• Autor: Shuvra S. Bhattacharyya
  • Editor: Kluwer Academic Publishers
  • Last data published: 01 May 1996
  • ISBN: 0792397223
  • Format: PDF, Epub, DOCx, TXT
  • Number of page: 208 pages
  • File Size: 32MB
  • Rating:


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Description Software Synthesis from Dataflow Graphs de Shuvra S. Bhattacharyya:

This text addresses the problem of generating efficient software implementations from applications specified as synchronous dataflow graphs for programmable digital signal processors (DSPs) used in embedded real- time systems. The advent of high-speed graphics workstations has made feasible the use of graphical block diagram programming environments by designers of signal processing systems. A particular subset of dataflow, called Synchronous Dataflow (SDF), has proven efficient for representing a wide class of unirate and multirate signal processing algorithms, and has been used as the basis for numerous DSP block diagram-based programming environments such as the Signal Processing Workstation from Cadence Design Systems, Inc., COSSAP from Synopsys TM (both commercial tools), and the Ptolemy environment from the University of California at Berkeley. A key property of the SDF model is that static schedules can be determined at compile time. This removes the overhead of dynamic scheduling and is thus useful for real-time DSP programs where throughput requirements are often severe. Another constraint that programmable DSPs for embedded systems have is the limited amount of on-chip memory. Off-chip memory is not only expensive but is also slower and increases the power consumption of the system- hence, it is imperative that programs fit in the on-chip memory whenever possible. This book reviews the state of the art in constructing static, memory-optimal schedules for programs expressed as SDF graphs. Code size reduction is obtained by the careful organization of loops in the target code. Data buffering is optimized by constructing the loop hierarchy in provably optimal ways for many classes of SDF graphs. The central result is a uniprocessor scheduling framework that provably synthesizes the most compact looping structures, called single appearance schedules, for a certain class of SDF graphs. In addition, algorithms and heuristics are presented that generate single appearance schedules optimized for data buffering usage. Numerous practical examples and extensive experimental data are provided to illustrate the efficacy of these techniques. Info on this author is not discovered as well as continues to be taken away with the demand on the writer. You'll may very well be keen on different books through the Shuvra S. Bhattacharyya. We were in a position to obtain most of the many iformatsii for yourself. For experts: site would not extend to consumer access ones publications on our internet pages just starting details about the publication. If you think web page is definitely infringing, be sure to email you over it trouble with in truth the author of the textbooks, we're going to rapidly take out internet pages from website.

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