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GPU Computing Gems Emerald Edition
book

GPU Computing Gems Emerald Edition

by Wen-mei W. Hwu
January 2011
Intermediate to advanced content levelIntermediate to advanced
886 pages
28h 35m
English
Morgan Kaufmann
Content preview from GPU Computing Gems Emerald Edition
Chapter 38. Parallel LDPC Decoding
Gabriel Falcao, Vitor Silva and Leonel Sousa
In this chapter we present a pair of kernels to decode a class of powerful error-correcting codes, known as low-density parity-check (LDPC) codes, on graphics processing units (GPU). The proposed parallel implementations adopt a compact data structures representation to access data, while the processing on the GPU grid efficiently exploits a balanced distribution of the computational workload. Moreover, we have analyzed different levels of thread coarsening and propose an efficient one, which balances computation and memory accesses. This case study shows that by adopting these practical techniques, it is possible to use the GPU's computational power to perform this ...
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Publisher Resources

ISBN: 9780123849885