Test for target offloading capability (dbc6ef2d) · Commits · Giacomo Mulas / NP_TMcode

build/Makefile.in

+1 −0

Original line number	Diff line number	Diff line
		@@ -445,6 +445,7 @@ NMEDIT = @NMEDIT@
		NVTXFLAGS = @NVTXFLAGS@
		OBJDUMP = @OBJDUMP@
		OBJEXT = @OBJEXT@
		OFFLOADFLAGS = @OFFLOADFLAGS@
		OMPFLAGS = @OMPFLAGS@
		OTOOL = @OTOOL@
		OTOOL64 = @OTOOL64@

build/configure

+106 −3

Original line number	Diff line number	Diff line
		@@ -664,6 +664,7 @@ MAGMAFLAGS
		LAPACKLDFLAGS
		LAPACKFLAGS
		OMPFLAGS
		OFFLOADFLAGS
		HDF5_LDFLAGS
		HDF5_LIB
		HDF5_INCLUDE
		@@ -810,6 +811,7 @@ with_aix_soname
		with_gnu_ld
		with_sysroot
		enable_libtool_lock
		enable_offload
		enable_openmp
		with_lapack
		with_magma
		@@ -1472,6 +1474,8 @@ Optional Features:
		--enable-fast-install[=PKGS]
		optimize for fast installation [default=yes]
		--disable-libtool-lock avoid locking (might break parallel builds)
		--enable-offload enable target offloading (requires g++ version >=
		13) [default=auto]
		--enable-openmp enable OpneMP multi-threading [default=yes]
		--enable-nvtx use NVTX profiling [default=no]

		@@ -24883,18 +24887,117 @@ esac
		fi

		# Configure the optional features
		# Check whether --enable-offload was given.
		if test ${enable_offload+y}
		then :
		enableval=$enable_offload;
		if test "x$enableval" != "xno"; then

		cat > np_test_offload.cpp <<EOF
		#include <omp.h>
		#pragma omp requires unified_shared_memory

		#pragma omp begin declare target device_type(any)
		void fill_with_ones(int *array) {
		#pragma omp target teams distribute parallel for
		for (int i = 0; i < 1000; i++) {
		for (int j = 0; j < 1000; j++) {
		array[(1000 * i) + j] = 1;
		}
		}
		}
		#pragma omp end declare target
		int main(int argc, char** argv) {
		int *numbers = new int[1000000]();
		fill_with_ones(numbers);
		delete[] numbers;
		return 0;
		}
		EOF
		$CXX -fcf-protection=check -foffload=default -foffload=nvptx-none="-O3 -ggdb -fopt-info -lm -latomic -mgomp" -fopenmp -c np_test_offload.cpp > /dev/null #2>&1
		export CXX_SUPPORTS_OFFLOAD=$?
		rm np_test_offload.cpp
		if test "x$CXX_SUPPORTS_OFFLOAD" = "x0"; then
		rm np_test_offload.o
		fi


		if test "x$CXX_SUPPORTS_OFFLOAD" = "x0"; then
		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: Enabling offload." >&5
		printf "%s\n" "$as_me: Enabling offload." >&6;}
		OFFLOADFLAGS="-fcf-protection=check -foffload=default -foffload=nvptx-none=\"-O3 -ggdb -fopt-info -lm -latomic -mgomp\" -fopenmp"

		else
		as_fn_error $? "Target offload was requested, but it is not supported!" "$LINENO" 5
		fi
		else
		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: Disabling offload." >&5
		printf "%s\n" "$as_me: Disabling offload." >&6;}
		OFFLOADFLAGS=""

		fi

		else case e in #(
		e)

		cat > np_test_offload.cpp <<EOF
		#include <omp.h>
		#pragma omp requires unified_shared_memory

		#pragma omp begin declare target device_type(any)
		void fill_with_ones(int *array) {
		#pragma omp target teams distribute parallel for
		for (int i = 0; i < 1000; i++) {
		for (int j = 0; j < 1000; j++) {
		array[(1000 * i) + j] = 1;
		}
		}
		}
		#pragma omp end declare target
		int main(int argc, char** argv) {
		int *numbers = new int[1000000]();
		fill_with_ones(numbers);
		delete[] numbers;
		return 0;
		}
		EOF
		$CXX -fcf-protection=check -foffload=default -foffload=nvptx-none="-O3 -ggdb -fopt-info -lm -latomic -mgomp" -fopenmp -c np_test_offload.cpp > /dev/null #2>&1
		export CXX_SUPPORTS_OFFLOAD=$?
		rm np_test_offload.cpp
		if test "x$CXX_SUPPORTS_OFFLOAD" = "x0"; then
		rm np_test_offload.o
		fi


		if test "x$CXX_SUPPORTS_OFFLOAD" = "x0"; then
		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: Enabling offload." >&5
		printf "%s\n" "$as_me: Enabling offload." >&6;}
		OFFLOADFLAGS="-fcf-protection=check -foffload=default -foffload=nvptx-none=\"-O3 -ggdb -fopt-info -lm -latomic -mgomp\" -fopenmp"

		else
		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: Disabling offload." >&5
		printf "%s\n" "$as_me: Disabling offload." >&6;}
		OFFLOADFLAGS=""

		fi

		;;
		esac
		fi


		# Check whether --enable-openmp was given.
		if test ${enable_openmp+y}
		then :
		enableval=$enable_openmp;
		if test "x$enableval" != "xno"; then
		OMPFLAGS="-fopenmp"
		OMPFLAGS="-DUSE_OPENMP -fopenmp"

		fi

		else case e in #(
		e)
		OMPFLAGS="-fopenmp"
		OMPFLAGS="-DUSE_OPENMP -fopenmp"


