Posts by [HWU] GHz & CO. - BOINC.Italy

1) Message boards : Number crunching : How to run the test with reference WU? (Message 370030)
Posted 17 Jul 2006 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:
You need a file called init_data.xml in the same directory.
Also, you can run the client with -standalone as an option.

Right-click the link below, and choose "save".

http://www.zadra.org/seti_enhanced/downloads/init_data.xml

HTH,
Simon.


Thanks very much Simon!
Using you init_data.xml it start to run! It works also with a minimal data into, like this: http://www.webalice.it/landipaolo/file/init_data.xml

It run OK, but it write somthing in the stderr.txt file. At start this line:

Can't set up shared mem: -1


And some second after this:

ar=0.775000 NumCfft=58347 NumGauss=           304962714 NumPulse=         58444196736 NumTriplet=       4979562790912


It's normal or not?
2) Message boards : Number crunching : How to run the test with reference WU? (Message 369247)
Posted 16 Jul 2006 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:
Hi, I'm trying to execute the reference WU with the last official SETI@home client (5.15). I've created a folder with the reference WU that is in the source zip (reference_work_unit.sah -> work_unit.sah), SETI@home 5.15 client and fftw dll (libfftw3f-3-1-1a.dll).
When I start the client, it not start to crunch, but give a stderr.txt with this error:
SETI@home error -108 Unknown error
from boinc_init_diagnostics()
File: ../main.cpp
Line: 227

Why? I'm doing something wrong or it's a bug of the new client? With the old client there was not this problem I remember...
Please let me know the right way, bye.
3) Message boards : Number crunching : optimized Enhanced 5.12 app. (Message 320251)
Posted 29 May 2006 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:
now an update

the last 15 setiathome_enhanced-5.19 wu's with optimiced app 5.12sse3

crunchtime 1600sec - 2550sec ar = 1.65xx

host = Pentium-D-820 @ 3600MHz

tomorrow i will try the optimiced 5.12sse2 with the 5.19 wu's to see if it is also slower than sse3


If you are using Crunch3r's optimized app's (version 5.12) then you should be reporting them as version 5.12 and NOT 5.19. Reporting them as being crunched by an incorrect version messes up the master data base.




The problem is that the app_info.xml from Crunch3r's site permit to use the optimized client with work for 5.19 client, and BOINC mark and report all WU with version 5.19 of the seti client.

http://setiathome.berkeley.edu/result.php?resultid=333555069
application version 5.19

Why this? Maybe a BOINC bug?
4) Message boards : Number crunching : Computation errors on Seti Enhanced (Message 314700)
Posted 24 May 2006 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:
In our team we are having many Visual C++ runtime errors! :(

http://setiathome.berkeley.edu/result.php?resultid=330425243
http://setiathome.berkeley.edu/result.php?resultid=329813048
http://setiathome.berkeley.edu/result.php?resultid=329813014
http://setiathome.berkeley.edu/result.php?resultid=329812991
http://setiathome.berkeley.edu/result.php?resultid=329812977
http://setiathome.berkeley.edu/result.php?resultid=329812881
http://setiathome.berkeley.edu/result.php?resultid=329812845
http://setiathome.berkeley.edu/result.php?resultid=329447628
http://setiathome.berkeley.edu/result.php?resultid=329447553
http://setiathome.berkeley.edu/result.php?resultid=329100832

http://setiathome.berkeley.edu/result.php?resultid=329911623
http://setiathome.berkeley.edu/result.php?resultid=329911578
http://setiathome.berkeley.edu/result.php?resultid=329911567

http://setiathome.berkeley.edu/result.php?resultid=329596232
http://setiathome.berkeley.edu/result.php?resultid=329596129
http://setiathome.berkeley.edu/result.php?resultid=329596101
http://setiathome.berkeley.edu/result.php?resultid=329596004

http://setiathome.berkeley.edu/result.php?resultid=330913383

And so on...

Hope this help to find out the problem(s).
5) Message boards : Number crunching : Seti Enhanced Credit Fair? (Message 299193)
Posted 7 May 2006 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:

Thanks Eric, I like the new method, but I have 2 other questions:

-How the total number of floating point operations it's calculated? That calculation can slow down the client?


The calculation isn't done too often so it shouldn't be significant compared to other floating point calculation. The typical increments are large. (For example when FLOPs for an FFT are added, 5*N*log2(N) is added (where N is usually 128K). This an approximation for FLOPs used in calculating an FFT.


Ok, very well :)


-What can happen with optimized client? If they are not only recompiled but they have code optimization (like crunch3r's client), the claimed credits can change?


