Implementacija knjižnice SYCL za heterogeno računanje

Žužek, Peter (author), Bulić, Patricio (mentor), Slivnik, Boštjan (co-mentor)

Heterogeno računalništvo postaja vedno bolj popularno zaradi zmanjšanega napredka pri hitrosti osredjih procesorjev, izjemne rasti zmogljivosti grafičnih procesorjev in razvoja novih programabilnih čipov, razvitih za specifične naloge. Vendar je programiranje heterogenih sistemov še vedno zapleteno zaradi zelo različne strojne opreme ter potrebe po podvajanju podatkov in sinhronizaciji. Specifikacija SYCL je bila razvita z namenom poenostavitve heterogenega programiranja, kar doseže z naslanjanjem na OpenCL in moderni C++. Odprtokodne implementacije SYCL-a še ni bilo, v čemer smo videli priložnost za razvoj lastne. Odločili smo se, da ne bomo prilagali obstoječih prevajalnikov ali celo razvili novega, temveč nam je uspelo udejaniti velik del specifikacije SYCL tako, da smo razvili generator OpenCL kode, ki prevaja SYCL kodo tik pred izvajanjem, t.j. Just-In-Time. Naše delo je bilo povzeto v članku "An Overview of sycl-gtx", objavljenem na konferenci PPoPP 2016.

• Language: English
• Keywords: SYCL, OpenCL, heterogeno, vzporedno, JIT
• Work type: Master's thesis/paper
• Organization: FRI - Faculty of Computer and Information Science
• Year: 2016
• PID: 20.500.12556/RUL-81053
• Publication date in RUL: 25.03.2016

Secondary language

• Language: Slovenian
• Title: Implementation of the SYCL heterogeneous computing library

Abstract

Heterogeneous computing is becoming more popular with the lack of CPU performance increases, the exceptional rate of GPU performance growth, and the emergence of other programmable computing elements. However, programming heterogeneous systems is still problematic due to differing hardware, explicit data copying, and synchronization. The SYCL specification aims to simplify heterogeneous programming by building on top of OpenCL and employing modern C++. However, there is no open-source implementation of SYCL available, which presented an opportunity for us to develop one. We restricted ourselves to not modify any existing compilers or write new ones, but we managed to implement a large part of the SYCL specification by developing an OpenCL code generator that compiles SYCL code in a Just-In-Time manner. Our work was summarized in an article called "An Overview of sycl-gtx", which was presented at the PPoPP 2016 conference.

• Keywords: SYCL, OpenCL, heterogeneous, parallel, JIT