How to assign root vertex for BFS?

[yuang-chen]

Hi, After the BFS is compiled -- $ make grazelle ALGORITHM=BREADTH_FIRST_SEARCH

I would like to assign specific root vertex for the execution of BFS. But I am unable to find a command option (e.g., -v vextex_id ) to do so: $ ./output/linux/grazelle -i /data/livejournal.bin -n 40 -u 0,1 -v 1000 , such that the BFS will start with the vertex with ID 1000.

Can you please let me know how to customize the root vertex for graph traversal.