Changeset 1542

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Timestamp:
10/13/08 02:59:27 (1 month ago)
Author:
dmitrey.kroshko
Message:

minor doc update

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  • trunk/openopt/scikits/openopt/examples/oofun/speedup.py

    r1538 r1542  
    22This example illustrates a great speedup that can be achieved 
    33via using oofun and oovar vs "classic" style, 
    4 even for unconstrained functions. 
     4even for unconstrained functions, 
     5provided the solver deals with at least 1st derivatives, 
     6so scipy_cobyla, goldenSection, scipy_fminbound, scipy_powell 
     7or GLP solvers are inappropriate 
    58 
    69The speedup is due to changes in derivatives numerical approximation approach: 
    …… 
    7073   31  4.862e+02 
    7174istop:  1000 
    72 Solver:   Time Elapsed = 1.51 CPU Time Elapsed = 1.49 
     75Solver:   Time Elapsed = 1.51   CPU Time Elapsed = 1.49 
    7376objFunValue: 486.20891 
    7477evals f: 17887   evals of costly func g: 305 
    …… 
    8689   27  4.861e+02 
    8790istop:  1000 
    88 Solver:   Time Elapsed = 15.09         CPU Time Elapsed = 14.29 
     91Solver:   Time Elapsed = 15.09 CPU Time Elapsed = 14.29 
    8992objFunValue: 486.07635 
    9093evals f: 13660   evals of costly func g: 13660