Originally posted by: SystemAdmin

[a_shraideh said:]

Hello every body
i use cplex9.1 and java
i read a lot of subjects concerning comuting execution time
i used the following

long beginTime = System.nanoTime();
long stop = System.currentTimeMillis();
long endTime = System.nanoTime();
cplex.solve()
System.out.println("Solution time = " + ((endTime - beginTime) / 1E6) + " ms.");


but every time i have different execution time , knowing that i use always the same data file??
has anybody explication for that ??

#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

[MaryFenelon said:]

You might want to look at this blog post:

http://www.simongbrown.com/blog/2007/08/20/millisecond_accuracy_in_java.html
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

[a_shraideh said:]

Thank you very much it was really helpfull

#CPLEXOptimizers
#DecisionOptimization