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CUDA中不同块内线程的分歧

[英]Divergence in threads within different blocks in CUDA

原文 2015-12-18 06:58:07 8 1 cuda/ gpu

不同块/ warp中线程的分歧是低效还是仅在分歧处于同一块/ warp时？

1 个解决方案

Divergency is only withing a warp. 发散性只是一种扭曲。
Warps within a block can take different branches without diverging. 块内的变形可以采用不同的分支而不会发散。
See CUDA Programming Guide Chapter 4.1 参见CUDA编程指南第4.1章

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CUDA-块和线程 - CUDA - Blocks and Threads

CUDA线程和块说明 - CUDA threads and blocks explanation

CUDA线程和块 - cuda threads and blocks

流式多处理器、块和线程 (CUDA) - Streaming multiprocessors, Blocks and Threads (CUDA)

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CUDA 块和线程与 SMP 之间的关系 - Relation Between CUDA Blocks and Threads and SMPs

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