void init_disres(FILE *fplog, const gmx_mtop_t *mtop,
t_inputrec *ir, const t_commrec *cr,
t_fcdata *fcd, t_state *state, gmx_bool bIsREMD)
{
int fa, nmol, npair, np;
t_disresdata *dd;
history_t *hist;
gmx_mtop_ilistloop_t iloop;
t_ilist *il;
char *ptr;
dd = &(fcd->disres);
if (gmx_mtop_ftype_count(mtop, F_DISRES) == 0)
{
dd->nres = 0;
return;
}
if (fplog)
{
fprintf(fplog, "Initializing the distance restraints\n");
}
if (ir->eDisre == edrEnsemble)
{
gmx_fatal(FARGS, "Sorry, distance restraints with ensemble averaging over multiple molecules in one system are not functional in this version of GROMACS");
}
dd->dr_weighting = ir->eDisreWeighting;
dd->dr_fc = ir->dr_fc;
if (EI_DYNAMICS(ir->eI))
{
dd->dr_tau = ir->dr_tau;
}
else
{
dd->dr_tau = 0.0;
}
if (dd->dr_tau == 0.0)
{
dd->dr_bMixed = FALSE;
dd->ETerm = 0.0;
}
else
{
dd->dr_bMixed = ir->bDisreMixed;
dd->ETerm = std::exp(-(ir->delta_t/ir->dr_tau));
}
dd->ETerm1 = 1.0 - dd->ETerm;
dd->nres = 0;
dd->npair = 0;
iloop = gmx_mtop_ilistloop_init(mtop);
while (gmx_mtop_ilistloop_next(iloop, &il, &nmol))
{
np = 0;
for (fa = 0; fa < il[F_DISRES].nr; fa += 3)
{
np++;
npair = mtop->ffparams.iparams[il[F_DISRES].iatoms[fa]].disres.npair;
if (np == npair)
{
dd->nres += (ir->eDisre == edrEnsemble ? 1 : nmol)*npair;
dd->npair += nmol*npair;
np = 0;
}
}
}
if (cr && PAR(cr))
{
/* Temporary check, will be removed when disre is implemented with DD */
const char *notestr = "NOTE: atoms involved in distance restraints should be within the same domain. If this is not the case mdrun generates a fatal error. If you encounter this, use a single MPI rank (Verlet+OpenMP+GPUs work fine).";
if (MASTER(cr))
{
fprintf(stderr, "\n%s\n\n", notestr);
}
if (fplog)
{
fprintf(fplog, "%s\n", notestr);
}
if (dd->dr_tau != 0 || ir->eDisre == edrEnsemble || cr->ms != NULL ||
dd->nres != dd->npair)
{
gmx_fatal(FARGS, "Time or ensemble averaged or multiple pair distance restraints do not work (yet) with domain decomposition, use a single MPI rank%s", cr->ms ? " per simulation" : "");
}
if (ir->nstdisreout != 0)
{
if (fplog)
{
fprintf(fplog, "\nWARNING: Can not write distance restraint data to energy file with domain decomposition\n\n");
}
if (MASTER(cr))
{
fprintf(stderr, "\nWARNING: Can not write distance restraint data to energy file with domain decomposition\n");
}
ir->nstdisreout = 0;
}
}
snew(dd->rt, dd->npair);
if (dd->dr_tau != 0.0)
{
hist = &state->hist;
/* Set the "history lack" factor to 1 */
state->flags |= (1<<estDISRE_INITF);
hist->disre_initf = 1.0;
/* Allocate space for the r^-3 time averages */
state->flags |= (1<<estDISRE_RM3TAV);
hist->ndisrepairs = dd->npair;
snew(hist->disre_rm3tav, hist->ndisrepairs);
}
/* Allocate space for a copy of rm3tav,
* so we can call do_force without modifying the state.
