Exemple #1
0
void check_ir_old_tpx_versions(t_commrec *cr, FILE *fplog,
                               t_inputrec *ir, gmx_mtop_t *mtop)
{
    /* Check required for old tpx files */
    if (IR_TWINRANGE(*ir) && ir->nstlist > 1 &&
        ir->nstcalcenergy % ir->nstlist != 0)
    {
        md_print_warn(cr, fplog, "Old tpr file with twin-range settings: modifying energy calculation and/or T/P-coupling frequencies\n");

        if (gmx_mtop_ftype_count(mtop, F_CONSTR) +
            gmx_mtop_ftype_count(mtop, F_CONSTRNC) > 0 &&
            ir->eConstrAlg == econtSHAKE)
        {
            md_print_warn(cr, fplog, "With twin-range cut-off's and SHAKE the virial and pressure are incorrect\n");
            if (ir->epc != epcNO)
            {
                gmx_fatal(FARGS, "Can not do pressure coupling with twin-range cut-off's and SHAKE");
            }
        }
        check_nst_param(fplog, cr, "nstlist", ir->nstlist,
                        "nstcalcenergy", &ir->nstcalcenergy);
        if (ir->epc != epcNO)
        {
            check_nst_param(fplog, cr, "nstlist", ir->nstlist,
                            "nstpcouple", &ir->nstpcouple);
        }
        check_nst_param(fplog, cr, "nstcalcenergy", ir->nstcalcenergy,
                        "nstenergy", &ir->nstenergy);
        check_nst_param(fplog, cr, "nstcalcenergy", ir->nstcalcenergy,
                        "nstlog", &ir->nstlog);
        if (ir->efep != efepNO)
        {
            check_nst_param(fplog, cr, "nstcalcenergy", ir->nstcalcenergy,
                            "nstdhdl", &ir->fepvals->nstdhdl);
        }
    }

    if (EI_VV(ir->eI) && IR_TWINRANGE(*ir) && ir->nstlist > 1)
    {
        gmx_fatal(FARGS, "Twin-range multiple time stepping does not work with integrator %s.", ei_names[ir->eI]);
    }
}
Exemple #2
0
int check_nstglobalcomm(FILE *fplog, t_commrec *cr,
                        int nstglobalcomm, t_inputrec *ir)
{
    if (!EI_DYNAMICS(ir->eI))
    {
        nstglobalcomm = 1;
    }

    if (nstglobalcomm == -1)
    {
        if (!(ir->nstcalcenergy > 0 ||
              ir->nstlist > 0 ||
              ir->etc != etcNO ||
              ir->epc != epcNO))
        {
            nstglobalcomm = 10;
            if (ir->nstenergy > 0 && ir->nstenergy < nstglobalcomm)
            {
                nstglobalcomm = ir->nstenergy;
            }
        }
        else
        {
            /* Ensure that we do timely global communication for
             * (possibly) each of the four following options.
             */
            nstglobalcomm = lcd4(ir->nstcalcenergy,
                                 ir->nstlist,
                                 ir->etc != etcNO ? ir->nsttcouple : 0,
                                 ir->epc != epcNO ? ir->nstpcouple : 0);
        }
    }
    else
    {
        if (ir->nstlist > 0 &&
            nstglobalcomm > ir->nstlist && nstglobalcomm % ir->nstlist != 0)
        {
            nstglobalcomm = (nstglobalcomm / ir->nstlist)*ir->nstlist;
            md_print_warn(cr, fplog, "WARNING: nstglobalcomm is larger than nstlist, but not a multiple, setting it to %d\n", nstglobalcomm);
        }
        if (ir->nstcalcenergy > 0)
        {
            check_nst_param(fplog, cr, "-gcom", nstglobalcomm,
                            "nstcalcenergy", &ir->nstcalcenergy);
        }
        if (ir->etc != etcNO && ir->nsttcouple > 0)
        {
            check_nst_param(fplog, cr, "-gcom", nstglobalcomm,
                            "nsttcouple", &ir->nsttcouple);
        }
        if (ir->epc != epcNO && ir->nstpcouple > 0)
        {
            check_nst_param(fplog, cr, "-gcom", nstglobalcomm,
                            "nstpcouple", &ir->nstpcouple);
        }

