Changed compiler flags

LutzGross · Jul 27, 2021 · 137168e · 137168e
1 parent b97e6c8
commit 137168e
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/SConstruct b/SConstruct
@@ -294,7 +294,7 @@ elif cc_name[:3] == 'g++':
     cc_flags += " -Wno-unknown-pragmas -Wno-sign-compare -Wno-system-headers -Wno-long-long -Wno-strict-aliasing "
     cc_flags += " -Wno-unused-function  -Wno-narrowing"
     cc_flags += " -Wno-stringop-truncation -Wno-deprecated-declarations --param=max-vartrack-size=100000000"
-    cc_optim     = "-O3"
+    cc_optim     = "-O2 -march=native"
     #max-vartrack-size: avoid vartrack limit being exceeded with escriptcpp.cpp
     cc_debug     = "-g3 -O0  -DDOASSERT -DDOPROF -DBOUNDS_CHECK -DSLOWSHARECHECK --param=max-vartrack-size=100000000"
     #Removed because new netcdf doesn't seem to like it
@@ -322,7 +322,7 @@ elif cc_name == 'clang++':
     cc_flags    += "-Wno-unused-private-field -Wno-unknown-pragmas "
     if env['trilinos'] is True:
       cc_flags += "-Wno-unused-variable -Wno-exceptions -Wno-deprecated-declarations"
-    cc_optim     = "-O3"
+    cc_optim     = "-O2 -march=native"
     cc_debug     = "-ggdb3 -O0 -fdiagnostics-fixit-info -pedantic "
     cc_debug    += "-DDOASSERT -DDOPROF -DBOUNDS_CHECK -DSLOWSHARECHECK "
     omp_flags    = "-fopenmp"