Standalone now uses O2 optimization level instead of O3. Also removed -march=native since this causes issues if the program is compiled on a different architecture than it is run on. Since we do not do heavy arithmetic on the host side and the host code is not performance-critical part of the code, -march-native is not very useful anyways

src/core/CMakeLists.txt

@@ -12,8 +12,7 @@ set(CUDA_ARCH_FLAGS -gencode arch=compute_37,code=sm_37
                     -gencode arch=compute_61,code=sm_61
                     -lineinfo
                     -ftz=true # Flush denormalized floats to zero
-                    -std=c++11
-                    --compiler-options -march=native) # Native host machine code
+                    -std=c++11)
                     #--maxrregcount=255
                     # -Xptxas -dlcm=ca opt-in to cache all global loads to L1/texture cache
                     # =cg to opt out