summary.log

The log file for the design optimization run, which contains the overall history of the optimization run.

The summary.log file for the four-bar model is show below. It tells you:
  • The time and date for the optimization run.
  • The Python version used.
  • Location of the input and output files.
  • The optimization run settings.
  • The simulation settings.
  • The iteration history.
  • The results from the optimization.
  • The final design table.
  • The total elapsed time for the run.
OPTIMIZATION HISTORY FILE
Version 0.1


************************************************************************
**  COPYRIGHT (C) 2004-2016                 Altair Engineering, Inc.  **
** All Rights Reserved.  Copyright notice does not imply publication. **
** Contains trade secrets of Altair Engineering, Inc.                 **
** Decompilation or disassembly of this software strictly prohibited. **
************************************************************************

Date             : 05/11/2016
Time             : 11:58:07
Python Version   : 2.7.6 | 64-bit | (default, Jun  4 2014, 16:42:26) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)]

Input File       : /Users/rajivr/Desktop/test/4bar.py
Output Directory : /Users/rajivr/Desktop/test/test-4bar_115807
Summary File     : /Users/rajivr/Desktop/test/test-4bar_115807/summary.log
Design Log File  : /Users/rajivr/Desktop/test/test-4bar_115807/design.log

Optimizer Settings
------------------
Algorithm        : FMIN_SLSQP
Max. # iterations: 50
Accuracy         : 1.000e-03

Simulation Settings 
------------------- 
Analysis         : KINEMATICS
End Time         : 2.0
DTout            : 0.01
DSA              : AUTO

Iteration #   Cost #    Objective       Mag(Slope)
--------------------------------------------------
   1             1      1.1368e+04      5.9417e+02
   2             3      2.1944e+03      7.9392e+01
   3             4      1.0535e+03      9.5027e+01
   4             6      5.1692e+02      4.5834e+01
   5             7      2.0020e+02      1.1842e+01
   6             8      1.5001e+02      1.2769e+01
   7             9      7.5452e+01      1.0250e+01
   8            10      5.5682e+01      3.9557e+00
   9            11      4.3578e+01      2.8370e+00
  10            12      4.1407e+01      2.4360e+00
  11            13      3.8562e+01      2.6164e+00
  12            14      3.5727e+01      2.1367e+00
  13            15      3.3712e+01      2.2006e+00
  14            17      3.2336e+01      2.2493e+00
  15            19      3.1539e+01      2.0010e+00
  16            21      3.0651e+01      1.6655e+00
  17            23      2.9913e+01      1.2340e+00
  18            25      2.9601e+01      8.6076e-01
  19            28      2.9552e+01      7.6627e-01
  20            30      2.9350e+01      6.4838e-01
  21            31      2.9082e+01      8.8139e-01
  22            32      2.8311e+01      1.1336e+00
  23            33      2.3582e+01      2.0366e+00
  24            34      1.6936e+01      2.9549e+00
  25            35      9.3320e+00      2.7959e+00
  26            36      4.8776e+00      2.8902e+00
  27            37      2.7456e+00      7.7631e-01
  28            38      2.3635e+00      1.8771e-01
  29            39      2.3447e+00      1.9977e-01
  30            40      2.3199e+00      4.2502e-02
  31            41      2.3041e+00      3.9178e-02

Optimization terminated successfully.

Results from Optimization
-------------------------
Initial Cost   = 11367.896
Final Cost     = 2.304
Cost reduction = 99.980

Individual Responses
--------------------
Weight = 1.00 Final cost of objective Coupler-DX  = 2.13    
Weight = 1.00 Final cost of objective Coupler-DY  = 0.15    
Weight = 1.00 Final cost of objective Coupler-PSI = 0.03    

Final Design Table
------------------

DV                Lower Bound        Upper Bound        Initial Value      Optimized Value
------------------------------------------------------------------------------------------
XA                -5.0000e+01        +5.0000e+01        -4.5000e+01        +2.4374e-02
YA                -5.0000e+01        +5.0000e+01        +4.5000e+01        -4.5262e-01
XB                +2.0000e+01        +8.0000e+01        +6.5000e+01        +3.9968e+01
YB                +1.8000e+02        +2.8000e+02        +2.6000e+02        +1.9953e+02
XC                +2.4000e+02        +3.8000e+02        +3.0000e+02        +3.6022e+02
YC                +4.0000e+02        +6.2000e+02        +5.0000e+02        +6.0040e+02
XD                +1.8000e+02        +5.2000e+02        +5.1500e+02        +3.9957e+02
YD                -1.0000e+02        +2.0000e+01        -8.5000e+01        +8.5563e-01

Elapsed Time for job                       = 20.75 seconds
  Time in Cost function                    = 4.77 seconds
  Time in Sensitivity function             = 15.11 seconds


Optimization process completed.