Cray Inc., progeny of the storied Cray Research, recently released its XT5 family of Linux-based supercomputers. Cray says the XT5's massively parallel processor (MPP) system includes a new eight-socket compute blade that quadruples local memory capacity, doubles processor density and improves energy efficiency. Other features include single-fan vertical cooling, compute blades designed for optimal airflow and CPU configurations up to 192 processor sockets or 768 CPU cores. To improve scalability, the Cray XT5 family also includes the industry's first integrated hybrid supercomputer, the Cray XT5h system. The XT5h integrates multiple processor architectures—including vector processors, GPUs, accelerators and FPGAs—with a complete software development environment into a single system supporting diverse work flows.
At Supercomputing 2007, Appro unveiled its forthcoming Xtreme-X Supercomputer Series, a product line based on scalable clusters that provide cost-effectiveness, energy efficiency and scalability. The series is designed to scale out data centers for medium- to large-scale enterprises and HPC deployments. The first model in the series, the Appro Xtreme-X1, will ship in the first half of 2008 and is based on dual-socket, Quad-Core Intel Xeon processors. Besides its 128 nodes/512 processors and 6TF of computing power in a single 42U equipment rack, the product has Appro's new Directed Airflow cooling configuration, which the company says will reduce data-center floor space by 30% while maximizing power and cooling efficiency. In addition, the Xtreme-X1 features redundant (Dual Rail) InfiniBand connections with low-latency Mellanox ConnectX host channel adapters and Ethernet management fabric and network switches, with all critical components being easily accessible, hot-swappable and redundant.
No Starch Press continues its tradition of naughty geek entertainment with the 2nd edition of Hacking: The Art of Exploitation by Jon Erickson. Although other books in this genre show not only how to run other people's exploits but also how to perform and write them on your own, Erickson uses examples to illustrate the most common computer security issues in three related fields: programming, networking and cryptography. Some examples include stack-based overflows, heap-based overflows, string exploits, return-into-libc, shellcode and cryptographic attacks on 802.11x. A live Linux CD also is included.
Please send information about releases of Linux-related products to James Gray at email@example.com or New Products c/o Linux Journal, 1752 NW Market Street, #200, Seattle, WA 98107. Submissions are edited for length and content.
James Gray is Products Editor for Linux Journal.
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
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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- Stunnel Security for Oracle
- SourceClear Open
- Murat Yener and Onur Dundar's Expert Android Studio (Wrox)
- SUSE LLC's SUSE Manager
- My +1 Sword of Productivity
- Managing Linux Using Puppet
- Google's SwiftShader Released
- Non-Linux FOSS: Caffeine!
- Parsing an RSS News Feed with a Bash Script
- SuperTuxKart 0.9.2 Released
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