That's really up to the optimizer. If they reduce the number of FLOPs they can also reduce the number added to the FLOP counter if they desire. I would guess that most will leave the counter as is.

Eric


I hope too :P

Thanks for the info Erik!
6) Message boards : Number crunching : Seti Enhanced Credit Fair? (Message 298171)
Posted 7 May 2006 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:

How is the equation used to calcolate the claimed credit with the new client? It's based only on the number of FFTs performed?


The application keeps a running total of the number of floating point operations performed. The application reports credit for 3.35 times this number of floating point operations. (3.35 was chosen to make the median credits/hour to equal what the non-enhanced application was reporting).

Eric


Thanks Eric, I like the new method, but I have 2 other questions:

-How the total number of floating point operations it's calculated? That calculation can slow down the client?

-What can happen with optimized client? If they are not only recompiled but they have code optimization (like crunch3r's client), the claimed credits can change?
7) Message boards : Number crunching : Seti Enhanced Credit Fair? (Message 298166)
Posted 7 May 2006 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:
How is the equation used to calcolate the claimed credit with the new client? It's based only on the number of FFTs performed?


I don't know the formula or ratio—they've done a fair bit of tinkering with it to make it come out with similar earning rates, on average, to other projects—but yes.

See this message from Eric Korpela, posted a few months back in the Test Project forum, showing the kind of analysis that's been done to develop the formula.


That link it's very interesting!

If the credits for the same WU are equal for all hosts, why in this case the pending credits fot one host are less?
wuid=76676710

That host is using an old BOINC client, v4.45. Clients earlier than v5.2.6 (? or so) can only claim credit according to time-&-benchmarks, ignoring an app's reported Flop count; there's been talk of cutting them off at some point in the future, when Enhanced has become 'the only game in town'.


Ok, thanks for the explanation !
8) Message boards : Number crunching : Seti Enhanced Credit Fair? (Message 297776)
Posted 6 May 2006 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:
... The CPU time varies by more than 50% in completion of the units, but the claimed credit is exactly the same at 19.05. How can this be right if the metrics come from the work?

...hostid=1958599


All those results are showing the exact same number of FFTs performed, so identical credit claims, regardless of the time taken, are to be expected. Note that in each case the other hosts in the quorum also report the same amount of crunching. Why your CPU-times (or the measurements thereof) are so discrepant I have no idea, but the amount of work done on each WU was indeed the same.


How is the equation used to calcolate the claimed credit with the new client? It's based only on the number of FFTs performed?

If the credits for the same WU are equal for all hosts, why in this case the pending credits fot one host are less?
http://setiathome.berkeley.edu/workunit.php?wuid=76676710
9) Message boards : Number crunching : Nice addition to the ststus page (Message 219228)
Posted 21 Dec 2005 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:
I have another request: in this moment I cant' upload/download, maybe for a DNS change in the data server.

ping setiboincdata.ssl.berkeley.edu

Esecuzione di Ping setiboincdata.ssl.berkeley.edu [66.28.250.125] con 32 byte di
 dati:

Richiesta scaduta.
Richiesta scaduta.
Richiesta scaduta.
Richiesta scaduta.

Statistiche Ping per 66.28.250.125:
    Pacchetti: Trasmessi = 4, Ricevuti = 0, Persi = 4 (100% lost)



It's possible to have the list of IP of the servers in the status page?
10) Message boards : Number crunching : Seti Classic Credit? (Message 204410)
Posted 6 Dec 2005 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:
Once Classic has closed down, there will be a last update. Currently your account page shows "completed X Seti Classic work units as of March 15 2005." That'll be updated to something like "completed Y Seti Classic work units as of December 15 2005."


I think there will be only "SETI@home classic workunits X" because there will not be any future update :P

Since Seti/BOINC calculates credit differently than Classic did, there's no direct workunit-to-credits conversion, but your work units for Classic will be recorded.


True, but you can do an approximate calculation to know how may credits would be the classic workunit, using the assigned medium value for every wu on BOINC (24 - 26).

Bye ^_^
11) Message boards : Number crunching : Berkeley "officials", help! http://boinc.setiatwork.com IP blocking (Message 191956)
Posted 22 Nov 2005 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:
If you can get there through a proxy, then Berkeley isn't blocking his IP address.


That is not true! When you connect to a server using a proxy, the server see the IP of the proxy, not your IP!


