Dear all, I am wondering if there is an official statement regarding compiling Gromacs with gcc5.2.0 (or any gcc from the 5.x branch). Is it recommended or not? Should we expect improvements? I have tried quickly some small benchmarks (with Gromacs 4.6.3 and Gromacs 5.1) and found improvement on ns/day between 1 and 3% (with respect to gcc4.8.5).
Also, during compilation I get several warnings such as: In file included from /usr/local/openmpi-gnu/include/mpi.h:253:0, from /home2/ncheron/Programs/gromacs-5.1/src/gromacs/utility/gmxmpi.h:59, from /home2/ncheron/Programs/gromacs-5.1/src/gromacs/legacyheaders/types/commrec.h:45, from /home2/ncheron/Programs/gromacs-5.1/src/gromacs/legacyheaders/gmx_ga2la.h:40, from /home2/ncheron/Programs/gromacs-5.1/src/gromacs/domdec/domdec_constraints.cpp:55: /usr/local/openmpi-gnu/include/mpi_portable_platform.h:374:34: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix] _STRINGIFY(__GNUC__)"."_STRINGIFY(__GNUC_MINOR__)"."_STRINGIFY(__GNUC_PATCHLEVEL__) I don't think it is relevant and I am not worried about it, but just wanted to check with you. Thank you. Nicolas -- Gromacs Users mailing list * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting! * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists * For (un)subscribe requests visit https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or send a mail to gmx-users-requ...@gromacs.org.