May 2022
Intermediate to advanced
580 pages
18h 32m
English
book
Programming Massively Parallel Processors, 4th Edition
by Wen-mei W. Hwu, David B. Kirk, Izzat El Hajj
Content preview from Programming Massively Parallel Processors, 4th Edition
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Chapter 12
Merge
An introduction to dynamic input data identification
With special contributions from Li-Wen Chang and Jie Lv
Abstract
This chapter introduces the ordered merge pattern whose parallelization requires each thread to dynamically identify its input position ranges. Because the input ranges are data dependent, we resort to a fast search implementation of the co-rank function to identify the input range for each thread. The fact that the input ranges are data dependent also creates extra challenges when we use tiling technique to conserve memory bandwidth and enable memory coalescing. As a result, we introduce the use of circular buffers to allow us to make full use of the data loaded from global memory. We have shown that introducing ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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