scholarly journals Energy-Aware Task Allocation for Heterogeneous Multiprocessor Systems by Using Integer Linear Programming

2019 ◽  
Vol 27 (0) ◽  
pp. 136-148
Author(s):  
Yang Qin ◽  
Gang Zeng ◽  
Ryo Kurachi ◽  
Yutaka Matsubara ◽  
Hiroaki Takada
Keyword(s):  
Linear Programming ◽  
Integer Linear Programming ◽  
Task Allocation ◽  
Multiprocessor Systems ◽  
Energy Aware ◽  
Heterogeneous Multiprocessor

scholarly journals Answer Set versus Integer Linear Programming for Automatic Synthesis of Multiprocessor Systems from Real-Time Parallel Programs

2009 ◽  
Vol 2009 ◽  
pp. 1-11 ◽  
Author(s):  
Harold Ishebabi ◽  
Philipp Mahr ◽  
Christophe Bobda ◽  
Martin Gebser ◽  
Torsten Schaub
Keyword(s):  
Linear Programming ◽  
Real Time ◽  
Integer Linear Programming ◽  
Linear Equations ◽  
Parallel Programs ◽  
Design Parameters ◽  
Multiprocessor Systems ◽  
Task Mapping ◽  
Baseband Signal Processing ◽  
Answer Set

An automated design approach for multiprocessor systems on FPGAs is presented which customizes architectures for parallel programs by simultaneously solving the problems of task mapping, resource allocation, and scheduling. The latter considers effects of fixed-priority preemptive scheduling in order to guarantee real-time requirements, hence covering a broad spectrum of embedded applications. Being inherently a combinatorial optimization problem, the design space is modeled using linear equations that capture high-level design parameters. A comparison of two methods for solving resulting problem instances is then given. The intent is to study how well recent advances in propositional satisfiability (SAT) and thus Answer Set Programming (ASP) can be exploited to automate the design of flexible multiprocessor systems. Integer Linear Programming (ILP) is taken as a baseline, where architectures for IEEE 802.11g and WCDMA baseband signal processing are synthesized. ASP-based synthesis used a few seconds in the solver, faster by three orders of magnitude compared to ILP-based synthesis, thereby showing a great potential for solving difficult instances of the automated synthesis problem.

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