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发表于 2009-7-17 14:28:45
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July 16, 2009
A new type of work unit
We are preparing for the public release of a new work unit category: extra-large advanced methods work units. Some background information is provided below; we'll update this thread with more details as they emerge.
Why a new work unit category?
We have some specific projects where we 1) have large simulation systems and 2) want to get results fast. As multi-core processors get more powerful, we can perform calculations on Folding@Home that
previously required supercomputing clusters.
What's different about these work units from the donor perspective?
These work units are special SMP work units that have larger upload and download sizes, shorter deadlines, and require more memory and CPU resources. That's why we've created a new category.
Is there any points incentive for running these work units?
The base value of these work units corresponds roughly to what an SMP work unit using the A2 core would yield on an equivalent calculation. However, because fast completion is a scientific priority for these work units, we are doing a **trial** of a new bonus scheme where faster WU completion yields a points bonus.
What systems can run these work units?
Right now, only Linux and OS/X systems can run these work units, and they require 8 or more cores. We prefer 8+ *physical* cores, although fast Core i7 machines that are dedicated folders have proven
sufficient during the testing process. The points incentives are designed to match appropriate resources to points value; if your machine is marginal for the extra-large work units, you're probably
better off running standard SMP.
Does this have any relation to the large-points value work units and recent high-scoring users?
Yes. The initial projects are 2681 and 2682, valued at ~25K points base. Although these point values seem high, the work units are correspondingly larger, so the base PPD (points per day) value is
roughly comparable to standard SMP.
A collaborator has donated a large amount of compute time to this project; those clients were initially running under username Anonymous/team 1. To give proper credit for the donation, we have
changed the username to PDC, team 1. During the period of this donation, there are at any time between 100 and 400 8-core clients running under this username (800-3200 cores total).
Please stay tuned for further details regarding the upcoming release.
大意：
新增extra-large advanced methods（超级）任务包类型。暂时只对MAC和LINUX平台SMP客户端开放。
此类任务特点，包大（上传/下载数据量大，小猫勿入），期限短（非7*24勿入），内存需求高（4G以下勿入），计算量大（8物理核以下cpu勿入），PPD高（理论ppd是GPU2的10倍）。
译者注：有这种BT任务，smp2夺取性能桂冠指日可待啊！搬小板凳等官方出smp2。
参加方式：
首先，检查你的硬件，带宽够不够，稳不稳定，能不能24小时开机，内存是否够（官方建议6G），cpu的物理内核是否达到8个，系统是否为OSX或LINUX。
其次，如果没有安装smp客户端，到官方下载标准版SMP客户端，安装。然后下载覆盖升级版内核程序。
Linux:
http://www.stanford.edu/~kasson/folding/linux/fah6
statically linked, MD5 sum 29d2ee580f6f79ac996ad29f22554ec0
and for the console OSX/Intel client:
http://www.stanford.edu/~kasson/folding/osx/fah6
MD5 sum 44eeb86e2a4f19a7266591deba504474
最后，在启动命令后挂参数-bigadv。如果之前挂了-adv参数的大侠，请替换为新的参数。
[ 本帖最后由 vmzy 于 2009-7-17 14:44 编辑 ] |
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发表于 2009-7-6 11:54:08
，不知道传说中的SMP2版本进展如何？
