Thrust如何知道如何自动配置它启动的内核？ [英] How does Thrust know how to automatically configure the kernels it launches?

问题描述

Thrust能够从编码器中隐藏各种细节，并且声称Thrust在某种程度上相对于系统规范设置参数。 Thrust如何选择最佳的参数化，以及如何在不同的机器中处理各种代码？什么是Thrust的实现这样一个通用库的方法？

Thrust is able to hide a variety of details from the coder and it is claimed that Thrust sets the parameters to some degree with respect to the system specifications. How does Thrust choose the best parameterization and how does it handle a variety of codes in different machines? What is Thrust's approach to implementing such a generic library?

推荐答案

Thrust使用启发式尝试最大化CUDA的潜在占用

Thrust uses a heuristic which attempts to maximize the potential occupancy of the CUDA kernels it launches.

启发式Thrust使用的独立版本如下：

A standalone version of the heuristic Thrust uses is here:

https://github.com/jaredhoberock/cuda_launch_config

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