Data Parallel C++: Mastering DPC++ for Programming of Heterogeneous Systems using C++ and SYCL

© Intel Corporation 2021

J. Reinders et al.Data Parallel C++https://doi.org/10.1007/978-1-4842-5574-2_6

6. Unified Shared Memory

James Reinders¹ , Ben Ashbaugh², James Brodman³, Michael Kinsner⁴, John Pennycook⁵ and Xinmin Tian⁶

(1)

Beaverton, OR, USA

(2)

Folsom, CA, USA

(3)

Marlborough, MA, USA

(4)

Halifax, NS, Canada

(5)

San Jose, CA, USA

(6)

Fremont, CA, USA

 

The next two chapters provide a deeper look into how to manage data. There are two different approaches that complement each other: Unified Shared Memory (USM) and buffers. USM exposes a different level of abstraction for memory than buffers—USM has pointers, and buffers are a higher-level interface. This ...