Comments (3)
The visual differences are pretty minute in some typefaces but one of these is a lower-case theta and the other is a capital theta, so I think it should be functioning as advertised. When I run the code as-is, I get the following trace from ROL:
Truncated CG Trust-Region Solver
iter value gnorm snorm delta #fval #grad tr_flag iterCG flagCG
0 1.889343e+03 3.155963e-02 6.678472e+04
1 6.465015e+02 1.940460e-02 6.678472e+04 1.669618e+05 3 2 0 2 3
2 6.465015e+02 1.940460e-02 1.669618e+05 1.043511e+04 4 2 2 3 2
3 4.715252e+02 1.421254e-02 1.043511e+04 2.608778e+04 5 3 0 1 3
...
24 1.868435e+01 9.166486e-05 3.796272e+03 9.490679e+03 26 20 0 5 3
Optimization Terminated with Status: Converged
when I change capital theta to 0.1 I get a different trace:
Truncated CG Trust-Region Solver
iter value gnorm snorm delta #fval #grad tr_flag iterCG flagCG
0 1.889343e+03 3.155963e-02 6.623245e+04
1 7.245687e+02 3.373541e-02 6.623245e+04 1.655811e+05 3 2 0 2 3
2 7.245687e+02 3.373541e-02 1.655811e+05 1.034882e+04 4 2 2 20 3
3 5.652582e+02 3.751109e-02 1.034882e+04 2.587205e+04 5 3 0 3 3
...
45 7.495780e+01 4.058215e-04 1.671746e+03 5.350215e+20 47 45 0 20 1
If you're getting different results I wonder if there's a unicode issue? I can lump together Big Theta and L into one variable to avoid this. I had it written this way for the units but maybe I was going overboard.
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Apologies, I must have scrambled things somewhere when making changes to the example, or made some other silly mistake. After rerunning the code all is well.
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No worries, thanks for giving it a look!
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