Tips for supercomputer ITO-A at Kyushu University
jsasakiThis page is tips for the usage of supercomputer ITO-A at Kyushu University.
The service ends in February 2023
About disk quota
Check status of disk usage
You may encounter an error message like disk quota exceeded when the disk used exceeds its quota. You can check the disk status:
lfs quota -g group_name /homeDisplayed something like as follows:
Disk quotas for group ******* (gid *****):
Filesystem kbytes quota limit grace files quota limit grace
/home 10738166000* 10737418240 10737418240 - 2307227 8000000 10000000 -Where kbytes(=10738166000*): used (kbytes), quota(=10737418240): disk quota (software limit), limit (=10737418240): disk quota (hardware limit)，grace (-): Approved duration with exceeded disk quota status，files (=2307227): the number of files used. In this example, the used disk area exceeded the disk quota and thus an error may appear when writing on the disk.
check status of disk usage for each account
You may check the status of each of the accounts in the group.The name of each accout can be disclosed after requesting the computer center administration.
qrepquotaYou will see something like as follows where quota, limit, and grace have no meanings here.
Disk quotas for members of group ******** (gid *****):
Filesystem kbytes quota limit grace files quota limit grace
/home 99031996 0 0 - 464460 0 0 -[#######]
/home 52 0 0 - 14 0 0 -[*******]
/home 9422956488 0 0 - 753914 0 0 - [*******]
/home 296 0 0 - 50 0 0 -[*******]
/home 52 0 0 - 14 0 0 -[*******]
/home 264619884 0 0 - 33480 0 0 - [*******]
/home 118451796 0 0 - 15857 0 0 - [*******]
/home 803972292 0 0 - 594692 0 0 - [*******]
/home 2893280 0 0 - 59349 0 0 -[*******]
/home 52 0 0 - 14 0 0 -[*******]
/home 4594988 0 0 - 114358 0 0 -[*******]
/home 52 0 0 - 14 0 0 -[*******]
/home 2145584 0 0 - 10051 0 0 -[*******]
/home 52 0 0 - 14 0 0 -[*******]
/home 52 0 0 - 14 0 0 -[*******]
/home 228 0 0 - 46 0 0 -[*******]
/home 224 0 0 - 53 0 0 -[*******]
/home 19498580 0 0 - 260819 0 0 -[*******]
/home 52 0 0 - 14 0 0 -[*******]
Disk quotas for group ******** (gid *****):
Filesystem kbytes quota limit grace files quota limit grace
/home 10738166000* 10737418240 10737418240 - 2307227 8000000 10000000 -Background job execution of bash script on login node
You may want to execute a bash shell script as a background job to automate the process of obtaining software, configuring, making, etc. Suppose that the file name of the bash shell script executed in this background is setup_ini.sh, you can execute it as follows. ./setup_ini.bash & will be killed at the time of logout.
nohup ./setup_ini.sh &A log file named nohup.out will be created in the directory where setup_ini.sh exists.