...
12) Message boards : Number crunching : Berkeley "officials", help! http://boinc.setiatwork.com IP blocking (Message 191477)
Posted 21 Nov 2005 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:
If you can get there through a proxy, then Berkeley isn't blocking his IP address. In order to help you, we need more data. You mention that you can't ping, have you tried a tracert to see where you fail? As others have mentioned, search the message boards for the proxy threads and/or search the WIKI for steps to isolate your problems.


Before the ip blocking of setiatwork ALL go well! After no! Using a proxy is not the same thant go without. I can write to my friend to do a tracert and post here.

But can we say if that ip is in the blocked list? We are not asking the moon....:|
13) Message boards : Number crunching : Berkeley "officials", help! http://boinc.setiatwork.com IP blocking (Message 191329)
Posted 21 Nov 2005 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:
UP :/

Hi!

Have you tried using a proxy?

If you dig through the old posts you should find some addresses.
They were posted during the cogent debacle.


Regards Hans


Hi,
yes, using a proxy he can access the website and crunch, but it's not very fast and not always works well.

It's possible to know if it's IP is blocked by berkeley?
14) Message boards : Number crunching : Berkeley "officials", help! http://boinc.setiatwork.com IP blocking (Message 191244)
Posted 21 Nov 2005 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:
UP :/
15) Message boards : Number crunching : Berkeley "officials", help! http://boinc.setiatwork.com IP blocking (Message 190679)
Posted 19 Nov 2005 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:

But now the problem is, like Steve have writed, it's that one member can't run BOINC because its IP is blocked! I hope that Matt read here and unblock that IP.

Bye,
GHz

Are you sure that Berkeley is blocking the IP?

Have you tried going through a proxy?

What other diagnostics have you tried?

Is there a really good reason that this machine can't be moved to a new IP?


We are not shure 100%, but all is ok in the newtork and only seti is not aviable.

Ping to setiathome.berkeley.edu fail!
Ping to setiboinc.ssl.berkeley.edu it's OK!
Ping to setiboincdata.ssl.berkeley.edu it's OK!

I don't know why he have some problems to contact the scheduler with boinc client, but the webserver is not aviable.

There are two "players" here.

The thread was originally about 24.75.104.100.

GHz and Co. is interested in 217.133.4.201.

Matt answered the original question, because 24.75.104.100 was blocked for good reason -- it was hammering the SETI servers.

Blocking an IP is going to be a pretty dramatic step, they're only going to do it under extreme circumstances.

Chances are good that the other problem is elsewhere.



We want to know if his IP it's in the list of blocked IP (and than unblock it), if not we will investigate elsewhere.

Please Matt...give us some information!

Bye,
GHz
16) Message boards : Number crunching : Berkeley "officials", help! http://boinc.setiatwork.com IP blocking (Message 189775)
Posted 17 Nov 2005 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:
adding junk to this thread doesn't help either, just to get it to the "top" of the list, which is dependant on the forum prefs of each user anyway


Uhmmm true, I have not think about this...anyway I need to solve this problem :|

also pending credit shouldn't be polled that often, it's not going to change that quickly, other puters have got to process and return the work, then the validator had gotta do it's stuff, THEN you might get credit

not much is gonna change in 96 minutes ((24hrs*(60mins/hour)=)1440 minutes per day/(10+20/2=) average of 15 times the site is polled each day)

the reason pending credit was disabled on the site was because it put too much load on the database, and by requesting a php generated page (which relies on the DB) you're just adding to that excessive load again


I know this, but who polled many time the page to know the pending credits? Not our script! 15/20 times but for different users only of our team, than no to much load on the webserver. Read the post above please! There are other scripts that are used from many members and are working!

But now the problem is, like Steve have writed, it's that one member can't run BOINC because its IP is blocked! I hope that Matt read here and unblock that IP.

Bye,
GHz
17) Message boards : Number crunching : Berkeley "officials", help! http://boinc.setiatwork.com IP blocking (Message 188673)
Posted 14 Nov 2005 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:
Last up to this topic....next time I will start a nwe one :|
18) Message boards : Number crunching : Berkeley "officials", help! http://boinc.setiatwork.com IP blocking (Message 187913)
Posted 11 Nov 2005 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:
:(
19) Message boards : Number crunching : Berkeley "officials", help! http://boinc.setiatwork.com IP blocking (Message 187522)
Posted 10 Nov 2005 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:
Matt are you alive? :|
20) Message boards : Number crunching : Berkeley "officials", help! http://boinc.setiatwork.com IP blocking (Message 187231)
Posted 9 Nov 2005 by Profile [HWU] GHz & CO. - BOINC.Italy
Post:
UP!


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