Dynamic verification of sequential consistency
Journal Article
In this paper, we develop the first feasibly implementable scheme for end-to-end dynamic verification of multithreaded memory systems. For multithreaded (including multiprocessor) memory systems, end-to-end correctness is defined by its memory consistency model. One such consistency model is sequential consistency (SC), which specifies that all loads and stores appear to execute in a total order that respects program order for each thread. Our design, DVSC-Indirect, performs dynamic verification of SC (DVSC) by dynamically verifying a set of sub-invariants that, when taken together, have been proven equivalent to SC. We evaluate DVSC-Indirect with full-system simulation and commercial workloads. Our results for multiprocessor systems with both directory and snooping cache coherence show that DVSC-Indirect detects all injected errors that affect system correctness (i.e., SC). We show that it uses only a small amount more bandwidth (less than 25%) than an unprotected system and thus can achieve comparable performance when provided with only modest additional link bandwidth. © 2005 IEEE.
Full Text
Duke Authors
Cited Authors
- Meixner, A; Sorin, DJ
Published Date
- November 10, 2005
Published In
Start / End Page
- 482 - 493
International Standard Serial Number (ISSN)
- 1063-6897
Digital Object Identifier (DOI)
- 10.1109/ISCA.2005.25
Citation Source
- Scopus