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Advanced Clustering Technologies is a leading provider of high performance Beowulf clusters, Linux-based servers and workstations.
Advanced Clustering — YOUR source for turnkey high performance computing hardware, software, and services.

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Home Newsletters May 2014

May 2014
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Renting versus buying: Which is better for your high performance computing needs?

We've seen an uptick in requests for hosted HPC solutions recently, and we're interested in learning if this is a service we should start offering on a regular basis. We'd truly appreciate any thoughts you have on this subject, whether they be positive, negative or neutral. 

Click here to take our short survey and get a chance to win a $25 Amazon gift card!

Help wanted: Technical Support Engineer

Our business is growing, and we have an immediate need for a Tech Support Engineer to work out of our headquarters in Kansas City, KS.

This position requires in-depth knowledge of Linux systems administration and computer hardware, basic networking skills, and a strong commitment to customer service.

Interested or know someone who is? Please contact us or visit our Careers page for more information.

Tech tip of the month: Using grep to filter results

The command line utility "grep" is one of the most powerful and useful tools in Linux. Its most common use is to filter results from everyday commands. For instance, if you want to see all the hostnames your system has mapped out in /etc/hosts you can simply run:

$ cat /etc/hosts

But if you know you're just looking for a specific hostname, you can pipe the output through grep:

$ cat /etc/hosts | grep head   head-ib  head-ib.cluster   head-mgmt  head-mgmt.cluster   head-ipmi  head-ipmi.cluster   head  head.cluster

This limited the search results to lines that contained the word "head," which represents this cluster's head node.

Another very useful grep technique is to find every instance of a word or pattern within every file in a directory or even subdirectories:

$ grep -R "words to search for" /path/to/search/in/

This will scan every file within the path you specify and find any instance of the word or words you listed.

These two examples are just the beginning of what you can do with grep. To get the full manual for the grep command, simply type:

$ man grep

If you have questions about grep or any other command line tool, please contact our support staff.

Learn more about GPUs and IPMI in our latest blog

Please visit our company blog to see our newest subjects:

Happy reading, and keep checking back for more new topics!