what is bitvector mode ?

[shihjimmy]

I found a paper: "PVGwfa: a multi‑level parallel sequence‑to‑graph
alignment algorithm"

That has the narrative below:

GraphAligner offers two modes: a heuristic mode (GraphAligner
heuristic) and a bitvector-accelerated exact mode (GraphAligner bitvector). The
heuristic mode prioritizes speed and can align sequences rapidly, but we found that
longer sequences in its results were often split into segments, making it challenging
to form complete alignment results. In contrast, the bitvector mode ensures complete
alignment by using an exact alignment strategy, but its runtime is notably longer.

I want to know how to activate this bitvector exact mode ???

Because currently I am focusing on comparing the global alignment tool with this read-mapping tool,
I want to pick out the DP part of the GraphAligner, so that I can do the comparison

Or is there any way that I can make GraphAligner do only DP and get global alignment result?

Thanks