The original version of the code was available under GPL and was included
in Chroma. I made modifications here for tmLQCD
and I believe the code is available fro use in tmLQCD. I am not very
familiar with the details of GPL. Is this what you meant?

On Sat, Mar 23, 2013 at 3:36 PM, Carsten Urbach <notifications@github.com>wrote:

> In solver/eigcg.c:
>
> > @@ -0,0 +1,631 @@
> > +/***********************************************************************
> > + * Copyright (C) 2008,2009,2010,2011,2012
> > + * Andreas Stathopoulos, Kostas Orginos, Abdou M. Abdel-Rehim
>
> was this code available under GPL? And can we use it in tmLQCD then?
>
> —
> Reply to this email directly or view it on GitHub<https://github.com/etmc/tmLQCD/pull/246/files#r3501236>
> .
>