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Posts by GreenBandit

Posts by GreenBandit

1) Questions and Answers : Windows : Why do I have "Pending credit: 1,229,136.87"? (Message 51658)
Posted 20 Mar 2015 by Profile GreenBandit
Post:
CPDN does not use "Pending Credit", so I assume that any figure is ignored.

Agreed. All the WUs on my pending credit page that have finished are also in my Results page.

Sorted:-)
2) Questions and Answers : Windows : Why do I have "Pending credit: 1,229,136.87"? (Message 51655)
Posted 19 Mar 2015 by Profile GreenBandit
Post:
Why do I have "Pending credit: 1,229,136.87"?
This is over 1/3rd of the total credit that I have. Is this valid credit that should have been granted and if so can it be claimed?
3) Questions and Answers : Windows : Hadcm3n3_um_6.07 C++ Runtime error (Message 42982)
Posted 24 Sep 2011 by Profile GreenBandit
Post:
For a few days now I now get two C++ runtime errors everytime I switch my PC on and run BOINC.
The error windows look like this:


The taskbar says it refers to program
Hadcm3n3_um_6.07_windows_x86.exe

Example W/U error
http://climateapps2.oerc.ox.ac.uk/cpdnboinc/result.php?resultid=13105479

PC info
http://climateapps2.oerc.ox.ac.uk/cpdnboinc/show_host_detail.php?hostid=835467


Can anyone help?
4) Questions and Answers : Windows : Moving away to another computer (Message 28126)
Posted 26 Apr 2007 by Profile GreenBandit
Post:
I have to do the same thing this week i.e. move from one Win2k PC to another. Just to be sure I understand, are you saying:-
1 - Uninstall BOINC on the PC to be retired.
2 - Copy the whole BOINC folder to the new PC.
3 - Install BOINC on the new PC.
4 - Enable R/W permissions for BOINC & its sub-directoriess.

Have I got his right ?

BOINC is already installed on the new PC, do I have to uninstall it before step 3?
5) Questions and Answers : Preferences : Unable to merge computers (Message 19339)
Posted 15 Jan 2006 by Profile GreenBandit
Post:
I had a computer crash while running WinME, so I decided to convert it to a Win2K machine. Now I find that I am unable to merge the new and old computers. I presume that this is because the computers have a different description OS relating to the OS (I have since also upgraded the CPU).
Message 16870 comments on this, but is there yet a way around this ?
6) Message boards : Number crunching : Windows vs Linux Benchmarks (Message 18704)
Posted 24 Dec 2005 by Profile GreenBandit
Post:
[quote
I\'m going to manually time how many steps occur over a few minutes for each [/quote]

Benchmarking of two Sulphur WUs, both of which are at 1.xx% completed (with graphics turned off as only the Win2K machine has got OpenGL nVidia drivers installed):-
Under Win2k, 74 TS in 7 min, indicated 5.84 s/TS
Under Kubuntu, 59 TS in 7 min, indicated 6.65 s/TS

So it would seem that (on these 2 particular WUs):-
1 - BOINC has a lot of \"time prediction learning\" yet to do before it gets its estimates anywhere near correct.
2 - Win2K is faster than Linux by between 12% and 25% depending on whether I believe the TS over 7 minutes, or the displayed s/TS

Therefore regarding my \"Win2K or Kubuntu decision\", I think I\'m going to have to stick with Win2K if I want the best speed :-(

.....unless of course someone tells me that I have missed some important factor, or some tweak, or some optimised client for Linux.


(Les / Paul, many thanks for your help)
7) Message boards : Number crunching : Windows vs Linux Benchmarks (Message 18703)
Posted 24 Dec 2005 by Profile GreenBandit
Post:

The best way to get a good time estimate, is to DIY. Use the cpu time, and look at the number of years processed on the graphics, then do some maths.



Thanks to Les & Paul for help so far. I\'m going to manually time how many steps occur over a few minutes for each OS - This should help me make the ultimate Win2k of Kubuntu decision. I\'ll post my results when I\'ve done them.
8) Message boards : Number crunching : Windows vs Linux Benchmarks (Message 18697)
Posted 24 Dec 2005 by Profile GreenBandit
Post:
But if the pure CPU benchmarks are not relevant to CPDN, why do I also have big discrepancies in the \"to completion\" time, namely approx 2700hrs under Kubuntu but only 1492hrs under Win2K ?

Are these \"to completion\" times going to be \"not a good predictor of climateprediction performance\" or should I believe them ?

(The reason for all this is to work out if I can escape from using Windows without getting a massive CPDN performance hit in terms of WUs completed and gained credits)
9) Questions and Answers : Unix/Linux : CPU Benhmarks for RH Linux vs XP on Identical Machine Dual Boot (Message 18684)
Posted 24 Dec 2005 by Profile GreenBandit
Post:
On Intel platforms, Linux has always been faster for the same PC, at least until the sulphur 4.22 release a few days ago. The benchmarks have always been faster in Windows. BOINC benchmarks do not equate in any way to CPDN performance.

I have just benchmarked a dual-boot Athlon 2000+ with 512MB RAM, both are installed to different partitions on the same HDD. Win2k benchmarks are 1396 Whetstones & 2347 Dhrystones, but Kubuntu 5.10 gives me 767 Whetstones & 1330 Dhrystones. The predicted completion times are about 1492 hours for Win2k & about 2700 hours for Kubuntu. So it would seem that the benchmarks in my case DO seem to equate to predicted performance, or is there some basis for saying that benchmarks don\'t equate to CPDN performance ?
I guess I\'ll get through more WUs & get more credits if I go back to Win2k. Shame really.
10) Message boards : Number crunching : Windows vs Linux Benchmarks (Message 18683)
Posted 24 Dec 2005 by Profile GreenBandit
Post:
I have a dual boot Athlon2000+ with 512MB RAM. When I benchmark under Win2K i get 1396 Whetstones & 2347 Dhrystones, but under Kubuntu 5.10 I get 767 Whetstones & 1330 Dhrystones. Does anyone know if I have some sort of Linux installation/slowdown problem, or is this speed difference to be expected.




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