| E. A. Lee and D. G. Messerschmitt, "Static scheduling of synchronous data flow programs for digital signal processing," IEEE Transactions on Computers, Vol. 36, No. 1, pp. 24--35, 1987. |
....constraints. An actor fires in a dataflow graph by removing tokens from its input edges and producing tokens on its output edges. The stream of tokens produced this way corresponds naturally to a discrete time signal in a DSP system. In this paper, we consider a subset of dataflow called SDF [17]. In SDF, each actor produces and consumes a fixed number of tokens, and these numbers are known at compile time. In addition, each edge has a fixed initial number of tokens, called delays. IV. NOTATION AND BACKGROUND Fig. 2(a) shows a simple SDF graph. Each edge is annotated with the number of ....
E. A. Lee and D. G. Messerschmitt, "Static scheduling of synchronous dataflow programs for digital signal processing," IEEE Trans. Comput., vol. C-36, pp. 24--35, Feb. 1987.
....number of applications requiring high processing throughput in real time. These applications include various fields of Digital Signal Processing (radar signal processing, image processing) and high speed real time control systems. The restrictions imposed by the static data flow model presented in [1] are often ac ceptable in such applications and workarounds exist in the form of hybrid static dynamic schedulers [2] The static scheduling problem is NP complete in a strong sense [3] so it is attacked by different form of heuristics. These heuristics can be divided into four groups. 1. ....
....8 Springplay is compared with a Branch Bound class and with a Generalized List Scheduler class algorithm and in section 9 conclusions are drawn. At the end we present the schedule made by all the four algorithms on an example signalflow graph to demonstrate the advantage offered by Springplay. [1,4,4] required on the processors which take part in a given communication activity can be different. We suppose buffered asynchronous communic ation (nonblocking send, blocking receive) The amount of data units communicated among the tasks is constant and known in advance. The value to be ....
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E. A. Lee and D. Messerschmitt, "Static scheduling of Synchronous Data Flow Programs for Digital Signal Processing," IEEE Trans. on Cornputers, vol C-36, pp. 24-35, No. 1, January
....tasks, and edges represent logical FIFO communication channels between tasks. A decidable dataflow model is one in which deadlock and unbounded buffer accumulation can be determined in finite time for every specification in the model. Examples of decidable dataflow models are CSDF [3] SDF [8], MDSDF [9] and SSDF [12] For consistent specifications in each of these models, there is a unique, integer valued repetitions vector that is indexed by the graph actors and gives the number of times each actor needs to be invoked to form a minimal periodic schedule for the graph. A number of ....
E. A. Lee and D. G. Messerschmitt. Static scheduling of synchronous dataflow programs for digital signal processing. IEEE Transactions on Computers, February 1987.
....decisions as non deterministic choices, but they can not model external conditions or multiple rendezvous. The PN shown in figure 1b) is not a Free Choice Net, because there exists a marking in which transition t 3 is enabled and transition t 2 is not. Cyclic schedules SynchronousDataflow (SDF) [1] networks are a special case of Petri Nets, since they can be mapped into Marked Graphs where actors are transitions and arcs places. The approach proposed by Lee [1] to find a static schedule for an SDF graph is based on the notion of finite complete cycle. Given a Marked Graph and an initial ....
....there exists a marking in which transition t 3 is enabled and transition t 2 is not. Cyclic schedules SynchronousDataflow (SDF) 1] networks are a special case of Petri Nets, since they can be mapped into Marked Graphs where actors are transitions and arcs places. The approach proposed by Lee [1] to find a static schedule for an SDF graph is based on the notion of finite complete cycle. Given a Marked Graph and an initial marking, or equivalently a SDF graph and an initial configuration of tokens, a finite complete cycle is a sequence of transition firings that returns the net to its ....
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E.A.Lee and D.G.Messerschmitt. Static scheduling of synchronous dataflow programs for digital signal processing. IEEE Transactions on computers, January 1987.
