Originally posted by: SystemAdmin

I am solving an MIP using an iterative master-sub decomposition in my OPL script and would like to report the total cpu time. Does anyone know how to report this in OPL 6.3? Thanks.
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Originally posted by: Laval

Hi,

var before = new Date();
...
solve() your models
var after = new Date();

(after-before)/1000 is your total time in seconds.
I hope this answer your question.
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Originally posted by: SystemAdmin

Laval, thanks for the reply.

Correct me if I am wrong, but I think the date() function will only measure total elapsed time and not cpu time. Cpu time should be different, especially if multiple threads are being used.
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Originally posted by: Laval

You are right. Date () measures the elaspsed time and my suggestion will calculate the runing time of your models including I/O and CPU time. Its an approximation of the CPU time (equal or greater than CPU time). I didn't find any function in OPL that gives the exact CPU time in OPL.
For parallel optimization, I'm not familiar with it, I hope someonelese can help you on that.
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Originally posted by: GertWBelgium

I also have the same problem with my column generation models. I experimented with Powershell and the "measure-command" command, which also only gave wall clock time...

I am not a programming wiz, but are there other easy possibilities for running multiple instances and retrieving their CPU-time automatically (that is the cputime of OPLRUN.EXE)?
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