Hi, Does anyone know of any references to the line search algorithms used by PETSC. I was trying to get a cahn hilliard equation solution going (using the traditional c0 element approach). I noticed that while the cubic and quadratic line searches are monotonic - they tend to diverge, while the basic line search is not monotonic but it works. Does anybody know where the theory for these line search methods is documented? Also does anybody know why I observe this?
I also would like to know how to set petsc options from within libmesh code. Thanks Subramanya ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
