If you didn't have a fixed point of reference for time, the Message Boards would make no sense at all, well, even less than they do now! Now consider, when WUs are sent out and results received back....the servers don't know which time zone that each WU was sent to or what time zone the result came from. Don't forgot, that each WU has a completion time and date. Can you imagine the chaos that would ensue in all the databases, if the servers had to make corrections for time zones? This is 1st day kindergarten stuff, on Gallifrey - they like order in matters of time, there.

I can imagine no chaos from using the time zone of the location where the project is located. There is no difference between arbitrarily chosen "base" time zones.

And then I have to get off of my butt some day fairly soon and figure out that bit about making a recoverable copy of the OS with all updates applied, because once support for XP is withdrawn, if something like this happens and I can no longer use Windows Update to get the Service Pack and other updates, she's all done.

oh boy it looks like im a culprit now! i changed the app_info in my 3 computers that are running GT 430's so that they will run 2 tasks at a time. one of these computers is now spitting out errors from what i can see (computer 6606314). i live in an apt during the week and these computers are at my house so i don't have physical access to them at the moment. can somebody look into the errors that system is putting out and tell me if they know what seems to be the cause? i'd like to fix it ASAP, thanks.

I used to get around 90 for each WU now with my WU with either Fermi or Cuda I only get 30 so I have lost two thirds of my credits I have only noticed this since the outage

I think the servers messed up.

Look at reported times and credits.

http://setiathome.berkeley.edu/workunit.php?wuid=998136901

You know I gotta think that somewhere out there someone hasn't built the ultimate SETI@HOME OS which is essentially no OS. Start by building a Linux kernel with practically nothing in it. Eliminate the scheduler and make it real time. All of this stuff is pretty much off the shelf. Now just move all the Lunatics apps down into the kernel. Not for the general public, but for the hard core I think it would be a fun project. Probably end up maintaining it for the rest of your life though.

Doug

There is a RAM based linux distro here:

http://www.dotsch.de/boinc/Dotsch_UX.html

specifically for BOINC which can be configured to run from secondary storage.

It's a good start, but I'm talking all the way. Something so hard core that nothing will interrupt it from its I/O and computing activities. Something so perverse that its very existence is for SETI. I've got some spare disks. I might just do this at least up to the point of moving the Lunatics source into the kernel.

You know I gotta think that somewhere out there someone hasn't built the ultimate SETI@HOME OS which is essentially no OS. Start by building a Linux kernel with practically nothing in it. Eliminate the scheduler and make it real time. All of this stuff is pretty much off the shelf. Now just move all the Lunatics apps down into the kernel. Not for the general public, but for the hard core I think it would be a fun project. Probably end up maintaining it for the rest of your life though.

Doug

I do seti@home and Einstein@home.

Einstein@home has this neat thing in the project preferences where you can tell it how many instances of cuda task you want your video card to do.

seti@home does not have this feature at this time. Is there a howto somewhere that tells how to setup so that my video card does more than one cuda work unit?

I have looked at Lunatics download site. They got stuff, but things are a bit convoluted in there. I am looking at something cleaner.

you will need to edit your app_info.xml. Replace all instances of <count>1</count> with the reciprocal of how many tasks you want to run per GPU (ie, 0.5 for two tasks, 0.3 for 3 etc etc). Don't forget to stop your host processing whilst you do this.

I don't have app_info.xml. I am running unaltered boinc 7.0.25. That is why I am looking for a good howto.

I do seti@home and Einstein@home.

Einstein@home has this neat thing in the project preferences where you can tell it how many instances of cuda task you want your video card to do.

seti@home does not have this feature at this time. Is there a howto somewhere that tells how to setup so that my video card does more than one cuda work unit?

I have looked at Lunatics download site. They got stuff, but things are a bit convoluted in there. I am looking at something cleaner.

Today is my 13th anniversary in participating in SETI@HOME. It all started by reading an article online.

Aaaannd we're back.

On my ATI PC I'm getting long and short WU's and also AstroPulse, the run times and credit for each type of WU is similar, EG: longs take 1000 to 1300 seconds for 100 - 140 credit.

But what's with these .vlar work units?

They take twice as long for the same or less credit?

Can I change a setting so I don't get these?

Thanks

I ran mixed speed GPUs on http://setiathome.berkeley.edu/show_host_detail.php?hostid=6379672 without getting this issue for 3 months but over the past few weeks it is happening far more. I have just written a small C program that updates all the <rsc_fpops_bound> values in the client_state.xml to be 25 rather than 10 times the <rsc_fpops_est> values which should resolve this, I just need to stop BOINC and run it every few days. It also resets the DCF to 1.0.

I think you can do similar with Fred’s rescheduler, but have never used it.

The real problem is that BOINC thinks all the GPUs in a system must be the same speed and unless this is fixed running mixed speed GPUs will have issues. The main one is that it's impossible to get a stable DCF. I just hope set@home starts using the <dont_use_dcf/> facility.

I have a random question, but rather than start a new thread I'll just post it here:

I noticed that some of the top 20 computers in the statistics page have more processors than sounds right.

For example: GenuineIntel
Intel(R) Core(TM) i7-3930K CPU @ 3.20GHz [Family 6 Model 45 Stepping 6]
(12 processors)

and

GenuineIntel
Intel(R) Core(TM) i7 CPU X 980 @ 3.33GHz [Family 6 Model 44 Stepping 2]
(12 processors)

Arent those CPU's 6 core and 4 core? Each of the computer also has 6 GeForce GTX 590's, but I didn't think those were listed as processors. Like my C2D systems that have 1 GPU don't say "3 processors", they only say "2 processors" as is normal for C2D.

Anybody know why those systems would say 12 processors?

I'd join in with a pitchfork but before Jason developed fixes specifically for my dual 560ti rig, I was producing invalids/errors like it was my job.