Index: LMDZ6/trunk/arch/arch-X64_JEANZAY.fcm
===================================================================
--- LMDZ6/trunk/arch/arch-X64_JEANZAY.fcm	(revision 3588)
+++ LMDZ6/trunk/arch/arch-X64_JEANZAY.fcm	(revision 3589)
@@ -7,8 +7,8 @@
 %FPP_FLAGS           -P -traditional
 %FPP_DEF             NC_DOUBLE FFT_MKL
-%BASE_FFLAGS         -i4 -r8 -auto -align all
-%PROD_FFLAGS         -O3 -axAVX,SSE4.2 -fp-model fast=2
-%DEV_FFLAGS          -fp-model strict -p -g -O2 -traceback -fp-stack-check
-%DEBUG_FFLAGS        -fp-model strict -p -g -O0 -traceback -fp-stack-check -ftrapuv -ftrapuv -check bounds,noarg_temp_created,pointers,stack,uninit -debug full -init=arrays -init=snan
+%BASE_FFLAGS         -i4 -r8 -auto -align all -fp-model strict
+%PROD_FFLAGS         -O3 -xHost -qopt-zmm-usage=high
+%DEV_FFLAGS          -p -g -O2 -traceback -fp-stack-check
+%DEBUG_FFLAGS        -p -g -O0 -traceback -fp-stack-check -ftrapuv -check bounds,noarg_temp_created,pointers,stack,uninit -debug full -init=arrays -init=snan
 %MPI_FFLAGS
 %OMP_FFLAGS          -qopenmp