1) Message boards : Sixtrack Application : "no tasks are available for Sixtrack", over 1 million visible (Message 34195)
Posted 31 Jan 2018 by Profile pschoefer
Post:
For example, a smaller max_wus_to_send


With that in mind I tried setting up 'school' preferences asking for 1 core, 1 task, Sixtrack only and have tried manually updating for an hour on my old Dell laptop and can't secure even a single WU.

Was hoping that a new Data directory for Sixtrack only requests could solve the issue but this experiment would had to work,

While you might increase everyone else's probability to get tasks if you request only one single task, that's not quite what I was suggesting. However, since work was flowing nicely in the morning but I haven't received a single task after 14:00 UTC, it is unlikely that measures to spread the tasks across more machines would help in this situation at all.

With only two tasks remaining, my machines ran dry a bit earlier than wanted, but I was going to switch to another project tonight anyway.
2) Message boards : Sixtrack Application : "no tasks are available for Sixtrack", over 1 million visible (Message 34169)
Posted 30 Jan 2018 by Profile pschoefer
Post:
Back last June, we were in a similar situation, and the feeder and scheduler parameters were re-tuned, increasing the scheduler shared memory buffer and feeder query size; the SixTrack priority was increased as well, to avoid that the scheduler buffer runs out of SixTrack tasks. The feeder and scheduler parameters cannot be tune-up further, as they are already at the limit of the server capabilities. On the other hand, we will warn the users to be more cautious in submitting new work.

I'm no expert in dealing with a BOINC server in general and your infrastructure in particular, but depending on which quantities (number of tasks sent out per time interval, fraction of successful work requests by clients, etc.) were optimized by tuning the feeder and scheduler parameters, there might still be room for further improvement. For example, a smaller max_wus_to_send (i.e., the maximum number of tasks sent to a client per scheduler request) could lead to less volunteers receiving the annoying "no tasks are available" message, even if the total number of tasks being sent out per time interval is already as high as possible.
3) Message boards : Sixtrack Application : "no tasks are available for Sixtrack", over 1 million visible (Message 34149)
Posted 29 Jan 2018 by Profile pschoefer
Post:
... and since 16:00 UTC, it got worse again.
4) Message boards : Sixtrack Application : "no tasks are available for Sixtrack", over 1 million visible (Message 34144)
Posted 29 Jan 2018 by Profile pschoefer
Post:
That's the number of tasks that are in the database but not yet sent out. Before they can actually be send out, however, the server has to load them into memory. This can easily become a bottleneck.

That said, I note that the situation has improved in the last few hours. I have not seen the "no tasks are available for Sixtrack" message since around 11:30 UTC.
5) Message boards : Sixtrack Application : "no tasks are available for Sixtrack", over 1 million visible (Message 34141)
Posted 29 Jan 2018 by Profile pschoefer
Post:
I have switched four machines here yesterday and sometimes have to try for hours until they get some tasks, but then all four machines get tasks almost simultaneously. So to me it looks like there is a sufficiently large buffer of tasks that can be sent out immediately, but it isn't refilled fast enough.
6) Message boards : Number crunching : The new look bugs (Message 18841)
Posted 14 Jan 2008 by Profile pschoefer
Post:
This one seems to be related to the new look, too.

The statistic banner is cut off by the obviously fixed table width.
7) Message boards : Number crunching : wrong url ? (Message 17595)
Posted 29 Jul 2007 by Profile pschoefer
Post:
I'm a BAM!-User, so I had not to do anything at all. :)

BAM! automatically deattached and reattached with the new URL. And I even kept my old host-id. :D
8) Message boards : Number crunching : Bad thread priority (Message 17514)
Posted 23 Jul 2007 by Profile pschoefer
Post:
Why are you the only one having this problem with LHC and other projects?

Sounds like there's something weird with your system, and you're just using a bandaid.....

He's not the only one... I had the same problem but did not check the priority, because I thought it was a problem of the newest BOINC client. But after the LHC WU was completed, everything came back to the normal speed.
9) Message boards : Number crunching : Wait for it (Message 17102)
Posted 26 Jun 2007 by Profile pschoefer
Post:
Well done! Thank you very much.

Edit: I hope the third party stats sites won't crash with the lots of new hosts...
10) Message boards : Number crunching : Trojan used by dishonest BOINC cruncher (Message 16898)
Posted 15 May 2007 by Profile pschoefer
Post:
Front page update @ Predictor:
05/14/07

Due to recent attacks on the Predictor@Home forums by a small group of malicious hackers we have enabled some restrictions in the forums. We apologize for the inconvenience this may cause our volunteers. As so often is the case a few bad apples can spoil the lot and their behavior has forced us to enforce policies we would prefer not to. The accounts used by the attackers have been deleted. Despite these issues, which we will weather, we continue to value your efforts and the resources you volunteer toward the scientific objectives of the Predictor@Home project.

