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    Old 9th November 2018, 18:34   #81  |  Link
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    AVX with 128-bit registers has small minor benefits, usually because there happen to be some instrustrictons that may do the job better, and because AVX allows more efficient use of some other instructions (ie. distinct destination registers for some instructions, instead of an implied one). The differences to SSE1/2/3/4.1 versions of the same code (which also are 128-bit) is relatively small, maybe 5-10% (for a single given function), while doubling the register size to 256 can in an ideal case of course be up to twice as fast.
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    Old 10th November 2018, 09:35   #82  |  Link
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    Intel's strong PR and marketing teams are trying really hard with tons of money behind them to persuade people that more cores are useless or at least not necessary.

    It's the same old story for the dark ages of 2011 - 2017 era, when the same teams were telling us that the Core i3 2C/4T - Core i5 4C/4T - Core i7 4C/8T scheme is the best that we could ever had.

    No more than 4 cores for mainstream desktop, ordered Intel.

    If you wanted more, you should pay 2000$ to buy 10 cores of Broadwell-E 6950X in 2017.

    On March 2017 a world revolution took place.

    The revolution of Zen architecture and the first implementation of RyZen processor for mainstream desktop, using 8C/16T in a very affordable price of 350$ - 500$ (initially)

    Nowadays, you can buy 32C/64T for 1800$ from AMD, when Intel still sells 18C/36T for 2000$ - even this means 80% more cores for the same price just a year later for Intel.

    Cascade-AP, a one-off processor from Intel, mimicks the Zen first generation architecture for servers (EPYC) and rises the sum of cores to 48 from 28 of Skylake-EP using GLUE (as Intel called Infinity Fabric of Zen architecture) to add two Skylake 24C processors to one Cascade 48C.

    Intel is trying hard to be as less humiliated as possible compared to the absolute monster of EPYC 2, a multi-die (8+1) CPU of 64C/128T adding PCIe v4.0 and Infinity Fabric 2 to the equation.

    Intel guys, please relax...

    If you can't avoid something, just enjoy it.

    It's coming!
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    Old 11th November 2018, 14:30   #83  |  Link
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    Quote:
    Originally Posted by Atak_Snajpera View Post
    Looks like there are some serious issues with scheduler in windows. 5 instances of x265 running and 2990WX just chokes


    Source -> https://www.xfastest.com/thread-221870-1-1.html
    Is there actually an updated benchmark with adjusted numa pools or did anybody check if this gives an performance improvement for the 2990WX?

    Code:
    Instance 1 = --numa-pools "+,-,-,-" 
    Instance 2 = --numa-pools "-,+,-,-"
    Instance 3 = --numa-pools "-,-,+,-"
    Instance 4 = --numa-pools "-,-,-,+"
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    Old 11th November 2018, 18:37   #84  |  Link
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    Do you have access to 2990wx?
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  • “创新从来都是九死一生”(人民论坛) 2019-02-14
  • 端午假期广州铁路运客640.5万人次 创历史新高 2019-02-14
  • 19次生态输水让塔河下游生机勃勃 2018-11-22
  • 男篮再胜伊朗迎热身赛两连胜 任骏飞19+11陶汉林18分 2018-11-22
  • 小卒子,你南街村的代言人啊?扮豬不咋像呢!你滴,大大滴,明白? 2018-11-22
  • 女性之声——全国妇联 2018-11-21
  • 新华网评:凝聚打赢脱贫攻坚战的强大合力 2018-11-21
  • 栗战书:执法检查要直面问题不搞评功摆好 让法律制度成为不可触碰的高压线 2018-11-21
  • 这些水果越新鲜越不能吃 放一放更好吃 2018-11-21
  • 生产资料公有制不会也不可能涉及生产资料的分配,这完全是你杜撰的,是强词夺理的。从这点看,你的所谓逻辑是幼稚可笑的。哈哈哈哈! 2018-11-20
  • 践行“两山论”是一场发展的革命 2018-11-20
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