add latest CUDA arch to fix invalid device function errors

...on devices of that architecture.

Author: shelhamer

Makefile.config.example

@@ -4,11 +4,15 @@
 # CUDA directory contains bin/ and lib/ directories that we need.
 CUDA_DIR := /usr/local/cuda
 
-# CUDA architecture setting: going with all of them.
+# CUDA architecture setting: going with all of them (up to CUDA 5.5 compatible).
+# For the latest architecture, you need to install CUDA >= 6.0 and uncomment
+# the *_50 lines below.
 CUDA_ARCH := -gencode arch=compute_20,code=sm_20 \
 		-gencode arch=compute_20,code=sm_21 \
 		-gencode arch=compute_30,code=sm_30 \
 		-gencode arch=compute_35,code=sm_35
+		#-gencode=arch=compute_50,code=sm_50 \
+		#-gencode=arch=compute_50,code=compute_50
 
 # BLAS choice:
 # atlas for ATLAS (default)