Panic Mode On (76) Server Problems?


log in

Advanced search

Message boards : Number crunching : Panic Mode On (76) Server Problems?

Previous · 1 . . . 11 · 12 · 13 · 14 · 15 · 16 · 17 . . . 21 · Next
Author Message
bill
Send message
Joined: 16 Jun 99
Posts: 859
Credit: 22,317,956
RAC: 18,221
United States
Message 1274509 - Posted: 23 Aug 2012, 18:49:59 UTC - in response to Message 1274464.

Sure, a GPU doing a VLAR might be better than an idle GPU (depending from your point of view),

bill - You would have to prove that an idle gpu is better than a working gpu.


The GPU does not need to be idle, it's just a matter of BOINC configuration: large enough cache and if that does not help backup project (probably necessary anyway with the current load on S@H's internet connection).



Your idle GPU issue is something that the user can fix. Also such GPU might do more for the project if it's idle for a while and than gets again suitable WUs to work on.

bill - I run eight other projects, but doing work for them accomplishes nothing for SETI, does it?


Blocking it for hours or even days with a bunch of VLARs might indeed lead to less job done at the end of the day/month/year/whatever.

bill - I'm not "blocking anything". Idle gpu, remember? My pc does vlars in 2
to 3 hours three at a time. I don't consider that a problem.
I've seen SETI be down for over a month.

So yes, an idle GPU for a while might be better unless the servers would send just 1 VLAR in case they have nothing else and the GPU is idle.


You do realize you just contradicted yourself? Reread your last line.

I don't care how others run their pc, so long as they are not aborting work
that does not does not cause errors. Just because it takes longer is not an excuse to off load work units onto other people. That's cherry picking.

Josef W. Segur
Volunteer developer
Volunteer tester
Send message
Joined: 30 Oct 99
Posts: 4201
Credit: 1,029,373
RAC: 245
United States
Message 1274515 - Posted: 23 Aug 2012, 18:59:14 UTC

Every time VLARs are discussed I remember The Attack of the Killer 58.7s. In that late 2006 time frame with only CPU crunching and coarser chirp resolution, that was the granted credit rate for VLARs.

Conceptually, assigning work in a manner such that each host is most productive is obviously desirable. The .vlar exclusion for CUDA does align with that and is definitely needed as long as the 6.08 and 6.09 stock applications are in use on older CUDA cards. My impression is that when SETI@home v7 is released here, both CUDA and NV OpenCL implementations should be capable of doing VLARS without excessive screen lags, etc., and with less time penalty. An adjustment of the basic splitter estimate could be used to better balance credit grants.

The fact remains that VLAR tasks are harder to divide into small enough parts to take full advantage of the parallel nature of GPU crunching. Newer GPUs do have the capability to be subdivided so that only part of the GPU would be working on the least divisible parts of the task, but that's another layer of software complexity and there would be issues with validation on result_overflow tasks. That brings this discussion back toward the "Server problems" subject area.

Joe

Profile Alex Storey
Volunteer tester
Avatar
Send message
Joined: 14 Jun 04
Posts: 534
Credit: 1,628,656
RAC: 503
Greece
Message 1274518 - Posted: 23 Aug 2012, 19:12:41 UTC - in response to Message 1274390.

Please don´t missunderstud what I and Richard says, SETI is a project that is spected to runs DECADES before any spected success could be achived (unless of course our little green mens give us a hand), so "fast or slow" is relative to that, the difference from a 12 min WU (GPU) to a 1 1/2 hour (CPU) makes little difference to the 50 Years or maybe more project.

Any help is wanted, just don´t need to be worried on that particular point, we are just warning because the video lag could be a serius problem if you need to use a not crunching only host
.


And when we (or our children, or our chilren's children) DO find the elusive little fraks, I'm sure the project will have all the funding and support it needs to last another 500 years. You know, so we can find the next race, and then the next one, and then the next one... :)

bill
Send message
Joined: 16 Jun 99
Posts: 859
Credit: 22,317,956
RAC: 18,221
United States
Message 1274522 - Posted: 23 Aug 2012, 19:21:23 UTC - in response to Message 1274515.

[Joke]"Is that even permitted in this forum?"[/Joke]

I can wait.

Profile Link
Avatar
Send message
Joined: 18 Sep 03
Posts: 823
Credit: 1,544,690
RAC: 366
Germany
Message 1274528 - Posted: 23 Aug 2012, 19:34:08 UTC - in response to Message 1274509.

Blocking it for hours or even days with a bunch of VLARs might indeed lead to less job done at the end of the day/month/year/whatever.

bill - I'm not "blocking anything". Idle gpu, remember? My pc does vlars in 2
to 3 hours three at a time. I don't consider that a problem.

