Updating CUDA library path to CUDA 7.0.

Author: Damian Rouson

src/cuda_mpi/Makefile

@@ -7,7 +7,7 @@ libcaf_cuda.a: mpi_caf.o ../common/caf_auxiliary.o
 	ranlib $@
 
 .c.o:
-	$(MPICC) $(CFLAGS) $(MPI_CFLAGS) -I.. -I/opt/nvidia/cudatoolkit6.5/6.5.14-1.0502.9836.9.1/include/ -L/opt/nvidia/cudatoolkit6.5/6.5.14-1.0502.9836.9.1/lib -lcuda -lcudart -c $< -o $@
+	$(MPICC) $(CFLAGS) $(MPI_CFLAGS) -I.. -I/opt/nvidia/cudatoolkit7.0/7.0.28-1.0502.10280.4.1/include/ -L/opt/nvidia/cudatoolkit7.0/7.0.28-1.0502.10280.4.1/lib -lcuda -lcudart -c $< -o $@
 
 mpi_caf.o: mpi_caf.c ../libcaf.h ../libcaf-gfortran-descriptor.h