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Inverting Large Images Using CUDA

This is a simple example of how to invert a very large image, stored as a vector using nVidia’s CUDA programming environment and an EVGA GeForce GTX 260 graphics card. A GeForce GTX 260 card should have only 24 cores on it, but the nVidia SDK deviceQuery utility reports that there are 27 multiprocessors on my GeForce GTX 260 graphics card and I am able to use all 27 of them. $ deviceQuery CUDA Device Query (Runtime API) version (CUDART static linking) There is 1 device supporting CUDA Device 0: “GeForce GTX 260” CUDA Driver Version: 2.30 CUDA Runtime Version:

Project Plymouth

Plymouth is the codename for a freedesktop.org project started in 2007 by Ray Strobe of Redhat to develop a graphical application to display a flicker free animated splash screen during the boot process while logging console text output to a log file. Fedora 10 (Cambridge) was the first release of Fedora to contain Plymouth. Development work is actively ongoing and the current release is 0.71. Plymouth is intended to be a replacement for RHGB (Red Hat Graphical Boot) which is currently used by Red Hat to provide a graphical boot display. If rhgb is part of the kernel command line,

Fedora 11 nVidia Twinview Support

Fedora 11 (Leonidas) ships with the nouveau nVidia graphics driver preloaded by default if a nVidia graphics card is detected at install time.  Previous versions of Fedora used the older X.Org nv driver. The nouveau project aims at producing Open Source 3D drivers for nVidia graphics cards.  According to the nouveau project Wiki 2D-support is in fairly good shape with EXA acceleration, Xv and Randr12 (think of dual-head, rotations, etc.). Randr12 should work for all cards up to, and including, Geforce 9000 series, although some issues with Geforce 8/9 laptops may still exist, for such issues bug reports should be

Fedora 10 Dual Head Graphics Card

This post details how to install and configure two monitors on a single EVGA GeForce 9500 GT graphics (video) card under Fedora 10. When I was researching dual head graphics cards for use with Fedora, I came across a lot of forum and blog entries on the subject but most of them contained obsolete or incorrect information – especially about TwinView, Xinerama and the X Window System configuration file. Hopefully this post will provide readers with some useful up-to-date information on the subject. This particular graphics card (EVGA P/N 01G-P3-N959-TR) was of interest to me for a number of reasons