CAS@home

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TreeThreader Job Submission server glitch
There is a network glitch on the TreeThreader Job Submission server, so no new jobs will be submitted to CAS@home before this is fixed! We will keep you updated of the situation from here! Sorry for the inconvenience!

TreeThreader的作业发送服务器出现网络故障，目前正在抢修。在此之前，新作业的发送将被停止，我们将再此提供最新的更新。带来不便，请见谅！ 22 May 2013, 6:05:42 UTC · Comment

TreeThreader Job Submission glitch
There is a network glitch on the TreeThreader Job Submission server, so no new jobs will be submitted to CAS@home before this is fixed! We will keep you updated of the situation from here! Sorry for the inconvenience!

TreeThreader的作业发送服务器出现网络故障，目前正在抢修。在此之前，新作业的发送将被停止，我们将再此提供最新的更新。带来不便，请见谅！ 22 May 2013, 6:04:40 UTC · Comment

TreeThreader Calls for more Computing Power
TreeThreader application(software for protein structure prediction) recently has 50K new sequences for prediction, with each sequece requires around 85 CPU hours computation time,this equals to a 4.25M CPU hours computing time. Because of the limitation of the Job Submission system, new jobs are not generated continously on the server side. To solve this problem, we are trying to tighten the deadline, increase replication number, and increase the parallelism on the Job Submission end so that volunteer hosts can receive more new jobs!

TreeThreader近期有大约5万条序列需要进行结构预测，每条序列大约平均需要85个CPU小时的处理时间，因此估计大约总计需要425万个CPU小时才能完成这批任务，请各位志愿者积极支持TreeThreader!由于TreeThreader前端作业提交服务系统的限制，新作业并非是源源不断产生的，我们将采取通过缩短deadline，加大replication数目，增加前端并行能力，尽量使得志愿主机取得更多的作业。 30 Apr 2013, 14:49:58 UTC · Comment

Deadline for TreeThreader
We adjusted the deadline several times for TreeThreader upon requests from volunteers. But due to the specific setup on the frontend server of TreeThreader which generate and submit jobs to CAS@home, this application needs a tighter deadline. The frontend server allows maximum 300 batches (9600 jobs) to run on CAS@home in parallel, so if the deadline is too loose, some batches do not get return in time and it will prevent the frontend server from submitting new jobs to CAS@home server. This leaves the fast voluteer hosts in a starving situation. To resolve this paradox, we examine the running time of all finished jobs of TreeThreader, and reach a conclusion that 98% jobs require less than 4.16hours on an average host and the longest running time job is 26.1hours on an exremely slow host (0.7GFLOS/s). Based on above analysis, we reset the TreeThreader job deadline to be 36hours. Please leave your feedback here if any exceptions happen on your host. Thanks!

Clients can not get new jobs?：
The TreeThreader Job Submission portal only allows 9600 jobs running in parallel(each sequence needs to be pre-processed before being submitted and also post-processed after collecting the results), so when all these jobs are being claimed and run on volunteer hosts, there won't be any new jobs generated from the server for the clients to request

应志愿者要求，我们几次调整过TreeThreader的deadline.但是由于TreeThreader前端提交作业服务器的限制，我们目前设置的deadline（72小时）太松了，使得TreeThreader不能充分利用CAS@home的资源。TreeThreader前端服务器允许在CAS@home平台上同时运行300个batch的作业（9600个作业），如果deadline太松，某些batch由于等待一两个晚到的作业结果，不能及时返回到前端服务器，从而阻止前端服务器产生更多的新的作业。这种状况使得大部分空闲的志愿主机处于“饥荒”状态。为了解决这一矛盾，我们仔细分析了所有作业的完成时间，得出以下结论：TreeThreader 98%的作业运行时间低于4.16小时（在一台普通主机上），数据库中记录运行时间最长的作业为26.1小时（该作业运行在一个速率极低的主机上，该主机的计算能力为0.79GFLOPS每秒）。基于上述分析，我们将TreeThreader作业的deadline设置为36小时。如果在您主机上出现任何异常，请在此反馈！谢谢！

关于客户端领取不到新任务的原因：
没有可下载的新任务，是因为前端作业提交服务器最多运行同时运行9600个作业（每条蛋白质序列在被提交前都要进行验证处理，收回结果后需要进行后期处理），所以当这些作业被主机认领但是没有返回结果之前，服务器端是没有新的作业可认领的。 23 Apr 2013, 8:08:11 UTC · Comment

Application Status: TreeThreader
With the kind assistants of our volunteers, TreeThreader developers from ICT finnaly are able to fix all the bugs in the software. We launched the most recent version TreeThreader 1.21 on 19th March 2013, and statisitics shows the Error Job Rates is reduced from 28% to 3%, and Faulty Host Rate (a faulty hot is a host which has never finished a TreeThreader job) is down from 33% to 3%. Since the software is stable now, ICT scientists plan to submit a big batch of jobs in the near future.
Special thanks to our volunteers 王梓任 and sow-5

在志愿者的热心帮助下，TreeThreader的开发人员终于追踪和修复了软件的bug。我们于2013年3月19日发布了TreeThreader的最新版本V1.21, 统计信息显示TreeThreader软件的bug已经被清除了，作业的错误率从老版本的28%下降到3%，错误主机率（错误主机为从未完成任何一个TreeThreader作业的主机）从老版本的33%下降到3%。因为软件已经稳定化了，ICT的科学家们将在近期提交大批作业。
特别感谢志愿者王梓任和 sow-5给予的宝贵协助！ 21 Mar 2013, 3:16:50 UTC · Comment