Hello PETSC-ers, I am a research faculty at Univ of Pittsburgh trying to use PETSC/SLEPC to obtain the diagonalization of a large matrix using Lanczos or Davidson method.
The matrix is a 3 dimensional dense matrix with a total of 216000 elements. After looking into some of the examples in PETSC as well SLEPC implementations it seems like most of the implementations are with 2 dimensional matrices. So, I was wondering if it is possible to express a 3 dimensional matrix object compatible to PETSC so that the SLEPC API could be used to obtain diagonalization. Any suggestions or pointers to documentation or examples would be of great help. Best, -- Ketan
