From 2d3737a133b6f1208849cd8580badba4ff152a4d Mon Sep 17 00:00:00 2001
From: Peter Boyle <paboyle@ph.ed.ac.uk>
Date: Fri, 30 Jun 2017 10:15:59 +0100
Subject: [PATCH] O3, KNL

---
 configure.ac | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index f7284d48..8175e8b0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,7 +27,7 @@ AX_GXX_VERSION
 AC_DEFINE_UNQUOTED([GXX_VERSION],["$GXX_VERSION"],
       [version of g++ that will compile the code])
 
-CXXFLAGS="-g $CXXFLAGS"
+CXXFLAGS="-O3 $CXXFLAGS"
 
 
 ############### Checks for typedefs, structures, and compiler characteristics
@@ -241,6 +241,7 @@ case ${ax_cv_cxx_compiler_vendor} in
         SIMD_FLAGS='';;
       KNL)
         AC_DEFINE([AVX512],[1],[AVX512 intrinsics])
+        AC_DEFINE([KNL],[1],[Knights landing processor])
         SIMD_FLAGS='-march=knl';;
       GEN)
         AC_DEFINE([GEN],[1],[generic vector code])
@@ -276,6 +277,7 @@ case ${ax_cv_cxx_compiler_vendor} in
         SIMD_FLAGS='';;
       KNL)
         AC_DEFINE([AVX512],[1],[AVX512 intrinsics for Knights Landing])
+        AC_DEFINE([KNL],[1],[Knights landing processor])
         SIMD_FLAGS='-xmic-avx512';;
       GEN)
         AC_DEFINE([GEN],[1],[generic vector code])