Limited multiple-writer: An approach to dealing with false sharing in software DSMs
Salvato in:
| Pubblicato in: | Journal of Computer Science and Technology vol. 15, no. 5 (Sep 2000), p. 453 |
|---|---|
| Autore principale: | |
| Altri autori: | |
| Pubblicazione: |
Springer Nature B.V.
|
| Soggetti: | |
| Accesso online: | Citation/Abstract Full Text - PDF |
| Tags: |
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| Abstract: | False sharing is one of the most important factors impacting the performance of DSM (distributed shared memory) systems. The single-writer approach is simple, but it cannot avoid the ping-pong effect of the data page thrashing, while the multiple-writer approach is effective for false sharing but with high cost. This paper proposes a new approach, called limited multiple-writer (LMW) to handling multiple writers in software DSM. It distinguishes two kinds of multiple-writer as lock-based form and barrier-based form, and handles them with different policies. It discards theTwin andDiff in traditional multiple-writer approach, and simplifies the implementation of multiple-writer in software DSM systems. The implementation of LMW in a CVM (Coherent Virtual Machine) software DSM system, which is based on a network of workstations, is introduced. Evaluation results show that for some applications such as SOR (Successive Over-Relaxation), LU (Lower triangular and Upper triangular), FFT (Fast Fourier Transformation), and IS (Integer Sorting), LMW provides a significant reduction in execution time (11%, 16%, 33% and 46%) compared with the traditional multiple-writer approach on the platform. |
|---|---|
| ISSN: | 1000-9000 1860-4749 |
| DOI: | 10.1007/BF02950409 |
| Fonte: | ABI/INFORM Global |