2019 Formula Boinc Sprints

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biodoc

Diamond Member
Dec 29, 2005
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Mine were at 700 W when I came home from work, and are still below 1100 W now (should be above 1300 W). They are large machines with currently only a single client per machine, hence they are slower to recover.

I added a second boinc instance to my 2P several hours back and that seemed to help keep all 40 threads busy. That being said, more recent requests for more tasks are being ignored by the server on all machines.

Code:
Fri 12 Apr 2019 02:18:11 PM EDT | Rake search of diagonal Latin squares | Requesting new tasks for CPU
Fri 12 Apr 2019 02:18:13 PM EDT |  | Project communication failed: attempting access to reference site
Fri 12 Apr 2019 02:18:13 PM EDT | Rake search of diagonal Latin squares | Scheduler request failed: Server returned nothing (no headers, no data)
Fri 12 Apr 2019 02:18:14 PM EDT |  | Internet access OK - project servers may be temporarily down.
 

Ken g6

Programming Moderator, Elite Member
Moderator
Dec 11, 1999
16,360
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I guess it was doing better until everybody figured out it was doing better.
 
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Orange Kid

Elite Member
Oct 9, 1999
4,377
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RakeSearch day one'ish.
Late with the stats, but with the way this sprint is going it could be the same as it was at 11am.
Anyway, we find ourselves in 6th with a good lead on the French. Seems a couple of other teams have come to play on this one. DPC and SETI.Germany are putting in a lot of effort here and SETI.USA is playing hard to catch with XS.



Fron FreeDC:

 

TennesseeTony

Elite Member
Aug 2, 2003
4,235
3,668
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www.google.com
Re: Optimized app https://rake.boincfast.ru/rakesearch/forum_thread.php?id=39#172

In order to install this app, perform these steps:​
- close BOINC (config reload will not work);​
- unpack archive to project directory - on Windows it is path like "C:\Users\All Users\BOINC\projects\rake.boincfast.ru_rakesearch", on Linux /var/lib/boinc/projects/rake.boincfast.ru_rakesearch/ . On Linux also please make sure that rakesearch file is executable, and both rakesearch and app_info.xml are owned by boinc/boinc user/group;​
- start BOINC again.​
After doing this, in event log you should see entry for RakeSearch like "Found app_info.xml; using anonymous platform". Additionally you should see (Opti v1.0) in app name displayed in BOINC Mgr.​
 

crashtech

Lifer
Jan 4, 2013
10,580
2,150
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@TennesseeTony , those optimized apps seem as if they are 10x as fast in some instances! But I wonder if it even matters with the network availability we've been getting. At least the new app should be saving electricity, if not improving actual throughput.
 

StefanR5R

Elite Member
Dec 10, 2016
5,913
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Mine were at 700 W when I came home from work, and are still below 1100 W now (should be above 1300 W). They are large machines with currently only a single client per machine, hence they are slower to recover.
As soon as I wrote this and left, things began to fall apart again. My machines have been mostly idle since then.

Running only a single client on these was an obvious mistake. But on the other hand, running more clients means taking a more active part in this DDoS fest.
 

StefanR5R

Elite Member
Dec 10, 2016
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DPC and SETI.Germany are putting in a lot of effort here
SG are running a concerted effort at RakeSearch since January (with the goal of a high team rank before this project completes), and DPC since end of March. IOW these two teams aren't here for the sprint. (Still, what you wrote is true.)
 

biodoc

Diamond Member
Dec 29, 2005
6,285
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When I went to bed, my computers had no work. I woke up at 3 AM and decided to check on them and now they are happily crunching away with full caches and no upload/download issues. Perhaps enough people dropped out of the sprint so network bandwidth is no longer an issue.

EDIT: Just as I posted, my 2P is having issues now.
 

StefanR5R

Elite Member
Dec 10, 2016
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Kiska's site is showing periods with good contact to server status each night between about 01:00 UTC and 07:00 UTC. It's seems to me that network connectivity is going downhill again now. :-(

It's as if the project server is sharing an overcommitted connection whose traffic decreases when it is nighttime in Russia. On the other hand, RakeSearch admin hoarfrost indicated that the server's own networking performance (WRT number of simultaneous connections) could be the bottleneck.

From the RakeSearch forum:
hoarfrost said:
Load during the sprint (especially - in a phase of tasks flushing) in many times higher, than in "usual peaks".
Simple arithmetics - in last days before sprint project server received and processed about 3 ... 5 per second and generate ~1 .. 2 canonical results.
After sprint start, about 220 000 tasks hit to the server simultaneously. Really physical limits stretched out this wave, but load really in tens times higher than usual peaks.

But I like Formula BOINC Sprints because they flash bottlenecks. During the previous sprint main bottleneck was an I/O on hard drives. After - we increase server DRAM, MySQL caches, change data archiving strategy and now I/O not limit the performance. Most operations performed in file system DRAM cache. Network iterations as I see now is the main bottleneck. Several minutes ago we change some settings of apache and now monitor the situation. Really we monitor the server most of the day.