*/
snew(dd->rm3tav, dd->npair);
/* Allocate Rt_6 and Rtav_6 consecutively in memory so they can be
* averaged over the processors in one call (in calc_disre_R_6)
*/
snew(dd->Rt_6, 2*dd->nres);
dd->Rtav_6 = &(dd->Rt_6[dd->nres]);
ptr = getenv("GMX_DISRE_ENSEMBLE_SIZE");
if (cr && cr->ms != NULL && ptr != NULL && !bIsREMD)
{
#ifdef GMX_MPI
dd->nsystems = 0;
sscanf(ptr, "%d", &dd->nsystems);
if (fplog)
{
fprintf(fplog, "Found GMX_DISRE_ENSEMBLE_SIZE set to %d systems per ensemble\n", dd->nsystems);
}
/* This check is only valid on MASTER(cr), so probably
* ensemble-averaged distance restraints are broken on more
* than one processor per simulation system. */
if (MASTER(cr))
{
check_multi_int(fplog, cr->ms, dd->nsystems,
"the number of systems per ensemble",
FALSE);
}
gmx_bcast_sim(sizeof(int), &dd->nsystems, cr);
/* We use to allow any value of nsystems which was a divisor
* of ms->nsim. But this required an extra communicator which
* was stored in t_fcdata. This pulled in mpi.h in nearly all C files.
*/
if (!(cr->ms->nsim == 1 || cr->ms->nsim == dd->nsystems))
{
gmx_fatal(FARGS, "GMX_DISRE_ENSEMBLE_SIZE (%d) is not equal to 1 or the number of systems (option -multi) %d", dd->nsystems, cr->ms->nsim);
}
if (fplog)
{
fprintf(fplog, "Our ensemble consists of systems:");
for (int i = 0; i < dd->nsystems; i++)
{
fprintf(fplog, " %d",
(cr->ms->sim/dd->nsystems)*dd->nsystems+i);
}
fprintf(fplog, "\n");
}
snew(dd->Rtl_6, dd->nres);
#endif
}
else
{
dd->nsystems = 1;
dd->Rtl_6 = dd->Rt_6;
}
if (dd->npair > 0)
{
if (fplog)
{
fprintf(fplog, "There are %d distance restraints involving %d atom pairs\n", dd->nres, dd->npair);
}
/* Have to avoid g_disre de-referencing cr blindly, mdrun not
* doing consistency checks for ensemble-averaged distance
* restraints when that's not happening, and only doing those
* checks from appropriate processes (since check_multi_int is
* too broken to check whether the communication will
* succeed...) */
if (cr && cr->ms && dd->nsystems > 1 && MASTER(cr))
{
check_multi_int(fplog, cr->ms, fcd->disres.nres,
"the number of distance restraints",
FALSE);
}
please_cite(fplog, "Tropp80a");
please_cite(fplog, "Torda89a");
}
}
int mdrunner(gmx_hw_opt_t *hw_opt,
FILE *fplog, t_commrec *cr, int nfile,
const t_filenm fnm[], const output_env_t oenv, gmx_bool bVerbose,
gmx_bool bCompact, int nstglobalcomm,
ivec ddxyz, int dd_node_order, real rdd, real rconstr,
const char *dddlb_opt, real dlb_scale,
const char *ddcsx, const char *ddcsy, const char *ddcsz,
const char *nbpu_opt, int nstlist_cmdline,
gmx_int64_t nsteps_cmdline, int nstepout, int resetstep,
int gmx_unused nmultisim, int repl_ex_nst, int repl_ex_nex,
int repl_ex_seed, real pforce, real cpt_period, real max_hours,
int imdport, unsigned long Flags)
{
gmx_bool bForceUseGPU, bTryUseGPU, bRerunMD;
t_inputrec *inputrec;
t_state *state = NULL;
matrix box;
gmx_ddbox_t ddbox = {0};
int npme_major, npme_minor;
t_nrnb *nrnb;
gmx_mtop_t *mtop = NULL;
t_mdatoms *mdatoms = NULL;
t_forcerec *fr = NULL;
t_fcdata *fcd = NULL;
real ewaldcoeff_q = 0;
real ewaldcoeff_lj = 0;
struct gmx_pme_t **pmedata = NULL;
gmx_vsite_t *vsite = NULL;
gmx_constr_t constr;
int nChargePerturbed = -1, nTypePerturbed = 0, status;
gmx_wallcycle_t wcycle;
gmx_bool bReadEkin;
gmx_walltime_accounting_t walltime_accounting = NULL;
int rc;
gmx_int64_t reset_counters;
gmx_edsam_t ed = NULL;
int nthreads_pme = 1;
int nthreads_pp = 1;
gmx_membed_t membed = NULL;
