no credit granted, though WU ended with "success"
23 May 2007 19:38:11 UTC
Topic 192777
(moderation:
Hello,
for the first time as long as I am part of E@H there was no credit granted though the result in the WU (33745679) for my box says success. Same box as usual and no new software installed. Could anybody help me by explaining that, so that I can avoid the same outcome in the future?
Thanks
no credit granted, though WU ended with "success"
)
Someone might be able to explain this better than me. From what I understand, there is currently a bug where sometimes units crunched by different OSes don't validate with each other.
You crunched the unit with Windows and your partner crunched it with Linux. Because of this bug, the unit was sent out again. Since the new partner was Linux, the two Linux units validated with each other, and you got 0.
From what I understand this is rare.
Thank you, I am relieved that
)
Thank you, I am relieved that nothing in my setup broke.
Though it's too bad about the lost crunching time for the project.
Why not just enable
)
Why not just enable Homogenous Redundancy on the server?
Reno, NV Team: SETI.USA
HR seems to have a flaw, from
)
HR seems to have a flaw, from my observations, it seems
that the scheduler doesn't give out the next WU that would
be suitable for the requested platform, it rather seems
to wait for a specific platform, when an already "tagged"
result is on top of the stack.
I might be wrong though, it's just an idea I got when I
watched the behaviour of some project schedulers, not
based on examining the code.
Without HR, the chance of tracking down not fully portable
code snippets is higher too. The more platforms you have
with compareable results, the better your code quality can
be.
HR is nothing but a dirty workaround for not so good code.
FWIW, Docking@Home uses HR
)
FWIW, Docking@Home uses HR quite successfully.
Reno, NV Team: SETI.USA
RE: FWIW, Docking@Home uses
)
I believe Docking did a lot of modification to the backend to get it to work, and they are still working on fine tuning it. IIRC, they're HR is pretty fine grained. Don't know if they would need the same here.
I'm not sure how much of their HR code made it back into SVN.
Kathryn :o)
Einstein@Home Moderator
I just got two results with
)
I just got two results with no credit granted. As MattDavis said, the other two results of the same wu have been crunched by linux while mine by windows.
http://einsteinathome.org/workunit/33772527
http://einsteinathome.org/workunit/33748310
Welcome To Team China!
RE: Someone might be able
)
Not so rare when your data file is shared with a couple of MACs and a Linux system. I've had 3 out of 5 WUs go belly up because of this bug. I have another pending that will probably also be odd-man out.
When you spend 165 hrs crunching 5 WUs and only get credit for two of them, it SUCKs big time!!!!
[edit typo]
Seti Classic Final Total: 11446 WU.