【2015.08.02】外媒新闻推荐|AMD Zen和格陵兰岛|BiCS 3D NAND闪存|...
本帖最后由 包子侯爵 于 2015-8-2 10:54 编辑闪迪、东芝开始配备BiCS 3D NAND闪存
http://www.kitguru.net/component ... -make-bics-3d-nand/
SanDisk谨慎扩大闪存芯片生产能力
http://www.kitguru.net/component ... duction-capacities/
AMD透露野兽般的x86Zen芯片和拥有HBM2和2.5D插入器的格林兰岛芯片细节（正在全文翻译，请稍后）
http://wccftech.com/amd-exascale ... -32-zen-cores-hbm2/
Title：AMD Reveals the Monsterous ‘Exascale Heterogeneous Processor’ (EHP) with 32 x86 Zen Cores and Greenland HBM2 Graphics on a 2.5D Interposer
From：http://wccftech.com/amd-exascale ... -32-zen-cores-hbm2/
There had been rumors about AMD working on a huge APU with Zen cores and Greenland HBM graphics, something that AMD had hinted upon in its official roadmap. However, it has (finally) officially revealed details about the upcoming APU in a paper submitted to IEEE (Institute of Electrical and Electronics Engineer). The APU, dubbed an “Exascale Heterogeneous Processor” or EHP for short is the mother of all APUs with 32 Zen Cores, an absolutely huge Greenland graphics die and upto 32 GB of HBM2 memory – all on a 2.5D interposer.
之前曾有关于AMD开发的搭载Zen核心和格陵兰岛HBM显示核心的超级APU的传闻。有一些在AMD的官方路线图上。然而在（最终）官方提交给IEEE（电气和电子工程学会）的图纸中有APU的细节。这个APU号称是“百亿亿次的异构处理器（简称EHP）”，拥有32个Zen核心又一个强大的32GB HBM2闪存和2.5D插入器的格陵兰岛显示核心。
Exascale Heterogeneous Processor (EHP) is AMD’s promised monster APU for the HPC segment
百亿亿次的异构处理器（EHP）是AMD的承诺的HPC的怪物级APU
The research in question can be found over here and requires paid access, however we were able to get the relevant piece courtesy of Bitsandchips.it. As you may notice, the diagram is a very simple block diagram that doesn’t really reveal much, except the number of CPU cores. Fortunately for us, AMD’s roadmap and the relevant knowledge of HBM technology makes it almost child’s play to identify the exact parts.
（此处省略N个字）我们从Bitsandclips.it里拿到了一些信息。你可能会质疑道，这是一个很简单的框图，除了CPU核心数量并没有真正透露太多信息。但是幸运的是，有了AMD的路线图和HBM技术的相关知识，我们可以确定切确的位置。
Provided the diagram is drawn accurately, the first thing you will note is that there are exactly 32 “CPU Cores”. Since the EHP (APU) is scheduled for 2016-2017, we are most definitely looking at Zen cores (not to mention Excavator cores wouldn’t fit). I can count 4 dies per stack, and since we are dealing with HBM2 at the very least (given the timeframe), these constitute 4-Hi stacks. HBM2 is 8Gb per die, which equates to 4GB per stack (for a 4-Hi stack) in this diagram or a total of 32 GB HBM2 memory onboard the interposer. That’s not it either, memory can be expanded further via the DDR4 channel present on package.
根据绘制图，我们首先注意到32CPU核心。由于EHP（APU）定于2016-2017年发布，我们都在关注Zen核心（而不是推土机）。我可以指望是4堆HBM2，HBM2单片8GB。（此处略去N个字）内存可以DDR4通道进一步扩展。
As far as the graphics portion of the Exascale Heterogeneous Processor is concerned, what we know for sure is that this will be the next generation Greenland graphics, what we don’t know is how much the exact core count will will be. Since we have no idea how big Zen Cores actually are (or if the diagram is even drawn to scale) it would be unwise to try to reverse engineer the die size of the GPU from the picture. We can safely say however, that this is one of the hugest GPU dies we have encountered so far. If I were to make a wild guess (caution: speculation) for the sake of giving a number I would say the number of stream processors could easily be above 3072 considering we are talking about a lower process and a huge die.
