超算平台 | SLURM 的使用

对于我这个初学者而言，SLURM 学习还是有一定难度。本文参考：slurm入门，在此谢谢作者！

1. SLURM 的安装和使用

# 安装slurm及其依赖
sudo apt-get install slurm-llnl

2. 配置slurm

可使用在线是slurm 配置器，由它为我生成基于表单数据的配置文件。注意：需根据自己超算的情况进行修改。

面向单节点集群的SLURM 配置文件，这个还没弄，到时候再看！

# slurm.conf file generated by configurator.html.
# Put this file on all nodes of your cluster.
# See the slurm.conf man page for more information.
#
ControlMachine=mtj-VirtualBox
#
AuthType=auth/none
CacheGroups=0
CryptoType=crypto/openssl
MpiDefault=none
ProctrackType=proctrack/pgid
ReturnToService=1
SlurmctldPidFile=/var/run/slurmctld.pid
SlurmctldPort=6817
SlurmdPidFile=/var/run/slurmd.pid
SlurmdPort=6818
SlurmdSpoolDir=/tmp/slurmd
SlurmUser=slurm
StateSaveLocation=/tmp
SwitchType=switch/none
TaskPlugin=task/none
#
# TIMERS
InactiveLimit=0
KillWait=30
MinJobAge=300
SlurmctldTimeout=120
SlurmdTimeout=300
Waittime=0
#
# SCHEDULING
FastSchedule=1
SchedulerType=sched/backfill
SchedulerPort=7321
SelectType=select/linear
#
# LOGGING AND ACCOUNTING
AccountingStorageType=accounting_storage/none
ClusterName=cluster
JobCompType=jobcomp/none
JobCredentialPrivateKey = /usr/local/etc/slurm.key
JobCredentialPublicCertificate = /usr/local/etc/slurm.cert
JobAcctGatherFrequency=30
JobAcctGatherType=jobacct_gather/none
SlurmctldDebug=3
SlurmdDebug=3
#
# COMPUTE NODES
NodeName=mtj-VirtualBox State=UNKNOWN
PartitionName=debug Nodes=mtj-VirtualBox default=YES MaxTime=INFINITE State=UP

最后一步说是生成一组作业凭证秘钥，且使用openssl 作为其凭证秘钥。

清单2. 为slurm 创建凭证

$ sudo  openssl  genrsa  -out  /usr/local/etc/slurm.key  1024
Generating RSA private key, 1024 bit long modulus
.................++++++
............................................++++++
e is 65537 (0x10001)
$ sudo openssl  rsa  -in  /usr/local/etc/slurm.key -pubout -out /usr/local/etc/slurm.cert
writing RSA key

完成凭证后，可以启动slurm 并与其交互。

3. 启动slurm

$ sudo /etc/init.d/slurm-llnl start  

清单3. 使用sinfo命令来查看集群

$ info
================================================================    
PARTITION     AVAIL    TIMELIMIT    NODES   STATE     NODELIST 
debug*        up       infinite     1       idle      mtj-VirtualBox    
================================================================

4. 更多的slurm命令

scontrol
清单4 . 用scontrol 了解集群详细信息