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Number crunching :
Validator ?
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Send message Joined: 17 Jan 09 Posts: 124 Credit: 2,017,070 RAC: 4,681 |
On the Server Status page the project shows a large number of work units awaiting validation. On the server side there is no Validator Server listed ? On most BOINC projects one or more is commonly listed. How is this accomplished on CPDN ? Bill In October 1969 I took an oath to support and defend the Constitution of the United States against all enemies, foreign and domestic; There was no expiration date. |
Send message Joined: 5 Sep 04 Posts: 7629 Credit: 24,240,330 RAC: 0 |
The BOINC validator is for comparing the same data on 2 or more different computers to see if the results are the same. On this project, the researchers use statistical methods to compare results against known results from supercomputer runs of similar data, and against each other from the same input values. The end results here from the same data, but run on different computers, is not quite "the same". This difference can be small or noticeable. It's because "climate" (i.e. long term), is made up of lots of "weather (i.e. short term), and is what is called "chaotic". It doesn't take much to produce slightly different results, the main cause being an unstable computer caused by overclocking, overheating, etc. More here. And even more here. BOINC is still putting "stuff" into the validator area, but there's nothing to take it out again, so it just stays there until it's purged. If ever. Backups: Here |
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