Vacancy (Dec 17 2008)

Message boards : Technical News : Vacancy (Dec 17 2008)

To post messages, you must log in.

AuthorMessage
Profile Matt Lebofsky
Volunteer moderator
Project administrator
Project developer
Project scientist
Avatar

Send message
Joined: 1 Mar 99
Posts: 1441
Credit: 213,689
RAC: 0
United States
Message 841177 - Posted: 17 Dec 2008, 23:50:51 UTC

So it's official: you can now run SETI@home on your NVIDIA GPU. Of course they're still working out the kinks, and it has yet to be seen what effects (immediate and long term) this will have on our servers and known bottlenecks. Such things are quite unpredictable, given the dizzying long list of variables.

In order to keep our bandwidth from going bonkers due to all the new client downloads, we employ the use of Coral Cache. This is all well and good, except that some ISPs out there firewall http redirects, which means a tiny subset of users cannot download these new clients. This is unfortunate, as we have no choice because we can't handle the new client downloads ourselves. So these few users will suffer a bit until we can remove such caching.

Our replica server never did recover from the outage yesterday, causing stats of various kinds to be jammed for the past day or so. This morning we found scary log messages and we couldn't even shut mysql down gracefully, so we had to kill the process and reboot the machine. It's been in really slow recovery mode all day. When finished there's a good chance it'll be out of sync from the master and will have to be rebuilt from scratch anyway. Sigh. In the meantime, I'm pointing all queries at the master, which is loading it down a bit and causing us some minor grief (running out of work to send, for example).

- Matt
-- BOINC/SETI@home network/web/science/development person
-- "Any idiot can have a good idea. What is hard is to do it." - Jeanne-Claude
ID: 841177 · Report as offensive
Profile JLDun
Volunteer tester
Avatar

Send message
Joined: 21 Apr 06
Posts: 535
Credit: 133,837
RAC: 398
United States
Message 841288 - Posted: 18 Dec 2008, 4:12:38 UTC - in response to Message 841177.  

Thanks for the Updates.


... and I have my fingers crossed in hope that the replica can quickly get back to it's updates...
ID: 841288 · Report as offensive
Aaron

Send message
Joined: 3 Apr 99
Posts: 18
Credit: 535,856
RAC: 0
United Kingdom
Message 841352 - Posted: 18 Dec 2008, 8:00:48 UTC

Thanks for the Updates.

Will a CUDA version of SETI be coming out for Linux?
ID: 841352 · Report as offensive
Profile ML1
Volunteer tester

Send message
Joined: 25 Nov 01
Posts: 9202
Credit: 5,939,190
RAC: 1,826
United Kingdom
Message 841400 - Posted: 18 Dec 2008, 11:54:17 UTC - in response to Message 841177.  
Last modified: 18 Dec 2008, 11:55:30 UTC

So it's official: you can now run SETI@home on your NVIDIA GPU. Of course they're still working out the kinks, ...

Great stuff and hopefully there'll be a flurry of bug-fixes to keep pace with what is found.

Regardless of a few squeals, it must be well worth even a baptism of fire. (OK, so here's hoping for not too much of the fire and brimstone and burnt bits!)

In order to keep our bandwidth from going bonkers due to all the new client downloads, we employ the use of Coral Cache. This is all well and good, except that some ISPs out there firewall http redirects, ...

Either of "Websense" and (long time) buggy Windows name servers can also block things.

The Coral Cache is a rather interesting system. See:

PlanetLab
Coral Content Distribution Network

... and very apt for Boinc to be using it!


... causing us some minor grief (running out of work to send, for example).

Hopefully a positive future occurrence when the GPU efficiency is improved ;-)


Hope you don't suffer too many new headaches with the yet more new stuff.

Happy fast crunchin',

Regards,
Martin
See new freedom: Mageia5
See & try out for yourself: Linux Voice
The Future is what We all make IT (GPLv3)
ID: 841400 · Report as offensive
Profile BMaytum
Volunteer tester
Avatar

Send message
Joined: 3 Apr 99
Posts: 104
Credit: 4,238,265
RAC: 0
United States
Message 841526 - Posted: 18 Dec 2008, 18:20:47 UTC

@ Matt:

I got the Seti@home 6.06-CUDA app yesterday from the Beta Test area, and quickly crunched 1 WU with it yesterday. BUT me and others aren't able to upload completed WU results from our Seti@home Beta Test projects, as noted in this growing thread:
http://setiweb.ssl.berkeley.edu/beta/forum_thread.php?id=1460

I don't know if the upload problem is for Cuda-only or also for AP-5.00 WUs (I'm crunching 2 AP-5.00 WUs, only 30% done after 9+ hrs cputime). Anyway, could you/someone look into the upload problem please.
Sabertooth Z77, i7-3770K@4.2GHz, GTX680, W8.1Pro x64
P5N32-E SLI, C2D E8400@3Ghz, GTX580, Win7SP1Pro x64 & PCLinuxOS2015 x64
ID: 841526 · Report as offensive
Richard HaselgroveProject Donor
Volunteer tester

Send message
Joined: 4 Jul 99
Posts: 11143
Credit: 83,868,398
RAC: 47,032
United Kingdom
Message 841528 - Posted: 18 Dec 2008, 18:29:07 UTC - in response to Message 841526.  

I don't know if the upload problem is for Cuda-only ....

