From 1957e6fb4dd823f94251e7378abef03cba05f545 Mon Sep 17 00:00:00 2001
From: Rory Mitchell <r.a.mitchell.nz@gmail.com>
Date: Fri, 23 Dec 2016 21:18:56 +1300
Subject: [PATCH] Fix cmake build for linux. Update GPU benchmarks. (#1904)

---
 CMakeLists.txt               | 2 +-
 plugin/updater_gpu/README.md | 9 +--------
 2 files changed, 2 insertions(+), 9 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 355b060b7..f1318ddc6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,7 +5,7 @@ find_package(OpenMP)
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
 
 if(NOT MSVC)
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC -O3 -funroll-loops -msse2")
 endif()
 
 
diff --git a/plugin/updater_gpu/README.md b/plugin/updater_gpu/README.md
index 9a31869aa..1bc7d982c 100644
--- a/plugin/updater_gpu/README.md
+++ b/plugin/updater_gpu/README.md
@@ -2,14 +2,7 @@
 
 ## Benchmarks
 
-Time for 500 boosting iterations in seconds. 
-
-Dataset | Instances | Features | i7-6700K | Titan X (pascal) | Speedup
---- | --- | --- | --- | --- | --- 
-Yahoo LTR | 473,134 | 700 | 3738 | 507 | 7.37
-Higgs | 10,500,000 | 28 | 31352 | 4173 | 7.51
-Bosch | 1,183,747 | 968 | 9460 | 1009 | 9.38
-
+[See here](http://dmlc.ml/2016/12/14/GPU-accelerated-xgboost.html) for performance benchmarks
 
 ## Usage
 Specify the updater parameter as 'grow_gpu'.