On Fri, 11 Apr 2008, Jed Brown wrote:
> On Fri 2008-04-11 16:47, [EMAIL PROTECTED] wrote:
>> I ran ex3 using the runtime flags and I got the following error message:
>
> You'll have to add something like
>
> KSPSetInitialGuessNonzero(ksp, PETSC_FALSE);
>
> before the solve if you want to use pre
On Fri 2008-04-11 16:47, [EMAIL PROTECTED] wrote:
> I ran ex3 using the runtime flags and I got the following error message:
You'll have to add something like
KSPSetInitialGuessNonzero(ksp, PETSC_FALSE);
before the solve if you want to use preonly. I was unaware that libmesh sets
this by defaul
On Thu 2008-04-10 18:01, [EMAIL PROTECTED] wrote:
> I appreciate your answer but in fact I want to define the solver inside
> the code since I have different solvers for different systems.
> So I rewrite the question:
> How to call a direct solver with something like
> 'linear_solver->set_solver_ty
I appreciate your answer but in fact I want to define the solver inside
the code since I have different solvers for different systems.
So I rewrite the question:
How to call a direct solver with something like
'linear_solver->set_solver_type'?
Thanks
Paulo
> On Thu 2008-04-10 14:09, [EMAIL PROTECT
Great answer, thanks Jed.
-J
On Thu, Apr 10, 2008 at 7:27 AM, Jed Brown <[EMAIL PROTECTED]> wrote:
> On Thu 2008-04-10 14:09, [EMAIL PROTECTED] wrote:
> > Hi,
> > How can I use a direct solver to solve a linear system of equations?
> > Thanks in advance,
> > Paulo
>
> You can do this entirel
On Thu 2008-04-10 14:09, [EMAIL PROTECTED] wrote:
> Hi,
> How can I use a direct solver to solve a linear system of equations?
> Thanks in advance,
> Paulo
You can do this entirely with PETSc command line arguments. For instance
-ksp_type preonly -pc_type lu
will solve the system using LU decom
Hi,
How can I use a direct solver to solve a linear system of equations?
Thanks in advance,
Paulo
-
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