Don't know how long your GPU needs for a 0.44 WU, but idle GPU for 5 minutes (until the next request, which might give you something else than VLARs) might be indeed better solution than crunching VLARs, just do the math, you have the numbers.



So yes, an idle GPU for a while might be better unless the servers would send just 1 VLAR in case they have nothing else and the GPU is idle.

You do realize you just contradicted yourself? Reread your last line.

What's wrong with that line? If the servers were able to react like that, we could consider doing that in case of "VLAR storm" which could keep the GPU idle for several hours. I was not talking about filling up the GPU cache with VLARs.



I don't care how others run their pc, so long as they are not aborting work
that does not does not cause errors. Just because it takes longer is not an excuse to off load work units onto other people. That's cherry picking.

Other people might be very happy to get those WUs, my AMD CPUs love VLARs for example. But since the project won't be sending any VLARs to GPUs anymore, at least not on purpose, we don't need to worry about much cherry picking.
____________
.

Profile Fred J. Verster
Volunteer tester
Avatar
Send message
Joined: 21 Apr 04
Posts: 3232
Credit: 31,585,541
RAC: 0
Netherlands
Message 1274529 - Posted: 23 Aug 2012, 19:35:57 UTC - in response to Message 1272922.

Anyone else having trouble reporting ?
Uploads are going through ok but Scheduler requests are timing out.

T.A.


I'm gettin only GPU tasks since a few days.
So the i7-2600 CPU is idle so less heat.
Reporting seems to be no problem.

But Down- and Upload speed is acceptable, seen it far worse.


____________


Knight Who Says Ni N!, OUT numbered.................

Profile Donald L. Johnson
Avatar
Send message
Joined: 5 Aug 02
Posts: 5995
Credit: 630,653
RAC: 966
United States
Message 1274575 - Posted: 23 Aug 2012, 21:22:41 UTC - in response to Message 1274498.
Last modified: 23 Aug 2012, 21:24:26 UTC


I've been getting a lot of "No tasks sent" messages lately, and haven't been able to get any work for about an hour and a half.

I believe a shorty storm may be keeping the feeder rather dry.
Lots of other comments about not getting work lately.

Last night (22Aug2012) I reported an AP and got 10 MB shorties.
Shortly after midnight PDT (0730 UTC) today I got 30 more of them.
Just reported 6 MB shorties and got 2 mid-range MBs back.
No time-outs or failed scheduler requests in my event log.
Things might be settling down.
____________
Donald
Infernal Optimist / Submariner, retired

Profile Sliver
Avatar
Send message
Joined: 18 May 11
Posts: 281
Credit: 6,961,716
RAC: 38
United States
Message 1275717 - Posted: 26 Aug 2012, 11:34:38 UTC - in response to Message 1273720.

Seems like our wingmens take few days off, normaly Pendings/Validated = 2x, to much pendings = to low RAC!. Now = 12282WU wonder to see when the number stop growing.


Yeah, I'm actually starting to realize what you meant about pendings piling up. I've never had so many, but then again, judging by the ones that have validated it looks like they're mostly going to be shorties. But still, a ton of pending WU's....holy moly!

____________

Sten-Arne
Volunteer tester
Send message
Joined: 1 Nov 08
Posts: 3333
Credit: 18,999,914
RAC: 22,568
Sweden
Message 1275806 - Posted: 26 Aug 2012, 15:54:39 UTC
Last modified: 26 Aug 2012, 15:57:16 UTC

Huge Panic. The panic thread is now way above the 200 posts, where arkayn usually would start a new Panic Mode thread.

This thread is getting too big for my 300 Baud modem.....

What to do, what to do? :-)
____________

Profile Link
Avatar
Send message
Joined: 18 Sep 03
Posts: 823
Credit: 1,544,690
RAC: 366
Germany
Message 1275810 - Posted: 26 Aug 2012, 15:59:45 UTC - in response to Message 1275806.

I don't think we need the 200 posts limit since the forum software finally arrived in 21st century and is splitting the thread to pages. Don't see any issues so far and I'm also only on UMTS, usually down to 64kbit/s.
____________
.

Profile Sunny129
Avatar
Send message
Joined: 7 Nov 00
Posts: 190
Credit: 3,163,755
RAC: 0
United States
Message 1275814 - Posted: 26 Aug 2012, 16:06:39 UTC - in response to Message 1275806.

