Ahhh found out.

Have verified this, so I may have srewed up several results.


CP works fine in conjuction with other projects such as seti when running on more than one processor.

However if CP alone runs on a multi processor it hangs.

What I did (so it can be repeated)

I disconected myself from CP. Then re connected. It locked after downloading.

If disconnected again, went to preferences on the cp site, and made sure that Boinc only used one processor.

It was working running CP only again.

So just to verify, I set the processors back to 2 and updated. Sure enough BOINC went non responsive after a download.

So the moral of the story is, If you are not getting work from another project, and have more than one processor, you need to set your preferences to use only 1 processor. Once the other projects come back up I'n sure it will be fine to enable multi processors again.

I tried this trick, but it still keeps locking up. I also noticed that I now have about 5 hosts with the same name but different IDs because of this issue. And this seems to be a new "feature" with 4.09. I was running 4.05 in similar situations and it wasn't going pscycho. I wonder if its something to do with the HyperThreading processor in my PC. My "normal" P4 at the office is busily chewing away at the CP job it has, and taking to Seti every once in a while to see if there is any work.
I wonder how many WU of CP I've wasted, not to mention the one that was some 2/3 of the way to completion. :(

> I tried this trick, but it still keeps locking up. I also noticed that I now
> have about 5 hosts with the same name but different IDs because of this issue.
> And this seems to be a new "feature" with 4.09. I was running 4.05 in similar
> situations and it wasn't going pscycho. I wonder if its something to do with
> the HyperThreading processor in my PC. My "normal" P4 at the office is busily
> chewing away at the CP job it has, and taking to Seti every once in a while to
> see if there is any work.
> I wonder how many WU of CP I've wasted, not to mention the one that was some
> 2/3 of the way to completion. :(
>
>
I feel for you, I lost about 45% of one. And I started several while trying to figure this out.

A P4 Hyperthreaded will look like multiple processors to BOINC.

There is a feature to combine computers on the site.

But make sure that in your preferences you have 1 filled in for max number of processors used. if it is blank, I believe BOINC see it as a no preference and will try and use the "second" P4 in yout P4HT....

Understand that only the GUI is hanging. Processing is continuing as normal "under the hood". This is caused by the GUI not having work for all available slots. You can either use the GUI client and ignore the GUI freezes when it's crunching one slot only or use the CLI client, which doesn't become unresponsive.

Cheers,

trane