Towards Programmable Address Spaces

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Abstract

High-performance computing increasingly makes use of heterogeneous many-core parallelism. Individual processor cores within such systems are radically simpler than their predecessors; and tasks previously the responsibility of hardware, are delegated to software. Rather than use a cache, fast on-chip memory, is exposed through a handful of address space annotations; associating pointers with discrete sections of memory, within trivially distinct programming languages. Our work aims to improve the programmability of address spaces by exposing new functionality within the LLVM compiler, and then the existing template metaprogramming system of C++. This is achieved firstly via a new LLVM attribute, ext\_address\_space which facilitates integration with the non-type template parameters of C++. We also present a type traits API which encapsulates the address space annotations, to allow execution on both conventional and extended C++ compilers; and illustrate its applicability to OpenCL 2.x.

Original languageEnglish
Title of host publicationProceedings of the 2017 Federated Conference on Computer Science and Information Systems
PublisherIEEE
Pages697-700
Number of pages4
ISBN (Electronic)978-83-946253-7-5, 978-83-946253-8-2
ISBN (Print)978-83-946253-9-9
DOIs
Publication statusPublished - 28 Sep 2017
EventWorkshop on Advances In Programming Languages 2017 - Prague, Czech Republic
Duration: 3 Sep 20176 Sep 2017
https://fedcsis.org/2017/wapl

Publication series

NameAnnals of Computer Science and Information Systems
PublisherIEEE
Volume11
ISSN (Print)2300-5963

Workshop

WorkshopWorkshop on Advances In Programming Languages 2017
Abbreviated titleWAPL 2017
Country/TerritoryCzech Republic
CityPrague
Period3/09/176/09/17
Internet address

Keywords

  • address space
  • __global
  • __local
  • __shared
  • OpenCL
  • Clang
  • LLVM
  • Compiler
  • C++
  • C++ Templates
  • Metaprogramming

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