Subject: General Tech | September 5, 2012 - 03:49 PM | Jeremy Hellstrom
Tagged: Xeon Phi, xeon, larrabee, knights corner, Intel, hot chips
The Register is back with more information from Hot Chips about Intel's Xeon Phi coprocessor, which seems to be much more than just a GPU in drag. Inside the shell you will find at least 50 cores and at least 8GB of GDDR5 graphics, wwith the cores being very heavily modified 22-nanometer Tri-Gate process Pentium P54C chips clocked somewhere between 1.2-1.6GHz. There is a brand new Vector Processing Unit which processes 512-bit SIMD instructions and sports an Extended Math Unit to handle calculations with hardware not software. Read on for more details about the high-speed ring interconnects that allow these chips to communicate among themselves and with the Xeon server it will be a part of.
"Intel has been showing off the performance of the "Knights Corner" x86-based coprocessor for so long that it's easy to forget that it is not yet a product you can actually buy. Back in June, Knights Corner was branded as the "Xeon Phi", making it clear that Phi was a Xeon coprocessor even if it does not bear a lot of resemblance to the Xeon processors at the heart of the vast majority of the world's servers."
Here is some more Tech News from around the web:
- Intel announces two software development suites @ The Inquirer
- Samsung Windows 8 notebook remarkably similar to Asustek Taichi @ DigiTimes
- ZTE plans for 11in 2560x1600 tablet @ The Inquirer
- Acer to launch Windows Phone 8 smartphone in 2013 @ The Register
- Belkin 7-port USB 2.0 Hub F5U307-BRN Review @ PCSTATS
- BIOSTAR Joint Contest @ NikKTech
Subject: General Tech | August 31, 2012 - 02:43 PM | Jeremy Hellstrom
Tagged: Intel, xeon, Xeon Phi, hot chips, larrabee
The Xeon Phi is not Larrabee but it does give a chance to remind people that Intel did at one time swear we would be seeing huge results from a lot of strung together Pentium chips. Nor is Many Integrated Cores the same as AMD's Magny-cours, although you can be forgiven if that thought popped into your head. Instead the Xeon Phi is a co-processor that will have 50 or more 512-bit SIMD architecture based processors, each with 512KB of Level 2 cache. These cores are comparatively slow on their own but have been designed to spread tasks over dozens of cores for parallel processing to make up for the lack of individual power. Intel sees Phi as a way to create HPC servers which will be physically smaller than one based solely on traditional Xeon based servers as well as being more efficient. There is still a lot more we need to learn about these chips; until then you can check out The Inquirer's article on Intel's answer to NVIDIA and AMD's HPC cards.
"CHIPMAKER Intel revealed some architectural details of its upcoming Xeon Phi accelerator at the Hotchips conference, saying that the chip will feature 512-bit SIMD units."
Here is some more Tech News from around the web:
- IFA: Asus Taichi notebook tablet video demo @ The Inquirer
- TSMC to see revenues decline in August-September @ DigiTimes
- Microsoft fails to pacify PC vendors about Surface table @ DigiTimes
- Super-critical Java zero-day exploits TWO bugs @ The Register
- Guru3D Rig of the Month - August 2012
- AMD Pushes Steamroller and Excavator Forward, Bullish about Performance Increases @ VR-Zone
- Applied Micro's X-Gene server chip ARMed to the teeth @ The Register
- Camera Lens Buying Guide @ TechARP
- Win a Fractal Design Define R4 Case for Free! @ Hardware Secrets
Subject: Processors | June 19, 2012 - 11:46 AM | Josh Walrath
Tagged: Xeon Phi, xeon e5, nvidia, larrabee, knights corner, Intel, HPC, gpgpu, amd
The one positive thing for Intel’s competitors is that it seems their enthusiasm for massively parallel computing is justified. Intel just entered that ring with a unique architecture that will certainly help push high performance computing more towards true heterogeneous computing.
Subject: Systems | June 21, 2011 - 03:52 AM | Tim Verry
Tagged: supercomputing, mic, larrabee, knights corner, Intel
Silicon Graphics International and Intel recently announced plans to reach exascale levels of computational power within ten years. Exascale computing amounts to computers that are capable of delivering 1,000+ petaflops (One exaflop is 1000 petaflops) of computational horsepower to process quintillions of calculations. To put that in perspective, today’s supercomputers are just now breaking into the level of single-digit petaflop performance, with the fastest supercomputer delivering 8.16 petaflops. It is capable of this thanks to many thousands of eight core CPUs, whereas other top 500 supercomputers are starting to utilize a CPU and GPU combination in order to achieve petaflop performance.
