Searched refs:psfac (Results 1 – 5 of 5) sorted by relevance
| /petsc/src/tao/unconstrained/impls/nls/ |
| H A D | nlsimpl.h | 60 PetscReal psfac; /* Perturbation shrink factor */ member
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| H A D | nls.c | 425 pert = PetscMin(nlsP->psfac * pert, nlsP->pmsfac * gnorm); in TaoSolve_NLS() 744 …PetscCall(PetscOptionsReal("-tao_nls_psfac", "shrink factor", "", nlsP->psfac, &nlsP->psfac, NULL)… in TaoSetFromOptions_NLS() 896 nlsP->psfac = 4.0e-1; in TaoCreate_NLS()
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| /petsc/src/tao/bound/impls/bnk/ |
| H A D | bnk.h | 87 PetscReal psfac; /* Perturbation shrink factor */ member
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| H A D | bnk.c | 650 bnk->pert = PetscMin(bnk->psfac * bnk->pert, bnk->pmsfac * bnk->gnorm); in TaoBNKSafeguardStep() 1083 …_bnk_psfac", "(developer) Hessian perturbation shrink factor", "", bnk->psfac, &bnk->psfac, NULL)); in TaoSetFromOptions_BNK() 1263 bnk->psfac = 4.0e-1; in TaoCreate_BNK()
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| /petsc/doc/manual/ |
| H A D | tao.md | 974 > | ``psfac`` | real | :math:`0.4` | Perturbation shrink| 1173 \rho_{k+1} = \min\left\{\text{psfac} * \rho_k, \text{pmsfac} * \|g(x_k)\|\right\}, 1177 `psfac` is set with the command line argument `-tao_nls_psfac`
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