Abstract:Graph partitioning is a basic task for distributed graph computing. It is used to divide a large-scale graph into different parts and allocate them to different machines in a cluster. The quality of graph partitioning has a great impact on the performance of distributed graph computing, and graph partitioning aims to minimize edge cuts and load balance. Nowadays, the graph data usually grow dynamically, which needs a partitioning method to process dynamic incremental graphs, so as to ensure the quality of graph partitioning. Although some dynamic graph partitioning algorithms have been presented recently, they cannot process real-time dynamic changes and obtain high-quality graph partitioning results simultaneously. In this study, a dynamic incremental graph partitioning algorithm based on vertex group redistribution (ED-IDGP) is proposed to solve the problem of large-scale dynamic incremental graph partitioning. In ED-IDGP, a dynamic processor is designed to process four different unit update types in real time, and the graph partitioning quality is further improved by executing a local optimizer near the dynamic change in the partition after each unit update. In the local optimizer of ED-IDGP, a vertex group search strategy based on the improved label propagation algorithm is used to search for the vertex group, and a vertex group movement gain formula is proposed to measure the most beneficial vertex group and move it to the target partition for optimization. This study evaluates the performance and efficiency of the ED-IDGP algorithm from different perspectives and metrics on real datasets.