gmx_hw_info_t *hwinfo = NULL;
/* The master rank decides early on bUseGPU and broadcasts this later */
gmx_bool bUseGPU = FALSE;
/* CAUTION: threads may be started later on in this function, so
cr doesn't reflect the final parallel state right now */
snew(inputrec, 1);
snew(mtop, 1);
if (Flags & MD_APPENDFILES)
{
fplog = NULL;
}
bRerunMD = (Flags & MD_RERUN);
bForceUseGPU = (strncmp(nbpu_opt, "gpu", 3) == 0);
bTryUseGPU = (strncmp(nbpu_opt, "auto", 4) == 0) || bForceUseGPU;
/* Detect hardware, gather information. This is an operation that is
* global for this process (MPI rank). */
hwinfo = gmx_detect_hardware(fplog, cr, bTryUseGPU);
gmx_print_detected_hardware(fplog, cr, hwinfo);
if (fplog != NULL)
{
/* Print references after all software/hardware printing */
please_cite(fplog, "Abraham2015");
please_cite(fplog, "Pall2015");
please_cite(fplog, "Pronk2013");
please_cite(fplog, "Hess2008b");
please_cite(fplog, "Spoel2005a");
please_cite(fplog, "Lindahl2001a");
please_cite(fplog, "Berendsen95a");
}
snew(state, 1);
if (SIMMASTER(cr))
{
/* Read (nearly) all data required for the simulation */
read_tpx_state(ftp2fn(efTPR, nfile, fnm), inputrec, state, NULL, mtop);
if (inputrec->cutoff_scheme == ecutsVERLET)
{
/* Here the master rank decides if all ranks will use GPUs */
bUseGPU = (hwinfo->gpu_info.n_dev_compatible > 0 ||
getenv("GMX_EMULATE_GPU") != NULL);
/* TODO add GPU kernels for this and replace this check by:
* (bUseGPU && (ir->vdwtype == evdwPME &&
* ir->ljpme_combination_rule == eljpmeLB))
* update the message text and the content of nbnxn_acceleration_supported.
*/
if (bUseGPU &&
!nbnxn_gpu_acceleration_supported(fplog, cr, inputrec, bRerunMD))
{
/* Fallback message printed by nbnxn_acceleration_supported */
if (bForceUseGPU)
{
gmx_fatal(FARGS, "GPU acceleration requested, but not supported with the given input settings");
}
bUseGPU = FALSE;
}
prepare_verlet_scheme(fplog, cr,
inputrec, nstlist_cmdline, mtop, state->box,
bUseGPU);
}
else
{
if (nstlist_cmdline > 0)
{
gmx_fatal(FARGS, "Can not set nstlist with the group cut-off scheme");
}
if (hwinfo->gpu_info.n_dev_compatible > 0)
{
md_print_warn(cr, fplog,
"NOTE: GPU(s) found, but the current simulation can not use GPUs\n"
" To use a GPU, set the mdp option: cutoff-scheme = Verlet\n");
}
if (bForceUseGPU)
{
gmx_fatal(FARGS, "GPU requested, but can't be used without cutoff-scheme=Verlet");
}
#ifdef GMX_TARGET_BGQ
md_print_warn(cr, fplog,
"NOTE: There is no SIMD implementation of the group scheme kernels on\n"
" BlueGene/Q. You will observe better performance from using the\n"
" Verlet cut-off scheme.\n");
#endif
}
if (inputrec->eI == eiSD2)
{
md_print_warn(cr, fplog, "The stochastic dynamics integrator %s is deprecated, since\n"
"it is slower than integrator %s and is slightly less accurate\n"
"with constraints. Use the %s integrator.",
ei_names[inputrec->eI], ei_names[eiSD1], ei_names[eiSD1]);
}
}
/* Check and update the hardware options for internal consistency */
check_and_update_hw_opt_1(hw_opt, cr);
/* Early check for externally set process affinity. */
gmx_check_thread_affinity_set(fplog, cr,
hw_opt, hwinfo->nthreads_hw_avail, FALSE);
#ifdef GMX_THREAD_MPI
if (SIMMASTER(cr))
{
if (cr->npmenodes > 0 && hw_opt->nthreads_tmpi <= 0)
{
gmx_fatal(FARGS, "You need to explicitly specify the number of MPI threads (-ntmpi) when using separate PME ranks");
}
/* Since the master knows the cut-off scheme, update hw_opt for this.