就EHP的图形部分来讲，可以确定是下一代的格陵兰岛显卡，但是内核数量位置。（此处省略N个字）但是我们可以肯定的是，这是我们迄今为止遇到的最庞大的GPU之一。网站小编猜测很大可能会有超过3072个流处理器单元。（此处省略N个字）
This brings us to our third deduction. A 2.5D interposer has been used in the EHP (APU) and the CPU and GPU cores all togethery are too numerous (and huge) to have been manufactured as a single die. Not only would the yields on such a monstrosity be beyond imagining, it would be pretty impossible to manufacture such a thing in the first place. The likely conclusion is therefore, that the two compute and graphic portions of the APU are manufactured separately and put together on the interposer later on in assembly (possibly at UMC’s Fab 12 foundry in Singapore, which is already used to assemble Fiji dies). So basically, AMD is fabricating the compute side of the Scale Heterogeneous Processor (EHP) in dies with 16 Zen cores each, for a total of 2 computing and 1 graphics die assembled on the interposer (ignoring the HBM).
（此处省略N个字）因此可能的结论是，APU的计算和图形部分会分别制造然后再组装（可能在UMC的新加坡晶圆厂，组装Fiji的地方）。因此，AMD制造的EHP会有2个计算芯片（两面各一片）和1个显示核心（忽略HBM）
Now there has been word on the rumor mill about AMD’s HPC APU for quite a long time and we are fairly certain there will be a 16 core variant as well. Previous leaks have indicated that the processor will be constructed using AMD’s Coherent Fabric – which so happens to be a custom interconnect for the purpose of the cores communicating with the Greenland graphics. Each Zen core will have access to 512KB of L2 cache and 4 Zen cores will share 8MB of L3 cache in the ‘Exascale Heterogeneous Processor’. That equates to a grand total of 16MB L2 Cache and 64 MB L3 cache. Each Zen core will be capable of running two threads (thanks to the company’s shift back to SMT) for a total of 64 threads in this huge APU. The processor is thought to have 8 DDR4 channels with a capacity of 256GB per channel.
（此处省略N个字）在HPC中每个Zen核心会获得512KB的二级缓存，4个Zen核心会共享8MB的三级缓存。这相当于总计16MB的二级缓存和64MB的三级缓存。每个Zen核心2线程，总共64线程。处理器被认为有8通道DDR4内存，支持256GB内存。
Unfortunately for the enthusiasts, there is no guarantee that the EHP will trickle down into consumer variants. Infact, I will be genuinely shocked if it does. Even the 16 core variant that was spotted quite a bit earlier would be hard pressed to enter the mainstream segment. In any case, Heterogeneous Processing is an applause worthy approach to handle the HPC problem. Equipped with Greenland class stream processors for parallel workloads and a small army of Zen cores for the rest, this not-so-tiny APU would be handle just about anything. Not to mention, as the name suggests, the Exascale Heterogeneous Processor is built to be scaled to kingdom come, allowing for a truly powerful rival to Intel’s Xeon Phi coprocessors and even the general GPGPU market.
不幸的是，即使是发烧友也不能保证能够得到消费版的EHP。（此处省略N个字）16核心的早期版本也不会进入主流市场。（此处省略N个字）正如名字所暗示的百亿亿次的异构处理器相当于是微缩的王国，可以和Intel’s Xeon Phi计算加速卡甚至GPGPU市场竞争。 {:5_137:}惊天好消息 BillyHerrington 发表于 2015-8-2 12:23
惊天好消息
usb什么来着，忘了 slg孙龙 发表于 2015-8-31 15:56
usb什么来着，忘了
某吧的贴友 但是这图像有很多人
页:
[1]