A group-based load balance scheme for software distributed shared memory systems

Yi Chang Zhuang, Tyng Yue Liang, Ce Kuen Shieh, Jun Qi Lee, Laurence Tianruo Yang

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Load balance is an important issue for the performance of software distributed shared memory (DSM) systems. One solution of addressing this issue is exploiting dynamic thread migration. In order to reduce the data consistency communication increased by thread migration, an effective load balance scheme must carefully choose threads and destination nodes for workload migration. In this paper, a group-based load balance scheme is proposed to resolve this problem. The main characteristic of this scheme is to classify the overloaded nodes and the lightly loaded nodes into a sender group and a receiver group, and then consider all the threads of the sender group and all the nodes of the receiver group for each decision. The experimental results show that the group-based scheme reduces more communication than the previous schemes. Besides, this paper also resolves the problem of the high costs caused by group-based schemes. Therefore, the performance of the test programs is effectively enhanced after minimizing the communication increased by thread migration.

Original languageEnglish
Pages (from-to)295-309
Number of pages15
JournalJournal of Supercomputing
Issue number3
Publication statusPublished - 2004 Jun

All Science Journal Classification (ASJC) codes

  • Software
  • Theoretical Computer Science
  • Information Systems
  • Hardware and Architecture

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