Tags: CPU

CPU Utilization Is Wrong

Everyone uses %CPU to measure performance, but everyone is wrong, says Netflix's Brendan Gregg in his UpSCALE Lightning Talk. CPU utilization is the metric everyone uses to measure a processor's performance. But %CPU is a misleading measure of how busy your processor really is, says Brendan Gregg,...
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A Primer on Nvidia-Docker — Where Containers Meet GPUs

Traditional programs cannot access GPUs directly. They need a special parallel programming interface to move computations to GPU. Nvidia, the most popular graphics card manufacturer, has created Compute Unified Device Architecture (CUDA), as a parallel computing platform and programming model for...
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The Engine of HPC and Machine Learning

There is no question right now that if you have a big computing job in either high performance computing – the colloquial name for traditional massively parallel simulation and modeling applications – or in machine learning – the set of statistical analysis routines with feedback loops that can do...
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Intel Deploying Updates for Spectre and Meltdown Exploits

Intel reports that company has developed and is rapidly issuing updates for all types of Intel-based computer systems — including personal computers and servers — that render those systems immune from “Spectre” and “Meltdown” exploits reported by Google Project Zero. Intel and its partners have...
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Today's CPU Vulnerability: What You Need to Know

Last year, Google’s Project Zero team discovered serious security flaws caused by “speculative execution,” a technique used by most modern processors (CPUs) to optimize performance.The Project Zero researcher, Jann Horn, demonstrated that malicious actors could take advantage of speculative...
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​Major Linux Redesign in the Works to Deal with Intel Security Flaw

A serious security memory problem in all Intel chips has led to Linux's developers resetting how to deal with memory. The result will be a more secure, but -- as Linux creator Linus Torvalds says -- slower operating system. Long ago, Intel made a design mistake in its 64-bit chips -- and now, all...
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How AMD Wants to Provide ‘Supercomputing for All’

At the SC17 supercomputing conference in Denver Nov. 13, AMD and some of its ecosystem partners announced the availability of a suite of new, high-performance systems powered by AMD EPYC CPUs (central processing units) and AMD Radeon Instinct GPUs (graphics processing units) to accelerate the use...
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GPU Computing: The Key to Unleashing the Mysteries of All That Data

To effectively handle all the data being created in the world today, we need GPU computing. To harness this goldmine of data, artificial intelligence and machine learning has emerged, which uses algorithms to train data to find patterns. The problem is, traditional CPUs (central processing units)...
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How Materials Science Will Determine the Future of Human Civilization

One of the extraordinary features of the microelectronics revolution is its ability to scale, a featured captured by Moore’s Law. That has led to a rapid and massive increase in computing capacity—today’s top-of-the-range smartphones have the computing power equivalent to the world’s most powerful...
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The Biggest Shift in Supercomputing Since GPU Acceleration

If you followed what was underway at the International Supercomputing Conference (ISC) this week, you will already know this shift is deep learning. Just two years ago, we were fitting this into the broader HPC picture from separate hardware and algorithmic points of view. Today, we are convinced...
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