Automatic Pipelining and Vectorization of Scientific Code for FPGAs

There is a large body of legacy scientific code in use today that could benefit from execution on accelerator devices like GPUs and FPGAs. Manual translation of such legacy code into device-specific parallel code requires significant manual effort and is a major obstacle to wider FPGA adoption. We a...

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Main Authors: Syed Waqar Nabi, Wim Vanderbauwhede
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:International Journal of Reconfigurable Computing
Online Access:http://dx.doi.org/10.1155/2019/7348013
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author Syed Waqar Nabi
Wim Vanderbauwhede
author_facet Syed Waqar Nabi
Wim Vanderbauwhede
author_sort Syed Waqar Nabi
collection DOAJ
description There is a large body of legacy scientific code in use today that could benefit from execution on accelerator devices like GPUs and FPGAs. Manual translation of such legacy code into device-specific parallel code requires significant manual effort and is a major obstacle to wider FPGA adoption. We are developing an automated optimizing compiler TyTra to overcome this obstacle. The TyTra flow aims to compile legacy Fortran code automatically for FPGA-based acceleration, while applying suitable optimizations. We present the flow with a focus on two key optimizations, automatic pipelining and vectorization. Our compiler frontend extracts patterns from legacy Fortran code that can be pipelined and vectorized. The backend first creates fine and coarse-grained pipelines and then automatically vectorizes both the memory access and the datapath based on a cost model, generating an OpenCL-HDL hybrid working solution for FPGA targets on the Amazon cloud. Our results show up to 4.2× performance improvement over baseline OpenCL code.
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institution Kabale University
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spelling doaj-art-50e03b9b7115497eb5d8c89dbf6d5a932025-02-03T01:22:00ZengWileyInternational Journal of Reconfigurable Computing1687-71951687-72092019-01-01201910.1155/2019/73480137348013Automatic Pipelining and Vectorization of Scientific Code for FPGAsSyed Waqar Nabi0Wim Vanderbauwhede1School of Computing Science, University of Glasgow, Glasgow, UKSchool of Computing Science, University of Glasgow, Glasgow, UKThere is a large body of legacy scientific code in use today that could benefit from execution on accelerator devices like GPUs and FPGAs. Manual translation of such legacy code into device-specific parallel code requires significant manual effort and is a major obstacle to wider FPGA adoption. We are developing an automated optimizing compiler TyTra to overcome this obstacle. The TyTra flow aims to compile legacy Fortran code automatically for FPGA-based acceleration, while applying suitable optimizations. We present the flow with a focus on two key optimizations, automatic pipelining and vectorization. Our compiler frontend extracts patterns from legacy Fortran code that can be pipelined and vectorized. The backend first creates fine and coarse-grained pipelines and then automatically vectorizes both the memory access and the datapath based on a cost model, generating an OpenCL-HDL hybrid working solution for FPGA targets on the Amazon cloud. Our results show up to 4.2× performance improvement over baseline OpenCL code.http://dx.doi.org/10.1155/2019/7348013
spellingShingle Syed Waqar Nabi
Wim Vanderbauwhede
Automatic Pipelining and Vectorization of Scientific Code for FPGAs
International Journal of Reconfigurable Computing
title Automatic Pipelining and Vectorization of Scientific Code for FPGAs
title_full Automatic Pipelining and Vectorization of Scientific Code for FPGAs
title_fullStr Automatic Pipelining and Vectorization of Scientific Code for FPGAs
title_full_unstemmed Automatic Pipelining and Vectorization of Scientific Code for FPGAs
title_short Automatic Pipelining and Vectorization of Scientific Code for FPGAs
title_sort automatic pipelining and vectorization of scientific code for fpgas
url http://dx.doi.org/10.1155/2019/7348013
work_keys_str_mv AT syedwaqarnabi automaticpipeliningandvectorizationofscientificcodeforfpgas
AT wimvanderbauwhede automaticpipeliningandvectorizationofscientificcodeforfpgas