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186 Work Units going back almost a month, not yet validated
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polliard Send message Joined: 21 Mar 04 Posts: 2 Credit: 427,519 RAC: 0 |
Is there something I need to do? The validation seems to be almost a month behind. Not sure what Im not doing right. |
Jord Send message Joined: 9 Jun 99 Posts: 15184 Credit: 4,362,181 RAC: 3 |
On most projects, at least two tasks are sent out to different hosts. Those hosts will usually have different CPU makes (in some cases even GPUs) and different cache lengths (the amount of work one wants to have in store to cover for project outages). The project doesn't take all data back and puts it in a database, it'll want to verify that the data you sent back isn't just a chapter of your favorite sci-fi book. And thus, they validate it against another computer. Only when both results from both computers match each-other, is a copy put in the science database, credits granted etc. If they do not match, a third copy of this task is sent out and done by another computer. When that one sends its result back, that gets checked against the two that were available before. The result matching the third one gets credit, the one not matching does not get credit. Since deadlines differ per project, it can take quite a while for tasks to get credit, especially if it has to wait for someone else's deadline to pass before it's sent out again and then returned. We're talking months here, in some cases even half a year. |
polliard Send message Joined: 21 Mar 04 Posts: 2 Credit: 427,519 RAC: 0 |
Thanks for the info, I was just used to very rapid (a week or two at most) credit assignment. Thanks Thomas |
John McLeod VII Send message Joined: 15 Jul 99 Posts: 24806 Credit: 790,712 RAC: 0 |
Thanks for the info, I was just used to very rapid (a week or two at most) credit assignment. Sometimes you get lucky, sometimes you don't. There have been cases of a task that waits a year for validation. Most of the time it is less than a fortnight. About half the tasks are the second returned for a WU and are valid, and are validated instantly. Note that about is because of late work, errors, etc. BOINC WIKI |
Hoogendoorn Send message Joined: 22 May 99 Posts: 1 Credit: 720,792 RAC: 0 |
Since about 12 May I have been downloading successfully. But uploading is not working. Two files hanging fire. 09mr07ae.18910.17659.11.10.248_2_0 and 21mr07ah.8150.18886.11.10.57_0_0 Solution? Or just wait for it to be resolved. RAY |
BilBg Send message Joined: 27 May 07 Posts: 3720 Credit: 9,385,827 RAC: 0 |
. Congratulations for your first post in 11 years Read: Uploads failing?? http://setiathome.berkeley.edu/forum_thread.php?id=59985 Panic Mode On Server problems http://setiathome.berkeley.edu/forum_thread.php?id=59938&nowrap=true#996076 . Â - ALF - "Find out what you don't do well ..... then don't do it!" :) Â |
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