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USENIX Windows NT Workshop, 1997

Coordinated Thread Scheduling for Workstation Clusters Under Windows NT

Matt Buchanan and Andrew A. Chien
Concurrent Systems Architecture Group
Department of Computer Science, University of Illinois

Abstract

Coordinated thread scheduling is a critical factor in achieving good performance for tightly-coupled parallel jobs on workstation clusters. We are building a coordinated scheduling system that coexists with the Windows NT scheduler which both provides coordinated scheduling and can generalize to provide a wide range of resource abstractions. We describe the basic approach, called "demand-based coscheduling", and implementation in the context of Windows NT. We report preliminary performance data characterizing the effectiveness of our approach and describe benefits and limitations of our approach.
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