The Aubrey Isle Silicon Inside Knights Corner
This partnering of Central Processing Unit (CPU) and GPU (or other accelerator) allows high performance supercomputers to achieve much higher performance than with CPUs alone. Intel CPUs power close to 80% of the top 500 Supercomputers; however, they have begun to realize that specialized accelerators are able to speed up highly parallel computing tasks. Specifically, Intel plans to combine Xeon processors with successors to their Knights Corner Many Integrated Core accelerator to reach exascale performance levels when combined with other data transfer and inter-core communication advancements. Knights Corner is an upcoming successor to the Knights Ferry and Larrabee processors.
Computer World quotes Eng Lim Goh, the CTO of SGI, in stating that “Accelerators such as graphics processors (GPUs) are currently being used with CPUs to execute more calculations per second. While some accelerators achieve desired results, many are not satisfied with the performance related to the time and cost spent porting applications to work with accelerators.”
Knights corner will be able to run x86 based software and features 50 cores based on a 22nm manufacturing process. Each core will run four threads at 1.2 GHz, have 8 MB of cache, and will be supported by 512 bit vector processing units. It’s predecessor, Knights Ferry is based on 32 45nm cores and eight contained in a Xeon server and are capable of 7.4 teraflops. Their MIC chip is aimed directly at NVIDIA’s CUDA and AMD’s OpenCL graphics processors, and is claimed to offer performance in addition to ease of use as they are capable of running traditional x86 based software.
It looks like the CPU-only supercomputers will be seeing more competition from GPU and MIC accelerated supercomputers, and will eventually be replaced at the exascale level. AMD and NVIDIA are betting heavily on their OpenCL and CUDA programmable graphics cards while Intel is going with a chip capable of running less specialized but widely used x86 programmable chips. It remains to be seen which platform will be victorious; however, the increased competition should hasten the advancement of high performance computing power. You can read more about Intel’s plan for Many Integrated Core accelerated supercomputing here.
Subject: General Tech | June 20, 2011 - 12:11 PM | Jeremy Hellstrom
Tagged: Intel, mic, larrabee, knights corner, 50 GPGPU
Knights Corner is not exactly Larrabee but the idea behind both are very similar. A large number of GPGPUs are integrated with a CPU, Intel is using a Xeon core now as opposed to a Pentium; with the GPGPUs hooked up in a similar method to Larrabee's ring of Pentium cores. The design is proven as they have sold units of the previous generation Kights Ferry and offers a feature that a lot of programmers are going to appreciate; instead of needing to learn a new language like CUDA or OpenCL, standard x86 scalar code is used to program these chips. This architecture is also expected to scale very well, for as ARM recently pointed out only specific multithreaded applications continue to scale well as more cores are added. Drop by The Inquirer for more information.
They will likely be sold as PCIe card like the Knights Ferry card pictured above.
"CHIPMAKER Intel has announced its second generation hybrid core technology codenamed 'Knights Corner'.
Knights Corner is Intel's second chip in its Many Integrated Core (MIC) chip line and will feature Xeon X86 cores and more than 50 GPGPU cores loosely based on what was previously known as Larrabee. Knights Corner will be fabricated using Intel's 22nm tri-gate process node beginning in 2012, though the firm would not be drawn on the exact core count at this time."
Here is some more Tech News from around the web:
- Japan's 8-petaflop K Computer Is Fastest On Earth @ Slashdot
- Intel admits that Moore's Law is not enough @ The Inquirer
- When WiFi doesn't work: a guide to home networking alternatives @ Ars Technica
- Western Digital Livewire PowerLine AV Kit @ TechwareLabs
- US reveals Stuxnet-style vuln in Chinese SCADA 'ware @ The Register
- Adobe offloads unwanted Linux AIR onto OEMs @ The Register
- Designcord 5 Metre Autorewind Cable Reel Extension Lead Review @ eTeknix
- x264 HD Benchmark 4.0 @ TechARP
- ArtRage: quality digital painting on the cheap @ Ars Technica
- Ultra Simple 360-degree Photo Hack @ Make
- AMD Developer Summit lacks Bulldozer details @ The Inquirer
- Nokia Connections 2011 - Our Expectations @ t-break
- DreamHack Summer Festival kicks off! Day One! @ eTeknix
- Interview with Ziad Matar of Qualcomm @ t-break
- Patriot Xporter XT Rage 32GB Flash Drive Giveaway! @ ThinkComputers
- Weekly Giveaway #2: Foxconn Flaming Blade GTI, Innergie mCube Lite, SteelSeries Spectrum AudioMixer, StarTech ExpressCard eSATA Controller Adapter Card @ eTeknix
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