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condor [2016/01/12 12:37]
aykutbulut [Using AMPL with Condor]
condor [2016/10/07 09:25]
sertalpbilal
Line 1: Line 1:
 ======CONDOR====== ======CONDOR======
 +
 +<note warning>​If you are a new user, please use [[tutorial:​torque|Torque]]</​note>​
 +
 +<note important>​CONDOR will be deprecated. You need to switch new scheduling system [[tutorial:​torque|Torque]] at your earliest chance.</​note>​
  
 ===== What is CONDOR ===== ===== What is CONDOR =====
Line 261: Line 265:
 ===== Some other CONDOR commands ===== ===== Some other CONDOR commands =====
  
-^ Command ^ Action ^+^ Command ^ Action ​^ Info ^
 | ''​condor_userprio''​ | shows the user priority | condor_userprio | | ''​condor_userprio''​ | shows the user priority | condor_userprio |
 | ''​condor_status''​ | show the current status of CONDOR nodes | | ''​condor_status''​ | show the current status of CONDOR nodes |
Line 277: Line 281:
 ''​concurrency_limits = AMPL''​ ''​concurrency_limits = AMPL''​
  
 +===== Condor Jobs Memory Usage =====
 +Please check status of your condor jobs regularly, especially memory usage.
 +Each polyp node has 16 processors and 32 GB memory. This means 1 process
 +gets 2 GB memory in average.
 +
 +When a polyp node is out of memory it starts using hard drive (swap) as memory
 +but reading and writing from hard drives is 1000 times slower. This means
 +if your jobs are using large amounts of memory and the polyp node processing
 +your job is out of memory, do not expect your job to terminate.
 +
 +Tips:
 +You can see memory usage of your job using ''​condor_q''​ command (7th column
 +gives memory usage in MB).
 +
 +You can check the node your job is running using ''​condor_q -run''​
 +
 +You can check memory status in a node using ''​ssh polyp6 "​vmstat -s"''​.
 +For more memory checking commands see http://​www.binarytides.com/​linux-command-check-memory-usage/​
 +or google is your friend.
 +
 +**Your job might get killed if it is using swap. Do not waste your
 +system administrators'​ time with this and force them to police the condor jobs.
 +Just control your jobs and submit jobs that are reasonable.**
  
condor.txt ยท Last modified: 2017/07/16 00:05 by sertalpbilal