* This is done later for normal MPI and also once more with tMPI
* for all tMPI ranks.
*/
check_and_update_hw_opt_2(hw_opt, inputrec->cutoff_scheme);
/* NOW the threads will be started: */
hw_opt->nthreads_tmpi = get_nthreads_mpi(hwinfo,
hw_opt,
inputrec, mtop,
cr, fplog, bUseGPU);
if (hw_opt->nthreads_tmpi > 1)
{
t_commrec *cr_old = cr;
/* now start the threads. */
cr = mdrunner_start_threads(hw_opt, fplog, cr_old, nfile, fnm,
oenv, bVerbose, bCompact, nstglobalcomm,
ddxyz, dd_node_order, rdd, rconstr,
dddlb_opt, dlb_scale, ddcsx, ddcsy, ddcsz,
nbpu_opt, nstlist_cmdline,
nsteps_cmdline, nstepout, resetstep, nmultisim,
repl_ex_nst, repl_ex_nex, repl_ex_seed, pforce,
cpt_period, max_hours,
Flags);
/* the main thread continues here with a new cr. We don't deallocate
the old cr because other threads may still be reading it. */
if (cr == NULL)
{
gmx_comm("Failed to spawn threads");
}
}
}
#endif
/* END OF CAUTION: cr is now reliable */
/* g_membed initialisation *
* Because we change the mtop, init_membed is called before the init_parallel *
* (in case we ever want to make it run in parallel) */
if (opt2bSet("-membed", nfile, fnm))
{
if (MASTER(cr))
{
fprintf(stderr, "Initializing membed");
}
membed = init_membed(fplog, nfile, fnm, mtop, inputrec, state, cr, &cpt_period);
}
if (PAR(cr))
{
/* now broadcast everything to the non-master nodes/threads: */
init_parallel(cr, inputrec, mtop);
/* The master rank decided on the use of GPUs,
* broadcast this information to all ranks.
*/
gmx_bcast_sim(sizeof(bUseGPU), &bUseGPU, cr);
}
if (fplog != NULL)
{
pr_inputrec(fplog, 0, "Input Parameters", inputrec, FALSE);
fprintf(fplog, "\n");
}
/* now make sure the state is initialized and propagated */
set_state_entries(state, inputrec);
/* A parallel command line option consistency check that we can
only do after any threads have started. */
if (!PAR(cr) &&
(ddxyz[XX] > 1 || ddxyz[YY] > 1 || ddxyz[ZZ] > 1 || cr->npmenodes > 0))
{
gmx_fatal(FARGS,
"The -dd or -npme option request a parallel simulation, "
#ifndef GMX_MPI
"but %s was compiled without threads or MPI enabled"
#else
#ifdef GMX_THREAD_MPI
"but the number of threads (option -nt) is 1"
#else
"but %s was not started through mpirun/mpiexec or only one rank was requested through mpirun/mpiexec"
#endif
#endif
, output_env_get_program_display_name(oenv)
);
}
if (bRerunMD &&
(EI_ENERGY_MINIMIZATION(inputrec->eI) || eiNM == inputrec->eI))
{
gmx_fatal(FARGS, "The .mdp file specified an energy mininization or normal mode algorithm, and these are not compatible with mdrun -rerun");
}
if (can_use_allvsall(inputrec, TRUE, cr, fplog) && DOMAINDECOMP(cr))
{
gmx_fatal(FARGS, "All-vs-all loops do not work with domain decomposition, use a single MPI rank");
}
if (!(EEL_PME(inputrec->coulombtype) || EVDW_PME(inputrec->vdwtype)))
{
if (cr->npmenodes > 0)
{
gmx_fatal_collective(FARGS, cr, NULL,
"PME-only ranks are requested, but the system does not use PME for electrostatics or LJ");
}
cr->npmenodes = 0;
}
if (bUseGPU && cr->npmenodes < 0)
{
/* With GPUs we don't automatically use PME-only ranks. PME ranks can
* improve performance with many threads per GPU, since our OpenMP
* scaling is bad, but it's difficult to automate the setup.
