Characterizing the Dynamic Behavior of Workload Execution in SVM systems

Petit, Salvador; Sahuquillo, Julio; Pont, Ana; Kaeli, David

doi:10.1109/sbac-pad.2004.12

Cited by 2 publications

(3 citation statements)

References 10 publications

(12 reference statements)

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“…In other words, how more efficient consistency protocols can be designed using the knowledge obtained from workload characterizations. In this sense, this paper join and extends the work performed in [7,8,24].…”

supporting

confidence: 64%

Addressing a workload characterization study to the design of consistency protocols

et al. 2006

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Shared Virtual Memory (SVM) provides a low-cost and effective way to implement the shared-memory programming paradigm. SVMs utilize a number of concepts that include consistency models/protocols, sharing patterns, false sharing, and fragmentation issues. The range of issues encountered in an SVM introduces a level of complexity and presents a challenge to many SVM researchers.This paper presents a careful study of SVM systems focusing on how the workload characteristics can affect the performace of consistency protocols. This knowledge is used to propose a novel consistency protocol that improves the system performance. This paper pursues two main goals: (i) to illustrate how different SVM workload characteristics are interrelated, and (ii) to motivate the design of a new multiple-writer memory consistency protocol. To achieve the first goal, we provide a detailed workload characterization analysis and discussion on how consistency models and protocols work. To achieve the second goal, we describe a software-based SVM protocol that achieves better performance than a hardware protocol proposed in the literature. In some workloads, the speedup obtained over the baseline protocol is more than 20%.

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supporting

confidence: 64%

Addressing a workload characterization study to the design of consistency protocols

et al. 2006

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“…A previous characterization work [13] induced us to design the HLRC-DU protocol, which is based on the HLRC protocol. In the proposed protocol the writer node sends write updates instead of write notices when it detects diffs smaller than an experimental threshold, which is used to avoid the network becomes a bottleneck as well as to reduce asynchronous communication.…”

Section: Discussionmentioning

confidence: 99%

“…In a previous work [13], we performed a characterization study of the discussed phenomena on several parallel workloads. We concluded that i) asynchronous communication occurs in bursts, producing critical section dilation; ii) due to the large granularity supported by SVM systems sharing pattern transformation appears, considerably increasing the amount of asynchronous page requests, which is one metric directly related with performance losses.…”

Section: Motivationmentioning

confidence: 99%