From 54fc326097409e76d61d37db48fd1fb4748aecf6 Mon Sep 17 00:00:00 2001
From: Tom Deakin <tom.deakin@bristol.ac.uk>
Date: Fri, 27 Apr 2018 13:21:30 +0100
Subject: [PATCH] Add mcpu=native flag to GNU OpenMP builds

---
 CHANGELOG.md | 1 +
 OpenMP.make  | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index cc0d81a..3ef7f7d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@ All notable changes to this project will be documented in this file.
 ### Added
 - OpenACC flags to build for Volta.
 - Kokkos list CLI argument shows some information about which device will be used.
+- OpenMP GNU compiler now uses native target flag
 
 ### Changed
 - Update SYCL implementation to SYCL 1.2.1 interface.
diff --git a/OpenMP.make b/OpenMP.make
index 2028c46..18a71bf 100644
--- a/OpenMP.make
+++ b/OpenMP.make
@@ -28,7 +28,7 @@ COMPILER_CLANG = clang++
 COMPILER_XL = xlc++
 CXX = $(COMPILER_$(COMPILER))
 
-FLAGS_GNU = -O3 -std=c++11
+FLAGS_GNU = -O3 -std=c++11 -mcpu=native
 FLAGS_INTEL = -O3 -std=c++11 -xHOST -qopt-streaming-stores=always
 FLAGS_CRAY = -O3 -hstd=c++11
 FLAGS_CLANG = -O3 -std=c++11