Thank you.


I have no words to comment upon this statement... :O

Regards
One of the "malicious hackers"...
11) Message boards : Number crunching : Versions for x86_64 platforms avaible ? (Message 16707)
Posted 14 Apr 2007 by Profile pschoefer
Post:
Sorry, double-post; I was clicking the button too hard ;)
12) Message boards : Number crunching : Versions for x86_64 platforms avaible ? (Message 16706)
Posted 14 Apr 2007 by Profile pschoefer
Post:
What's the use of a 64-bit BOINC-Client?!?
BOINC does not do any calculation, so there's no other use in optimising it than cheating.
13) Message boards : Number crunching : Trojan used by dishonest BOINC cruncher (Message 16603)
Posted 23 Mar 2007 by Profile pschoefer
Post:
@all: STOP RUNNING Predictor@Home!!! Here's what the admin over there wrote:
If someone has installed the boinc client on machines that they do not have permission to that is wrong. I have no way of knowing if this has or hasn't happened. Just because "some guy" posted something on the internet is not good enough reason to take any action against anyone.
14) Message boards : Number crunching : I will never get my stats exported from this project :( (Message 16593)
Posted 22 Mar 2007 by Profile pschoefer
Post:
But it's ok!

It's not like it'll matter anyway when the LHC comes online and creates a negatively charged metastable strangelet and reduces the earth to a clump of strange matter roughly the size of a basketball court.

CRUNCH ON!

Just stay calm. The only things we can do is waiting and stop posting thousands of threads about the stats issue.
15) Message boards : Number crunching : Send them out again! (Message 16465)
Posted 7 Mar 2007 by Profile pschoefer
Post:
I just noticed that only ONE work unit was reported in the last several hours. The remaining 138 WUs are still somewhere "out there" ...Feh! I say send them out again!! What the hey?

I suppose I'm gonna get flamed now... ah well, that's the bugger of starting a lame thread.


Did you ever hear about the reporting deadline?
Some hosts are getting very much work, so that they need their times to crunch them. And not all crunchers are reporting every day.
Moreover the 138 WUs would be "out there", too, if they were sent out again...
16) Message boards : Number crunching : can't attach my computer!!!!!! (Message 16146)
Posted 18 Jan 2007 by Profile pschoefer
Post:
hi... same problem here as i had on abcathome.com!

@admins:
see this threat for answers
http://abcathome.com/forum_thread.php?id=27


How do you try connecting? via account manager, like BAM!, or via extras-attach in the boinc manager?
17) Message boards : Number crunching : Totally Disgusting (Message 16042)
Posted 5 Jan 2007 by Profile pschoefer
Post:
Was looking through my results when I came across this result . I just don't know how people can live with themselves especially when they so blatantly try to cheat like this person. My claim was 27.92 and his digusting claim is 121.85 There is no way you can say that a claim that is more than 4x what it should be is a mistake. I bet this person also cheats at solitaire. And if you want to be disgusted even further look at that persons other results.


I think this guy uses BOINC v5.5.0, which is always used by cheaters. This version always claimes very too much credit. That's the reason why some projects now have fixed credits.

The projects could ban 5.5.0, but some hosts has problems with 5.4.11. For more information, see this thread at PrimeGrid.
18) Questions and Answers : Windows : host's credit not displayed (Message 15907)
Posted 25 Dec 2006 by Profile pschoefer
Post:
Open the file "sched_reply_lhcathome.cern.ch.xml" on your BOINC directory and see if it has "<host_total_credit>" tag there. Also check if all tags are on separate lines.


Checked it, everything correct, but it doesn't work. Host total credit is right there, but it's neither displayed in BoincManager nor in "statistics_lhcathome.cern.ch.xml" (there is the "<host_total_credit>" tag, but it has 0.000000 credit). As i said, <host_expavg_credit> is right, but <host_total_credit> doesn't seem to be sent to that host.
19) Questions and Answers : Windows : host's credit not displayed (Message 15898)
Posted 25 Dec 2006 by Profile pschoefer
Post:
There is a problem on LHC server, a new host entry is generated each time you contact server. Problem discussed here and here (there are probably other threads asking the same question, didn't look for all of them).

There is a solution explained on the forum.


This is not the problem. I've already fixed the bug, and get no new host entry. But it still doesn't work, host's total credit isn't displayed in BoincManager. The most crazy thing is, that host's recent credit is displayed
20) Questions and Answers : Windows : host's credit not displayed (Message 15884)
Posted 24 Dec 2006 by Profile pschoefer
Post:
hello,

i have two hosts computing, but only one of them has credit in BOINC-manager statistics. the other displayes 0.00 credit in manager statistics, but has 164.22 according to host stats on LHC.
Why isn't it displayed in the manager host?


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