Makefile updated to remove discontinued GPU compute capability values…

… from 2012

Makefile

@@ -43,8 +43,10 @@ OPENMPI_PATH = /usr/include/openmpi
 
 
 # Compiler's flags:
-CFLAGS = -O3 -use_fast_math -m64 -DUSING_CUDA -DUSING_MPI -I./ -I$(CUDA_PATH) -I$(CUDA_SDK_PATH) -L$(CUDA_SDK_LIB_PATH) -L$(CUDA_LIB_PATH) -lcudart -lm -lz -I$(OPENMPI_PATH) -lmpi --ptxas-options=-v -gencode=arch=compute_13,code=sm_13 -gencode=arch=compute_13,code=compute_13 -gencode=arch=compute_20,code=sm_20 -gencode=arch=compute_20,code=compute_20 -gencode=arch=compute_30,code=sm_30 -gencode=arch=compute_30,code=compute_30 
-
+CFLAGS = -O3 -use_fast_math -m64 -DUSING_CUDA -DUSING_MPI -I./ -I$(CUDA_PATH) -I$(CUDA_SDK_PATH) -L$(CUDA_SDK_LIB_PATH) -L$(CUDA_LIB_PATH) -lcudart -lm -lz -I$(OPENMPI_PATH) -lmpi --ptxas-options=-v 
+#  NOTE: you can compile the code for a specific GPU compute capability. For example, for compute capabilities 5.0 and 6.1, use flags:
+#    -gencode=arch=compute_50,code=sm_50 -gencode=arch=compute_61,code=sm_61
+
 
 # Command to erase files:
 RM = /bin/rm -vf