diff --git a/examples/portable/aobench/Makefile_knc b/examples/portable/aobench/Makefile_knc
new file mode 100644
index 00000000..fe889a26
--- /dev/null
+++ b/examples/portable/aobench/Makefile_knc
@@ -0,0 +1,7 @@
+EXAMPLE=ao
+CXX_SRC=ao.cpp 
+ISPC_SRC=ao.ispc
+ISPC_INTRINSICS=../../intrinsics/knc-i1x16.h
+ISPC_TARGET=generic-16
+
+include ../common_knc.mk
diff --git a/examples/portable/aobench/Makefile_gpu b/examples/portable/aobench/Makefile_ptx
similarity index 85%
rename from examples/portable/aobench/Makefile_gpu
rename to examples/portable/aobench/Makefile_ptx
index db3afc57..0b961fba 100644
--- a/examples/portable/aobench/Makefile_gpu
+++ b/examples/portable/aobench/Makefile_ptx
@@ -8,7 +8,7 @@ PTXCC_REGMAX=64
 LLVM_GPU=1
 NVVM_GPU=1
 
-include ../common_gpu.mk
+include ../common_ptx.mk
 
 
 
diff --git a/examples/portable/common_knc.mk b/examples/portable/common_knc.mk
new file mode 100644
index 00000000..3f3a7930
--- /dev/null
+++ b/examples/portable/common_knc.mk
@@ -0,0 +1,51 @@
+TASK_CXX=../../tasksys.cpp ../../util/ispc_malloc.cpp
+TASK_OBJ=objs_knc/tasksys.o objs_knc/ispc_malloc.o
+TASK_LIB=-openmp
+
+CXX=icc -openmp -mmic
+CXXFLAGS+=-Iobjs_knc/ -O2 -I../../ -I../../util  -I./
+CXXFLAGS+=  -DISPC_USE_OMP
+CC=icc -openmp -mmic
+CCFLAGS+= -Iobjs_knc/ -O2 -I../../ -I../../util -I./
+CXXFLAGS+=-DISPC_USE_OMP
+
+LD=icc -mmic -openmp
+
+LIBS=-lm $(TASK_LIB) -lstdc++
+ISPC=ispc
+ISPC_FLAGS+=-O2
+ISPC_FLAGS+= --target=$(ISPC_TARGET) --c++-include-file=$(ISPC_INTRINSICS)
+
+ISPC_HEADERS=$(ISPC_SRC:%.ispc=objs_knc/%_ispc.h)
+ISPC_OBJ=$(ISPC_SRC:%.ispc=objs_knc/%_ispc.o)
+CXX_OBJ=$(CXX_SRC:%.cpp=objs_knc/%.o)
+CXX_OBJ+=$(TASK_OBJ)
+
+PROG=$(EXAMPLE)_knc
+
+all: dirs $(PROG)
+
+dirs:
+	/bin/mkdir -p objs_knc/
+
+objs_knc/%.cpp objs_knc/%.o objs_knc/%.h: dirs
+
+clean: 
+	/bin/rm -rf $(PROG) objs_knc
+
+$(PROG): $(ISPC_OBJ) $(CXX_OBJ) 
+	$(LD) -o $@ $^ $(LDFLAGS)
+
+objs_knc/%.o: %.cpp
+	$(CXX) $(CXXFLAGS)  -o $@ -c $<
+
+objs_knc/%.o: ../../%.cpp
+	$(CXX) $(CXXFLAGS)  -o $@ -c $<
+
+objs_knc/%.o: ../../util/%.cpp
+	$(CXX) $(CXXFLAGS)  -o $@ -c $<
+
+objs_knc/%_ispc.o: %.ispc
+	$(ISPC) $(ISPC_FLAGS) --emit-c++ -o objs_knc/$*_ispc_zmm.cpp -h objs_knc/$*_ispc.h $< 
+	$(CXX) $(CXXFLAGS) -o $@ objs_knc/$*_ispc_zmm.cpp  -c
+
diff --git a/examples/portable/common_gpu.mk b/examples/portable/common_ptx.mk
similarity index 50%
rename from examples/portable/common_gpu.mk
rename to examples/portable/common_ptx.mk
index b04367e1..ed4b11cf 100644
--- a/examples/portable/common_gpu.mk
+++ b/examples/portable/common_ptx.mk
@@ -1,11 +1,11 @@
 NVCC_SRC=../../util/nvcc_helpers.cu
-NVCC_OBJS=objs_gpu/nvcc_helpers_nvcc.o
+NVCC_OBJS=objs_ptx/nvcc_helpers_nvcc.o
 #
 CXX=g++ -ffast-math
-CXXFLAGS=-O3 -I$(CUDATK)/include -Iobjs_gpu/ -D_CUDA_ -I../../util -I../../
+CXXFLAGS=-O3 -I$(CUDATK)/include -Iobjs_ptx/ -D_CUDA_ -I../../util -I../../
 #
 NVCC=nvcc
-NVCC_FLAGS+=-O3 -arch=sm_35 -D_CUDA_ -I../../util -Xptxas=-v -Iobjs_gpu/
+NVCC_FLAGS+=-O3 -arch=sm_35 -D_CUDA_ -I../../util -Xptxas=-v -Iobjs_ptx/
 ifdef PTXCC_REGMAX
   NVCC_FLAGS += --maxrregcount=$(PTXCC_REGMAX)
 endif
@@ -26,18 +26,18 @@ ISPC_FLAGS+=-O3 --math-lib=fast --target=nvptx --opt=fast-math
 #
 #
 #
-ISPC_LLVM_OBJS=$(ISPC_SRC:%.ispc=objs_gpu/%_llvm_ispc.o)
-ISPC_NVVM_OBJS=$(ISPC_SRC:%.ispc=objs_gpu/%_nvvm_ispc.o)
-ISPC_BCS=$(ISPC_SRC:%.ispc=objs_gpu/%_ispc.bc)
-ISPC_LLVM_PTX=$(ISPC_SRC:%.ispc=objs_gpu/%_llvm_ispc.ptx)
-ISPC_NVVM_PTX=$(ISPC_SRC:%.ispc=objs_gpu/%_nvvm_ispc.ptx)
-ISPC_HEADERS=$(ISPC_SRC:%.ispc=objs_gpu/%_ispc.h)
-CXX_OBJS=$(CXX_SRC:%.cpp=objs_gpu/%_gcc.o)
-CU_OBJS=$(CU_SRC:%.cu=objs_gpu/%_cu.o)
-#NVCC_OBJS=$(NVCC_SRC:%.cu=objs_gpu/%_nvcc.o)
+ISPC_LLVM_OBJS=$(ISPC_SRC:%.ispc=objs_ptx/%_llvm_ispc.o)
+ISPC_NVVM_OBJS=$(ISPC_SRC:%.ispc=objs_ptx/%_nvvm_ispc.o)
+ISPC_BCS=$(ISPC_SRC:%.ispc=objs_ptx/%_ispc.bc)
+ISPC_LLVM_PTX=$(ISPC_SRC:%.ispc=objs_ptx/%_llvm_ispc.ptx)
+ISPC_NVVM_PTX=$(ISPC_SRC:%.ispc=objs_ptx/%_nvvm_ispc.ptx)
+ISPC_HEADERS=$(ISPC_SRC:%.ispc=objs_ptx/%_ispc.h)
+CXX_OBJS=$(CXX_SRC:%.cpp=objs_ptx/%_gcc.o)
+CU_OBJS=$(CU_SRC:%.cu=objs_ptx/%_cu.o)
+#NVCC_OBJS=$(NVCC_SRC:%.cu=objs_ptx/%_nvcc.o)
 
