Fix the ptx path in cuda demo
Fix the ptx path in cuda demo

nicolas-p/factor,factor/factor,mrjbq7/factor,slavapestov/factor,mrjbq7/factor,AlexIljin/factor,dch/factor,tgunr/factor,AlexIljin/factor,factor/factor,dch/factor,factor/factor,bjourne/factor,mrjbq7/factor,bjourne/factor,AlexIljin/factor,nicolas-p/factor,nicolas-p/factor,factor/factor,bjourne/factor,AlexIljin/factor,sarvex/factor-lang,bjourne/factor,slavapestov/factor,dch/factor,bpollack/factor,slavapestov/factor,AlexIljin/factor,sarvex/factor-lang,nicolas-p/factor,bpollack/factor,bpollack/factor,bjourne/factor,bjourne/factor,AlexIljin/factor,tgunr/factor,tgunr/factor,slavapestov/factor,AlexIljin/factor,slavapestov/factor,bpollack/factor,sarvex/factor-lang,sarvex/factor-lang,dch/factor,sarvex/factor-lang,tgunr/factor,tgunr/factor,nicolas-p/factor,factor/factor,bpollack/factor,sarvex/factor-lang,slavapestov/factor,nicolas-p/factor,factor/factor,sarvex/factor-lang,tgunr/factor,bjourne/factor,nicolas-p/factor,dch/factor,mrjbq7/factor,bpollack/factor,mrjbq7/factor,slavapestov/factor,dch/factor,mrjbq7/factor,bpollack/factor