Tag Archives: computer architecture

AMD launches Trinity processors: the Ivy Bridge alternative

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Trinity is being aimed at ultrathin notebooks (not to be confused with Intel Ultrabooks), smaller form factor desktops and All-in-Ones, though traditional mainstream laptops and desktops will also see Trinity APUs. AMD will be launching five APUs today. The A10-4600M, A8-4500M, and A6-4400M are aimed at larger, mainstream notebooks, while the A10-4655M and A6-4455M are destined for sleeker ultrathin models.

AMD’s Trinity APUs will mark the debut of the company’s Piledriver microarchitecture, the successor to the ill-received Bulldozer. Trinity is still based on a 32nm process — Intel, by contrast, recently moved to 22nm with Ivy Bridge. Trinity’s die size is actually a bit larger than Llano’s: 246 square millimeters, compared to the first generation APU’s 228 square millimeters. Trinity also features a higher transistor count at 1.3 billion, but dials the TDP for its notebook variants down to 17W for dual-core CPUs, and 35W for quad-core CPUs, the same as Ivy Bridge — Llano APUs required 35W and 45W for dual- and quad-core, respectively. Desktop Trinity remain at the same 65 to 100W of its Llano predecessors. AMD claims that the dual-core Trinity APU will perform at the same level as the dual-core Llano APU, effectively doubling the performance per watt with the new generation. AMD also claims that Trinity notebooks can expect as 12 hours of battery life (when idle) on their energy efficient Piledriver cores.

via AMD launches Trinity processors: the Ivy Bridge alternative | The Verge.

China plans national, unified CPU architecture

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According to reports from various industry sources, the Chinese government has begun the process of picking a national computer chip instruction set architecture (ISA). This ISA would have to be used for any projects backed with government money — which, in a communist country such as China, is a fairly long list of public and private enterprises and institutions, including China Mobile, the largest wireless carrier in the world. The primary reason for this move is to lessen China’s reliance on western intellectual property.

via China plans national, unified CPU architecture | ExtremeTech.

The other option, of course, is developing a brand new ISA — a daunting task, considering you have to create an entire software (compiler, developer, apps) and hardware (CPU, chipset, motherboard) ecosystem from scratch. But, there are benefits to building your own CPU architecture. China, for example, could design an ISA (or microarchicture) with silicon-level monitoring and censorship — and, of course, a ubiquitous, always-open backdoor that can be used by Chinese intelligence agencies. The Great Firewall of China is fairly easy to circumvent — but what if China built a DNS and IP address blacklist into the hardware itself?

Intel Core i7-3770K Review: A Small Step Up For Ivy Bridge : Ivy Bridge: Was It Worth The Wait?

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Intel built Sandy Bridge-based chips in three different configurations: one quad-core and two dual-core designs. The most complex implementation included 995 million transistors in a 216 mm² piece of silicon. In comparison, the biggest Ivy Bridge die incorporates 1.4 billion transistors on a 160 mm² die.

via Intel Core i7-3770K Review: A Small Step Up For Ivy Bridge : Ivy Bridge: Was It Worth The Wait?.

All told, Ivy Bridge is yet another highly integrated processor design from Intel. Its pieces were constructed by independent teams throughout the world—engineers in Israel are responsible for the IA cores, a team in Folsom, CA built the graphics engine, and a second team in Folsom implemented the interconnects, cache, and system agent. Of course, a process development group up in Oregon made sure it’d all come together on the new 22 nm node.

Xeon E5-2600 Review

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http://www.anandtech.com/show/5553/the-xeon-e52600-dual-sandybridge-for-servers

Intel’s Sandy Bridge architecture was introduced to desktop users more than a year ago. Server parts however have been much slower to arrive, as it has taken Intel that long to transpose this new engine into a Xeon processor. Although the core architecture is the same, the system architecture is significantly different from the LGA-1155 CPUs, making this CPU quite a challenge, even for Intel.

 

IBM Parallel Sysplex

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In computing, a Parallel Sysplex is a cluster of IBM mainframes acting together as a single system image with z/OS. Used for disaster recovery, Parallel Sysplex combines data sharing and parallel computing to allow a cluster of up to 32 systems to share a workload for high performance and high availability.

via IBM Parallel Sysplex – Wikipedia, the free encyclopedia.

ARM Discloses Technical Details Of The Next Version Of The…

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“The current growth trajectory of data centers, driven by the viral explosion of social media and cloud computing, will continue to accelerate. The ability to handle this data increase with energy-efficient solutions is vital,” said Vinay Ravuri, vice president and general manager of AppliedMicro’s Processor Business Unit. “The ARM 64-bit architecture provides the right balance of performance, efficiency and cost to scale to meet these growing demands and we are very excited to be a leading partner in implementing solutions based on the ARMv8 architecture.”

via ARM Discloses Technical Details Of The Next Version Of The… – ARM.

CPU Startup Combines CPU+DRAM

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There are three limiting factors, or walls, that limit the scaling of modern microprocessors. First, there’s the memory wall, defined as the gap between the CPU and DRAM clock speed. Second, there’s the ILP (Instruction Level Parallelism) wall, which refers to the difficulty of decoding enough instructions per clock cycle to keep a core completely busy. Finally, there’s the power wall–the faster a CPU is and the more cores it has, the more power it consumes.

via CPU Startup Combines CPU+DRAM – HotHardware.

When your CPU has fewer transistors than an architecture that debuted in 1986, it’s a good chance that you left a few things out–like an FPU, branch prediction, pipelining, or any form of speculative execution. Venray may have created a chip with power consumption an order of magnitude lower than anything ARM builds and more memory bandwidth than Intel’s highest-end Xeons, but it’s an ultra-specialized, ultra-lightweight core that trades 25 years of flexibility and performance for scads of memory bandwidth.

How Samsung Just Screwed Over About 10 Million Of Its Android Phone Customers

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That means ~10 million people who bought the phone are going to be stuck on the outdated version 2.3 Gingerbread (or 2.2 Froyo in many cases) until they decide to drop more cash on a new phone.

via How Samsung Just Screwed Over About 10 Million Of Its Android Phone Customers – Business Insider.

It’s pointless to support old hardware on phones.  I wonder why this is even an issue?

This is an interesting point I didn’t know and relates to computer architecture.

It also demonstrates the inherent problem in Android phone manufacturers customizing the OS to the point where you can barely recognize Google’s original intentions for design and functionality. Those skins are such a tax on a phone’s hardware that it cripples functionality and makes it so all but the newest phones miss out on updates. So far, Samsung only guarantees Ice Cream Sandwich for its Galaxy S II phones. The Nexus S, which is also made by Samsung and shares similar hardware specs as many Galaxy S phones, will get the Ice Cream Sandwich update, but only because it uses a pure version of Android without the TouchWiz skin. Motorola only guarantees it for its latest Droid Razr. And HTC will issue Ice Cream Sandwich for the Rezoundsome time next year.

Education | parallel.illinois.edu

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For this reason, education is among the primary missions of the Parallel Computing Institute. With offerings ranging from complete curricula in parallel computing through the departments of Electrical and Computer Engineering and in Computer Science, to just-in-time workshops and seminars, PCI offers a broad selection of options for students and professionals and collaborates with organizations such as the CUDA Center of Excellence, the Universal Parallel Computing Research Center, the Cloud Computing Testbed, and NCSA, among others, to make their offerings widely available.

via Education | parallel.illinois.edu.