More generic PETSc install

Author: prj-

3rdparty/ff-petsc/Makefile

@@ -69,16 +69,16 @@ ifeq ($(FFCMAKE),no)
 PETSC_DOWNLOAD := $(PETSC_DOWNLOAD) --download-cmake
 endif
 PETSC_DOWNLOAD_C := $(PETSC_DOWNLOAD_C) --download-htool
-ifeq ($(FF_generic_petsc), yes)
-FLAGS_MTUNE := -mtune=generic
-endif
 unexport MAKEFLAGS
-COMMON_FLAGS := --with-debugging=0 COPTFLAGS='-O3 $(FLAGS_MTUNE)' CXXOPTFLAGS='-O3 $(FLAGS_MTUNE)' FOPTFLAGS='-O3 $(FLAGS_MTUNE)' --with-ssl=0 --with-x=0 --with-fortran-bindings=0 --with-hg=0 --with-c2html=0 --with-coverage=0 --with-syclc=0 --with-hipc=0 --with-cudac=0 --with-tau-perfstubs=0 --with-python=0 \
+COMMON_FLAGS := --with-debugging=0 --with-ssl=0 --with-x=0 --with-fortran-bindings=0 --with-hg=0 --with-c2html=0 --with-coverage=0 --with-syclc=0 --with-hipc=0 --with-cudac=0 --with-tau-perfstubs=0 --with-python=0 \
 		--download-slepc --download-hpddm
 
 ifneq ($(wildcard ~/.petsc_pkg),)
 COMMON_FLAGS += --with-packages-download-dir=~/.petsc_pkg
 endif
+ifeq ($(FF_generic_petsc), yes)
+COMMON_FLAGS += --with-avx512-kernels=0 CFLAGS+='-mtune=generic' CXXFLAGS+='-mtune=generic' FFLAGS+='-mtune=generic'
+endif
 
 ifeq ($(FC),)
 COMMON_FLAGS += --with-fc=0