Re: [Libmesh-users] Linesearch algorithms

2012-08-21 Thread Subramanya Gautam Sadasiva
wanted to know. - Original Message - From: "Paul T. Bauman" To: "Subramanya Gautam Sadasiva" Cc: "." Sent: Tuesday, August 21, 2012 7:42:00 AM Subject: Re: [Libmesh-users] Linesearch algorithms On Tue, Aug 21, 2012 at 4:52 AM, Subramanya Gautam Sadasiva

Re: [Libmesh-users] Linesearch algorithms

2012-08-21 Thread Subramanya Gautam Sadasiva
wanted to know. - Original Message - From: "Paul T. Bauman" To: "Subramanya Gautam Sadasiva" Cc: "." Sent: Tuesday, August 21, 2012 7:42:00 AM Subject: Re: [Libmesh-users] Linesearch algorithms On Tue, Aug 21, 2012 at 4:52 AM, Subramanya Gautam Sadasiva

Re: [Libmesh-users] Linesearch algorithms

2012-08-21 Thread Paul T. Bauman
On Tue, Aug 21, 2012 at 4:52 AM, Subramanya Gautam Sadasiva < ssada...@purdue.edu> wrote: > Does anybody know where the theory for these line search methods is > documented? > For line search (and optimization-based methods in general), I really like Nocedal and Wright http://www.amazon.com/Numer

[Libmesh-users] Linesearch algorithms

2012-08-21 Thread Subramanya Gautam Sadasiva
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