MulticoreInfo.com header image 4

Entries from September 2011

Writing Energy-Efficient Software

September 21st, 2011 · 1 Comment

by Bob Steigerwald, Chris D. Lucero, Chakravarthy Akella and Abhishek R. Agrawal, Intel Corporation
Abstract
In his article “Harnessing Green IT: Principles and Practices,” San Murugesan (Murugesan, 2008) defines the field of green computing as “the study and practice of designing, manufacturing, using, and disposing of computers, servers, and associated subsystems—such as monitors, printers, storage devices, and [...]

[Read more →]

Tags: MulticoreInfo

Impact of Software on Energy Consumption

September 20th, 2011 · 1 Comment

by Chris D. Lucero, Chakravarthy Akella and Abhishek R. Agrawal, Intel Corporation
Abstract
Software causes computers to consume energy but how much energy should they use? Have you ever wished that the battery in your laptop, tablet, or mobile phone would last longer than it does? Wouldn’t it be great if your business could save money on [...]

[Read more →]

Tags: MulticoreInfo

An Intro to Microsoft’s C++ AMP

September 16th, 2011 · 1 Comment

by Daniel Moth and Yossi Levanoni
Using C++ Accelerated Massive Parallelism, Microsoft’s new tools for GPU computation.
Over the past few years, some developers have started to take advantage of the power of GPU hardware in their apps. In other words, from their CPU code, they have been offloading parts of their app that are compute intensive [...]

[Read more →]

Tags: MulticoreInfo

Intel makes the case for more cores at IDF 2011

September 16th, 2011 · 1 Comment

By John Morris, ZDNet
On the final day of the Intel Developer Forum, CTO Justin Rattner made the case for more powerful PCs and servers with tens or even hundreds of processing cores.
On the final day of the Intel Developer Forum this week, CTO Justin Rattner made the case for more powerful computers, or more specifically [...]

[Read more →]

Tags: MulticoreInfo

Deep inside Intel’s ‘Ivy Bridge’ chip

September 16th, 2011 · No Comments

By Rik Myslewski, The Register
Intel’s next-generation “Ivy Bridge” chips will include a host of improvements, including integrated graphics that the company claims will narrow the lead now held by AMD’s Fusion APUs.
“I expect that that gap, from everything that I’ve seen, is closing fast,” Intel’s director of graphics architecture Tom Piazza told an Ivy Bridge [...]

[Read more →]

Tags: MulticoreInfo

Chip-level advances that may change computing

September 16th, 2011 · No Comments

By Brian Nadel
Imagine a world with electronic devices that can power themselves, music players that hold a lifetime of songs, self-healing batteries, and chips that can change abilities on the fly. Based on what’s going on in America’s research laboratories, these things are not only possible, but likely.
“The next five years will be a very [...]

[Read more →]

Tags: MulticoreInfo

Intel and Micron Develop Hybrid Memory Cube, Stacked DRAM is Coming

September 16th, 2011 · 1 Comment

by Anand Lal Shimpi, AnandTech
During the final keynote of IDF, Intel’s Justin Rattner demonstrated a new stacked DRAM technology called the Hybrid Memory Cube (HMC). The need is clear: if CPU performance is to continue to scale, there can’t be any bottlenecks preventing that scaling from happening. Memory bandwidth has always been a bottleneck we’ve [...]

[Read more →]

Tags: MulticoreInfo

World’s fastest CPU (AMD’s FX) clocked at 8.429GHz

September 16th, 2011 · 1 Comment

AMD’s FX chips have set a new world record for the fastest cpu, winning the company a place in the Guiness World Records.
The company’s yet to ship Bulldozer based FX chips were overclocked at speeds up to 8.429GHz, beating the prior record of 8.309GHz.

[Read more →]

Tags: MulticoreInfo

IBM Patent Filing Details First 100 PFlop Computer

September 16th, 2011 · 1 Comment

by Wolfgang Gruener
An IBM patent filing sheds light on the architecture of the upcoming BlueGene/Q “Sequoia” system, as well as a potential successor, which is could become the first 100 PFlop supercomputer: The system will have almost 8.4 million compute cores which will consume almost 16 MW.

[Read more →]

Tags: MulticoreInfo

Intel’s Parallel JS lights road to many-core future

September 16th, 2011 · 1 Comment

by Rick Merritt
Intel Corp. released open source code for Parallel JS, a data-parallel version of Javascript in an effort to help mainstream programmers harness multicore processors.
The tool marks one small step on a long journey to the many-core future, said Intel chief technology officer Justin Rattner in an interview with EE Times. In a [...]