And great thanks for all crunchers for support and attention!

A comment on this post by one of the Pentathlon organizers in the SETI.Germany forum (translated by myself):
pschoefer said:
In my opinion, this is nicely pointing out two items:
  1. The main point of criticism about Formula BOINC sprints, that project operators don't have a chance to prepare for them, was not the problem in this particular case. Even with advance warning, the admin would not have known if and which problems would occur now, after the enhancements which were implemented since the last sprint. This is different from project admins who either look rarely at their project or know beforehand what parameters they need to tune, but neither of these is applies to RakeSearch.

  2. It is not that project operators would dislike such short-term peak loads. The statement of the RakeSearch-Admin, that only the peaks reveal what in particular can be improved, is something which I heard in Pentathlon related communication with the operators of other projects too. Even if some users claim beforehand that a project could never cope with the load, and then sometimes see themselves proven true, there is actually little way of really knowing this in advance. (Even PrimeGrid, who master each of their own challenges today seemingly without effort, had to take several attempts until this worked).

    Therefore, there are practically no project operators who reject such competitions because of an expectation of stability problems. (In the preselection for the upcoming Pentathlon, there are exactly two projects missing because of objections of the respective admins, both because of clearly foreseeable shortage of WUs which could not be remedied even with the advance notice. Four more projects are missing because of no response to my inquiry; a minority, even if they did not care to respond because of expected problems).
From the participants' point of view, it surely may be annoying when a project does not work stable because of a competition. Be it because one wanted to run in the competition, or because one only wanted to peacefully crunch along in this project. (But for cases like this, there is always the simple solution of adding a backup project with 0 resource share, at least to avoid idle times.)

From the scientific point of view, damage would be done only if a project breaks down for longer time. (Out of lack of interest, I cannot assess how often that happens at Formula BOINC sprints. Out of the past 9 Pentathlons, I remember only one project in which less work than normal was completed due to longer down-times.)

One could argue that long-term damage is done because regular crunchers could leave a project due to such problems. I do not have any evidence though that this really happens. (The best counter-example is SETI@home, which repeatedly has problems even during normal operation but has got a stable base of participants regardless.) I even would argue that many regular crunchers of a project do not even notice much of such problems, if they are not drawn out over weeks. One could keep this in mind, before getting too upset. ;-)
 
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Orange Kid

Elite Member
Oct 9, 1999
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RakeSearch final;
At least I hope it is the final. Waited an extra hour so should be hopefully.
6th for us. Very nice considering.....(I'll let everyone fill in there own thoughts here.)
Great sprint all and lets hope the next goes a bit smoother.




From FreeDC;



The F1 China Results;

  • Lewis Hamilton 1:32:06.350
  • Valtteri Bottas +6.552
  • Sebastian Vettel +13.744
 

StefanR5R

Elite Member
Dec 10, 2016
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RakeSearch final;
At least I hope it is the final.
The last update at formula-boinc.org happened before 15:11 UTC. It is now 1h53m after the end of the race (which was 15:59 UTC), and the stats are still stuck at what was shown 48m before the end. (But that should not affect our rank.)
 

StefanR5R

Elite Member
Dec 10, 2016
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taken from server_status.php just before the sprint:
Research progress

Rake search of diagonal Latin squares of rank 9 (%) ________ 75.581

I'm curious what the percentage will be when the sprint is over.

Edit 2,
Probably not much further, because the server evidently can handle only a fraction of what the volunteers could complete.
It is now showing 79.497 %.
So, > 1 % progress per day.

Overall credits per day were visibly higher than normal --- but not by much, owing to XtremeSystems being highly active at RakeSearch since the beginning of April. Graph from BOINCstats:



PS,
I have to say that I am a bit disappointed that we were displaced by two teams in this sprint who do not actively participate in Formula Boinc sprints. But on the other hand, these two teams were at it with user counts which exceeded ours by a lot.

PPS,
the project reached 70 % completion on April 2. So, progress rate was 0.6 % per day during the first part of April.
 
Last edited:
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crashtech

Lifer
Jan 4, 2013
10,580
2,150
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Hmm, I wonder what it's going to be this time? I have 100% of my junker fleet ready to go!
 

Orange Kid

Elite Member
Oct 9, 1999
4,377
2,164
146
It is never anything I an running. So it will not be einstein, universe or cosmo.
 

crashtech

Lifer
Jan 4, 2013
10,580
2,150
146
All my junk is flying in formation, even the old Xeon E5440 rig that mainly serves to hold a spare HD7970 in case a Sprint is DP friendly. Queues are emptying out as we speak. I've regained my enthusiasm but the TeAm seems to be slipping in the FB standings!? Hope we can reverse that.
 
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TennesseeTony

Elite Member
Aug 2, 2003
4,235
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www.google.com
PrimeGrid

Refresh my memory, what PG tasks can be bunkered for 24 hours easily yet still pays very well? I need a sub-project for both GPU and for CPU...
 
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