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Linux Feed

Linux Support, Oracle Linux, Red Hat Enterprise Linux, SUSE, Oracle Unbreakable Enterprise Kernel and the Oracle Unbreakable Linux Support Program (ULN) resources, news, and support articles.

Accurately Time Your Parallel Loops in OpenMP

Learn how to use a wall clock timer that is included as part of the OpenMP library. Jeff Cogswell walks you through how. Taken from Accurately Time Your Parallel Loops in OpenMP which is found http://goparallel.sourceforge.net/

Use GNU C++ and Intel Compilers with OpenMP

Most compilers today support OpenMP. Here is a video compilation of  of how Jeff Cogswell shows you how to compile OpenMP programs using both the Intel and GNU C++ compilers. Taken from Use GNU C++ and Intel Compilers with OpenMP from http://goparallel.sourceforge.net

iostat – installation and usage

 
The iostat command is used for monitoring system input/output device loading by observing the time the devices are active in relation to their average transfer rates.
The iostat command generates reports that can be used to change system configuration to better balance the input/output load between physicaldisks.
How to install iostat:
iostat is available in sysstat module, so to install iostat we need to install sysstat module.
Use following command to sysstat:

What is the ice bucket challenge?

The internet has gone viral with videos of celebrities and other popular personalities taking the "Ice Bucket challenge" and daring three others to do the same. Here is what you need to know about it:

Routing PHP memcached calls to Oracle Coherence

A new post href="https://blogs.oracle.com/OracleCoherence/entry/getting_started_with_the_coherence"
>Getting Started with the Coherence Memcached Adaptor from David
Felcey shows how PHP memcached calls can automatically be routed to
store data in Oracle Coherence 12c.

NFS mount errors with “clnt_create: RPC: Unknown host” for CentOS 6

When attempting to mount CentOS 6, my mount fails with
clnt_create: RPC: Unknown host
Diagnostic:
If we do a more thorough diagnostic, this is the issue

Using double dash to specify pesky command line parameters

Many Linux commands accept command-line options and positional parameters. The grep command searches for a pattern in a given file. Its 2 positional parameters are the pattern and the filename. It accepts options such as -i which specifies that the search is case insensitive. An interesting scenario is when a positional parameter has a value starting with a dash ('-'). This makes the parameter indistinguishable from an option. For example, you try to grep the string -tea in a given file.

JuiceSSH makes it easy to manage SSH from an Android device

http://www.techrepublic.com/article/juicessh-makes-it-easy-to-manage-ssh-from-an-android-device/#ftag=RSS56d97e7

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