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DUNES: a performance-oriented system support environment for dependency maintenance in workstation networks

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2 Author(s)
J. Cruz ; Dept. of Comput. Sci., Purdue Univ., West Lafayette, IN, USA ; Kihong Park

With the proliferation of workstation clusters connected by high-speed networks, providing efficient system support for concurrent applications engaging in nontrivial interaction has become an important problem. Two principal barriers to harnessing parallelism are: efficient mechanisms that achieve transparent dependency maintenance while preserving semantic correctness; and scheduling algorithms that match coupled processes to distributed resources while explicitly incorporating their communication costs. This paper describes a set of performance features, their properties, and implementation in a system support environment called DUNES that achieves transparent dependency maintenance-IPC, file access, memory access, process creation/termination, process relationships-under dynamic load balancing. The two principal performance features are push/pull-based active and passive end-point caching and communication-sensitive load balancing. Collectively, they mitigate the overhead introduced by the transparent dependency maintenance mechanisms. Communication-sensitive load balancing, in addition, affects the scheduling of distributed resources to application processes where both communication and computation costs are explicitly taken into account. The DUNES architecture endows commodity operating systems with distributed operating system functionality while achieving transparency with respect to their existing application base. DUNES also preserves semantic correctness with respect to single processor semantics

Published in:

High Performance Distributed Computing, 1999. Proceedings. The Eighth International Symposium on

Date of Conference: