Paper on Distributed GPU Joins on Fast RDMA-capable Networks accepted to SIGMOD 2023

Congratulations to Lasse Thostrup, Gloria Doci, Nils Boeschen, Manisha Luthra and Carsten Binnig!


Lasse Thostrup will present the paper “Distributed GPU Joins on Fast RDMA-capable Networks” at SIGMOD 2023 in Seattle.

In this paper, we present a novel pipelined GPU join that accelerates the performance of distributed DBMSs by leveraging GPU resources on fast networks.

A key insight is that we enable pipelined join execution by overlapping the network shuffling with the build and probe phases, thereby significantly reducing the GPU idle time. To demonstrate this, we propose novel algorithms for distributed pipelined GPU joins with RDMA and GPUDirect for both arbitrarily large probe- and build-side tables.