[petsc-users] quad precision solvers

[Santiago Andres Triana]

Hi petsc-users,

What solvers (either petsc-native or external packages) are available for
quad precision (i.e. __float128) computations? I am dealing with a large
(1e6 x 1e6), sparse, complex-valued, non-hermitian, and non-symmetric
generalized eigenvalue problem. So far I have been using mumps
(Krylov-Schur) with double precision but I'd like to have an idea about the
rounding off errors I might be incurring.

Thanks in advance for any comments!
Cheers, Andres.
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