diff --git a/Makefile.Defines b/Makefile.Defines
index 6effd7332..9e06d56ba 100644
--- a/Makefile.Defines
+++ b/Makefile.Defines
@@ -53,11 +53,11 @@ VTUNE_FLAGS = -g -O2 -qopt-report=5 -simd -shared-intel -qopenmp -debug inline-d
 
 IDEBUG = -O0 -init=snan,arrays  -nogen-interfaces -no-pie -no-ftz -fpe-all=0 -g -traceback -mp1 -fp-model strict -fpe0 -debug all -align all -pad -ip -prec-div -prec-sqrt -assume protect-parens -CB -no-wrap-margin
 STRICTREAL = -fp-model strict -prec-div -prec-sqrt -assume protect-parens 
-SIMDVEC = -simd -xhost -align all -assume contiguous_assumed_shape -vecabi=cmdtarget -fp-model no-except 
+SIMDVEC = -simd -xhost -align all -assume contiguous_assumed_shape -vecabi=cmdtarget -fp-model no-except -fma
 PAR = -qopenmp -parallel  
 HEAPARR = -heap-arrays 4194304 
 OPTREPORT = -qopt-report=5 
-IPRODUCTION = -no-wrap-margin -O3 $(PAR) $(SIMDVEC) #$(HEAPARR)
+IPRODUCTION = -no-wrap-margin -O3 -ipo -qopt-prefetch=0 -sox $(PAR) $(SIMDVEC) #$(HEAPARR)
 
 #gfortran flags
 GDEBUG = -g -Og -fbacktrace -fbounds-check -ffree-line-length-none
@@ -68,10 +68,11 @@ GPRODUCTION = -O2 -ffree-line-length-none $(GPAR)
 
 
 #FFLAGS  = $(IDEBUG) $(SIMDVEC) $(PAR)
-FFLAGS = $(IPRODUCTION) $(STRICTREAL) $(OPTREPORT) 
-FFASTFLAGS = $(IPRODUCTION) -fp-model fast $(OPTREPORT)
+#FFASTFLAGS  = $(IDEBUG) $(SIMDVEC) $(PAR)
+FFLAGS = $(IPRODUCTION) $(STRICTREAL)
+FFASTFLAGS = $(IPRODUCTION) -fp-model fast
 FORTRAN = ifort
-#AR     = xiar
+AR     = xiar
 
 #FORTRAN = gfortran
 #FFLAGS =  $(GDEBUG) $(GMEM) $(GPAR)