added cuda examples

examples_cuda/common.mk

@@ -0,0 +1,96 @@
+
+TASK_CXX=../tasksys.cpp
+TASK_LIB=-lpthread
+TASK_OBJ=objs/tasksys.o
+
+CXX=clang++
+CXXFLAGS+=-Iobjs/ -O2
+CC=clang
+CCFLAGS+=-Iobjs/ -O2
+
+LIBS=-lm $(TASK_LIB) -lstdc++
+ISPC=ispc
+ISPC_FLAGS+=-O2
+ISPC_HEADER=objs/$(ISPC_SRC:.ispc=_ispc.h)
+
+ARCH:=$(shell uname -m | sed -e s/x86_64/x86/ -e s/i686/x86/ -e s/arm.*/arm/ -e s/sa110/arm/)
+
+ifeq ($(ARCH),x86)
+  ISPC_OBJS=$(addprefix objs/, $(ISPC_SRC:.ispc=)_ispc.o $(ISPC_SRC:.ispc=)_ispc_sse2.o \
+	$(ISPC_SRC:.ispc=)_ispc_sse4.o $(ISPC_SRC:.ispc=)_ispc_avx.o)
+  ISPC_TARGETS=$(ISPC_IA_TARGETS)
+  ARCH_BIT:=$(shell getconf LONG_BIT)
+  ifeq ($(ARCH_BIT),32)
+    ISPC_FLAGS += --arch=x86
+    CXXFLAGS += -m32
+    CCFLAGS += -m32
+  else
+    ISPC_FLAGS += --arch=x86-64
+    CXXFLAGS += -m64
+    CCFLAGS += -m64
+  endif
+else ifeq ($(ARCH),arm)
+  ISPC_OBJS=$(addprefix objs/, $(ISPC_SRC:.ispc=_ispc.o))
+  ISPC_TARGETS=$(ISPC_ARM_TARGETS)
+else
+  $(error Unknown architecture $(ARCH) from uname -m)
+endif
+
+CPP_OBJS=$(addprefix objs/, $(CPP_SRC:.cpp=.o))
+CC_OBJS=$(addprefix objs/, $(CC_SRC:.c=.o))
+OBJS=$(CPP_OBJS) $(CC_OBJS) $(TASK_OBJ) $(ISPC_OBJS)
+
+default: $(EXAMPLE)
+
+all: $(EXAMPLE) $(EXAMPLE)-sse4 $(EXAMPLE)-generic16 $(EXAMPLE)-scalar
+
+.PHONY: dirs clean
+
+dirs:
+	/bin/mkdir -p objs/
+
+objs/%.cpp objs/%.o objs/%.h: dirs
+
+clean:
+	/bin/rm -rf objs *~ $(EXAMPLE) $(EXAMPLE)-sse4 $(EXAMPLE)-generic16 ref test
+
+$(EXAMPLE): $(OBJS)
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LIBS)
+
+objs/%.o: %.cpp dirs $(ISPC_HEADER)
+	$(CXX) $< $(CXXFLAGS) -c -o $@
+
+objs/%.o: %.c dirs $(ISPC_HEADER)
+	$(CC) $< $(CCFLAGS) -c -o $@
+
+objs/%.o: ../%.cpp dirs
+	$(CXX) $< $(CXXFLAGS) -c -o $@
+
+objs/$(EXAMPLE).o: objs/$(EXAMPLE)_ispc.h
+
+objs/%_ispc.h objs/%_ispc.o objs/%_ispc_sse2.o objs/%_ispc_sse4.o objs/%_ispc_avx.o: %.ispc
+	$(ISPC) $(ISPC_FLAGS) --target=$(ISPC_TARGETS) $< -o objs/$*_ispc.o -h objs/$*_ispc.h
+
+objs/$(ISPC_SRC:.ispc=)_sse4.cpp: $(ISPC_SRC)
+	$(ISPC) $(ISPC_FLAGS) $< -o $@ --target=generic-4 --emit-c++ --c++-include-file=sse4.h
+
+objs/$(ISPC_SRC:.ispc=)_sse4.o: objs/$(ISPC_SRC:.ispc=)_sse4.cpp
+	$(CXX) -I../intrinsics -msse4.2 $< $(CXXFLAGS) -c -o $@
+
+$(EXAMPLE)-sse4: $(CPP_OBJS) objs/$(ISPC_SRC:.ispc=)_sse4.o
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LIBS)
+
+objs/$(ISPC_SRC:.ispc=)_generic16.cpp: $(ISPC_SRC)
+	$(ISPC) $(ISPC_FLAGS) $< -o $@ --target=generic-16 --emit-c++ --c++-include-file=generic-16.h
+
+objs/$(ISPC_SRC:.ispc=)_generic16.o: objs/$(ISPC_SRC:.ispc=)_generic16.cpp
+	$(CXX) -I../intrinsics $< $(CXXFLAGS) -c -o $@
+
+$(EXAMPLE)-generic16: $(CPP_OBJS) objs/$(ISPC_SRC:.ispc=)_generic16.o
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LIBS)
+
+objs/$(ISPC_SRC:.ispc=)_scalar.o: $(ISPC_SRC)
+	$(ISPC) $(ISPC_FLAGS) $< -o $@ --target=generic-1
+
+$(EXAMPLE)-scalar: $(CPP_OBJS) objs/$(ISPC_SRC:.ispc=)_scalar.o
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LIBS)