Algorithm

Join (topology)

Overhead (engineering)

Embedded system

Operating system

Parallel computing

Computer science

Distributed computing

PCI Express

Remote direct memory access

Mathematics

Bottleneck

Combinatorics

Distributed database

Data acquisition

In data management systems, query processing on GPUs or distributed clusters have proven to be an effective method for high efficiency. However, the high PCIe data transfer overhead between CPUs and GPUs, and the communication cost between nodes in distributed systems are usually bottleneck for improving system performance. Recently, GPUDirect RDMA has been developed and has received a lot of attention. It contains the features of the RDMA and GPUDirect technologies, which provides new opportunities for optimizing query processing.

Distributed Join Algorithms on Multi-CPU Clusters with GPUDirect RDMA