I have been getting some errors during DMRG calculations lately. I think the only two that I have seen are:
*** ERROR 1: Lanczos could not open vectors.dat
and
*** ERROR: Could not open file system.dat
I'm using cygwin to run ALPS 1.3.3. Any ideas for what is causing these errors? The calculations continue in spite of these errors. Should I be worried about these errors causing inaccuracies in my calculations?
Thanks, Justin