en Copyright 2025 Java http://opengrok.kc2vjw.com:8080/history/petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c#756fffe11fc37c302bf6f777119cb63762d4cb5a Merge branch 'fix-SNESLineSearchBisection-maxit' into 'main'fix SNESLineSearchBisection wrongfully exiting when reaching maximum number of iterationsSee merge request petsc/petsc!8880 List of files: /petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c Mon, 26 Jan 2026 22:17:21 +0000 Satish Balay <balay@mcs.anl.gov> http://opengrok.kc2vjw.com:8080/history/petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c#1e1ea152bc0251c9fee07b20d595288add9aa6bf fix SNESLineSearchBisection wrongfully exiting when reaching maximum number of iterations List of files: /petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c Wed, 03 Dec 2025 17:57:54 +0000 Jonas Heinzmann <jheinzmann@ethz.ch> http://opengrok.kc2vjw.com:8080/history/petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c#bd89dbf26d8a5efecb980364933175da61864cd7 Merge branch 'barry/2025-12-24/improve-snes-domain-error-handling' into 'main'Improve the propagation of function domain error handling in SNES, especially...See merge request petsc/petsc!8914 List of files: /petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c Wed, 07 Jan 2026 17:10:44 +0000 Satish Balay <balay@mcs.anl.gov> http://opengrok.kc2vjw.com:8080/history/petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c#76c6338944e4871467ad7a763eee41b62845c2b0 Improve the propagation of function domain error handling in SNES, especially in the line search routines.Due to the object layering of SNESLineSearch under SNES there is some code duplication include both SNESLineSearchReason and SNESConvergedReason and SNESCheckFunctionNorm() and SNESLineSearchCheckFunctionNorm() and Jacobian friendsReported-by: david.knezevic@akselos.com List of files: /petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c Wed, 24 Dec 2025 15:15:19 +0000 Barry Smith <bsmith@mcs.anl.gov> http://opengrok.kc2vjw.com:8080/history/petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c#e0f7661ef47ee0a77f8da1ab85987b8efeada20d Merge branch 'sneslinesearch-improvements' into 'main'SNESLinesearch: Minor improvementsSee merge request petsc/petsc!8630 List of files: /petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c Wed, 27 Aug 2025 02:18:34 +0000 Satish Balay <balay@mcs.anl.gov> http://opengrok.kc2vjw.com:8080/history/petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c#a99ef635ef3fb31080710bc8e0dbbde292199c98 SNESLinesearch: Minor improvements- add missing configuration options in the documentation of the line searches (some of the available options were not listed), and consistently list their respective default values- add proper convergence criteria for the secant method in the L2 line search based on ltol and atol (otherwise, the secant method is mostly running for the maximum number of iterations)- fix a small bug in the CP line search, where steptol * lambda was used to check for convergence based on the change of lambda instead of the ltol parameter- rename sneslinesearch->maxstep to sneslinesearch->maxlambda in the options database to be consistent with its purpose in the algorithms- rename SNESLineSearchL2 to SNESLineSearchSecant to better represent its underlying approach List of files: /petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c Wed, 27 Aug 2025 02:18:34 +0000 Jonas Heinzmann <jheinzmann@ethz.ch> http://opengrok.kc2vjw.com:8080/history/petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c#c59835d02e78e47c66bbf6f0a7d8d58c36aab673 Merge branch 'jonas-heinzmann/fix-sneslinesearch-vi-directionalderivative' into 'main'SNESLineSearch: fix computation of directional derivative in the case of the VI solversSee merge request petsc/petsc!8137 List of files: /petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c Mon, 17 Feb 2025 19:49:49 +0000 Satish Balay <balay@mcs.anl.gov> http://opengrok.kc2vjw.com:8080/history/petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c#d5def619400c53ceafc7498a3d382ce0d1e29f7d SNESLineSearch: fix computation of directional derivative in the case of the VI solversThe two line search algorithms bisection and critical point work with the directional derivative, assuming that F(x) = grad G(x).However, when working with the variational inequality solvers, the constraints were not correctly considered when computing the directional derivative.This commit introduces a new linesearch->ops->vidirderiv function which correctly considers the constraints (similar to linesearch->ops->viproject and linesearch->ops->vinorm). List of files: /petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c Mon, 17 Feb 2025 19:49:49 +0000 Jonas Heinzmann <jheinzmann@ethz.ch> http://opengrok.kc2vjw.com:8080/history/petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c#0b3826d4d2998fc0a4fa12e0ff4ee854a4862f68 Merge branch 'jonas-heinzmann/sneslinesearch-addbisection' into 'main'SNESLineSearch: add bisection line searchSee merge request petsc/petsc!8028 List of files: /petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c Wed, 04 Dec 2024 18:52:56 +0000 Satish Balay <balay@mcs.anl.gov> http://opengrok.kc2vjw.com:8080/history/petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c#b9d635d7b5c3ee5434768b771e5fbf76581fe7bc SNESLineSearch: add bisection line searchAdd new bisection line search for SNES, which proves to be useful for highly non-linear problems. The line search assumes that F(X) = grad G(X) and seeks to find the root in the directional derivative through bisection.(tested in snes/tutorials/ex99) List of files: /petsc/src/snes/linesearch/impls/bisection/linesearchbisection.c Sat, 23 Nov 2024 15:25:02 +0000 Jonas Heinzmann <jheinzmann@ethz.ch>