Re: [petsc-users] calculating eigenvalues for the Stokes equations in 3D

Patrick, thank you very much for your comment! I'll try to use the example provided by Matt as a starting point. I've never used SLEPc before, so my knowledge of the subject is a bit insufficient, to say the least. 29.10.2019, 16:11, "Patrick Sanan" :"Solve the forward problem" means "solve the

Re: [petsc-users] calculating eigenvalues for the Stokes equations in 3D

Thank you, Matthew! I'll give it a try. 29.10.2019, 13:30, "Matthew Knepley" :On Tue, Oct 29, 2019 at 5:06 AM Dave May via petsc-users wrote:  On Tue, 29 Oct 2019 at 08:59, wrote:Hi, Dave! Thank you for your assistance. The problem is that I don't

Re: [petsc-users] calculating eigenvalues for the Stokes equations in 3D

Sorry, perhaps I stated my problem a bit inaccurately and that may have caused misunderstanding. In fact, I need to solve the forward problem, i.e. I have to find eigenvalues for the three dimensional Stokes equations, but I don't know how to do it in SLEPc. 29.10.2019, 12:05, "Dave May" :  On

Re: [petsc-users] calculating eigenvalues for the Stokes equations in 3D

On Tue, Oct 29, 2019 at 5:06 AM Dave May via petsc-users < petsc-users@mcs.anl.gov> wrote: > > > On Tue, 29 Oct 2019 at 08:59, wrote: > >> Hi, Dave! Thank you for your assistance. The problem is that I don't have >> the matrix representation for my problem. >> > > You will have to explain in

Re: [petsc-users] calculating eigenvalues for the Stokes equations in 3D

Hi, Dave! Thank you for your assistance. The problem is that I don't have the matrix representation for my problem.  I've searched on the internet for a solution, but found only some examples of solving 2D eigenvalue problems for the Stokes equations. Maybe you could help me with the matrix

[petsc-users] calculating eigenvalues for the Stokes equations in 3D

Hello!In my project I have to calculate eigenvalues for the three dimensional Stokes equations with Dirichlet boundary conditions. I would like to use SLEPc iterative solver for this purpose, but I'm not quite sure how I should set up the matrices for the solver. I would be grateful if anyone