[petsc-users] questions about contour integration solvers in SLEPc

Michael Povolotskyi mpovolot at purdue.edu
Mon Dec 2 11:47:46 CST 2013


Dear Developers of SLEPc,
I have found that SLEPc has now two eigenvalues solver that are based on 
contour integration, rather than on Krylov space method.
They are EPSFEAST and EPSCISS.

I'm eager to try these solvers in my code both for Hermitian and 
non-Hermitian problems.
My questions are as follows:
1) Are there any tutorial examples for those solvers?
2) How is the algorithm of EPSCISS is different from EPSFEAST algorithm?
Is it similar to one from 
http://prb.aps.org/abstract/PRB/v86/i7/e075103, where FEAST is extended 
to the non-Hermitian matrices?
3) Will I be able to configure SLEPC to use FEAST algorithm from MKL?

Thank you,
Michael.

-- 
Michael Povolotskyi, PhD
Research Assistant Professor
Network for Computational Nanotechnology
207 S Martin Jischke Drive
Purdue University, DLR, room 441-10
West Lafayette, Indiana 47907

phone: +1-765-494-9396
fax: +1-765-496-6026



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