search for: jjlee

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2008 Apr 11
2
question on RAID performance
Hi all, I was wonder what experiences there are out there with using RAID-X for performance increases. I do use RAID-1 (2 disks) but am interested in attemtps to gain higher R/W performance. Do the RAID-5's etc give noticeable performace increases? A significant help for me was using ccache for compiling programs. That was a real performance increase. Thanks for any suggestions/opinions.
2011 Oct 05
4
SPlus to R
...re it should be, right?  I think I have this set up correctly.  I'm using method=3 which only requires nc and d to be specified.  Any ideas why I'm not seeing output?   Here is the entire output:   > ## sshc.ssc: sample size calculation for historical control studies > ## J. Jack Lee (jjlee@mdanderson.org) and Chi-hong Tseng > ## Department of Biostatistics, Univ. of Texas M.D. Anderson Cancer Center > ## > ## 3/1/99 > ## updated 6/7/00: add loess > ##------------------------------------------------------------------ > ######## Required Input: > # > # rc     nu...
2008 Mar 31
1
Icon .png file loading error after graphics driver upgrade
Dear, I updated my nvidia graphics driver on one of the CentOS boxes. When I log in my account, icons are not displayed correctly. They are displayed as small empty squares, and there are error messages like "Fater error: failed to load <file name>.png : version error" for each icon. If I log in as super user, everything is OK. Icons are OK. No error messages. Do you have any