I have two 50000 x 50000 binary matrices A and B for solving A*x=lambda*B*x eigenvalue problem. These matrices are sparse. I am trying to solve using PETSC and SLEPC. My memory requirement shoots off like more than 200 GB of RAM !
I used mpirun in 16 cores and 96GB RAM with swap of 130GB.
Is there a way to solve this problem.? Am I doing something wrong ? Kindly let me know.