[petsc-users] Eigenvalue solver method in Petsc

[Sanjay Govindjee]

For our FEA code we have used PETSc to solve mechanical eigen problems using
subspace as well as parallel-ARPACK.  It works well and is not that hard 
to program.
Though we sort of cheat and have each processor solve the (same) small 
dense problem
at the end.  So there is a bit of waste in the simple implementation -- 
but it is minor
for your average mechanical problem.

On 3/17/13 9:37 AM, Sonya Blade wrote:
> Dear All,
>
> I'm pretty new to the Petsc library, before going into installation hassle,
> I'd like to know is it possible solve common eigenvalue problems mainly
> encountered in solid mechanics engineering such as Subspace iteration,Jacobi
> method, simultaneous iteration, Stodola etc..with Petsc.
>
> Mainly those problems comes in stiffness and mass matrices form, where in general
> they are symmetric and can be huge in size e.g 5000x5000.
>
> If it's possible to solve those type of problems with Petsc then is it
> trouble free the installation of library with Gnu GCC and gfortran on Win64?
>
> Your help will be appreciated,
>
> REgards,