The f2cblaslapack is generated by the script bin/maint/toclapack.sh from BLAS/LAPACK source code. Jose and his students fixed up the support for __float128; presumably it could be extended to __complex128 also with some tweaking. Barry On Aug 22, 2012, at 6:52 AM, Jed Brown <[email protected]> wrote:

GNU __float128 does not work with complex. There is __complex128 (why they chose to implement this way, I do not understand), but we have not written that support yet. You can "watch" this issue to get notified when it's done

https://bitbucket.org/petsc/petsc-dev/issue/6/support-for-complex-with-128-b...

Barry, is just doing text substitution to f2cblaslapack the right approach there?

On Wed, Aug 22, 2012 at 3:38 AM, Alexander Grayver <[email protected]>wrote:

...

Hello petsc team,

I've tried to compile petsc-3.3-p2 with __float128 precision and complex scalar type. The configure stage went through, but during make there are errors. See attached make.log

Any ideas?

-- Regards, Alexander