Updated the virtual warp kernel of the SSSP hybrid algorithm so that the virtual warp width is never larger than the hardware warp size
Updated comment related maximum virual warp width
Merge pull request #18 from tahsinreza/vwarp_kernel_max_warp_width_update

Updated the virtual warp kernel of the SSSP hybrid algorithm
Merge branch 'master' of github.com:netsyslab/Totem into hybrid-bfs-stepwise