High-Level Synthesis of Pipelined FSM from Loop Nests
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| Title: | High-Level Synthesis of Pipelined FSM from Loop Nests |
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| Authors: | Alias, Christophe, Rastello, Fabrice, Plesco, Alexandru |
| Contributors: | Laboratoire de l'Informatique du Parallélisme (LIP), École normale supérieure de Lyon (ENS de Lyon), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS), Optimisation des ressources : modèles, algorithmes et ordonnancement (ROMA), Centre Inria de l'Université Grenoble Alpes, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Laboratoire de l'Informatique du Parallélisme (LIP), Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure de Lyon (ENS de Lyon), Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Compiler Optimization and Run-time Systems (CORSE), Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Laboratoire d'Informatique de Grenoble (LIG), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 )-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ), XtremLogic Lyon, INRIA, ROMA, CORSE |
| Source: | https://inria.hal.science/hal-01301334 ; [Research Report] 8900, INRIA. 2016, pp.18. |
| Publisher Information: | CCSD |
| Publication Year: | 2016 |
| Collection: | Université de Lyon: HAL |
| Subject Terms: | High-level synthesis, fine-grain loop optimization, control automaton, pipeline, ACM: B.: Hardware/B.1: CONTROL STRUCTURES AND MICROPROGRAMMING, ACM: B.: Hardware/B.7: INTEGRATED CIRCUITS/B.7.2: Design Aids, ACM: D.: Software/D.3: PROGRAMMING LANGUAGES/D.3.4: Processors/D.3.4.1: Compilers, ACM: D.: Software/D.3: PROGRAMMING LANGUAGES/D.3.4: Processors/D.3.4.6: Optimization, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], [INFO.INFO-DC]Computer Science [cs]/Distributed, Parallel, and Cluster Computing [cs.DC] |
| Description: | Embedded systems raise many challenges in power, space and speed efficiency. The current trend is to build heterogeneous systems on a chip with specialized processors and hardware accelerators. Generating an hardware accelerator from a computational kernel requires a deep reorganization of the code and the data. Typically, parallelism and memory bandwidth are met thanks to fine-grain loop transformations. Unfortunately, the resulting control automaton is often very complex and eventually bound the circuit frequency, which limits the benefits of the optimization. This is a major lock, which strongly limits the power of the code optimizations applicable by high-level synthesis tools.In this report, we propose an architecture of control automaton and an algorithm of high-level synthesis which translates efficiently the control required by fine-grain loop optimizations. Unlike the previous approaches, our control automaton can be pipelined at will, without any restriction. Hence, the frequency of the automaton can be as high as possible. Experimental results on FPGA confirms that our control circuit can reach a high frequency with a reasonable resource consumption. |
| Document Type: | report |
| Language: | English |
| Relation: | Report N°: 8900 |
| Availability: | https://inria.hal.science/hal-01301334 https://inria.hal.science/hal-01301334v2/document https://inria.hal.science/hal-01301334v2/file/RR-8900.pdf |
| Rights: | info:eu-repo/semantics/OpenAccess |
| Accession Number: | edsbas.B9892CF9 |
| Database: | BASE |
Nájsť tento článok vo Web of Science | Abstract: | Embedded systems raise many challenges in power, space and speed efficiency. The current trend is to build heterogeneous systems on a chip with specialized processors and hardware accelerators. Generating an hardware accelerator from a computational kernel requires a deep reorganization of the code and the data. Typically, parallelism and memory bandwidth are met thanks to fine-grain loop transformations. Unfortunately, the resulting control automaton is often very complex and eventually bound the circuit frequency, which limits the benefits of the optimization. This is a major lock, which strongly limits the power of the code optimizations applicable by high-level synthesis tools.In this report, we propose an architecture of control automaton and an algorithm of high-level synthesis which translates efficiently the control required by fine-grain loop optimizations. Unlike the previous approaches, our control automaton can be pipelined at will, without any restriction. Hence, the frequency of the automaton can be as high as possible. Experimental results on FPGA confirms that our control circuit can reach a high frequency with a reasonable resource consumption. |
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