reducer);
       return;