给LHC@home用户的第3阶段报告

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3rd STATUS REPORT FOR THE USERS OF LHC@home
January 14, 2005
Dear Users:
In our last Status Report: http://lhcathome.cern.ch/announcement2.html
we said:
"Please accept our holiday and New Year's greetings - and see you in 2005!"
Now the holidays are over, we can tell you what we have achieved during the shutdown and what we plan over the next 2-3 weeks.
First, our new high-tech server hardware will be installed next week and the BOINC system will be configured and tested on it over the following week.
Second, a lot of work has been devoted to the Sixtrack application code to eliminate the small numerical differences that could occur in some problems when run on a wide variety of hardware and operating systems. This has been solved by Eric McIntosh and Frank Schmidt, using a new state-of-the-art floating point function library developed by Florent de Dinechin and his team at Ecole Normale Superieure in Lyon. A bug fix has also been made to the checkpoint-restart code which could possibly have been the cause of occasional Sixtrack execution errors.
Third, a large number of accelerator tracking studies now need to be run, to confirm and extend the series begun in 2004 with LHC@Home.
So new work will begin to appear on the site in the last week of this month, and major production runs will be restarted in early February.
Thanks again to our crunchers for their patience and interest!
Ben Segal - LHC@Home Coordinator
译文如下：
给LHC@home用户的第3阶段报告
2005年1月14日
亲爱的用户：
在我们上次的报告里：http://lhcathome.cern.ch/announcement2.html
我们说：
"请接受我们的假期和新年的问候 - 2005年见"！
现在假期结束了，我们可以告诉你我们在关闭期间里取得什么，我们随后的2-3周的计划。
首先，下星期我们将安装新高科技服务器硬件，在随后的一星期里我们将调试和测试其上的BOINC系统。
其次，努力解决了Sixtrack程序代码里的小的数值误差问题，在某些硬件和操作系统上运行时可能会导致错误。Eric McIntosh和Frank Schmidt通过使用由里昂的Florent de Dinechin和他的的Ecole Normale Superieure团队开发最新型的浮点函数库已经解决了这个问题。修正了重新启动检查点代码的一个BUG－可以导致Sixtrack偶尔发生运行错误。
再次，现在需要进行许多加速器跟踪研究，确认并且扩展2004年LHC@Home开始运行的一系列数据。
因此新的任务将在这个月的最后一周放到网站上，并且重要的任务将在2月初开始重新运行。
再次为用户们的耐心和兴趣表示感谢！
Ben Segal - LHC@Home负责人

翻译 BY VMZY