Brief announcement: better speedups for parallel max-flow

We present a parallel solution to the Maximum-Flow (Max-Flow) problem, suitable for a modern many-core architec-
ture. We show that by starting from a PRAM algorithm,
following an established “programmer’s workflow” and tar-
geting XMT, a PRAM-inspired many-core architecture, we
achieve significantly higher speed-ups than previous approaches.
Comparison with the fastest known serial max-flow imple-
mentation on a modern CPU demonstrates for the first time
potential for orders-of-magnitude performance improvement
for Max-Flow. Using XMT, the PRAM Max-Flow algorithm
is also much easier to program than for other parallel plat-
forms, contributing a powerful example toward dual valida-
tion of both PRAM algorithmics and XMT.