Using and Administering

Processor Configuration

The processors are configured as follows:

• parallel nodes support a mixture of short, medium, long, and verylong classes.
• batch nodes support the same class mix as parallel. Additional paging space is available on these nodes to provide multiple jobs running per node.
• interactive nodes support the night class only. The night class only allows jobs to start after 6 PM and before midnight during the week and anytime on weekends. A maximum CPU time of 8 hours ensures that the jobs are finished when the prime shift starts. This is configured using LoadLeveler's START expression:

  Is_Weekend          = (tm_wday==0  || tm_wday==6)
  Is_Start_Night_Time = (tm_hour>18)
   
  START: $(Is_Start_Night_Time) || $(Is_Weekend)