Yes using trjcat. It returns a magic number error. In message <44C4CA58.5080209@xray.bmc.uu.se> Discussion list for GROMACS users writes: > Samantha Kaye wrote: > > Hi, > > > > Whenever I try to make a continuation file for my simulation I can generate a tpr file using tpbconv but I can't cat the ouput files together afterwards. > > > > did you use trjcat ? > > > When I run ">gmxcheck -f closed1122_unrest.trr" on the first trr file I get the following: > > > > > > Checking file closed1122_unrest.trr > > trn version: GMX_trn_file (single precision) > > Reading frame 0 time 0.000 > > # Atoms 189376 > > Reading frame 910 time 4550.000 ------------------------------------------------------- > > Program gmxcheck, VERSION 3.3 > > Source code file: trnio.c, line: 66 > > > > File input/output error: > > Can not determine precision of trn file > > ------------------------------------------------------- > > > > > > I've tried generating the continuation file from an earlier frame but have the same problem always at frame 910. > > > > The file is over 2gb but as tpbconv runs without a problem I don't think that's the problem. > > > > Any suggestions? > > > > Thanks > > > > > -- > David. > ________________________________________________________________________ > David van der Spoel, PhD, Assoc. Prof., Molecular Biophysics group, > Dept. of Cell and Molecular Biology, Uppsala University. > Husargatan 3, Box 596, 75124 Uppsala, Sweden > phone: 46 18 471 4205 fax: 46 18 511 755 > spoel@xray.bmc.uu.se spoel@gromacs.org http://folding.bmc.uu.se > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > _______________________________________________ > gmx-users mailing list gmx-users@gromacs.org > http://www.gromacs.org/mailman/listinfo/gmx-users > Please don't post (un)subscribe requests to the list. Use the > www interface or send it to gmx-users-request@gromacs.org. > Can't post? Read http://www.gromacs.org/mailing_lists/users.php > -- Samantha Kaye Structural Bioinformatics and Computational Biochemistry Group University of Oxford