*/
cr->npmenodes = 0;
}
#ifdef GMX_FAHCORE
if (MASTER(cr))
{
fcRegisterSteps(inputrec->nsteps, inputrec->init_step);
}
#endif
/* NMR restraints must be initialized before load_checkpoint,
* since with time averaging the history is added to t_state.
* For proper consistency check we therefore need to extend
* t_state here.
* So the PME-only nodes (if present) will also initialize
* the distance restraints.
*/
snew(fcd, 1);
/* This needs to be called before read_checkpoint to extend the state */
init_disres(fplog, mtop, inputrec, cr, fcd, state, repl_ex_nst > 0);
init_orires(fplog, mtop, state->x, inputrec, cr, &(fcd->orires),
state);
if (DEFORM(*inputrec))
{
/* Store the deform reference box before reading the checkpoint */
if (SIMMASTER(cr))
{
copy_mat(state->box, box);
}
if (PAR(cr))
{
gmx_bcast(sizeof(box), box, cr);
}
/* Because we do not have the update struct available yet
* in which the reference values should be stored,
* we store them temporarily in static variables.
* This should be thread safe, since they are only written once
* and with identical values.
*/
tMPI_Thread_mutex_lock(&deform_init_box_mutex);
deform_init_init_step_tpx = inputrec->init_step;
copy_mat(box, deform_init_box_tpx);
tMPI_Thread_mutex_unlock(&deform_init_box_mutex);
}
if (opt2bSet("-cpi", nfile, fnm))
{
/* Check if checkpoint file exists before doing continuation.
* This way we can use identical input options for the first and subsequent runs...
*/
if (gmx_fexist_master(opt2fn_master("-cpi", nfile, fnm, cr), cr) )
{
load_checkpoint(opt2fn_master("-cpi", nfile, fnm, cr), &fplog,
cr, ddxyz,
inputrec, state, &bReadEkin,
(Flags & MD_APPENDFILES),
(Flags & MD_APPENDFILESSET));
if (bReadEkin)
{
Flags |= MD_READ_EKIN;
}
}
}
if (MASTER(cr) && (Flags & MD_APPENDFILES))
{
gmx_log_open(ftp2fn(efLOG, nfile, fnm), cr,
Flags, &fplog);
}
/* override nsteps with value from cmdline */
override_nsteps_cmdline(fplog, nsteps_cmdline, inputrec, cr);
if (SIMMASTER(cr))
{
copy_mat(state->box, box);
}
if (PAR(cr))
{
gmx_bcast(sizeof(box), box, cr);
}
/* Essential dynamics */
if (opt2bSet("-ei", nfile, fnm))
{
/* Open input and output files, allocate space for ED data structure */
ed = ed_open(mtop->natoms, &state->edsamstate, nfile, fnm, Flags, oenv, cr);
}
if (PAR(cr) && !(EI_TPI(inputrec->eI) ||
inputrec->eI == eiNM))
{
cr->dd = init_domain_decomposition(fplog, cr, Flags, ddxyz, rdd, rconstr,
dddlb_opt, dlb_scale,
ddcsx, ddcsy, ddcsz,
mtop, inputrec,
box, state->x,
&ddbox, &npme_major, &npme_minor);
make_dd_communicators(fplog, cr, dd_node_order);
/* Set overallocation to avoid frequent reallocation of arrays */
set_over_alloc_dd(TRUE);
}
else
{
/* PME, if used, is done on all nodes with 1D decomposition */
cr->npmenodes = 0;
cr->duty = (DUTY_PP | DUTY_PME);
npme_major = 1;
npme_minor = 1;
if (inputrec->ePBC == epbcSCREW)
{
gmx_fatal(FARGS,
"pbc=%s is only implemented with domain decomposition",
epbc_names[inputrec->ePBC]);
}
}
if (PAR(cr))
{
/* After possible communicator splitting in make_dd_communicators.
