Low-Cost Garbage Collection for Causal Message Logging

  • Authors:
  • JinHo Ahn;Sung-Gi Min;Chong-Sun Hwang

  • Affiliations:
  • -;-;-

  • Venue:
  • HiPC '01 Proceedings of the 8th International Conference on High Performance Computing
  • Year:
  • 2001

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Abstract

This paper presents two garbage collection schemes for causal message logging with independent checkpointing. The first scheme allows each process to autonomously remove useless log information in its storage by piggybacking only some additional information without requiring any extra message and forced checkpoint. The second scheme enables the process to remove a part of log information in its storage if more empty storage space is required after executing the first scheme. It reduces the number of processes to participate in the garbage collection by using the size of the log information of each process. Simulation results show that combining the two schemes significantly reduces the garbage collection overhead compared with the traditional schemes.