LinuxBIOS at Four
LinuxBIOS runs on a wide range of platforms. Fifty supported motherboards are in the source tree, but we have found that many motherboards are so similar that a LinuxBIOS for one motherboard can work on another. Companies build code for one motherboard, run it on another motherboard and do not always get around to telling us.
LinuxBIOS works on 64-bit and 32-bit CPUs. CPUs supported include the Alpha, K8, K7, PowerPC, P4, PIII, PII, Cyrix (VIA), Geode (now AMD) and SC520 (AMD). Chipsets are too numerous to list. Form factors of mainboards range from the smallest PC/104 systems to the largest K8 systems. An IBM PPC 970 port is in progress.
One of the most common phrases we heard from chip vendors in the first few years was “we'll never tell you that.” “That” being CPU information, chipset information, motherboard information or any combination of the three. The designs for these three systems constitute highly guarded secrets. It seems amazing, even now, that vendors are able to let us build a GPLed BIOS that by its nature exposes some of these secrets.
How was it possible for us to get this type of information? Simple, businesses are not charities. If there is no business case for releasing this information to us, they do not do it. If, however, there is a business case, then it happens—sometimes with astonishing speed.
From what we can see, the two factors in our success were competition and the creation of a market. Competition gave us a wide variety of choices as to motherboard, chipset and CPU. Once there was a reasonable market, vendors were concerned about being left out.
The experience at LANL is revealing. LANL's last two large cluster RFPs have specified LinuxBIOS as a mandatory requirement. Spending on these RFPs has come in at over $19 million US. Companies that had decided not to become involved in LinuxBIOS could not respond to these RFPs. Companies that had the foresight to get involved in LinuxBIOS early in the game were equipped to respond. Foresight, in this case, conferred a competitive advantage.
LinuxBIOS has come a long way in four years—as one person put it, from “I'm Possible” to “In Production”. LinuxBIOS is used on everything from the largest Linux clusters yet built to the small—test instruments, MP3 players and portable clusters.
LinuxBIOS makes it possible to build systems without PC hardware baggage. The systems can be optimized for Linux and thus can be more compact and simpler. There is increasingly a business case for such systems.
LinuxBIOS is now in its second version, with four years, at least six CPUs and over 50 motherboards' worth of experience behind it. It now takes only days in some cases to do a port to a new system; originally, it took months. LinuxBIOS' impact on the world of computing is only beginning.
So many people have contributed to LinuxBIOS that it is easy to slight them by listing some and not all. Nevertheless, a few contributors stand out as having made LinuxBIOS possible. First, of course, is Stefan Reinauer and the OpenBIOS effort; Jeff Garzik, who got the STPC BIOS Project set up on SourceForge as FreeBIOS; Ollie Lho, who did so much to get our first workstation platforms going in 2000; Steve James and Linux Labs, who worked with us and expedited the shipment in 2000 of our first LinuxBIOS cluster; Greg Watson, who did the PowerPC port; and Eric Biederman, who has done so much to get our really hard platforms up and stable and who has done so much to create version 2.
This paper is released under LAUR 03-8165. This research was funded by the Mathematical Information and Computer Sciences (MICS) Program of the DOE Office of Science and the Los Alamos Computer Science Institute (ASCI). Los Alamos National Laboratory is operated by the University of California for the National Nuclear Security Administration of the United States Department of Energy under contract W-7404-ENG-36.
Ronald G. Minnich has been working in high-performance computing and clustering for 15 years. He recently realized that one of his first clusters, a 16-node SPARC cluster, has a total power equivalent to one-fourth of one of the 2,048 processors in his newest cluster; his new cluster has 10,000 times the power of his first one. Ron started working with UNIX in 1976, with Linux in 1993 and built his first PC cluster in 1994.
Practical Task Scheduling Deployment
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
Join Linux Journal's Mike Diehl and Pat Cameron of Help Systems.
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- The Firebird Project's Firebird Relational Database
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- Murat Yener and Onur Dundar's Expert Android Studio (Wrox)
- Managing Linux Using Puppet
- My +1 Sword of Productivity
- Non-Linux FOSS: Caffeine!
- Google's SwiftShader Released
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- Doing for User Space What We Did for Kernel Space
With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide