S5R4 的一些消息

[url]http://einstein.phys.uwm.edu/forum_thread.php?id=6758&nowrap=true#85765[/url]

Posted 22 Jul 2008 16:30:37 UTC

This might be subject to change, but some preliminary info to end speculations here:

大概说一下，可能还会有变化。

Most likely S5R4 will start with Applications very similar to the last Beta Apps, i.e. SSE2 App for MacOS Intel, switching x87/SSE App for Windows, switching G3/AltiVec App for MacOS PPC (which will remain the slowest one in comparison), and an App that switches SSE2/SSE/x87 Apps for Linux.

S5R4的计算程序应该会和之前阶段的beta测试程序（优化程序）相似，比如MacOS Intel平台的SSE2版、Windows平台的X87/SSE版，MacOS PPC平台的G3/AltiVec版（可能会是相对比较慢的一个），还有Linux平台的SSE2/SSE/x87版。

The next improvements targeted for the Apps are getting the Windows App compiled with MinGW, so gcc-specific improvements could be ported to Windows (SSE2 optimizations), and, more general, get the "weighted" Hough code up to the speed of the currently used "unweighted". As the main improvement there is the prefetching, I'd suspect systems with a faster memory interface (AMD) to be a little faster in that part at the beginning.

Windows平台的计算程序会改用MinGW来编译，这样一些gcc相关的改进将能够移植至Windows平台（SSE2优化）。由于预读取方面的改进，刚开始时可能拥有更快的内存接口的AMD系统会表现更好些。

However before that we have to get S5R4 running at all, and an almost equally high priority is a major server code upgrade. I doubt that any major work on the App code will be done before that.

在所有这些之前，首先还得把S5R4给跑起来，服务端的代码升级也要优先处理。这些工作完成后才会去处理计算程序代码。

BM

哦～
等待win平台下的SSE2程序～

S5R3的任务单元还剩1%不到，6万多个（就项目来说是三天不到的计算量），这两天服务器时不时地会无法访问，可能一直在进行调整，大家注意屯粮：）

我估计我正在算的是我所能接收到的最后一个S5R3的任务包……

[url=http://einstein.phys.uwm.edu/forum_thread.php?id=6758&nowrap=true#85943]http://einstein.phys.uwm.edu/forum_thread.php?id=6758&nowrap=true#85943[/url]

30 Jul 2008 7:37:33 UTC

The 32Bit system the old server is running on is currently at its limits. One reason to upgrade software and hardware [Edit]This will also include an update of the DB structure for the new server-side software[/Edit].

旧服务器的32位系统已经到了运行极限，因此需要对软硬件进行升级（包括对服务端软件的数据库结构）。

It currently looks like the server will be down for the whole weekend to perform these, and we'll hopefully start the new week and month with an all-new server and a new run.

看起来服务器可能 [b][size=3]整个周末 [/size][/b]都要停机，希望到下星期开始的时候，项目的新阶段已经能在全新的服务器上开始运行！

BM

回复 #5 Youth 的帖子

服务器要停机呵
等待新阶段
PS：4楼预测错误，我又下了一个S5R3的包……

呵呵，4楼应该是说他自己吧：）

回复 #7 Youth 的帖子

嗯嗯，6楼和4楼是同一人诶
我以为我下不到S5R3的任务包了
结果还是下到了，呵呵
看来运气还不错……

最近的 S5R3 任务包计算量稍微增大了。

我还以为是你估计只能来得及算完那一个。。。[em03]

[quote]原帖由 [i]秋风树林[/i] 于 2008-7-30 19:41 发表 [url=http://www.equn.com/forum/redirect.php?goto=findpost&pid=253551&ptid=18938][img]http://www.equn.com/forum/images/common/back.gif[/img][/url]
嗯嗯，6楼和4楼是同一人诶
我以为我下不到S5R3的任务包了
结果还是下到了，呵呵
看来运气还不错…… [/quote]

回复 #10 Youth 的帖子

呵呵，我说话很容易让人造成误解诶
这是从N年在多个论坛所得出的结论......[em03]
PS：现在准备全面封锁所有项目，禁止下载新任务
因为刚刚加了QMC，吓了我一跳……

我说怎么连接不上去
那谢谢~

[url]http://einstein.phys.uwm.edu/forum_thread.php?id=6758&nowrap=true#85967[/url]

30 Jul 2008 11:55:06 UTC

We've started to 'drain' the S5R3b Workunit generator (WUG), i.e. told it to generate all remaining S5R3 Workunits and put them into the database. We hope that this will shift a bit of load from the main server to the database server. In a few hours you'll notice that the WUG doesn't run anymore, which is nothing to worry about.

Also we nudged some S5R2 and S5R3a workunits that got stuck, so we can hope to have these runs finished before Friday.

BM

已经生成了所有S5R3b的任务单元，希望可能将主服务器的部分压力转移到数据库服务器上，也希望能在周五前把积压的S5R2和S5R3a任务单元都处理掉。

//

我这边今早一直连不上服务器了，还好之前多下载了些。

Reply #13 Youth's post

我这边可以连接.
刚才在Ubuntu下接到一个新任务.
S5R3b的

我这现在是完成的任务无法上传

[url]http://einstein.phys.uwm.edu/forum_thread.php?id=6758&nowrap=true#85989[/url]

[quote]Don't get me wrong, I didn't mean to say credits will definitely be lower, but that you should not expect them to remain the same, just because the apps are more or less the same. We will see next week. My personal view is that with the power/beta apps (and new S5R4 stock apps) E@H is now a bit over the average credits rate. [/quote]

Actually in in the last weeks Einstein@home has been awarding 25% more credit on average than SETI@home. And the only reason for no credit adjustment being done within the run was just that it turned out to be too late for that (i.e. too close to the end of the run) anyway. We are currently making the final adjustments, but you should expect to get in the order of 20-25% less credit per CPU hour than in S5R3, especially if you ran PowerApps.

因为s5R4上来就是使用的优化程序，项目方会适当调低任务单元的得分率（大概20-25%），以和其它项目保持基本一致。

BM

回复 #16 Youth 的帖子

也就是说s5R4没有优化程序了？

现在还不完全确定，但基本上是官方程序本身就是优化好的，会自动根据处理器的类型来使用相应的计算程序，程序本身和S5R3差不多，变动的主要是程序的输入输出之类的。

降低得分率……
那如果S5R4出优化，就应该是SSE2版了～

嗯，基于S5R3阶段Linux版本的SSE2优化。

为什么要降低得分效率呢?

[quote]原帖由 [i]Youth[/i] 于 2008-8-1 10:39 发表 [url=http://www.equn.com/forum/redirect.php?goto=findpost&pid=253740&ptid=18938][img]http://www.equn.com/forum/images/common/back.gif[/img][/url]
[url]http://einstein.phys.uwm.edu/forum_thread.php?id=6758&nowrap=true#85989[/url]



Actually in in the last weeks Einstein@home has been awarding 25% more credit on average than SETI@home. And the only reason  ... [/quote]
以和其他项目保持一致,具体是指什么项目？

这个要从积分系统的原理说起了，可以参考一下：

[url]http://www.equn.com/index.php/BOINC:%E4%BD%BF%E7%94%A8%E6%95%99%E7%A8%8B#BOINC_.E7.9A.84.E7.A7.AF.E5.88.86.E7.B3.BB.E7.BB.9F[/url]

如果同样都是使用官方程序计算，新出项目A的得分率要比原有的项目B要高，对项目B就不太公平，当然，项目B也可以提高自己的得分率，但这样下去可能就会乱了，也会导致积分前后的不一致，因此各个项目会尽量保持积分的稳定性和一致性。换句话说，不管采用什么积分方案，最终的得分情况应该和原始的boinc积分系统差不多（不考虑优化程序的情况）。

刚访问项目网站，看到服务端的web界面已经升级过了（和seti那边差不多），Your Account页面下方多了几种证书的链接（个人单项目，团队单项目，个人所有项目）。

缺省似乎会把原来的邮件通知给关掉，自己可以看情况打开（关掉的主要不好就是团队founder容易被人给拿走。。。）。

//

Server status里大部分服务还是停止状态：（

感觉证书的样式太简单了，连背景图片都没有，只有文字。

刚升级上来，希望以后会加上去吧[em01]

回复 #23 Youth 的帖子

一句话惊醒我梦中人，吓得我屁股尿流！

我这里三天了都不能上传。

me2，现在那边是晚上吧，不知道他们会趁着晚上负载轻的时候干活还是要等到白天。。。[em01]

现在服务器重开了，但依然是下载S5R3的包。