[GE users] qacct WALLCLOCK interpretation

Greg Lukeman glukeman at stfx.ca
Tue May 29 16:20:49 BST 2007


Hi All,

As far as I understand (probably not far), when qacct reports  
WALLCLOCK for a job, it sums up the ru_wallclock for each parallel  
task.  Similarly when qacct reports CPU for a job, it sums up the cpu  
for each parallel task.

In what situations, then, could qacct show CPU greater than WALLCLOCK?

I have some users for whom CPU is significantly (like 7x) greater.

Cheers,

Greg



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