 CXX_SRC+=ispc_malloc.cpp
-CXX_OBJS+=objs_gpu/ispc_malloc_gcc.o
+CXX_OBJS+=objs_ptx/ispc_malloc_gcc.o
 
 PTXGEN = $(ISPC_HOME)/ptxtools/ptxgen
 PTXGEN += --use_fast_math
@@ -51,16 +51,16 @@ LLC_FLAGS=-march=nvptx64 -mcpu=sm_35
 # .SUFFIXES: .bc .o .cu 
 
 ifdef LLVM_GPU
-  OBJSgpu_llvm=$(ISPC_LLVM_OBJS) $(CXX_OBJS) $(NVCC_OBJS) 
-  PROGgpu_llvm=$(PROG)_llvm_gpu
+  OBJSptx_llvm=$(ISPC_LLVM_OBJS) $(CXX_OBJS) $(NVCC_OBJS) 
+  PROGptx_llvm=$(PROG)_llvm_ptx
 else
   ISPC_LLVM_PTX=
 endif
 
 
 ifdef NVVM_GPU
-  OBJSgpu_nvvm=$(ISPC_NVVM_OBJS) $(CXX_OBJS) $(NVCC_OBJS) $(ISPC_LVVM_PTX)
-  PROGgpu_nvvm=$(PROG)_nvvm_gpu
+  OBJSptx_nvvm=$(ISPC_NVVM_OBJS) $(CXX_OBJS) $(NVCC_OBJS) $(ISPC_LVVM_PTX)
+  PROGptx_nvvm=$(PROG)_nvvm_ptx
 else
   ISPC_NVVM_PTX=
 endif
@@ -72,55 +72,55 @@ endif
 
