psABI micro-archs support

SCRAM/GMake/Makefile.bigedm.rules

@@ -118,7 +118,7 @@ $($(1)_objdir)/bigobj/$(3)/$(1).$(BIGLIB_OBJEXT): $(subst $($(1)_objdir)/,$($(1)
 	$$(call big_obj,$(2),$(1),$$^,$(SCRAMSTORENAME_OBJS),$3)
 endef
 define TargetBigPlugin
-$(1)_$(3)_BUILD_ENV:=CMSSW_CPU_TYPE=$(patsubst scram_%,%$3) &&
+$(1)_$(3)_BUILD_ENV:=CMSSW_CPU_TYPE=$(patsubst scram_%,%,$3) &&
 $(1)_objs_$3:=$(foreach o,$($(1)_objs),$(eval n:=$(basename $(notdir $o)))\
                   $(if $(strip $(filter $3,$($(n)_LOC_FLAGS_TARGETS))),\
                        $(subst /$(n).$(BIGLIB_OBJEXT),/$3/$(n).$(BIGLIB_OBJEXT),$o),\

SCRAM/GMake/Makefile.rules

@@ -1297,7 +1297,7 @@ endef
 #safename,path,safepath,scriptstore,scripts,libstore,logprodstore,plugintype
 define Library
 $(1)_plugintype:=$(8)
-ifeq ($(SCRAM_MULTI_TARGET),1)
+ifeq ($(strip $(SCRAM_MULTI_TARGET)$(filter alpaka/cuda alpaka/rocm,$($(1)_PRODUCT_TYPE))),1)
 ifeq ($(strip $(USER_TARGETS_ALL)),1)
 $(1)_LOC_FLAGS_TARGETS:=$(call GetCompilerData,$1,SCRAM_TARGETS)
 else ifeq ($(strip $($(1)_LOC_FLAGS_TARGETS)),1)

SCRAM/hooks/runtime/90-cmssw-vectorize

@@ -13,57 +13,95 @@ elif  [ "${SCRAM_TARGET}" = "" ] ; then
 fi
 #No need to overirde LD_LIBRARY_PATH if SCRAM_TARGET is not set or set to "default"
 if [ "${SCRAM_TARGET}" = "" ] || [ "${SCRAM_TARGET}" = "default" ] ; then exit 0 ; fi
+BUILD_ARCHS="$(${SCRAM} tool info self | grep '^SCRAM_TARGETS+=' | sed 's|.*=||')"
+[ "${BUILD_ARCHS}" = "" ] && exit 0
 
-nocona=""
-core2="nocona ${nocona}"
-nehalem="core2 ${core2}"
-westmere="nehalem ${nehalem}"
-bonnell="core2 ${core2}"
-silvermont="westmere bonnell ${westmere} ${bonnell}"
-sandybridge="westmere ${westmere}"
-ivybridge="sandybridge ${sandybridge}"
-haswell="bonnell ivybridge ${bonnell} ${ivybridge}"
-skylake="silvermont haswell ${silvermont} ${haswell}"
-skylake_avx512="skylake ${skylake}"
-cascadelake="skylake-avx512 ${skylake_avx512}"
-cannonlake="skylake ${skylake}"
-icelake_client="cascadelake cannonlake ${cascadelake} ${cannonlake}"
-icelake_server="icelake-client ${icelake_client}"
-tigerlake="icelake-server ${icelake_server}"
-goldmont="silvermont ${silvermont}"
-cooperlake="cascadelake ${cascadelake}"
-sapphirerapids="cooperlake ${cooperlake}"
-broadwell="silvermont haswell ${silvermont} ${haswell}"
-goldmont_plus="goldmont ${goldmont}"
-knl="silvermont haswell ${silvermont} ${haswell}"
-knm="knl ${knl}"
-alderlake="skylake ${skylake}"
-tremont="goldmont-plus ${goldmont_plus}"
+PSABI_ARCH_PREFIX="x86-64-v"
+SCRAM_NON_PSABI_ARCHS=$(echo ${BUILD_ARCHS} | tr ' ' '\n' | grep -v "${PSABI_ARCH_PREFIX}")
+SCRAM_PSABI_ARCHS=$(echo     ${BUILD_ARCHS} | tr ' ' '\n' | grep    "${PSABI_ARCH_PREFIX}")
 
