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发表于 2007-8-11 16:18:59
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新版本优化向前兼容，欢迎大家使用：）
转一篇优化网站上Simon老大的帖子：
Multibeam has arrived - please upgrade!
« on: Yesterday at 06:57:12 PM »
Hi Folks,
over at the main SETI@Home project, Multibeam apps have been released.
This marks a major turning point for the project, as we're switching from data gathered on the (now no longer operative) linefeed receiver at Arecibo to the newer ALFA Multibeam receiver (that can record 14 signals at the same time the old did one).
新程序发布是项目的一大进展，现在Arecibo采集信号的速度是原来的14倍。
The updated apps also bring another change: the default credit multiplier was adjusted. It used to be 3.35, now it's 2.85. The reasoning behind this adjustment is the following - since a lot of optimized code from the lunatics apps was incorporated into the new MB stock applications, the processing speed improved significantly. Earlier, Eric Korpela wanted to increase the credit multiplier upon switching to MB; after the new code was added, the apps were so much quicker that instead it had to be reduced - to stay at approximately the same credits/hr as the old one.
之前优化程序的大量代码已经被官方程序使用！因为新程序效率太好，官方再次修正了一个任务包分数计算的参数，目的是保持大家的得分速度和原来差不多。
This has created a bit of resentment among the power crunchers; after all, their bonus over the average user just got gutted. In contrast, all average users now process significantly more WUs, though they will continue to receive similar credit/time as before.
虽然大家的得分速度和原来差不多，但大家单位时间内处理的数据实际上要比原来多多了。另外，由于官方程序已经有相当程度的优化，现在新优化程序的效率和官方程序间差距应该也就不大了。
It all balances out in the end; at least, it should, IF:
Most people do update their optimized apps if they use any
There does not remain a "hard core" of crunchers refusing to update and skewing credit claims for everyone
Meaning: if you don't update your science app, you will overclaim compared to the average cruncher. Anyone care to remember what ensued the last time this happened? "Big Bada-Boom", as the fifth element would say...
So what happens if you say "ah well, screw it, it's not as if they could do anything about it"?
Well, wrong, they can and will. Namely, they (the S@H project) will reduce the credit multiplier even more to balance out the overclaimers, punishing EVERYONE for mistakes a few made. Next step will probably be, all KWSN apps up to 2.2 will be officially unwelcome at the main project.
希望大家不要因为分数上的变化拒绝升级。
I would ask you to consider this and make the right decision - another point to mention is that our optimization community will be much less motivated if people turn out to value credits more than fairness and scientific value. In fact, some of them would probably not continue to work on further optimizations.
如果大家更关心分数而不是项目的公平性及科学价值，那我们也将不再有动力去进行程序的优化。
So, I'd like to request that everyone update their science apps ASAP, please (I'm uploading them as this is posted).
Regards,
Simon. |
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发表于 2007-8-11 15:21:45
发表于 2007-8-11 17:05:48
发表于 2007-8-11 21:06:20
