diff --git a/Benchmarks/GridGradientBenchmark/Makefile.gcc b/Benchmarks/GridGradientBenchmark/Makefile.gcc
deleted file mode 100644
index 6183008..0000000
--- a/Benchmarks/GridGradientBenchmark/Makefile.gcc
+++ /dev/null
@@ -1,69 +0,0 @@
-#
-PROGRAM_NAME := GridGradient_CPU
-all: $(PROGRAM_NAME) 
-#CXX=g++ -lm -ffast-math -ftree-loop-vectorize 
-#CXX=icpc
-#
-program_CXX_SRCS := $(wildcard *.cpp)
-program_CXX_OBJS := ${program_CXX_SRCS:.cpp=.o}
-#
-program_C_SRCS := $(wildcard *.c)
-program_C_OBJS := ${program_C_SRCS:.c=.o}
-#
-program_CU_SRCS := $(wildcard *.cu)
-program_CU_OBJS := ${program_CU_SRCS:.cu=.cu.o}
-#
-# include
-#
-program_INCLUDE_DIRS := . /usr/local/cuda/include/ #C++ Include directories
-program_INCLUDE_DIRS += $(CFITSIO_ROOT)/include
-program_INCLUDE_DIRS += $(LENSTOOL_ROOT)/include
-program_INCLUDE_DIRS += $(GSL_ROOT)/include
-program_INCLUDE_DIRS += $(LENSTOOLHPC_ROOT)/src
-#
-# libs
-#
-program_INCLUDE_LIBS += $(CFITSIO_ROOT)/lib #Include libraries
-program_INCLUDE_LIBS += $(LENSTOOL_ROOT)/src
-program_INCLUDE_LIBS += $(LENSTOOL_ROOT)/liblt
-program_INCLUDE_LIBS += $(LENSTOOLHPC_ROOT)/src
-program_INCLUDE_LIBS += $(GSL_ROOT)/lib
-program_INCLUDE_LIBS += $(WCSTOOL_ROOT)
-#
-#
-# Compiler flags
-CXXFLAGS += $(foreach includedir,$(program_INCLUDE_DIRS),-I$(includedir))
-CXXFLAGS += $(foreach includelib,$(program_INCLUDE_LIBS),-L$(includelib))
-CXXFLAGS += -D__WITH_LENSTOOL 
-CXXFLAGS += -D__WITH_MPI
-include $(LENSTOOLHPC_ROOT)/src/cpuflags.gcc.inc
-include $(LENSTOOLHPC_ROOT)/src/precision.inc
-CXXFLAGS += $(PRECISION)
-
-#CXXFLAGS += -no-vec
-#CXXFLAGS += -qopenmp -march=core-avx2 -g -O3 -std=c++0x -Wall -pedantic
-#CXXFLAGS += -llenstoolhpc -qopenmp -xHost -g -O3 -std=c++0x -Wall -pedantic
-#CXXFLAGS += -llenstoolhpc -qopenmp -axMIC-AVX512,CORE-AVX2 -g -O3 -std=c++0x -Wall -pedantic
-#CXXFLAGS += -qopt-prefetch-distance=64,8 -qopt-streaming-cache-evict=0 -llenstoolhpc -qopenmp -xMIC-AVX512 -g -O3 -std=c++0x -Wall -pedantic
-LDFLAGS := -llenstool -llenstoolhpc -llt -lcfitsio -lwcs -lgsl -lgslcblas
-#
-LDFLAGS   += $(foreach includedir,$(program_INCLUDE_DIRS),-I$(includedir))
-LDFLAGS   += $(foreach includelib,$(program_INCLUDE_LIBS),-L$(includelib))
-#
-LDFLAGS   += -O3 -g -liomp5
-#
-#
-CPU_OBJECTS = $(program_CXX_OBJS) $(program_C_OBJS)
-#
-%.cpp: %.cpp %.h
-	$(CXX) $(CXXFLAGS) -o $@ $< $(CXXFLAGS)
-#
-$(PROGRAM_NAME): $(CPU_OBJECTS) 
-	$(CXX) -o $@ $^ $(LDFLAGS) 
-
-clean:
-	@- $(RM) $(PROGRAM_NAME) $(OBJECTS) *~ *.o *.optrpt
-
-distclean: clean
-
-.PHONY: all clean distclean