In this paper, we describe a t e chnique for power reduction in sequential circuits.Existing signals in the circuit are used to selectively disable some of the registers so that a portion of the circuit will be d e activated.Consequently, average power consumption in the circuit is reduced a t a c ost of small increases in area and delay.We present an algorithm for determining the desensitizing signal for each register.A signi cant amount of power reduction is achieved in a number of benchmark circuits according to our experimental results.

Scalable shared-memory multiprocessors are often slowed down by long-latency memory accesses. One way to cope with this problem is to use data forwarding to overlap memory accesses with computation. With data forwarding, when a processor produces a datum, in addition to updating its cache, it sends a copy of the datum to the caches of the processors that the compiler identified as consumers of it. As a result, when the consumer processors access the datum, they find it in their caches. This paper addresses two main issues. First, it presents a framework for a compiler algorithm for forwarding. Second, using address traces, it evaluates the performance impact of different levels of support for forwarding. Our simulations of a 32-processor machine show that an optimistic support for forwarding speeds up five applications by an average of 50% for large caches and 30% for small caches. For large caches, most sharing read misses are eliminated, while for small caches, forwarding does not increase the number of conflict misses significantly. Overall, support for forwarding in shared-memory multiprocessors promises to deliver good application speedups.

Article Free Access Share on Data forwarding in scalable shared-memory multiprocessors Authors: D. A. Koufaty Center for Supercomputing Research and Development, University of Illinois at Urbana-Champaign, IL Center for Supercomputing Research and Development, University of Illinois at Urbana-Champaign, ILView Profile , X. Chen Center for Supercomputing Research and Development, University of Illinois at Urbana-Champaign, IL Center for Supercomputing Research and Development, University of Illinois at Urbana-Champaign, ILView Profile , D. K. Poulsen Kuck and Associates, Inc., Champaign, IL and Center for Supercomputing Research and Development, University of Illinois at Urbana-Champaign, IL Kuck and Associates, Inc., Champaign, IL and Center for Supercomputing Research and Development, University of Illinois at Urbana-Champaign, ILView Profile , J. Torrellas Center for Supercomputing Research and Development, University of Illinois at Urbana-Champaign, IL Center for Supercomputing Research and Development, University of Illinois at Urbana-Champaign, ILView Profile Authors Info & Claims ICS '95: Proceedings of the 9th international conference on SupercomputingJuly 1995 Pages 255–264https://doi.org/10.1145/224538.224569Published:03 July 1995Publication History 50citation272DownloadsMetricsTotal Citations50Total Downloads272Last 12 Months23Last 6 weeks5 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteeReaderPDF