Re: [petsc-users] Some Problems about SNES EX19.c

2018-11-04 Thread Smith, Barry F. via petsc-users
> On Nov 4, 2018, at 8:45 AM, Yingjie Wu via petsc-users > wrote: > > Dear Petsc developer: > Hi, > Recently, I am very interested in the ex19 example in SNES, which uses NGS > method to solve the non-linear equations, which may be the method I need to > use in the future. I have some doubts

Re: [petsc-users] Some Problems about SNES EX19.c

2018-11-04 Thread Jed Brown via petsc-users
Yingjie Wu via petsc-users writes: > Dear Petsc developer: > Hi, > Recently, I am very interested in the ex19 example in SNES, which uses NGS > method to solve the non-linear equations, which may be the method I need to > use in the future. I have some doubts about the program. > 1. > > 82: typed

Re: [petsc-users] Solution "jumps" after setting timestep

2018-11-04 Thread Moritz.Huck--- via petsc-users
Hi, I using the basic adaptor. If I let the adaptor handle everything it does not oscillates. I don’t mean setting the timestep at the start (which does not produces the problem), I need to set during runtime between two steps. Best Regards, Moritz -Ursprüngliche Nachricht- Von: Con