Last March, an issue running lambda.x was posted on the forum.here is the direct URL link, http://qe-forge.org/pipermail/pw_forum/2013-March/101264.html, reporting various NaN errors generated during an 4.3.2 Example 7 script adapted for graphene. Was this issue ever resolved? My personal experience with NaNs has been that they usually reflect compiler issues, especially wrt IEEE standards governing floating point formats. However, I don't see anything unusual in the lambda.f90 code.
Paul Michael Grant, PhD Senior Life Fellow, American Physical Society Fellow, Institute of Physics, United Kingdom Staff Associate, Jet Propulsion Laboratory, NASA (2011) Visiting Scholar, Applied Physics, Stanford (2005-2008) EPRI Science Fellow (Retired) IBM Research Staff Member/Manager Emeritus Principal, W2AGZ Technologies <mailto:w2agz at w2agz.com> w2agz at w2agz.com <http://www.w2agz.com/> http://www.w2agz.com -------------- next part -------------- An HTML attachment was scrubbed... URL: http://pwscf.org/pipermail/pw_forum/attachments/20140226/30b0f177/attachment.html