7.1 BESIII
7.1.1 Computing Services
In local cluster, there are about 7,000 CPU cores and 2.4PB storage belonging to BESIII.
account for computing cluster
Please see chapter 2. We will create the afs account when the application is approved by the BES contact person;
job submission and management
Please see the descriptions for BESIII in section
3.2.2.2;
The webpage for BESIII computing environment and software: https://docbes3.ihep.ac.cn/
Moreover, we also provide distributed computing service to BESIII users (please see the chapter for distributed computing).
7.1.2 Storage
Each BES user has several personal directories, as shown in the following table. The quota of the file size and file numbers are different for each directory.
| Directory | Quota of size/NO. of files | Quota querying | Utility |
|---|---|---|---|
| /afs/ihep.ac.cn/users/username | 500MB/none | fs listquota /afs/ihep.ac.cn/users/username | Personal files and software |
| /workfs/bes/username | 5GB/50,000 | lfs quota -u username /workfs | Personal files and software |
| /scratchfs/bes/username | 500GB/none（keep for 2 weeks） | lfs quota -u username /scratchfs | Personal temporary files |
| /besfs/users/username | 50GB/300,000 | Personal data files | |
| /home/bes/userdata/username | 200MB/none | quota -u username | Personal files |
Besides the personal directories, there are additional storage for BES. Only the owner of these directories is able to write data there. The details can be found via https://boss.ihep.ac.cn/
7.1.3 Attentions
/home/bes/is a NFS file system. It is used only for personal software and small files. Please do not save experiment data here and do not access it massively, or else the NFS file system might be crashed./afsand/workfsare used for users' valuable files. They are used for users' personal software and code. These 2 directories can be accessed on login nodes with no limit, but they are read only on computing nodes. Please do not write data or logs in these directories in your jobs, or else the jobs will be failed. Please see section3.2.2for the job logs.- More information can be found at https://boss.ihep.ac.cn/ for the computing environment and offline software.