Grape

We demonstrate GRAPE, a parallel GRAPh query Engine. GRAPE advocates a parallel model based on a simultaneous fixed point computation in terms of partial and incremental evaluation. It differs from prior systems in its ability to parallelize existing sequential graph algorithms as a whole, without the need for recasting the entire algorithms into a new model. One of its unique features is that under a monotonic condition, GRAPE parallelization guarantees to terminate with correct answers as long as the sequential algorithms "plugged in" are correct. We demonstrate its parallel computations, ease-of-use and performance compared with the start-of-the-art graph systems. We also demonstrate a use case of GRAPE in social media marketing.