optimized complex number kernel

[Craig Tanis]

Hi,

The Petsc 3 manual (pdf)mentions using an optimized fortran kernel for complex numbers, that somehow uses the same C interface.  It refers to a document on how to build these kernels, but that document does not appear to be in the tarball (or on the anl.gov website).

Furthermore, the FAQ on the website only mentions C and C++ in the section on complex number performance...

If someone could clarify what was possible, and where to look for more information, that would be great!
thanks,
Craig