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发表于 2017-11-13 20:59:35
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Dears,
we would like to test our new CPU multicore application for quantum chemistry tasks ("QC"). Since it’s the first time we have a CPU app out, I’ll test the behavior of GPUGRID with a relatively large batch that you will see soon. Workunits are named "*QC309big*".
Here’s some features of the app, in short (subject to change):
* Platform: Linux only for now, generic x64.
* Threads: as many as Boinc decides. I guess it depends on your machine, your preferences, and other running tasks in ways which are obscure to me…
* Run time: about 1 CPU hour per WU (so, shorter if multithreading)
* Credit: computed with the default algorithm (tasks are short, don’t expect much). Bonus mechanism for fast turnaround is still on.
* Known bugs: restarts and checkpoints. This should be mitigated with the “keep in memory when suspended” option. Sorry about that, it’s outside of our control.
* Network behavior: the first time you get a WU of this kind it downloads a Python interpreter (miniconda) and then some open-source packages, and installs them in the project directory. The installation is reused whenever possible.
* Disk usage: could go around 1 GB, perhaps more when tasks are running. Resetting the project should remove everything.
* Memory usage: should be around 1 GB when running.
Depending on the results of this test, we’ll start thinking about other platforms.
Thanks and nice crunching!
Toni
亲们，
我们准备开始测试量子化学（QC）任务的新多核计算程序了。因为这是我们第一次推出cpu计算程序，所以需要不少测试，接下来各位很快就会收到一大堆叫做“*QC309big*”的测试包。
下面简单列几点新程序的特性：
平台：目前Linux独占，原生x64
线程：由boinc决定。根据硬件情况和boinc设置或者其他我不知道的情况决定。。。（那就是有能力有多少用多少呗？
运行时间：大概1cpu小时跑一个包（所以多线程时间会短些）（译问：这是一个包分多线程跑啊？）
分数：由原来的算法确定（都是小包，不会很高）。Bonus mechanism for fast turnaround is still on
已知问题：重开程序和存盘点问题。关闭boinc的“暂停计算时程序驻留在内存”选项可以减轻症状。十分抱歉，这个问题我们办不了。。
网络活动：首次下载此类任务包的时候会同时下载一个Python 解释器 (miniconda)和一些开源程序包到项目目录下。
磁盘占用：大概能用到1GB左右，计算进行期间可能会占用多一些。
内存使用：计算时大约要占用1GB左右。
根据此次测试结果，我们会开始考虑其他平台。（？？？）
多谢各位，祝算好！
Toni
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发表于 2013-2-10 02:13:06