Maybe some more info: The mdrun ends up with following declaration:
Reading file cyclohexane_minzd.tpr, VERSION 4.0.5 (double precision) Segmentation fault So it seems something goes wrong either writing the .tpr file or reading it. I also did not use double precision before with 4.0.2, but I suppose that should not be the issue here. Regards, Henri -- ----------------------------------- Dr. Henri K. Ervasti Delft University of Technology Process & Energy Laboratory Leeghwaterstraat 44 k. 0.30 2628CA Delft Netherlands e-mail: h.k.erva...@tudelft.nl phone: +31 (0)15 27 86662 fax: +31 (0)15 27 82460 -- gmx-users mailing list gmx-users@gromacs.org http://lists.gromacs.org/mailman/listinfo/gmx-users Please search the archive at http://www.gromacs.org/search before posting! Please don't post (un)subscribe requests to the list. Use the www interface or send it to gmx-users-requ...@gromacs.org. Can't post? Read http://www.gromacs.org/mailing_lists/users.php