[petsc-users] Question on maximum size of SLEPc matrices

[Jose E. Roman]

On 07/04/2014, Christopher Poulton wrote:

> Hey SLEPc team,
> 
> I want to create a 3D Maxwell's Equation eigenmode solver and your library seems to be a good option because it supports complex numbers. How large can your matrices be and still solve in a decent amount of time? Memory is not a problem on my computer (144GB).
> 
> Thanks,
> Chris Poulton - CU Boulder

If matrices are sparse, you can probably solve problems with millions of degrees of freedom, provided that you do not request too many eigenpairs.

Jose