Ah, that's interesting about the screensaver.
A colleague and I ran a test yesterday to see exactly how unobtrusive the AlchemiExecutor service is.
MATLAB Calculation on his PC, with nothing else running: 4min 50sec (MATLAB took up 100% CPU)
MATLAB Calculation on his PC, with Alchemi running: 5min 36sec (MATLAB took up 95% CPU, Alchemi took up 5%)
So...it's not as unobtrusive as advertised, though still marginally acceptable.
I do like the idea of starting it on user logoff, and stopping it on user logon.
Thanks for that previous thread using this approach. The NewGINA approach seems a bit convulted (and perhaps NT-specific?). Has anyone tried using the Group Policy Editor in Windows XP to do this?
1. Run the Group Policy Editor (Start -> Run -> gpedit.msc)
2. Go to User Configuration -> Windows Settings -> Scripts (Logon/Logoff)
3. Make batch files
alchemi.start.bat with the single line
net start "Alchemi Executor Service"
alchemi.stop.bat with the single line
net stop "Alchemi Executor Service"
4. Pointing the Logon/Logoff scripts to these batch files.
Any comments?
Thanks!
-Matt
Hi Matt,
There is a screensaver project in the CVS but work on it has stopped for some time. I'm not sure in what state it is now, I do not think anybody looked at it in a long time. You will find the latest code in the source packages under Alchemi.ScreenSaverExec.
There is another approach that you might find useful: running the Executor service when nobody is logged on. Reece Arnott did some work in this direction and his efforts are documented here:
https://sourceforge.net/mailarchive/message.php?msg_id=13639046
Regards,
Tibor
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Matt Valerio
Sent: Wednesday, August 16, 2006 11:47 AM
To: [email protected]
Subject: [Alchemi-users] Alchemi Screensaver
Hello,
I just got Alchemi sucessfully installed on 4 computers, with a 5th for the manager. Works great!! This is a truly awesome piece of work -- It only took me a few hours to set it up and I can't wait to start writing applications for my grid. The Alchemi developers have done a wonderful job.
I wish to have a number of dedicated (4 so far) and non-dedicated computers on the grid. I have a number of other computers that I would like to run in non-dedicated mode, and have had good luck running the Alchemi.Executor program.
But, the users on these non-dedicated computer have to manually start up the executor. Is there any way to do this automatically when their computer is idle?
I think I remember seeing a screensaver somewhere that would do this for them. Which package is that in? I can't seem to find it.
I'm using the latest versions from sourceforge:
Executors (dedicated): Alchemi.ExecutorService-1.0.5-net-2.0.msi
Manager (dedicated): Alchemi.ManagerService-1.0.5-net-2.0.msi
Executors (non-dedicated): Alchemi.Executor-1.0.5-net-2.0.msi
Any help would be greatly appreciated! Thanks!
-Matt
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