So what would happen in this situation?

[minendo]

All of the computers on campus just switched over to WinXP. Well everytime I log in to the computer it accesses my network hard drive, which I have seti on. Now what would happen if I had two computers logged on crunching the same work unit?

Is there an updated file that as the work unit progresses, analysis data is stored? Would the work unit be done in half the time? I'm really curious as to what would happen.

 

[Migroo]

Not sure at all! But a very interesting question indeed!

 

[MoFunk]

Well if it works. log onto a bunch of PC's and crunch away.

When you log on to the 2 computer do they try to work on the same WU?

 

[minendo]

When you log on to the 2 computer do they try to work on the same WU?

Yes becuase they are running off of a network drive, but what I want to know is how often SETI updates the processed part of the work unit and if two processors on teh same work unit would make a difference. It is hard for me to explain by typing. sorry

 

[Orange Kid]

All you will end up with is one wu done multiple times..............duplicates.

You would need to have all the computers running as a cluster or beowulf

 

[minendo]

Originally posted by: Orange Kid
All you will end up with is one wu done multiple times..............duplicates.

You would need to have all the computers running as a cluster or beowulf

Thanks OrangeKid. I figured this is what would happen, but I was curious.

 

[Rattledagger]

If I understand you correctly, you're running seti, but instead of using local hd, you're using a directory on a networked hd, and everytime you log in to a machine you're using the same directory on the same networked hd.
In this case, there isn't a problem, since it's impossible to run more than 1 instance from the same directory at the same time. If you try starting more instances, the new instance will automatically terminate with an error-message.

 

[minendo]

In this case, there isn't a problem, since it's impossible to run more than 1 instance from the same directory at the same time. If you try starting more instances, the new instance will automatically terminate with an error-message.

No it is not impossible becuase when I log into two computers seti pops up and runs on both of them. I wanted to know how seti works in refreshing the data. Like how often is the work unit file updated with completed information.

 

[Rattledagger]

Well, I just tested, and I can't run seti on both machine2 and machine3 from the same directory on machine1. This is with win-cmd, and all machines is win2k.
As for the update of the progress, this is every couple of minutes, depending on the speed of the machine.

Edit, Hmm, just tested win-gui also, and this started two instances. This should give problems.

 

[SoulAssassin]

Are we talking about roaming profiles here?

You probably could use server mgr or Hyena to see who has the lock.sah file open if you have access to it.

 

[Rattledagger]

Ouch! The gui-version haven't a lock.sah :Q

 

[Slaughter]

You would need to have all the computers running as a cluster or beowulf

Correct me if I'm wrong, but isn't that pointless? Since SETI isn't multithreaded it won't fork a process to the other nodes?, correct?