Presentation 2008-11-19
Enlarging The Solution Space For Schedulability Based On Skew Optimization
Takayuki OBATA, Mineo KANEKO,
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Abstract(in English) In RT-Datapath synthesis, we sometime encounter a problem to find a control step assignment of control signals (schedule) for a given input instance which consists of DFG, resource binding and execution order of operations assigned to a same resource and delay information. This paper discusses the condition for an input instance (DFG, resource binding, execution order of operations, and delay value) to have a feasible solution (a control step assignment). Recently, it has been reported that skew control as well as control step assignment contributes to improving the performance of a datapath. Regarding the importance of skew control, we especially focus on simultaneous skew and control step assignment problem. One of our contributions of this paper is to show the NP-completeness of the decision problem whether an input instance has a feasible solution or not. The second contribution is a new condition for the input instance to have a feasible skew and control step assignments and a heuristic algorithm for simultaneous optimization of skew and control step assignments based on this condition.
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Keyword(in English) High-level synthesis / skew scheduling / control scheduling
Paper # VLD2008-86,DC2008-54
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Committee VLD
Conference Date 2008/11/10(1days)
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Paper Information
Registration To VLSI Design Technologies (VLD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Enlarging The Solution Space For Schedulability Based On Skew Optimization
Sub Title (in English)
Keyword(1) High-level synthesis
Keyword(2) skew scheduling
Keyword(3) control scheduling
1st Author's Name Takayuki OBATA
1st Author's Affiliation School of Information Science, Japan Advanced Institute of Science and Technology()
2nd Author's Name Mineo KANEKO
2nd Author's Affiliation School of Information Science, Japan Advanced Institute of Science and Technology
Date 2008-11-19
Paper # VLD2008-86,DC2008-54
Volume (vol) vol.108
Number (no) 298
Page pp.pp.-
#Pages 6
Date of Issue