63   PetscReal          fnorm, xnorm, ynorm, gnorm;  in SNESLineSearchApply_BT()  local
145         gnorm = fnorm;  in SNESLineSearchApply_BT()
146         PetscCall((*linesearch->ops->vinorm)(snes, G, W, &gnorm));  in SNESLineSearchApply_BT()
148         PetscCall(VecNorm(G, NORM_2, &gnorm));  in SNESLineSearchApply_BT()
150       g = 0.5 * PetscSqr(gnorm);  in SNESLineSearchApply_BT()
164 … PetscCall(PetscInfo(snes, "Initial fnorm %14.12e gnorm %14.12e\n", (double)fnorm, (double)gnorm));  in SNESLineSearchApply_BT()
169 … "    Line search: Using full step: fnorm %14.12e gnorm %14.12e\n", (double)fnorm, (double)gnorm));  in SNESLineSearchApply_BT()
209           gnorm = fnorm;  in SNESLineSearchApply_BT()
210           PetscCall((*linesearch->ops->vinorm)(snes, G, W, &gnorm));  in SNESLineSearchApply_BT()
212           PetscCall(VecNorm(G, NORM_2, &gnorm));  in SNESLineSearchApply_BT()
214         SNESLineSearchCheckFunctionDomainError(snes, linesearch, gnorm);  in SNESLineSearchApply_BT()
215         g = 0.5 * PetscSqr(gnorm);  in SNESLineSearchApply_BT()
225 …ViewerASCIIPrintf(monitor, "    Line search: gnorm after quadratic fit %14.12e\n", (double)gnorm));  in SNESLineSearchApply_BT()
245 …%18.16e, lambda=%18.16e, initial slope=%18.16e\n", (double)fnorm, (double)gnorm, (double)ynorm, (d…  in SNESLineSearchApply_BT()
277 …%18.16e, lambda=%18.16e, initial slope=%18.16e\n", (double)fnorm, (double)gnorm, (double)ynorm, (d…  in SNESLineSearchApply_BT()
288             gnorm = fnorm;  in SNESLineSearchApply_BT()
289             PetscCall((*linesearch->ops->vinorm)(snes, G, W, &gnorm));  in SNESLineSearchApply_BT()
291             PetscCall(VecNorm(G, NORM_2, &gnorm));  in SNESLineSearchApply_BT()
293           SNESLineSearchCheckFunctionDomainError(snes, linesearch, gnorm);  in SNESLineSearchApply_BT()
294           g = 0.5 * PetscSqr(gnorm);  in SNESLineSearchApply_BT()
300 …nt gnorm %14.12e lambda=%18.16e\n", ordStr[linesearch->order - 1], (double)gnorm, (double)lambda));  in SNESLineSearchApply_BT()
311 …nt gnorm %12.12e lambda=%18.16e\n", ordStr[linesearch->order - 1], (double)gnorm, (double)lambda));  in SNESLineSearchApply_BT()
332       gnorm = fnorm;  in SNESLineSearchApply_BT()
333       PetscCall((*linesearch->ops->vinorm)(snes, G, W, &gnorm));  in SNESLineSearchApply_BT()
335       PetscCall(VecNorm(G, NORM_2, &gnorm));  in SNESLineSearchApply_BT()
337     SNESLineSearchCheckFunctionDomainError(snes, linesearch, gnorm);  in SNESLineSearchApply_BT()
345   PetscCall(SNESLineSearchSetNorms(linesearch, xnorm, gnorm, ynorm));  in SNESLineSearchApply_BT()