[petsc-users] petsc-3.5 quadruple precision mixed with double

[Hao Zhang]

hi, all:

I'm developing a CFD project, which all the matrix solver is PETSc based.
It works fine with double precision until I need some more, like quadruple
precision.

Ax = b is the system
input are double precision

shall I use PetscScalar instead of double?
Or is there a better way to pass double type to PETSc solver?
Or shall I convert double type to quadruple type before passing into the
solver?


I'm using PETSc 3.5.4. GCC 5.2.0 comiple with float128. I think there
should be no compiling error.
I can provide more code part if necessary. Thanks!

-- 
Hao
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