-LD_ENV=$(${SCRAM} tool info gcc-cxxcompiler | grep '^LD_LIBRARY_PATH='):${LD_LIBRARY_PATH}
-PATH_ENV=$(${SCRAM} tool info gcc-cxxcompiler | grep '^PATH='):${PATH}
-eval "export $LD_ENV; export $PATH_ENV"
-NATIVE_ARCH=$(gcc -march=native -Q --help=target | grep -- '^ *-march=' | sed 's|.*=\s*||')
-SUPPORTED_ARCHS="$(${SCRAM} tool info self | grep '^SCRAM_TARGETS+=' | sed 's|.*=||')"
-[ "${NATIVE_ARCH}" = "" ] && exit 0
-[ "${SUPPORTED_ARCHS}" = "" ] && exit 0
+#Micro-archs compatibility: https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html
+NATIVE_ARCH=""
+if [ "${SCRAM_NON_PSABI_ARCHS}" != "" ] ; then
+  nocona=""
+  core2="nocona ${nocona}"
+  nehalem="core2 ${core2}"
+  westmere="nehalem ${nehalem}"
+  bonnell="core2 ${core2}"
+  silvermont="westmere bonnell ${westmere} ${bonnell}"
+  sandybridge="westmere ${westmere}"
+  ivybridge="sandybridge ${sandybridge}"
+  haswell="bonnell ivybridge ${bonnell} ${ivybridge}"
+  skylake="silvermont haswell ${silvermont} ${haswell}"
+  skylake_avx512="skylake ${skylake}"
+  cascadelake="skylake-avx512 ${skylake_avx512}"
+  cannonlake="skylake ${skylake}"
+  icelake_client="cascadelake cannonlake ${cascadelake} ${cannonlake}"
+  icelake_server="icelake-client ${icelake_client}"
+  tigerlake="icelake-server ${icelake_server}"
+  goldmont="silvermont ${silvermont}"
+  cooperlake="cascadelake ${cascadelake}"
+  sapphirerapids="cooperlake ${cooperlake}"
+  broadwell="silvermont haswell ${silvermont} ${haswell}"
+  goldmont_plus="goldmont ${goldmont}"
+  knl="silvermont haswell ${silvermont} ${haswell}"
+  knm="knl ${knl}"
+  alderlake="skylake ${skylake}"
+  tremont="goldmont-plus ${goldmont_plus}"
+
+  LD_ENV=$(${SCRAM} tool info gcc-cxxcompiler | grep '^LD_LIBRARY_PATH='):${LD_LIBRARY_PATH}
+  PATH_ENV=$(${SCRAM} tool info gcc-cxxcompiler | grep '^PATH='):${PATH}
+  eval "export $LD_ENV; export $PATH_ENV"
+  NATIVE_ARCH=$(gcc -march=native -Q --help=target | grep -- '^ *-march=' | sed 's|.*=\s*||')
+  [ "${NATIVE_ARCH}" = "" ] || NATIVE_ARCHS="$(eval echo \$$(echo ${NATIVE_ARCH} | tr - _ ))"
+fi
+
+#psABI micro architectures support
+PSABI_ARCHS=""
+if [ "${SCRAM_PSABI_ARCHS}" != "" ] ; then
+  PSABI_ARCHS=$(ld.so --help | grep -E " ${PSABI_ARCH_PREFIX}[0-9]+ " | grep -i supported | sed 's|^ *||;s| .*||' | tr '\n' ' ')
+fi
+
+#Use default target if can not find native arch or supported psABI micro-archs
+[ "${NATIVE_ARCH}${PSABI_ARCHS}" = "" ] && exit 0
+
+SEL_TARGETS=""
+if [ "${SCRAM_TARGET}" = "auto" ] ; then
+  [ "${PSABI_ARCHS}" = "" ] || SEL_TARGETS="${PSABI_ARCHS}"
+  #Prefer native arch over any other micro-arch
+  [ "${NATIVE_ARCH}" = "" ] || SEL_TARGETS="${NATIVE_ARCH} ${SEL_TARGETS} ${NATIVE_ARCHS}"
+else
+  if [ $(echo ${SCRAM_TARGET} | grep "${PSABI_ARCH_PREFIX}[1-9]" | wc -l) -gt 0 ] ; then
+    if [ "${PSABI_ARCHS}" != "" ] ; then
+      psABI_NUM=$(echo ${SCRAM_TARGET} | sed "s|${PSABI_ARCH_PREFIX}||")
+      while [ $psABI_NUM -gt 1 ] ; do
+        SEL_TARGETS="${SEL_TARGETS} ${PSABI_ARCH_PREFIX}${psABI_NUM}"
+        let psABI_NUM=${psABI_NUM}-1
+      done
+    fi
+  elif [ "${NATIVE_ARCH}" != "" ] ; then
+    SEL_TARGETS="${NATIVE_ARCH} ${NATIVE_ARCHS}"
+  fi
+fi
 
-SEL_TARGET="${SCRAM_TARGET}"
-if [ "${SCRAM_TARGET}" = "auto" ] ; then SEL_TARGET="${NATIVE_ARCH}" ; fi
 MATCHED_TARGET=""
-for t in ${SEL_TARGET} $(eval echo \$$(echo ${SEL_TARGET} | tr - _ )) ; do
-  if [ $(echo " ${SUPPORTED_ARCHS} " | grep " ${t} " | wc -l) -eq 1 ] ; then
+for t in ${SEL_TARGETS}; do
+  if [ $(echo " ${BUILD_ARCHS} " | grep " ${t} " | wc -l) -eq 1 ] ; then
     if [ "${SCRAM_TARGET}" != "auto" ] ; then
       if [ "${SCRAM_TARGET}" != "${t}" ] ; then
-        echo "WARNING: Target ${SCRAM_TARGET} requested but best match found is ${t} from the available supported targets '${SUPPORTED_ARCHS}'." 1>&2
+        echo "WARNING: Target ${SCRAM_TARGET} requested but best match found is ${t} from the available supported targets '${BUILD_ARCHS}'." 1>&2
       fi
     fi
     MATCHED_TARGET=$t
     break
   fi
 done
 if [ "${MATCHED_TARGET}" = "" ] ; then
-  echo "WARNING: Native target ${NATIVE_ARCH} does not match any of the supported targets '${SUPPORTED_ARCHS}'. Using default target." 1>&2
+  if [ "${SCRAM_TARGET}" = "auto" ] ; then
+    echo "WARNING: System micro-arch(s) native:'${NATIVE_ARCH}', psABI:'${PSABI_ARCHS}' do not match any of the cmssw supported micro-archs '${BUILD_ARCHS}'. Using default target." 1>&2
+  else
+    echo "WARNING: Requested arch '${SCRAM_TARGET}' does not match any of the cmssw targets '${BUILD_ARCHS}'. Using default target." 1>&2
+  fi
   exit 0
 fi