        check_nst_param(fplog, cr, "-gcom", nstglobalcomm,
                        "nstenergy", &ir->nstenergy);

        check_nst_param(fplog, cr, "-gcom", nstglobalcomm,
                        "nstlog", &ir->nstlog);
    }

    if (ir->comm_mode != ecmNO && ir->nstcomm < nstglobalcomm)
    {
        md_print_warn(cr, fplog, "WARNING: Changing nstcomm from %d to %d\n",
                      ir->nstcomm, nstglobalcomm);
        ir->nstcomm = nstglobalcomm;
    }

    return nstglobalcomm;
}
Exemple #3
0
int check_nstglobalcomm(const gmx::MDLogger &mdlog, int nstglobalcomm, t_inputrec *ir)
{
    if (!EI_DYNAMICS(ir->eI))
    {
        nstglobalcomm = 1;
    }

    if (nstglobalcomm == -1)
    {
        // Set up the default behaviour
        if (!(ir->nstcalcenergy > 0 ||
              ir->nstlist > 0 ||
              ir->etc != etcNO ||
              ir->epc != epcNO))
        {
            /* The user didn't choose the period for anything
               important, so we just make sure we can send signals and
               write output suitably. */
            nstglobalcomm = 10;
            if (ir->nstenergy > 0 && ir->nstenergy < nstglobalcomm)
            {
                nstglobalcomm = ir->nstenergy;
            }
        }
        else
        {
            /* The user has made a choice (perhaps implicitly), so we
             * ensure that we do timely intra-simulation communication
             * for (possibly) each of the four parts that care.
             *
             * TODO Does the Verlet scheme (+ DD) need any
             * communication at nstlist steps? Is the use of nstlist
             * here a leftover of the twin-range scheme? Can we remove
             * nstlist when we remove the group scheme?
             */
            nstglobalcomm = lcd4(ir->nstcalcenergy,
                                 ir->nstlist,
                                 ir->etc != etcNO ? ir->nsttcouple : 0,
                                 ir->epc != epcNO ? ir->nstpcouple : 0);
        }
    }
    else
    {
        // Check that the user's choice of mdrun -gcom will work
        if (ir->nstlist > 0 &&
            nstglobalcomm > ir->nstlist && nstglobalcomm % ir->nstlist != 0)
        {
            nstglobalcomm = (nstglobalcomm / ir->nstlist)*ir->nstlist;
            GMX_LOG(mdlog.warning).asParagraph().appendTextFormatted(
                    "WARNING: nstglobalcomm is larger than nstlist, but not a multiple, setting it to %d",
                    nstglobalcomm);
        }
        if (ir->nstcalcenergy > 0)
        {
            check_nst_param(mdlog, "-gcom", nstglobalcomm,
                            "nstcalcenergy", &ir->nstcalcenergy);
        }
        if (ir->etc != etcNO && ir->nsttcouple > 0)
        {
            check_nst_param(mdlog, "-gcom", nstglobalcomm,
                            "nsttcouple", &ir->nsttcouple);
        }
        if (ir->epc != epcNO && ir->nstpcouple > 0)
        {
            check_nst_param(mdlog, "-gcom", nstglobalcomm,
                            "nstpcouple", &ir->nstpcouple);
        }

        check_nst_param(mdlog, "-gcom", nstglobalcomm,
                        "nstenergy", &ir->nstenergy);

        check_nst_param(mdlog, "-gcom", nstglobalcomm,
                        "nstlog", &ir->nstlog);
    }

    if (ir->comm_mode != ecmNO && ir->nstcomm < nstglobalcomm)
    {
        GMX_LOG(mdlog.warning).asParagraph().appendTextFormatted(
                "WARNING: Changing nstcomm from %d to %d",
                ir->nstcomm, nstglobalcomm);
        ir->nstcomm = nstglobalcomm;
    }

    GMX_LOG(mdlog.info).appendTextFormatted(
            "Intra-simulation communication will occur every %d steps.\n", nstglobalcomm);
    return nstglobalcomm;
}