LHC@home

Discovered some problems with result replication! and run out of
disk space at CERN. There will be a pause, for a few days at least,
while I investigate and resolve. (Wil post details soonest to the
MB Number Crunching.) Eric

---

when is it expected to tranfer file working again?

When can we start crunching again?

When can we start crunching again?

Eric,

Could you please give us an update? It's been 7 days now without crunching.

Regards

From the thread title:

... and PAUSE

Since Eric came along we have had the most sustained period of regular work that I can remember. I've done 5 times more in the last year than I did in the previous 7 years. There may now be a hiatus while they analyse the results we have produced and sort out a reason for any discrepancies. Historically this project has had long periods of only sporadic work, some of them only lasting a few seconds, but I hope those dry spells are over. There has been talk of longer WUs so we may even get them once they have sorted out whatever problems they are resolving just now. Just leave your machines banging on the door and they will pick up the new work when it becomes available.
Patience is the key....

If you really can't wait but want to help the guys on the other side of the detector, have a look at Test4Theory but check the boards there and follow the setup proceedure as it's a bit more involved than just connecting through Boinc.

---

Hi Ray,

I'm 200% agree with your argument.
The only worry is that the project test4theory I can only run one instance of 2 thread / computer.
I think, and after the global stats that I'm not alone in this case.
I must dig further on how to proceed.

Thank you again for your explanations

Grusse Svenny,
T4T themselves choose to only allow 1 task per computer. Not really sure why, but perhaps there is a difficulty in running more than 1 Virtual Machine on a host due to the physical memory and disk space needed for each VM. Even with the new wrapper, which only uses 1 core, they still only allow 1 WU per host. The (mt) tasks you have probably don't use 100% of the 2 core allocated so the beta wrapper is possibly more efficient. As for Boinc credits; on my main machine I'm getting 500 credits for a single core Beta task against short of 700 for the 2core task and I don't think there is any reduction in the throughput of Cern jobs done. It also seems to have sorted out some of the problems people were having. If you want to try it, in your preferrences set to allow test applications. There is an initial download of about 1.4Gb per host so beware if you have limited download allowance. The beta tasks run with the console window hidden so if you want to see that, you will need to install the VM extension pack (it's only 10Mb), which won't take effect until your next WU downloads. Not sure if you need to upgrade to VBox 4.2.4 for that to work?
Tschuss

Due to memory consumtion there is actually no option to run more then one task or more then one virtual machine. When the new wraper goes mainstream that might change. There was a setup instruction how to set up several virtual machines yourself and then run more tasks at the same time. But that discussion somehow disappeared.

---

Christoph

Christoph, Murray Thank you for your different tracks.

I will try this weekend.
Because as they say who seeks finds.
I would like to find a sollution because I will have a dual core with 16 threads 8/coeurs plus 4 GPUs.
I'll try to upgrade with VBox 4.2.4 but if I remember correctly what I read as there were stability problems when we were working Test4theory.

I will keep you informed next week.
greetings
Svenny

Any news on the fix? I've been out of work units for weeks now.

@svenny

T4T has been stable for a while now, there is some complexity setting it up(e.g. VBox, no daemon mode,..) to start with vs other BOINC projects.

There was a bug with VBox 4.2 but the 4.2.x versions are fine, Oracle fixed the bug.

I think when they move to the new wrapper that is written by the BOINC team, that shoudl improve stability further. We've asked for multi CPU support, they seem a little hesitant due to memory and IO requirements but I think there's enough people who have high end computers that want >1 WU.

I was very hot on T4T, hot to get on it when it required an invitation, for which I begged and which I got. I was able to get up on the project with the Oracle VM and was quite successful for a long time.

Then, things just all went to hell. I had originally I think five machines on the project. One by one they went awry. Project people tried to help out, but it was to no avail.

At this point, I am no longer a participant.

I still follow the project stats. I think at no point were there ever as many as 2000 users getting credit, which is a shame. I think the VM thing put a lot of people off. I think the project would be much more inviting if it were ported to Windows and Mac. You can see my results below.

If you do attempt this project, I wish you well.

---

Please check out my blog
http://sciencesprings.wordpress.com
http://facebook.com/sciencesprings

3 weeks without an update, not even a 'yeah we're continuing to work on it' in typical Boinc noncommunicative fashion. Oh well it's not much different than other projects out there. I've become accustomed to it.

---

100% CPU credits.

I was very hot on T4T, hot to get on it when it required an invitation, for which I begged and which I got. I was able to get up on the project with the Oracle VM and was quite successful for a long time.

Then, things just all went to hell. I had originally I think five machines on the project. One by one they went awry. Project people tried to help out, but it was to no avail.

At this point, I am no longer a participant.

I still follow the project stats. I think at no point were there ever as many as 2000 users getting credit, which is a shame. I think the VM thing put a lot of people off. I think the project would be much more inviting if it were ported to Windows and Mac. You can see my results below.

If you do attempt this project, I wish you well.

Hello again Richard,

How is your side of the continent doing?

Yeah you can probably tell it is hard to get me to quit running one of my 3 projects and I probably have checked this site more than anyone over the years and running those huge 1 credit tasks.

Since T4T switched to letting us run 2-core tasks I have had no problem on any of my 7 hosts.......well until the last few days when for some reason one of the hosts is only getting about 1/3 of the credit it has been getting daily for about 7 months........I know how you and many others feel about running the T4T's.......the only thing that keeps me going there is trying not to read any posts and the daily problems since I know the tasks work for all of mine and I got burned out doing things there.

The thing that keeps tempting me to quit and just let mine all run Einstein cuda's is that goofy credit problem and the attempted stats pages.

I know many members over the years will say credits are not important but I tend to do this to help and my pay is "credits"

Not much to ask since I will probably never know if any of my tasks ever actually did anything........and my wife has said hundreds of times I am just wasting piles of cash buying and running all these computers over the last 13 years......and I was happy to see this LHC back in 2004 and Einstein a year later since I just couldn't see a reason to run Seti anymore.

Ok I hope all is well over on the east side.....2:30am so I better check all the machines and go fake sleep.

Happy New Year

---

Volunteer Mad Scientist For Life