		;;
		@@ -25175,7 +25278,7 @@ esac
		fi


		CXXFLAGS="$CLANGFLAGS -O3 -ggdb $USER_INCLUDE -I$HDF5_INCLUDE $OMPFLAGS $MPIFLAGS $LAPACKFLAGS $MAGMAFLAGS $NVTXFLAGS"
		CXXFLAGS="$CLANGFLAGS -O3 -ggdb $OFFLOADFLAGS $USER_INCLUDE -I$HDF5_INCLUDE $OMPFLAGS $MPIFLAGS $LAPACKFLAGS $MAGMAFLAGS $NVTXFLAGS"
		SUBDIRS="cluster libnptm sphere testing trapping"

		# Generate the output

build/configure.ac

+65 −3

Original line number	Diff line number	Diff line
		@@ -93,6 +93,39 @@ EOF
		fi
		]
		)

		m4_define(
		[M4_TEST_OFFLOAD],
		[
		cat > np_test_offload.cpp <<EOF
		#include <omp.h>
		#pragma omp requires unified_shared_memory

		#pragma omp begin declare target device_type(any)
		void fill_with_ones(int *array) {
		#pragma omp target teams distribute parallel for
		for (int i = 0; i < 1000; i++) {
		for (int j = 0; j < 1000; j++) {
		array[[(1000 * i) + j]] = 1;
		}
		}
		}
		#pragma omp end declare target
		int main(int argc, char** argv) {
		int *numbers = new int[[1000000]]();
		fill_with_ones(numbers);
		delete[[]] numbers;
		return 0;
		}
		EOF
		$CXX -fcf-protection=check -foffload=default -foffload=nvptx-none="-O3 -ggdb -fopt-info -lm -latomic -mgomp" -fopenmp -c np_test_offload.cpp > /dev/null #2>&1
		export CXX_SUPPORTS_OFFLOAD=$?
		rm np_test_offload.cpp
		if test "x$CXX_SUPPORTS_OFFLOAD" = "x0"; then
		rm np_test_offload.o
		fi
		]
		)
		# END CAPABILITY TESTING MACROS

		# autoconf setup initialization
		@@ -219,16 +252,45 @@ AS_IF(
		)

		# Configure the optional features
		AC_ARG_ENABLE(
		[offload],
		[AS_HELP_STRING([--enable-offload], [enable target offloading (requires g++ version >= 13) [default=auto]])],
		[
		if test "x$enableval" != "xno"; then
		M4_TEST_OFFLOAD
		if test "x$CXX_SUPPORTS_OFFLOAD" = "x0"; then
		AC_MSG_NOTICE([Enabling offload.])
		AC_SUBST([OFFLOADFLAGS], ["-fcf-protection=check -foffload=default -foffload=nvptx-none=\"-O3 -ggdb -fopt-info -lm -latomic -mgomp\" -fopenmp"])
		else
		AC_MSG_ERROR([Target offload was requested, but it is not supported!])
		fi
		else
		AC_MSG_NOTICE([Disabling offload.])
		AC_SUBST([OFFLOADFLAGS], [""])
		fi
		],
		[
		M4_TEST_OFFLOAD
		if test "x$CXX_SUPPORTS_OFFLOAD" = "x0"; then
		AC_MSG_NOTICE([Enabling offload.])
		AC_SUBST([OFFLOADFLAGS], ["-fcf-protection=check -foffload=default -foffload=nvptx-none=\"-O3 -ggdb -fopt-info -lm -latomic -mgomp\" -fopenmp"])
		else
		AC_MSG_NOTICE([Disabling offload.])
		AC_SUBST([OFFLOADFLAGS], [""])
		fi
		]
		)

		AC_ARG_ENABLE(
		[openmp],
		[AS_HELP_STRING([--enable-openmp], [enable OpneMP multi-threading [default=yes]])],
		[
		if test "x$enableval" != "xno"; then
		AC_SUBST([OMPFLAGS], ["-fopenmp"])
		AC_SUBST([OMPFLAGS], ["-DUSE_OPENMP -fopenmp"])
		fi
		],
		[
		AC_SUBST([OMPFLAGS], ["-fopenmp"])
		AC_SUBST([OMPFLAGS], ["-DUSE_OPENMP -fopenmp"])
		]
		)

		@@ -346,7 +408,7 @@ AC_ARG_WITH(
		]
		)

		CXXFLAGS="$CLANGFLAGS -O3 -ggdb $USER_INCLUDE -I$HDF5_INCLUDE $OMPFLAGS $MPIFLAGS $LAPACKFLAGS $MAGMAFLAGS $NVTXFLAGS"
		CXXFLAGS="$CLANGFLAGS -O3 -ggdb $OFFLOADFLAGS $USER_INCLUDE -I$HDF5_INCLUDE $OMPFLAGS $MPIFLAGS $LAPACKFLAGS $MAGMAFLAGS $NVTXFLAGS"
		SUBDIRS="cluster libnptm sphere testing trapping"

		# Generate the output