Thursday, March 26, 2009

Arch linux: very first impression

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Usually I don't write any reviews or any opinions on linux distros. However, I have to make an exception. The reason is that I have just...
Wednesday, March 18, 2009

ubuntu-server 8.10: problem with vncsever

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To install vncserver on ubuntu-server 8.10 one can use the following sudo apt-get install tightvncserver fluxbox xterm or sudo apt-get insta...
Monday, March 16, 2009

LS-DYNA parallel: SMP vs MPP

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LS-DYNA, is an part of ANSYS software and it is a general purpose transient dynamic finite element program capable of simulating complex rea...
Wednesday, March 11, 2009

Linux: Error while loading shared libraries

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Just indicate the folder containing the library: export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/folder/with/lirbary To check what libraries are u...
Tuesday, March 10, 2009

Xen: performance of full virtualization vs. paravirtualization

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I wanted to check what is the difference in performance between virtualization and paravirtualization using Xen . Before going any further s...

Xen: Error: Device creation failed for domain

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On CentOS 5.2 I had few paravirtualized domU's running. Everything went fine, but one day my Xen could not start any domU. The errors w...
Sunday, March 08, 2009

Linux: creating ramdisk

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The following comes from tip #45 . Remember the old days of RAM disks? Well, Linux has them too! If you've never tried them, a RAM disk ...
Saturday, March 07, 2009

Excel: Convert text to number

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To convert number written as text in excel, one can use value function:
Friday, March 06, 2009

Missing libXm.so.3 in ANSYS 11 SP1 on RHEL4

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According to ANSYS Version 11.0 Service Pack 1 - Platform Support Table , ANSYS 11 SP1 for Intel Xeon EM64T/AMD Opteron is fully supported...
Wednesday, March 04, 2009

CentoOS: Long delay after password in ssh

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From some computers, when I wanted to connect to my server using ssh, I had to wait about 30s before I could login. I goggled this and I fou...