 
 all: dirs  \
-	$(PROGgpu_nvvm)  \
-	$(PROGgpu_llvm)  \
+	$(PROGptx_nvvm)  \
+	$(PROGptx_llvm)  \
 	$(PROGcu) $(ISPC_BC)  $(ISPC_HEADERS) $(ISPC_NVVM_PTX) $(ISPC_LLVM_PTX)
 
 dirs:
-	/bin/mkdir -p objs_gpu/
+	/bin/mkdir -p objs_ptx/
 
-objs_gpu/%.cpp objs_gpu/%.o objs_gpu/%.h: dirs
+objs_ptx/%.cpp objs_ptx/%.o objs_ptx/%.h: dirs
 
 clean: 
-	/bin/rm -rf $(PROGgpu_nvvm) $(PROGgpu_llvm) $(PROGcu) objs_gpu
+	/bin/rm -rf $(PROGptx_nvvm) $(PROGptx_llvm) $(PROGcu) objs_ptx
 
 # generate binaries
-$(PROGgpu_llvm): $(OBJSgpu_llvm)
+$(PROGptx_llvm): $(OBJSptx_llvm)
 	$(LD) -o $@ $^ $(LDFLAGS)
-$(PROGgpu_nvvm): $(OBJSgpu_nvvm)
+$(PROGptx_nvvm): $(OBJSptx_nvvm)
 	$(LD) -o $@ $^ $(LDFLAGS)
 $(PROGcu): $(OBJScu)
 	$(LD) -o $@ $^ $(LDFLAGS)
 
 # compile C++ code
-objs_gpu/%_gcc.o: %.cpp $(ISPC_HEADERS)
+objs_ptx/%_gcc.o: %.cpp $(ISPC_HEADERS)
 	$(CXX) $(CXXFLAGS)  -o $@ -c $<
-objs_gpu/%_gcc.o: ../../util/%.cpp 
+objs_ptx/%_gcc.o: ../../util/%.cpp 
 	$(CXX) $(CXXFLAGS)  -o $@ -c $<
 
 # CUDA helpers
-objs_gpu/%_cu.o: %.cu $(ISPC_HEADERS)
+objs_ptx/%_cu.o: %.cu $(ISPC_HEADERS)
 	$(NVCC) $(NVCC_FLAGS)  -o $@ -dc $<
 
 # compile CUDA code 
-objs_gpu/%_nvcc.o: ../../util/%.cu
+objs_ptx/%_nvcc.o: ../../util/%.cu
 	$(NVCC) $(NVCC_FLAGS) -o $@ -c $<
-objs_gpu/%_nvcc.o: %.cu 
+objs_ptx/%_nvcc.o: %.cu 
 	$(NVCC) $(NVCC_FLAGS) -o $@ -c $<
 
 # compile ISPC to LLVM BC
-objs_gpu/%_ispc.h objs_gpu/%_ispc.bc: %.ispc 
-	$(ISPC) $(ISPC_FLAGS) --emit-llvm -h objs_gpu/$*_ispc.h -o objs_gpu/$*_ispc.bc $<
+objs_ptx/%_ispc.h objs_ptx/%_ispc.bc: %.ispc 
+	$(ISPC) $(ISPC_FLAGS) --emit-llvm -h objs_ptx/$*_ispc.h -o objs_ptx/$*_ispc.bc $<
 
 # generate PTX from LLVM BC
-objs_gpu/%_llvm_ispc.ptx: objs_gpu/%_ispc.bc
+objs_ptx/%_llvm_ispc.ptx: objs_ptx/%_ispc.bc
 	$(LLC) $(LLC_FLAGS) -o $@ $<
-objs_gpu/%_nvvm_ispc.ptx: objs_gpu/%_ispc.bc
-	$(LLVM32DIS) $< -o objs_gpu/$*_ispc-ll32.ll
-	$(PTXGEN) objs_gpu/$*_ispc-ll32.ll -o $@
+objs_ptx/%_nvvm_ispc.ptx: objs_ptx/%_ispc.bc
+	$(LLVM32DIS) $< -o objs_ptx/$*_ispc-ll32.ll
+	$(PTXGEN) objs_ptx/$*_ispc-ll32.ll -o $@
 
 # generate an object file from PTX
-objs_gpu/%_ispc.o: objs_gpu/%_ispc.ptx
+objs_ptx/%_ispc.o: objs_ptx/%_ispc.ptx
 	$(PTXCC) $< -Xnvcc="$(PTXCC_FLAGS)" -o $@