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E. A. Lee and D. G. Messerschmitt, "Static scheduling of synchronous data flow programs for digital signal processing," IEEE Transactions on Computers, Vol. 36, No. 1, pp. 24--35, 1987.
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E. A. Lee and D. G. Messerschmitt, "Static Scheduling of Synchronous Data Flow Programs for Digital Signal Processing," IEEE Transactions on Computers, pp. 24-35, January 1987.
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E. A. Lee and D. G. Messerschmitt, "Static scheduling of synchronous dataflow programs for digital signal processing," IEEE Trans. Comput., vol. C-36, pp. 24--35, Jan. 1987.
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E. A. Lee, D. G Messerschmitt, "Static Scheduling of Synchronous Dataflow Programs for Digital Signal Processing, " IEEE Trans. on Computers, Jan. 1987
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D. G. Messerschmitt E. A. Lee. Static scheduling of synchronous data flow programs for digital signal processing. IEEE Trans. Computers, 36(1):24--25, 1987.
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E.A. Lee and D.G. Messerschmitt, "Static Scheduling of Synchronous Data Flow Programs for Digital Signal Processing," IEEE Trans. Comp., vol.C-36, no. 1, pp. 24-35, Jan. 1987.
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E. A. Lee and D. G. Messerschmitt, "Static scheduling of synchronous data flow programs for digital signal processing," IEEE Trans. Comput., vol. C-36, pp. 24--35, Jan 1987.
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E. A. Lee and D. G. Messerschmitt, "Static scheduling of synchronous data-flow programs for digital signal processing," IEEE Trans. Comput., vol. C-36, pp. 24--35, Jan. 1987.
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E. A. Lee and D. G. Messerschmitt. Static scheduling of synchronous data flow programs for digital signal processing. IEEE Transactions on Computers, C-36(1):24--35, January 1987.
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E. A. Lee and D. G. Messerschmitt. Static scheduling of synchronous data flow programs for digital signal processing. IEEE Transactions on Computers, C36 (1):24--35, January 1987.
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E. Lee and D. Messerschmitt. Static scheduling of synchronous data flow programs for digital signal processing. IEEE Trans. on Computers, 1:24--35, 1987.
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E.A. Lee and D.A. Messerschmitt. Static scheduling of synchronous data flow programs for digital signal processing. IEEE Transactions on Computers (TOC), C36 (1):24--35, January 1987. 209
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E. A. Lee and D. G. Messerschmitt, Static Scheduling of Synchronous Data Flow Programs for Digital Signal Processing, IEEE Transaction on Computers, pp. 24-35 (January, 1987).
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Lee, E.A., and Messerschmitt, D.G., Static Scheduling of Synchronous Data Flow Programs for Digital Signal Processing. In IEEE Transactions on Computers, vol. 36, no. 1, 24-35, 1987.
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E. A. Lee and D. G. Messerschmitt. Static scheduling of synchronous dataflow programs for digital signal processing. IEEE Transactions on Computers, February 1987.
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E. A. Lee and D. G. Messerschmitt, "Static Scheduling of Synchronous Data Flow Programs for Digital Signal Processing," IEEE Trans. on Computers, January, 1987.
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Lee, E.A., Messerschmitt, D.G., "Static Scheduling of Synchronous Data Flow Programs for Digital Signal Processing, " IEEE Transactions on Computers, C-36(1), Jan. 1987, pp. 24-35.
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E. A. Lee, D. G. Messerschmitt, "Static Scheduling of Synchronous Dataflow Programs for Digital Signal Processing," IEEE Trans. on Computers, Feb., 1987.
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E. A. Lee and D. G. Messerschmitt, "Static scheduling of synchronous data flow programs for digital signal processing," IEEE Trans. Comput., Jan. 1987.
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E. A. Lee and D. G. Messerschmitt. Static Scheduling of Synchronous Data Flow Programs for Digital Signal Processing. IEEE transactions on computers, January 1987.
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E. A. Lee and D. G. Messerschmitt, "Static scheduling of synchronous data flow programs for digital signal processing," IEEE Trans. Computers, Jan. 1987.
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