What to do, what to do? :-)

go to your "community preferences" and set the maximum number of posts per page to something manageable on your machine.
____________

Sten-Arne
Volunteer tester
Send message
Joined: 1 Nov 08
Posts: 3333
Credit: 18,999,914
RAC: 22,568
Sweden
Message 1275825 - Posted: 26 Aug 2012, 16:27:16 UTC
Last modified: 26 Aug 2012, 16:28:54 UTC

Ok, I think I will have to stop using my Swedish, and/or English type of humour. Seems as if only people from England (Great Britain), and Nordic people get it.

Be serious Sten-Arne, be very very serious.
____________

msattler
Volunteer tester
Avatar
Send message
Joined: 9 Jul 00
Posts: 38260
Credit: 557,792,178
RAC: 621,973
United States
Message 1275826 - Posted: 26 Aug 2012, 16:28:39 UTC - in response to Message 1275825.

Ok, I think I will have to stop using my Swedish, and/or English type of humour. Seems as if only English people and Nordic people get it.

Be serious Sten-Arne, be very very serious.


Meow?
____________
*********************************************
Embrace your inner kitty...ya know ya wanna!

I have met a few friends in my life.
Most were cats.

Sten-Arne
Volunteer tester
Send message
Joined: 1 Nov 08
Posts: 3333
Credit: 18,999,914
RAC: 22,568
Sweden
Message 1275827 - Posted: 26 Aug 2012, 16:29:47 UTC - in response to Message 1275826.

Ok, I think I will have to stop using my Swedish, and/or English type of humour. Seems as if only English people and Nordic people get it.

Be serious Sten-Arne, be very very serious.


Meow?


Yes, that was serious enough.
____________

Profile Mike
Volunteer tester
Avatar
Send message
Joined: 17 Feb 01
Posts: 23344
Credit: 31,733,577
RAC: 24,109
Germany
Message 1275828 - Posted: 26 Aug 2012, 16:31:17 UTC

I was just wondering Sten.
Just returned from London.

____________

msattler
Volunteer tester
Avatar
Send message
Joined: 9 Jul 00
Posts: 38260
Credit: 557,792,178
RAC: 621,973
United States
Message 1275829 - Posted: 26 Aug 2012, 16:32:26 UTC - in response to Message 1275827.

Ok, I think I will have to stop using my Swedish, and/or English type of humour. Seems as if only English people and Nordic people get it.

Be serious Sten-Arne, be very very serious.


Meow?


Yes, that was serious enough.

Oh, the kitties can get VERY serious.
____________
*********************************************
Embrace your inner kitty...ya know ya wanna!

I have met a few friends in my life.
Most were cats.

juan BFB
Volunteer tester
Avatar
Send message
Joined: 16 Mar 07
Posts: 4928
Credit: 268,433,857
RAC: 353,929
Brazil
Message 1275835 - Posted: 26 Aug 2012, 16:51:08 UTC - in response to Message 1275717.

Seems like our wingmens take few days off, normaly Pendings/Validated = 2x, to much pendings = to low RAC!. Now = 12282WU wonder to see when the number stop growing.


Yeah, I'm actually starting to realize what you meant about pendings piling up. I've never had so many, but then again, judging by the ones that have validated it looks like they're mostly going to be shorties. But still, a ton of pending WU's....holy moly!


Now you see what i say, is not just about RAC is about the big pendings number (still have more than 11K). All the new work done have the target of Oct so may of the wingmens must still off dutty.

____________

Treasurer
Send message
Joined: 13 Dec 05
Posts: 109
Credit: 1,564,514
RAC: 0
Germany
Message 1275964 - Posted: 26 Aug 2012, 21:06:53 UTC

Sorry if post is semi OT. If anyone doesn't get enough tasks due server problems/slow downloads, LHC@home has over 400k units waiting.
____________

B-Man
Volunteer tester
Send message
Joined: 11 Feb 01
Posts: 253
Credit: 147,366
RAC: 0
United States
Message 1276753 - Posted: 28 Aug 2012, 20:07:14 UTC

I guess we are back. Welcome back everyone.
____________

Rolf
Send message
Joined: 16 Jun 09
Posts: 114
Credit: 7,808,621
RAC: 318
Switzerland
Message 1276767 - Posted: 28 Aug 2012, 20:48:11 UTC - in response to Message 1275825.

Seems as if only people from England (Great Britain), and Nordic people get it.


If you call Swiss people Nordic people, I agree! If you don't, please add Swiss people or just Switzerland!

Please go on like this, Sten-Arne!

Rolf

Previous · 1 . . . 11 · 12 · 13 · 14 · 15 · 16 · 17 . . . 21 · Next

Message boards : Number crunching : Panic Mode On (76) Server Problems?

Copyright © 2014 University of California