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Searched refs:anorm (Results 1 – 3 of 3) sorted by relevance

/petsc/src/ksp/ksp/impls/lsqr/
H A Dlsqr.c22 …PetscReal anorm; /* Poor estimate of norm(A*inv(Pmat),'fro') used in specific stopping criter… member
148 if (lsqr->exact_norm) PetscCall(MatNorm(Amat, NORM_FROBENIUS, &lsqr->anorm)); in KSPSolve_LSQR()
149 else lsqr->anorm = 0.0; in KSPSolve_LSQR()
166 …if (!lsqr->exact_norm) lsqr->anorm = PetscSqrtReal(PetscSqr(lsqr->anorm) + PetscSqr(alpha) + Petsc… in KSPSolve_LSQR()
367 PetscErrorCode KSPLSQRGetNorms(KSP ksp, PetscReal *arnorm, PetscReal *anorm) in KSPLSQRGetNorms() argument
373 if (anorm) *anorm = lsqr->anorm; in KSPLSQRGetNorms()
397 …norm %14.12e matrix norm %14.12e\n", n, (double)rnorm, (double)lsqr->arnorm, (double)lsqr->anorm)); in KSPLSQRMonitorResidual_LSQR()
598 if (lsqr->arnorm < ksp->rtol * ksp->rnorm0 + ksp->abstol * lsqr->anorm * xnorm) { in KSPLSQRConvergedDefault()
600 …double)ksp->abstol, lsqr->exact_norm ? "exact" : "approx.", (double)lsqr->anorm, (double)xnorm, n)… in KSPLSQRConvergedDefault()
602 } else if (lsqr->arnorm < ksp->abstol * lsqr->anorm * rnorm) { in KSPLSQRConvergedDefault()
[all …]
/petsc/src/mat/tests/
H A Dex185.c11 PetscReal xnorm, ynorm, anorm; in main() local
28 PetscCall(MatNorm(A, NORM_FROBENIUS, &anorm)); in main()
29 …scCheck(PetscAbsReal(anorm - 4) <= PETSC_SMALL, PETSC_COMM_WORLD, PETSC_ERR_PLIB, "Expected norm 4… in main()
/petsc/src/tao/leastsquares/impls/pounders/
H A Dgqt.c220 …PetscReal alpha, anorm, bnorm, parc, parf, parl, pars, par = *retpar, paru, prod, rxnorm, rznor… in gqt() local
244 anorm = 0.0; in gqt()
248 anorm = PetscMax(anorm, wa2[j]); in gqt()
256 pars = parl = paru = -anorm; in gqt()