[EMAIL PROTECTED] writes:
> >>> I want to solve a pde equation involving a parameter to be incremented
> >>> sucessively. After obtaining a solution I want to use it as a guess
> >>> for
> >>> the system to be solved next. How can I implement this?
> >
> >> I'm not an expert on Libmesh, bu
>>> I'm not an expert on Libmesh, but I recall that PETSC allows one to
>>> set the iinitial guess. If PETSc can be accessed through the libmesh
>>> interface then it should be possible quite easily.
>>
>> Indeed it is -- this is in fact the default behavior in libMesh. Whatever
>> is in the Syst
>>> I want to solve a pde equation involving a parameter to be incremented
>>> sucessively. After obtaining a solution I want to use it as a guess
>>> for
>>> the system to be solved next. How can I implement this?
>
>> I'm not an expert on Libmesh, but I recall that PETSC allows one to
>> set t
On Thu, 21 Feb 2008, Roy Stogner wrote:
>> initial guess. You should be able to verify this by calling
>>
>> equation_systems.solve();
>> equation_systems.solve();
>>
>> And seeing that the second solve converges in 0 iterations.
>
> Wait, doesn't that depend on your tolerance settings? If yo
On Thu, 21 Feb 2008, Benjamin Kirk wrote:
>>> I want to solve a pde equation involving a parameter to be incremented
>>> sucessively. After obtaining a solution I want to use it as a guess for
>>> the system to be solved next. How can I implement this?
>
>> I'm not an expert on Libmesh, but I
>> I want to solve a pde equation involving a parameter to be incremented
>> sucessively. After obtaining a solution I want to use it as a guess for
>> the system to be solved next. How can I implement this?
> I'm not an expert on Libmesh, but I recall that PETSC allows one to
> set the iinitia
On Thu, 21 Feb 2008, Nachiket Gokhale wrote:
> I'm not an expert on Libmesh, but I recall that PETSC allows one to
> set the iinitial guess. If PETSc can be accessed through the libmesh
> interface then it should be possible quite easily.
The behavior in libMesh should (in this case) be practica
I'm not an expert on Libmesh, but I recall that PETSC allows one to
set the iinitial guess. If PETSc can be accessed through the libmesh
interface then it should be possible quite easily.
I'll wait for the experts to give an authoritative answer. :-)
-Nachiket
On Thu, Feb 21, 2008 at 1:52 PM, <
Hi,
I want to solve a pde equation involving a parameter to be incremented
sucessively. After obtaining a solution I want to use it as a guess for
the system to be solved next. How can I implement this?
Thanks
Paulo
-
This
