Message boards : Number crunching : Universe@home selected for Formula BOINC Sprint #2 (24-27 March 2022)
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UBT - Timbo

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Message 5193 - Posted: 24 Mar 2022, 20:30:50 UTC
Last modified: 24 Mar 2022, 20:31:06 UTC

Hi all

The Universe@home project has been selected for the Formula BOINC Sprint #2 (as from 8pm UTC 24-27 March 2022)

regards
Tim
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Message 5194 - Posted: 25 Mar 2022, 17:42:58 UTC

Odd but I cannot seem to download any tasks ATM
Universe BHspin v2 3551605 748721 1.98 (0.17 - 137.22) 2055

Crunching@EVGA The Number One Team in the BOINC Community. Folding@EVGA The Number One Team in the Folding@Home Community.
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Message 5195 - Posted: 25 Mar 2022, 20:41:44 UTC

Probably server is overloaded, I have problems with getting tasks too.
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Message 5196 - Posted: 25 Mar 2022, 22:18:53 UTC

I just got in front of my PC's and they're almost all running dry with no tasks.
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vaughan

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Message 5197 - Posted: 26 Mar 2022, 2:29:21 UTC

Why does server status show heaps of tasks yet none of my Windows computers can get any to crunch?
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Profile Keith Myers
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Message 5198 - Posted: 26 Mar 2022, 4:06:59 UTC

Remember the server is only one machine. So this Formula Boinc challenge is hammering the server and making it very slow in response on the web server process and for uploading I see also.

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Profile Krzysztof Piszczek - wspieram ...
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Message 5200 - Posted: 26 Mar 2022, 7:31:26 UTC - in response to Message 5198.  
Last modified: 26 Mar 2022, 7:53:52 UTC

Currently is ~750k WU in progress (and the quantity is stable since competition start).
In last 24 hours server gets ~350k results - so another 350k was also sent to clients.

I believe, the problems with getting tasks is incidentally when loads of clients trying get tasks in the same time.
I was wrong.
I have changed sheduler algorithm to old one and I think it help...
Krzysztof 'krzyszp' Piszczek

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Message 5201 - Posted: 26 Mar 2022, 9:14:07 UTC
Last modified: 26 Mar 2022, 9:19:00 UTC

Work requests are still responded to with "Project has no tasks available" most of the time.

From what I understood, the scheduler does not access the entire pool of what we see as "tasks ready to send" at server_status.php. Rather, the scheduler is supplied from a small in-memory queue of unassigned tasks. (Was this a shared-memory buffer between feeder and scheduler?) Whenever a server is receiving very frequent work requests like the U@h server is now, the challenge is to get this small in-memory buffer refilled.

I don't know what precisely can be tuned server-side to address this. It may be a matter of increasing responsiveness of the database, or maybe it's as simple as increasing the size of this mentioned in-memory buffer.
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Message 5204 - Posted: 27 Mar 2022, 12:48:41 UTC

Komunikaty klienta

27 mar 2022 14:19:15||Internet access OK - project servers may be temporarily down.

27 mar 2022 14:19:14|Universe@Home|Scheduler request failed: Failure when receiving data from the peer

27 mar 2022 14:19:14||Project communication failed: attempting access to reference site

27 mar 2022 14:19:12|Universe@Home|Not requesting tasks: don't need ()

27 mar 2022 14:19:12|Universe@Home|Reporting 1 completed tasks

27 mar 2022 14:19:12|Universe@Home|Sending scheduler request: To report completed tasks.

27 mar 2022 14:13:52||Internet access OK - project servers may be temporarily down.

27 mar 2022 14:13:51|Universe@Home|Scheduler request failed: Timeout was reached

27 mar 2022 14:13:51||Project communication failed: attempting access to reference site

27 mar 2022 14:11:50|Universe@Home|Not requesting tasks: don't need ()

27 mar 2022 14:11:50|Universe@Home|Reporting 1 completed tasks

27 mar 2022 14:11:50|Universe@Home|Sending scheduler request: To report completed tasks.

27 mar 2022 14:09:41||Internet access OK - project servers may be temporarily down.

27 mar 2022 14:09:40|Universe@Home|Scheduler request failed: Timeout was reached

27 mar 2022 14:09:40||Project communication failed: attempting access to reference site

27 mar 2022 14:07:39|Universe@Home|Not requesting tasks: don't need ()

27 mar 2022 14:07:39|Universe@Home|Reporting 1 completed tasks

27 mar 2022 14:07:39|Universe@Home|Sending scheduler request: To report completed tasks.

27 mar 2022 14:06:15||Internet access OK - project servers may be temporarily down.

27 mar 2022 14:06:14|Universe@Home|Scheduler request failed: Failure when receiving data from the peer

27 mar 2022 14:06:14||Project communication failed: attempting access to reference site

27 mar 2022 14:03:36||Internet access OK - project servers may be temporarily down.

27 mar 2022 14:03:35|Universe@Home|Started upload of universe_bh2_190723_396_299799701_20000_1-999999_800100_1_r1204474529_3

27 mar 2022 14:03:35|Universe@Home|Started upload of universe_bh2_190723_396_299799701_20000_1-999999_800100_1_r1204474529_2

27 mar 2022 14:03:35|Universe@Home|Backing off 00:02:00 on upload of universe_bh2_190723_396_299799701_20000_1-999999_800100_1_r1204474529_1

27 mar 2022 14:03:35|Universe@Home|Temporarily failed upload of universe_bh2_190723_396_299799701_20000_1-999999_800100_1_r1204474529_1: transient HTTP error

27 mar 2022 14:03:35|Universe@Home|Backing off 00:02:15 on upload of universe_bh2_190723_396_299799701_20000_1-999999_800100_1_r1204474529_0

27 mar 2022 14:03:35|Universe@Home|Temporarily failed upload of universe_bh2_190723_396_299799701_20000_1-999999_800100_1_r1204474529_0: transient HTTP error

27 mar 2022 14:03:35||Project communication failed: attempting access to reference site
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Profile Tom M

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Message 5205 - Posted: 27 Mar 2022, 16:48:36 UTC

Having trouble uploading this morning...
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Profile Krzysztof Piszczek - wspieram ...
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Message 5211 - Posted: 27 Mar 2022, 17:19:06 UTC - in response to Message 5205.  

Fixed
Krzysztof 'krzyszp' Piszczek

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Profile Keith Myers
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Message 5223 - Posted: 27 Mar 2022, 18:54:30 UTC - in response to Message 5211.  

Fixed

NOT fixed.
Still can't upload work and incurring increasing backoffs.

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Message 5224 - Posted: 27 Mar 2022, 19:00:43 UTC - in response to Message 5223.  

Fixed

NOT fixed.
Still can't upload work and incurring increasing backoffs.

I'm seeing the same issue as Keith across all my PCs. Fastest machines are falling further behind.

With the Dutch Cows Stampede, people from WCG, and this Sprint, I think we're hitting the limit of what the server can handle.
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Message 5226 - Posted: 27 Mar 2022, 19:55:05 UTC

Yea you could say the server is a little overloaded:
As I post this the Server stats are
Computing project
    1,098,880.00 GigaFLOPS (110% PetaFLOPS)


How much more can it handle before busting?

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Profile Keith Myers
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Message 5228 - Posted: 27 Mar 2022, 22:56:31 UTC

Looks like the Formula BOINC people influx departed and I was finally able to clear all my stalled uploads.

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Message boards : Number crunching : Universe@home selected for Formula BOINC Sprint #2 (24-27 March 2022)




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