I'm pretty sure it's a generic problem affecting the whole upload server: I've got a whole lot of v6.03 CPU tasks trying to upload. It's BOINC which does the uploads (not the CUDA app, the CPU app, or the AP app), and according to one user BOINC is reporting a 503 "Service Temporarily Unavailable" error.

The bad news is, Matt switched his fourth working day of the week from Thursday to Friday a little while back, so he probably won't be able to read or act upon this information until tomorrow.
ID: 841528 · Report as offensive
Profile BMaytum
Volunteer tester
Avatar

Send message
Joined: 3 Apr 99
Posts: 104
Credit: 4,238,265
RAC: 0
United States
Message 841691 - Posted: 18 Dec 2008, 22:34:32 UTC - in response to Message 841528.  
Last modified: 18 Dec 2008, 22:39:23 UTC

Richard, thanks for your reply.

A short time ago, one of my two (Beta Test project) AP-5.00 WUs finished but neither it nor the (Beta Test project) 6.06-cuda WU that finished yesterday will upload. However, 2 recently completed (Non-Beta SETI@home project) MB WUs finished crunching and both DID upload successfuly. Here's excerpt from BOINC Manager v6.4.5 Message log:

12/18/2008 2:18:03 PM|SETI@home|Computation for task 14no08ac.7403.6386.9.8.155_1 finished
12/18/2008 2:18:03 PM|SETI@home|Starting 14no08ac.719.13748.12.8.198_1
12/18/2008 2:18:03 PM|SETI@home|Starting task 14no08ac.719.13748.12.8.198_1 using setiathome_enhanced version 528
12/18/2008 2:18:05 PM|SETI@home|Started upload of 14no08ac.7403.6386.9.8.155_1_0
12/18/2008 2:18:17 PM|SETI@home|Finished upload of 14no08ac.7403.6386.9.8.155_1_0
12/18/2008 2:18:48 PM|SETI@home|Sending scheduler request: Requested by user. Requesting 0 seconds of work, reporting 1 completed tasks
12/18/2008 2:18:53 PM|SETI@home|Scheduler request completed: got 0 new tasks
12/18/2008 2:19:35 PM|SETI@home|Started upload of 02dc08ad.7356.217693.11.8.254_0_0
12/18/2008 2:19:44 PM|SETI@home|Finished upload of 02dc08ad.7356.217693.11.8.254_0_0
12/18/2008 2:20:43 PM|SETI@home|Sending scheduler request: Requested by user. Requesting 0 seconds of work, reporting 1 completed tasks
12/18/2008 2:20:48 PM|SETI@home|Scheduler request completed: got 0 new tasks
12/18/2008 2:21:47 PM|SETI@home Beta Test|Started upload of 03no08aa.4033.2526.5.11.133_0_0
12/18/2008 2:21:47 PM|SETI@home Beta Test|Started upload of ap_03no08aa_B2_P0_00225_20081217_19478.wu_1_0
12/18/2008 2:22:51 PM|SETI@home Beta Test|Temporarily failed upload of ap_03no08aa_B2_P0_00225_20081217_19478.wu_1_0: HTTP error
12/18/2008 2:22:51 PM|SETI@home Beta Test|Backing off 2 hr 10 min 50 sec on upload of ap_03no08aa_B2_P0_00225_20081217_19478.wu_1_0
12/18/2008 2:23:33 PM|SETI@home Beta Test|Temporarily failed upload of 03no08aa.4033.2526.5.11.133_0_0: HTTP error
12/18/2008 2:23:33 PM|SETI@home Beta Test|Backing off 41 min 3 sec on upload of 03no08aa.4033.2526.5.11.133_0_0
Sabertooth Z77, i7-3770K@4.2GHz, GTX680, W8.1Pro x64
P5N32-E SLI, C2D E8400@3Ghz, GTX580, Win7SP1Pro x64 & PCLinuxOS2015 x64
ID: 841691 · Report as offensive
Profile Dr. C.E.T.I.
Avatar

Send message
Joined: 29 Feb 00
Posts: 16015
Credit: 749,607
RAC: 226
United States
Message 841976 - Posted: 19 Dec 2008, 13:46:57 UTC


. . . Thanks for the Updates Matt

- Berkeley - as usual nice work

~ kinks always have a way of workin' themselves out eh ~


BOINC Wiki . . .

Science Status Page . . .
ID: 841976 · Report as offensive
Profile KWSN THE Holy Hand Grenade!
Volunteer tester
Avatar

Send message
Joined: 20 Dec 05
Posts: 2582
Credit: 34,791,487
RAC: 20,419
United States
Message 842639 - Posted: 20 Dec 2008, 19:10:38 UTC - in response to Message 841691.  

[quote]Richard, thanks for your reply.

A short time ago, one of my two (Beta Test project) AP-5.00 WUs finished but neither it nor the (Beta Test project) 6.06-cuda WU that finished yesterday will upload. However, 2 recently completed (Non-Beta SETI@home project) MB WUs finished crunching and both DID upload successfully. Here's excerpt from BOINC Manager v6.4.5 Message log:

[snip]

Please note that Seti beta is a different project and that, while running on the same hardware, (in some cases) the processes involved are specific to beta - they (supposedly) don't interfere with the main project and vice-versa.

.
ID: 842639 · Report as offensive

Message boards : Technical News : Vacancy (Dec 17 2008)


 
©2016 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.