内容简介:Depending on the target platform, some recently published EXT extensions allow sharing memory between different physical devices.
Depending on the target platform, some recently published EXT extensions allow sharing memory between different physical devices.
VK_EXT_external_memory_host enables importing host allocations or host-mapped foreign device memory using a host pointer as the handle.
VK_EXT_external_memory_dma_buf enables importing dma_buf handles on Linux which can possibly come from another physical device.
The spec now also has a table where it's listed which external memory handle types require a matching physical device and which don't.
Additionally, I'd also like to draw your attention to additional features which enable execution control across multiple physical devices. At least on Linux (and possibly other POSIX based systems) semaphores and fences can be shared across physical devices if the FENCE_FD and SYNC_FD handle types are used. These are part of the KHR external semaphore/fence extensions.
扩展 VK_EXT_external_memory_host
在 2018
年 4
月 04
被合并到 Android
主分支,后续的版本可能可以使用这个插件了,这个使得显卡设备可以直接使用 CPU
创建的内存指针,减少内存的拷贝操作。
参考链接
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持 码农网
猜你喜欢:本站部分资源来源于网络,本站转载出于传递更多信息之目的,版权归原作者或者来源机构所有,如转载稿涉及版权问题,请联系我们。
C程序设计(第四版)
谭浩强 / 清华大学出版社 / 2010-6-1 / 33.00元
由谭浩强教授著、清华大学出版社出版的《C程序设计》是一本公认的学习C语言程序设计的经典教材。根据C语言的发展和计算机教学的需要,作者在《C程序设计(第三版)》的基础上进行了修订。 《C程序设计(第4版)》按照C语言的新标准C99进行介绍,所有程序都符合C99的规定,使编写程序更加规范;对C语言和程序设计的基本概念和要点讲解透彻,全面而深入;按照作者提出的“提出问题―解决问题―归纳分析”三部曲......一起来看看 《C程序设计(第四版)》 这本书的介绍吧!