[Read more →]

Tags: MulticoreInfo

Computing energy efficiency keeps pace with Moore’s Law

September 14th, 2011 · No Comments

By Ted Samson, InfoWorld
Since 1965, Moore’s Law has served as a benchmark for the computer hardware industry, pushing vendors to double the processing power of computing equipment every 18 months or so. It turns out that computers have doubled in energy efficiency at about the same rate, according to a new study co-authored by data-center-power [...]

[Read more →]

Tags: MulticoreInfo

Parallel programming skills crisis could stall server evolution

September 14th, 2011 · 1 Comment

by Sandra Van Dijk, ComputerWorld
A lack of parallel programming expertise in the IT sector and the impact it will have on future server platforms is one of the biggest questions for computing over the next decade, according to James Harland, the associate professor of computer science at RMIT University.
Harland said parallel programming skills are in [...]

[Read more →]

Tags: MulticoreInfo

Energy-Efficient Computing: Power Management System on the Nehalem Family of Processors

September 9th, 2011 · 1 Comment

by Steve Gunther, Anant Deval, Rajesh Kumar, and Edward (Ted) Burton, Intel Corporation
Abstract: Maximizing energy efficiency was a key goal on the design of the The Intel® microarchitecture code name Nehalem, which was conceived as a modular architecture with multiple cores that would scale from very small mobile platforms to very high-performance, server configurations. Building [...]

[Read more →]

Tags: MulticoreInfo

Cluster Debug Tools – Overview

September 8th, 2011 · 1 Comment

Debugging is not something I enjoy doing but sometimes I cannot avoid doing… Therefore I thought that a short overview on some of the available tools will be helpful.
- TotalView: is probably the most widely used debugger for parallel programs. It can be used with C, C++ and Fortran programs and it supports all common [...]

[Read more →]

Tags: MulticoreInfo

The Road to Production—Debugging and Testing the Nehalem Family of Processors

September 8th, 2011 · 1 Comment

by Derek Feltham, et al., Intel Corporation
Abstract: This article describes innovations in the Design for Validation (DFV), Design for Test (DFT), and High Volume Manufacturing (HVM) features of the Intel® microarchitecture code name Nehalem family of products. These features are critical to debugging the complex architecture of this product family, and they are key to [...]

[Read more →]

Tags: MulticoreInfo

Multi-core File Compression

September 7th, 2011 · No Comments

by Douglas Eadline, Cluster Monkey
Every now and then there are really nifty multi-core applications that help with some of the more mundane Linux HPC chores. The -j option for make is one such example. I recently stumbled upon two other applications that take advantage of multi-core for file compression.

[Read more →]

Tags: MulticoreInfo

Why We Compute

September 7th, 2011 · 1 Comment

by Dan Reed
Why do we, as researchers and practitioners, have this deep and abiding love of computing? Why do we compute? Superficially, the question seems as innocuous as asking why the sky is blue or the grass is green. However, like both of those childhood questions, the simplicity belies the subtlety beneath. Just ask someone [...]

[Read more →]

Tags: MulticoreInfo

Intel Westmere Architecture

September 7th, 2011 · 1 Comment

by Martin Dixon, Per Hammarlund, Stephan Jourdan, and Ronak Singhal, Intel Corporation
Abstract: The next-generation Intel® microarchitecture was designed to allow products (under the Intel® microarchitecture code name Nehalem and Intel® microarchitecture code name Westmere) to be scaled from low-power laptops to high-performance servers. The core was created with power efficiency in mind and offers performance [...]

[Read more →]

Tags: MulticoreInfo

Intel Releases New Sandy Bridge Processors

September 7th, 2011 · 1 Comment

by Andrew Cunningham
Intel has announced a total of 16 new Sandy Bridge processors today, augmenting its lineup in the mid and low-end markets on the desktop and in the high and low-end markets on laptops.
On the desktop side, we have four new Core-series processors, one i5 (the 2320) along with three i3s (the 2130, 2125, [...]

[Read more →]

Tags: MulticoreInfo

Seagate Ships World’s First 4TB External HDD

September 7th, 2011 · No Comments

by Anand Lal Shimpi, AnandTech
Just over a year ago Seagate introduced the world’s first 3TB hard drive. Although it shipped in an enclosure for external use, the Seagate GoFlex Desk was available with the very first 3.5” 3TB SATA hard drive. A couple of months later Seagate and Western Digital both followed up with standalone [...]

[Read more →]

Tags: Storage