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AMD为GCC编译器带来Zen 4“Znver4”初步支持 启用AVX-512指令集_我的网站
一 | （via Phoronix）本周早些时候，AMD 发布了 GNU 编译器集合（GCC）的基础支持代码，扩展了对 Zen 4 微架构的支持。 Two people narrowly survived as their plane veered out of control and burst into flames following a barely-controlled descent onto a Southern California freeway on Tuesday, video shows.,I-91 Crash Landing: Dramatic video obtained by KTLA shows the single-engine Piper Cherokee dropping from the sky, hitting the freeway, and then leaving a trail of burning fuel as it slides toward the sound barrier. Full Video Here: https://t.co/XBQF4QxzsX pic.twitter.com/G90KX5dnN0— KTLA (@KTLA) August 10, 2022,No injuries were reported when the single-engine Piper Cherokee PA-32 tumbled from the sky around midday and bounced across the pavement on Freeway 91 in Corona before hitting a retaining wall and catching fire. Local media notes that a vehicle was struck by the plane in the mayhem, but that the only damage consisted of a broken taillight.,Reportedly, fire crews which raced to the scene were onsite within five minutes and managed to put out the blaze within the hour. Footage posted by the Corona Fire Department shows thick plumes of smoke coming from the wreckage until the team is able to extinguish it with firefighting foam.,On-scene footage from Corona Engine 3 as they arrived on scene to the plane crash on the 91 Eastbound in Corona. #PlaneCrash #91freeway #Corona #CoronaFire pic.twitter.com/a0DwwV4aOB— Corona Fire Dept #CoronaFire (@CoronaFireDept) August 9, 2022,Per the Federal Aviation Administration, the plane was “flying to Corona Municipal Airport” when “the pilot reported an engine issue.” Apparently unable to maintain the necessary altitude, they say the occupants elected instead to attempt an emergency landing on the freeway. Much to the relief of his fellow California motorists, the pilot managed to pull it off.。相信随着时间的推移，该公司还会带来与 Znver4 相关的更多改进。更新后的 Zenver4 基础启用补丁，与 Zenver3 基本相同、但添加了对 AVX-512 新指令集的支持 —— 即 AVX512F、AVX512DQ、AVX512IFMA、AVX512CD、AVX512BW、AVX512VL、AVX512BF16、AVX512VBMI、AVX512VBMI2、GFNI、 AVX512VNNI、AVX512BITALG 和 AVX512VPOPCNTDQ。（来自：LKML）除了 AVX-512，Zen 4 相较于 Zen 3 的架构差异并不大。不过相较于消费级市场，这项特性显然更适用于新一代 EPYC（霄龙）Genoa 服务器平台的使用场景。当然，对于要求不高的中小型企业，依然可借助支持 AVX-512 的 Ryzen 7000 系列处理器，来适当降低业务系统的构建成本。
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