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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Exploration of FPGA-Based Hardware Designs for QR Decomposition for Solving Stiff ODE Numerical Methods Using the HARP Hybrid Architecture

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Oliveira de Souza Junior, Carlos Alberto [1] ; Bispo, Joao [2, 3] ; Cardoso, Joao M. P. [2, 3] ; Diniz, Pedro C. [4] ; Marques, Eduardo [1]
Total Authors: 5
[1] Univ Sao Paulo, Inst Math & Comp Sci, BR-13566590 Sao Carlos - Brazil
[2] Univ Porto, Fac Engn, Dept Informat Engn, P-4200465 Porto - Portugal
[3] INESC TEC, P-4200465 Porto - Portugal
[4] INESC ID, P-1000029 Lisbon - Portugal
Total Affiliations: 4
Document type: Journal article
Source: ELECTRONICS; v. 9, n. 5 MAY 2020.
Web of Science Citations: 0

In this article, we focus on the acceleration of a chemical reaction simulation that relies on a system of stiff ordinary differential equation (ODEs) targeting heterogeneous computing systems with CPUs and field-programmable gate arrays (FPGAs). Specifically, we target an essential kernel of the coupled chemistry aerosol-tracer transport model to the Brazilian developments on the regional atmospheric modeling system (CCATT-BRAMS). We focus on a linear solve step using the QR factorization based on the modified Gram-Schmidt method as the basis of the ODE solver in this application. We target Intel hardware accelerator research program (HARP) architecture with the OpenCL programming environment for these early experiments. Our design exploration reveals a hardware design that is up to 4 times faster than the original iterative Jacobi method used in this solver. Still, even with hardware support, the overall performance of our QR-based hardware is lower than its original software version. (AU)

FAPESP's process: 13/07375-0 - CeMEAI - Center for Mathematical Sciences Applied to Industry
Grantee:José Alberto Cuminato
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 19/08153-7 - Mapping and evaluation of parallel solution for stiff Ordinary differential equations on heterogeneous architectures based on FPGAs
Grantee:Carlos Alberto Oliveira de Souza Junior
Support type: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 17/14268-6 - Mapping and evaluation of ordinary differential equations on heterogeneous architectures
Grantee:Carlos Alberto Oliveira de Souza Junior
Support type: Scholarships in Brazil - Doctorate