diff --git a/src/Rules.LXcray.mk b/src/Rules.LXcray.mk
index d90c8a9e91b37651c8bb5141dd8cc1ef1c819136..7aa474a21a57506f9a29b1155b64f53d10ba0105 100644
--- a/src/Rules.LXcray.mk
+++ b/src/Rules.LXcray.mk
@@ -9,7 +9,7 @@
 ##########################################################
 #OBJDIR_PATH=/home/escj/azertyuiopqsdfghjklm/wxcvbn/azertyuiopqsdfghjklmwxcvbn
 #
-OPT_BASE   =  -hpic -em -ef
+OPT_BASE   =  -hpic -emf
 OPT_PERF0  =  -O0 -g
 OPT_PERF1  =  -O1 -hflex_mp=intolerant -Ofp0 -hnoomp -hcpu=istanbul -hfp0 -K trap=fp
 OPT_PERF2  =  -O2 -hflex_mp=intolerant -Ofp0 -hnoomp
@@ -56,33 +56,33 @@ endif
 #
 ifeq "$(OPTLEVEL)" "OPENACC"
 CPPFLAGS    += -DMNH_OPENACC
-OPT       = $(OPT_BASE) $(OPT_OPENACC) $(OPT_PERF2)
-OPT0      = $(OPT_BASE) $(OPT_OPENACC) $(OPT_PERF0)
-OPT_NOCB  = $(OPT_BASE) $(OPT_OPENACC) $(OPT_PERF2)
+OPT       = $(OPT_BASE) $(OPT_PERF2) $(OPT_OPENACC)
+OPT0      = $(OPT_BASE) $(OPT_PERF0) $(OPT_OPENACC)
+OPT_NOCB  = $(OPT_BASE) $(OPT_PERF2) $(OPT_OPENACC)
 #CXXFLAGS = -acc -Kieee -Mnofma $(OPT_OPENACC)
 #OBJS_REPROD= spll_mode_sum_ll.o
-#$(OBJS_REPROD) : OPT = $(OPT_BASE) $(OPT_OPENACC) $(OPT_PERF2) -Mvect=nosimd -Minfo=all -g
+#$(OBJS_REPROD) : OPT = $(OPT_BASE) $(OPT_PERF2) $(OPT_OPENACC) -Mvect=nosimd -Minfo=all -g
 #OBJS_O1_OPENACC= spll_ice4_tendencies.o spll_turb_ver_thermo_flux.o
-#$(OBJS_O1_OPENACC) : OPT = $(OPT_BASE) $(OPT_OPENACC) $(OPT_PERF1)
+#$(OBJS_O1_OPENACC) : OPT = $(OPT_BASE) $(OPT_PERF1) $(OPT_OPENACC)
 endif
 #
 ifeq "$(OPTLEVEL)" "OPENACCDEFONLY"
 CPPFLAGS    += -DMNH_OPENACC -D_FAKEOPENACC
-OPT       = $(OPT_BASE) $(OPT_NOOPENACC) $(OPT_PERF2)
-OPT0      = $(OPT_BASE) $(OPT_NOOPENACC) $(OPT_PERF0)
-OPT_NOCB  = $(OPT_BASE) $(OPT_NOOPENACC) $(OPT_PERF2)
+OPT       = $(OPT_BASE) $(OPT_PERF2) $(OPT_NOOPENACC)
+OPT0      = $(OPT_BASE) $(OPT_PERF0) $(OPT_NOOPENACC)
+OPT_NOCB  = $(OPT_BASE) $(OPT_PERF2) $(OPT_NOOPENACC)
 #CXXFLAGS = -Kieee -Mnofma $(OPT_NOOPENACC)
 #OBJS_REPROD= spll_mode_sum_ll.o
-#$(OBJS_REPROD) : OPT = $(OPT_BASE) $(OPT_NOOPENACC) $(OPT_PERF2) -Mvect=nosimd -Minfo=all -g
+#$(OBJS_REPROD) : OPT = $(OPT_BASE) $(OPT_PERF2) $(OPT_NOOPENACC) -Mvect=nosimd -Minfo=all -g
 endif
 #
 ifeq "$(OPTLEVEL)" "NOOPENACC"
-OPT       = $(OPT_BASE) $(OPT_NOOPENACC) $(OPT_PERF2)
-OPT0      = $(OPT_BASE) $(OPT_NOOPENACC) $(OPT_PERF0)
-OPT_NOCB  = $(OPT_BASE) $(OPT_NOOPENACC) $(OPT_PERF2)
+OPT       = $(OPT_BASE) $(OPT_PERF2) $(OPT_NOOPENACC)
+OPT0      = $(OPT_BASE) $(OPT_PERF0) $(OPT_NOOPENACC)
+OPT_NOCB  = $(OPT_BASE) $(OPT_PERF2) $(OPT_NOOPENACC)
 #CXXFLAGS = -Kieee -Mnofma $(OPT_NOOPENACC)
 #OBJS_REPROD= spll_mode_sum_ll.o
-#$(OBJS_REPROD) : OPT = $(OPT_BASE) $(OPT_NOOPENACC) $(OPT_PERF2) -Mvect=nosimd -Minfo=all -g
+#$(OBJS_REPROD) : OPT = $(OPT_BASE) $(OPT_PERF2) $(OPT_NOOPENACC) -Mvect=nosimd -Minfo=all -g
 endif
 #
 ifeq "$(OPTLEVEL)" "O2NOVEC"
@@ -103,7 +103,7 @@ endif
 #
 #
 FC = ftn
-FCFLAGS = -em -ef
+FCFLAGS = -emf
 CC=cc
 export FC CC FCFLAGS
 F90 = ftn
@@ -138,7 +138,7 @@ endif
 # BITREP flags
 #
 #if MNH_BITREP exists => compile with the BITREP library
-MNH_BITREP = YES
+MNH_BITREP = NO
 ifeq "$(MNH_BITREP)" "YES"
 CPPFLAGS_MNH += -DMNH_BITREP
 endif
@@ -169,8 +169,8 @@ MNH_COMPRESS=yes
 #
 MNH_GRIBAPI=no
 #
-NETCDF_SUPPFLAGS='-em -ef'
-ECCODES_FFLAGS='-em -ef'
+NETCDF_SUPPFLAGS='-emf'
+ECCODES_FFLAGS='-emf'
 ##########################################################
 #                                                        #
 # Source of MESONH PACKAGE  Distribution                 #