Primerjava univerzalnih knjižnic za grafične pospeševalnike

Purgar, Vid (author), Lotrič, Uroš (mentor)

V diplomskem delu obravnavamo univerzalne knjižnice za vzporedno programiranje v jezikih C in C++ s poudarkom na ogrodjih OpenCL in SYCL. Pristop OpenCL na nizki ravni ponuja natančen nadzor nad heterogenimi računskimi napravami, medtem ko abstrakcija SYCL omogoča pisanje programov za vzporedno računanje na višji ravni v jeziku C++. Ogrodji smo testirali na treh algoritmih, ki pokrijejo področja, za katera se najpogosteje uporabljajo grafične procesne enote, to so računanje zgoščenih vrednosti, obdelava slik ter učenje nevronskih mrež. Rezultati so pokazali, da je bila rešitev, napisana s pomočjo ogrodja OpenCL v vseh treh primerih hitrejša kot rešitev, napisana s pomočjo ogrodja SYCL, pri kateri pa je bila koda precej krajša in bolj pregledna.

• Language: Slovenian
• Keywords: grafični pospeševalniki, OpenCL, SYCL, vzporedno računanje
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FRI - Faculty of Computer and Information Science
• Year: 2023
• PID: 20.500.12556/RUL-149231
• COBISS.SI-ID: 164767491
• Publication date in RUL: 05.09.2023

Secondary language

• Language: English
• Title: Comparison of universal libraries for graphics accelerators

Abstract

This paper is about universal libraries for parallel programming in C and C++, focusing on OpenCL and SYCL. The low-level approach of OpenCL offers precise control over heterogeneous devices, while the abstraction of SYCL allows for writing of higher-level parallel computing programs in C++. We tested the two frameworks on three algorithms covering the areas most commonly used by GPUs, which are computing hash values, image processing and training neural networks. The results showed that the algorithm written using the OpenCL framework outperformed the algorithm written using the SYCL framework for all three algorithms in terms of speed, but the SYCL framework required less code and had better readability.

• Keywords: graphics accelerators, OpenCL, SYCL, parallel computing