MOGA final solutions dont match calculated solutions from .tab file

[brunorossin]

Dear Dakota community,

I noticed a difference between the (1) final_solutions provided by MOGA and (2) The final solutions I calculate based on the data dumped into the .tab file. The three best solutions Dakota gives are [18220, 47656, 49193]. The best solutions I calculate are [3968, 20543, 47656]. I also see that the 4th and 5th best solutions of my calculation are [18220, 49193], so the ones given by Dakota as 2nd and 3rd.

The calculation I am doing for this 3-objetivce MOGA is:

resp_i = ( (f1_i -f1_u) ^2 + (f2_i -f2_u) ^2 + (f3_i -f3_u) ) ^0.5

Where u is the utopica point, minimum response among all iterations.

I am using scaling but I see that the responses in the .tab file are already scaled. The MOGA was run a Linux cluster. My calculations were performed on Windows with Python and Excel (for a check). These last two match. I am using Dakota 6.22.0. I attached the dakota input and tab files. The output file was too big so I pasted the final solutions to this message.

Thank you for the help!

Bruno.

dakota_output, start

<<<<< Function evaluation summary (aNySIM): 53367 total (52856 new, 511 duplicate)
<<<<< Best parameters (set 1) =
1.2210293944e+00 spr_len
1.3364286853e+00 low_len
1.0262167135e+00 low_sub
1.1138251999e+00 wir_len
1.3896745247e+00 wir_sub
1.7782573312e+00 anc_dep
moga label
<<<<< Best objective functions (set 1) =
6.7288204014e+03
3.3021024134e+03
3.3714628670e+04
<<<<< Best evaluation ID: 47656

<<<<< Best parameters (set 2) =
5.9508921164e-01 spr_len
1.7109468322e+00 low_len
1.0026724359e+00 low_sub
5.7825111229e-01 wir_len
9.6494138216e-01 wir_sub
1.7175967492e+00 anc_dep
moga label
<<<<< Best objective functions (set 2) =
6.7483367060e+03
4.4190125992e+03
9.5114807661e+03
<<<<< Best evaluation ID: 18220

<<<<< Best parameters (set 3) =
1.9929475659e+00 spr_len
1.3395073297e+00 low_len
9.0512542900e-01 low_sub
9.9285964784e-01 wir_len
1.4398589816e+00 wir_sub
1.6853093299e+00 anc_dep
moga label
<<<<< Best objective functions (set 3) =
7.5136913355e+03
2.1385284965e+03
1.5940997147e+04
<<<<< Best evaluation ID: 49193

<<<<< Iterator moga completed.
<<<<< Environment execution completed.
DAKOTA execution time in seconds:
Total CPU = 79.2314 [parent = 79.2314, child = 3e-06]
Total wall clock = 24172

dakota_output, end

dakota_input.txt
dakota_tab.txt

[brunorossin]

Correction: resp_i = ( (f1_i -f1_u) ^2 + (f2_i -f2_u) ^2 + (f3_i -f3_u) ^2 ) ^0.5