Posts by Xavier Wallece

1) Message boards : Number crunching : new work eta? (Message 11428) Posted 21 Nov 2005 by Xavier Wallece Post: Well I noticed that if a Wu is not downloaded correctly (I hade that problem due to the fact that my ISP upgraded my connection) boinc tries a few times, after a while it says it cant and tries to download another and another. In the end I ended up with 10 Wu's that I could not crunch and they where no longer on my computer but where waiting for confirmation on the website. This Saturday the deadline ended and a few of the wu's where resend to other participants. What I find odd is that the server does not check if a computer can handle all the wu's that have been send to it (I hade 10*32.00 credits of work assigned to me). A small feedback of the client telling the server it does not have any work would be nice so the server knows that the send wu's are never going to be completed.
2) Message boards : Number crunching : Host corruption (Message 10950) Posted 25 Oct 2005 by Xavier Wallece Post: Hosts 63186 55726 58283 don't look good either
3) Message boards : Number crunching : only 10 k WU's left (Message 9118) Posted 2 Aug 2005 by Xavier Wallece Post: The point adrianxw is trying to make is that if there are a lot no wu's left it is better to let other people help crunching instead of letting one person do all the work. The results get posted back quicker so LHC can validate it. If one person does all the work we could be waiting for two weeks and then get u's tat have not been crunched and the rest still needs to crunch then. Now that would really be a pitty. However if people got for the highest available credits then by all means put your download/ get results thing to 2 weeks then you are sure you 'll be crunching for awhile (matter of speach of course) Luckily it seems that LHC@home has gotten the production cycles up and running so I don't expect the be without wu's for the next coming month (and yes my download is at 0.1 days) that's my 2 cents. No offence meant Sysfried :) Chao, Xav
4) Message boards : Number crunching : AMD Cool&Quiet & win2k not using all cpu power (Message 8369) Posted 10 Jul 2005 by Xavier Wallece Post: :) truly amazing I think I need to switch to windows xp (which I am not going to do because I don't like all the limitations build in for the general public) And Travis DJ probebly needs to switch to windows 2000 to make sure his computer does not make too much noise when running boinc. It's a strange world we live in :)
5) Message boards : Number crunching : AMD Cool&Quiet & win2k not using all cpu power (Message 8365) Posted 10 Jul 2005 by Xavier Wallece Post: I could put it on full speed all the time however since LHC does not always have sufficient work units my computer is standing still and only generating heat. I have not yet found another project to my liking which I'd like to spend my cpu cycles on. Sysfied I noticed that you use windows xp, it could be that "they" have changed something to make sure it does run on full speed. This could be limited to a windows 2000 problem then. I think that could be it Heffed.
6) Message boards : Number crunching : AMD Cool&Quiet & win2k not using all cpu power (Message 8361) Posted 9 Jul 2005 by Xavier Wallece Post: Asus gives you a tool to check your cpu speed It's called cool&quite. It show at what speed you cpu is running. AMD has introduced cool&quite technology to reduce power output when it is not nessesery. An added bonus is that your cpu runs cooler (20 degrees celcius in my case). If you start a game like quake the cpu goes from 1 ghz. to the max 2.2 ghz in my case. I noticed that if sixtrack runs it is at the low priority and therefor does not use the full cpu power. However if I change the priority to below normal it start to uses the full 2.2 ghz. This could be a windows problem, cool&quiet problem (feature) or a bug in boinc/sixtrack
7) Message boards : Number crunching : AMD Cool&Quiet & win2k not using all cpu power (Message 8356) Posted 8 Jul 2005 by Xavier Wallece Post: On a Win 2k computer with boinc 4.43 the sixtrack program only uses 1 ghz. of cpu power. I have 2.2 ghz available. I noticed that if I increase the priority of the sixtrack driver from low to below normal it does use 2.2 ghz. I was wondering if more users have this problem. This probably makes it clear to me why my computer seems slower than other computers. It could be that I should post this at the boinc site but i'm not entirely sure Regards Xavier
8) Message boards : Number crunching : Linux 64-bit (Message 4492) Posted 27 Oct 2004 by Xavier Wallece Post: I would not mind doing some 64 bit benchmarks / test units to see if there is a large difference in the results. If however the results are more accurate it would be nice to know about it in advance so people that have 64 bit capable machines can give more accurate readings. It would not be nice if an atom would hit the wall because of a miss calculation by a 32 bit machine. If 64 bit would be more accurate it can also be used to validate 32 bit results and give a higher change of success.
9) Message boards : Number crunching : Linux 64-bit (Message 4414) Posted 26 Oct 2004 by Xavier Wallece Post: I was wondering if it is possible to get a 64-bit client of the sixtrack software under linux. I already figured out that it is possible to compile boinc to 64-bit but if the client is not 64-bit it will not give an performance increase. Any comments on this? p.s. yes I know that 64-bit it self does not give an increase in performance but that the architectural changes will (16 registers instead of 8 and some other modifications) and it might even increase the accuracy of floating points numbers although I�m not sure about that.

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