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
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语言算法速查手册
程晓旭、耿鲁静、张海、王勇 / 2009-10 / 49.00元
《C语言算法速查手册》用C语言编写了科研和工程中最常用的166个算法，这些算法包括复数运算、多项式的计算、矩阵运算、线性代数方程组的求解、非线性方程与方程组的求解、代数插值法、数值积分法、常微分方程（组）初值问题的求解、拟合与逼近、特殊函数、极值问题、随机数产生与统计描述、查找、排序、数学变换与滤波等。同时结合这些算法列举了将近100个应用实例，对其进行验证和分析。 《C语言算法速查手册》适......一起来看看 《C语言算法速查手册》 这本书的介绍吧!
