the speed is too slow
11 Nov 2009 12:48:41 UTC
Topic 194621
(moderation:
Hi! I'm using BOINC to calculate the result of Einstein@home, but the speed is so slow that I can hardly accept it. At first, the remaining time is over eight hours, and it has become longer and longer. My CPU is 1.83GHz and my RAM is 704MB. Is the level of my computer too low to complete the task? Could someone tell me what to do? Thanks a lot!
the speed is too slow
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Eight hours is about the time taken for a hierarchical search unit on my Opteron 1210 running Linux at 1.8 GHz.Maybe you should try to increase your RAM. I have 5 GB and Linux-pae sees all of it.
Tullio
My 2.5 GHz P4 with 512 MB
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My 2.5 GHz P4 with 512 MB needs between 11 and 15 hours for a S5R6 task, a little more for an ABP1 one; and I don't think it depends on memory, since their footprint is only about 80 MB.
The runtime estimates will get better with more tasks successfully done.
Gruß,
Gundolf
Computer sind nicht alles im Leben. (Kleiner Scherz)
RE: My CPU is 1.83GHz and
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Welcome to the E@H project!
Your CPU is an Athlon XP 2500+ - Barton core I imagine. Quite a good CPU in its day but rather slow by comparison to modern processors these days. I'm actually still running a couple of these myself but overclocked to about 2.2GHz. Mine complete tasks in about 10 - 14 hours or so. If yours is not overclocked, you could easily be seeing times in the 14 - 18 hour range.
When you first join a project, BOINC makes an estimate of how long a task might take. For your type of CPU, the BOINC estimate for EAH tasks is always lower than it will actually take so it is quite normal to see the initial estimate of 8 hours keep blowing out. Once the first task is finished, BOINC will upgrade its estimate for all subsequent tasks. BOINC is good at learning from experience.
Your machine is quite capable of completing tasks well within the deadline so there is no problem continuing to crunch E@H if you wish to.
Cheers,
Gary.
ABP1 takes about 10 hours on
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ABP1 takes about 10 hours on my Linux box.
Thanks a lot! Well, I have to
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Thanks a lot!
Well, I have to say, I'm a Chinese teenager, and it's hard for me to read you words. See? My expressions are all easy, and may be a bit strange. But from your words, I know the speed is not a problem. My computer is not so good as the latest ones, however, it's good enough to complete the tasks. I'll try to run it again. At the same time, I know one thing: everything is not so easy, including helping Einstein with my PC!
Thanks!
PS: Do you usually write down your name after your messages? I wonder whether I should do it, too. Thanks!
RE: Well, I have to say,
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If anything in our answers is unclear, ask again.
If you want to read about BOINC on your own, try the BOINC FAQ Service or the BOINC Wiki.
I do, including a short salutation in my native language. Many others don't, so it's up to you if you want to append your name.
Gruß,
Gundolf
Computer sind nicht alles im Leben. (Kleiner Scherz)
RE: Thanks a lot! You
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You are most welcome!
I'm sorry, but I didn't realise ... Your written English is exceptionally good and you are to be wholly congratulated on your language skills at such a young age. Your computer is fine and I'm sure that the project staff will value your contribution.
Whatever you wish to do is fine.
Cheers,
Gary.
...and if you think your PC
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...and if you think your PC is slow, have a look at one of my Pentium IIIs :-)
http://einsteinathome.org/host/1025096/tasks
CU
Bikeman
Thank you, everybody! The
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Thank you, everybody! The problem has been solved successfully. The computer is running while I'm writting here now. From your words, I knew my speed is not too slow. It has runned for three hours and a half and has finished more than twenty-six percent of the task. It is not bad, is it? I think it's able to upload the result on time. Thanks!
PS: Well, in our Chinese culture, we should be modest, polite and kind. For example, in our English class, teachers told us that when you are praised, you may say 'Thank you.' But in my country, people usually say 'No no no, I'm far from what you say.' It's a way to show modesty. Is it strange? He He!
I'm really happy to hear from you and talk with you. You've taught me much, not only about how to solve the problem itself. Really Thanks a lot!
FF