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Charging Algorithm

UPDATE: 8/13/98:
 
A normalization factor of 1.282 will be added to the charging
algorithm for the new 250MHz Origin machines.
 
The charging algorithm on the Origin2000 is as follows:

       
# ServiceUnits (SUs) = NormFactor * ServiceLevel * Time 

where

        NormFactor = 1 for 195MHz R10000
                   = 1.282 for 250MHz R10000

	ServiceLevel = 1.0  for Normal Interactive
                     = 1.0  for Normal Batch
                     = 1.25 for Industrial Batch 
                     = 1.0  for Normal Dedicated Batch
		     = 1.25 for Industrial Dedicated Batch
                     = 2.0  for Priority Dedicated Batch [*]

	Time = Total CPU Hours (Timeshared mode)
             = Total Wall Clock Hours * Number of CPUs on the 
                                         host (Dedicated mode) 


[*] handled on a case by case basis

IMPORTANT: Note that jobs running in the dedicated queue will be charged
for *all* CPUs on the host regardless of how many processors the job uses.  

For e.g., a job that runs for 2 wall clock hours in one of the 128 dedicated
queues will be charged:

         1.282 * 1.0 * 2 * 128 = 328.192 SUs


The command "usage" gives user account usage information.

Silicon Graphics Origin2000:usr/news/Charging_Algorithm
Last Modified: December 8, 2000

ncsa

Charging Algorithm