Barry Smith writes:

...

On Dec 15, 2014, at 3:16 PM, Garth N. Wells <[email protected]> wrote:

It's possible to configure PETSc with the options

--with-64-bit-indices --download-mumps

and compile and run, but it doesn't look like the MUMPS interface supports 64 bit indices. Should the above combination throw an error at configure time?

Yes, there is commented code in the consistency check, I cannot remember why it was commented.

# if self.double and not self.scalartypes.precision.lower() == 'double': # raise RuntimeError('Cannot use '+self.name+' withOUT double precision numbers, it is not coded for this capability') # if not self.complex and self.scalartypes.scalartype.lower() == 'complex': # raise RuntimeError('Cannot use '+self.name+' with complex numbers it is not coded for this capability') # if self.libraryOptions.integerSize == 64 and self.requires32bitint: # raise RuntimeError('Cannot use '+self.name+' with 64 bit integers, it is not coded for this capability')

I think that's from when I added patches to suitesparse, mumps, and superlu for working with 64-bit ints. I wouldn't be surprised if something wasn't working. I believe, to date, only Sherry has incorporated my patches. That will learn me to try to contribute patches to academics.