This means that all the graphics cards must have identical configurations, such as the same number of raster managers and the same pixel depth. On Onyx family systems, use ircombine to set up the configuration. Refer to the ircombine man page. There is a potential problem with multithreaded applications. For each application, TGL is spawning one rendering thread for each graphics pipe.
Conflicts can occur if the application itself is spawning threads.
Some hidden thread spawning can occur in some applications. In these cases, Xinerama will be disabled, regardless of the value of chkconfig xinerama flag. The Transparent OpenGL layer needs to run on an X server with Xinerama enabled. If Xinerama is not enabled on the X server used to display and you invoke an application with tgl, the application will exit. In this case, simply run the application without the tgl script.