https://bugzilla.novell.com/show_bug.cgi?id=687505
https://bugzilla.novell.com/show_bug.cgi?id=687505#c2
--- Comment #2 from Petr Cerny
could you please provide a more detailed description? From the initial bugreport it is hard to tell where the problem might be and it is definitely not descriptive enough to try to reproduce it.
Basically the problem can be split in two sypthoms. After setting up SSH for communcation between 4 maschines, where one of those maschines is set up as server, while the others as clients, the maschine set up as server, 1. changes the desktop charakteristics: by minimazing an application, the application disappears from screen. If you want to call up the application again, indeed you have to make that app visible again, you must do that by using the keyboard combination Ctrl+F10. 2. the shell doesn't react any more after while. You can e.g. make a listing by typing "ll" - it writes "ll", but no listing is made. If close the shell in order to relaunch a new one, it starts to launch one, but after abou 30 seconds a notice is shown: Error launching /usr/share/applications/kde4/konsole.desktop. Either KLauncher is not running any more, or it failed to start the application
Are you using some special clustering framework or is it just your own set of scripts and applications scheduling the work?
the software run in parallel is called OpenFOAM and is a free C++ library for computational fluid dynamics. The sw splits the computational domain into x parts which are processed by x processors. In my case I have 8 parts and 4 dualcore processors. The communication on network level is via ssh, but the management of the communication between the processors is done by an other free sw called open MPI.
Isn't by chance some processes on the machine eating up all resources? In that particular case using cgroups might help
In fact during the calculation the whole CPU power on all the maschines is required for it. But the strange thing is, that the problem is only on the maschine which is set up as the server. No problems at all with the clients. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.