Programiranje vezij FPGA z ogrodjem OpenCL

Palčič, Žan (author), Lotrič, Uroš (mentor)

V diplomskem delu se osredotočamo na testiranje programirljivega vezja s pomočjo programskega ogrodja OpenCL in predstavimo različne optimizacije, ki jih ponuja Alterina razširitev ogrodja OpenCL, lastnosti in načine uporabe ploščice FPGA. Naš cilj v delu je bil ugotoviti, kakšna je učinkovitost sinteze vezja z ogrodjem OpenCL, kakšen je vpliv različnih optimizacij na učinkovitost izvajanja ščepcev, in rezultate primerjati z izvajanjem na grafično procesni enoti. Uporabo ogrodja OpenCL na vezju FPGA smo analizirali z implementacijo nenatančnega množilnika, matričnega množenja, Sobelovega filtra in rezanja šivov. To smo implementirali v splošnejši obliki, za izvajanje na več arhitekturah, in v optimizirani obliki, za izvajanje le na vezjih FPGA.

• Language: Slovenian
• Keywords: OpenCL, FPGA, VHDL, heterogeni sistemi, rezanje šivov, Sobelov filter
• Work type: Bachelor thesis/paper
• Organization: FRI - Faculty of Computer and Information Science
• Year: 2016
• PID: 20.500.12556/RUL-91235
• Publication date in RUL: 27.03.2017

Secondary language

• Language: English
• Title: Programming FPGA circuits with OpenCL framework

Abstract

Main focus of our thesis is testing FPGA circuit with OpenCL framework. The thesis presents different optimization methods that extends OpenCL framework, features of FPGA board, and overview of different programming designs with FPGA board. Our aim is to determine the OpenCL compiler's efficiency while translating high-level kernels to low-level circuit, impact of various optimizations on kernel's runtime and compare results with performance on the graphics processing unit. We analyse designs build with OpenCL on FPGA circuit through implementations of approximate multiplier, matrix multiplication, Sobel filter, and Seam carving. Mainly, the implementations are device independent, for executing kernels on many different architectures, while some of them are optimized for FPGAs only.

• Keywords: OpenCL, FPGA, VHDL, Heterogeneous systems, Seam carving, Sobel filter