[petsc-dev] TAOPDIPM

[Barry Smith]

> On Aug 4, 2020, at 12:12 PM, Pierre Jolivet <pierre.jolivet at enseeiht.fr> wrote:
> 
> Hello,
> If I comment line 89 and 90 of src/tao/constrained/tutorials/ex1.c from master, the example deadlocks with a single process.
> Is this expected?
> 
> Thanks,
> Pierre
> 
> $  ./ex1 -tao_monitor
> ---- Constrained Problem -----
> Solution should be f(1,1)=-2
>  0 TAO,  Function value: 8.,  Residual: 8.48528
>  1 TAO,  Function value: 1.28532,  Residual: 10.7411
>  2 TAO,  Function value: -2.56703,  Residual: 1.87847
>  3 TAO,  Function value: -2.03161,  Residual: 0.12881
>  4 TAO,  Function value: -1.99961,  Residual: 0.0450855
>  5 TAO,  Function value: -1.99993,  Residual: 0.000916939
>  6 TAO,  Function value: -1.99999,  Residual: 6.69184e-05
>  7 TAO,  Function value: -2.,  Residual: 7.15427e-06
>  8 TAO,  Function value: -2.,  Residual: 7.15779e-07
>  9 TAO,  Function value: -2.,  Residual: 7.15777e-08
> 10 TAO,  Function value: -2.,  Residual: 7.15777e-09
> 11 TAO,  Function value: -2.,  Residual: 7.15779e-10
> 12 TAO,  Function value: -2.,  Residual: 7.15775e-11
> 13 TAO,  Function value: -2.,  Residual: 7.1599e-12
> 14 TAO,  Function value: -2.,  Residual: 7.1599e-13
> 15 TAO,  Function value: -2.,  Residual: 7.22085e-14
> 16 TAO,  Function value: -2.,  Residual: 6.44626e-15
> 17 TAO,  Function value: -2.,  Residual: 1.00751e-15
> 18 TAO,  Function value: -2.,  Residual: 1.70295e-17
> 19 TAO,  Function value: -2.,  Residual: 1.70295e-18
> 20 TAO,  Function value: -2.,  Residual: 1.70295e-19
> 21 TAO,  Function value: -2.,  Residual: 1.70295e-20
> 22 TAO,  Function value: -2.,  Residual: 1.70295e-21
> 23 TAO,  Function value: -2.,  Residual: 1.70295e-22
> 24 TAO,  Function value: -2.,  Residual: 1.70295e-23
> 25 TAO,  Function value: -2.,  Residual: 1.70295e-24
> 26 TAO,  Function value: -2.,  Residual: 1.70295e-25
> 27 TAO,  Function value: -2.,  Residual: 1.70295e-26
> 28 TAO,  Function value: -2.,  Residual: 1.70295e-27
> 29 TAO,  Function value: -2.,  Residual: 1.70295e-28
> 30 TAO,  Function value: -2.,  Residual: 1.70295e-29
> 31 TAO,  Function value: -2.,  Residual: 1.70295e-30
> 32 TAO,  Function value: -2.,  Residual: 1.70295e-31
> 33 TAO,  Function value: -2.,  Residual: 1.70295e-32
> 34 TAO,  Function value: -2.,  Residual: 1.70295e-33
> 35 TAO,  Function value: -2.,  Residual: 1.70295e-34
> 36 TAO,  Function value: -2.,  Residual: 1.70295e-35
> 37 TAO,  Function value: -2.,  Residual: 1.70295e-36
> 38 TAO,  Function value: -2.,  Residual: 1.70295e-37
> 39 TAO,  Function value: -2.,  Residual: 1.70295e-38
> 40 TAO,  Function value: -2.,  Residual: 1.70295e-39
> 41 TAO,  Function value: -2.,  Residual: 1.70295e-40
> 42 TAO,  Function value: -2.,  Residual: 1.70295e-41
> 43 TAO,  Function value: -2.,  Residual: 1.70295e-42
> 44 TAO,  Function value: -2.,  Residual: 1.70295e-43
> 45 TAO,  Function value: -2.,  Residual: 1.70295e-44
> 46 TAO,  Function value: -2.,  Residual: 1.70295e-45
> 47 TAO,  Function value: -2.,  Residual: 1.70295e-46
> 48 TAO,  Function value: -2.,  Residual: 1.70295e-47
> 49 TAO,  Function value: -2.,  Residual: 1.70295e-48
> 50 TAO,  Function value: -2.,  Residual: 1.70295e-49
> 51 TAO,  Function value: -2.,  Residual: 1.70295e-50
> 52 TAO,  Function value: -2.,  Residual: 1.70295e-51
> ^C