* we can set up the intra/inter node communication.
*/
gmx_setup_nodecomm(fplog, cr);
}
/* Initialize per-physical-node MPI process/thread ID and counters. */
gmx_init_intranode_counters(cr);
#ifdef GMX_MPI
if (MULTISIM(cr))
{
md_print_info(cr, fplog,
"This is simulation %d out of %d running as a composite GROMACS\n"
"multi-simulation job. Setup for this simulation:\n\n",
cr->ms->sim, cr->ms->nsim);
}
md_print_info(cr, fplog, "Using %d MPI %s\n",
cr->nnodes,
#ifdef GMX_THREAD_MPI
cr->nnodes == 1 ? "thread" : "threads"
#else
cr->nnodes == 1 ? "process" : "processes"
#endif
);
fflush(stderr);
#endif
/* Check and update hw_opt for the cut-off scheme */
check_and_update_hw_opt_2(hw_opt, inputrec->cutoff_scheme);
/* Check and update hw_opt for the number of MPI ranks */
check_and_update_hw_opt_3(hw_opt);
gmx_omp_nthreads_init(fplog, cr,
hwinfo->nthreads_hw_avail,
hw_opt->nthreads_omp,
hw_opt->nthreads_omp_pme,
(cr->duty & DUTY_PP) == 0,
inputrec->cutoff_scheme == ecutsVERLET);
#ifndef NDEBUG
if (integrator[inputrec->eI].func != do_tpi &&
inputrec->cutoff_scheme == ecutsVERLET)
{
gmx_feenableexcept();
}
#endif
if (bUseGPU)
{
/* Select GPU id's to use */
gmx_select_gpu_ids(fplog, cr, &hwinfo->gpu_info, bForceUseGPU,
&hw_opt->gpu_opt);
}
else
{
/* Ignore (potentially) manually selected GPUs */
hw_opt->gpu_opt.n_dev_use = 0;
}
/* check consistency across ranks of things like SIMD
* support and number of GPUs selected */
gmx_check_hw_runconf_consistency(fplog, hwinfo, cr, hw_opt, bUseGPU);
/* Now that we know the setup is consistent, check for efficiency */
check_resource_division_efficiency(hwinfo, hw_opt, Flags & MD_NTOMPSET,
cr, fplog);
if (DOMAINDECOMP(cr))
{
/* When we share GPUs over ranks, we need to know this for the DLB */
dd_setup_dlb_resource_sharing(cr, hwinfo, hw_opt);
}
/* getting number of PP/PME threads
PME: env variable should be read only on one node to make sure it is
identical everywhere;
*/
/* TODO nthreads_pp is only used for pinning threads.
* This is a temporary solution until we have a hw topology library.
*/
nthreads_pp = gmx_omp_nthreads_get(emntNonbonded);
nthreads_pme = gmx_omp_nthreads_get(emntPME);
wcycle = wallcycle_init(fplog, resetstep, cr, nthreads_pp, nthreads_pme);
if (PAR(cr))
{
/* Master synchronizes its value of reset_counters with all nodes
* including PME only nodes */
reset_counters = wcycle_get_reset_counters(wcycle);
gmx_bcast_sim(sizeof(reset_counters), &reset_counters, cr);
wcycle_set_reset_counters(wcycle, reset_counters);
}
snew(nrnb, 1);
if (cr->duty & DUTY_PP)
{
bcast_state(cr, state);
/* Initiate forcerecord */
fr = mk_forcerec();
fr->hwinfo = hwinfo;
fr->gpu_opt = &hw_opt->gpu_opt;
init_forcerec(fplog, oenv, fr, fcd, inputrec, mtop, cr, box,
opt2fn("-table", nfile, fnm),
opt2fn("-tabletf", nfile, fnm),
opt2fn("-tablep", nfile, fnm),
opt2fn("-tableb", nfile, fnm),
nbpu_opt,
FALSE,
pforce);
/* version for PCA_NOT_READ_NODE (see md.c) */
/*init_forcerec(fplog,fr,fcd,inputrec,mtop,cr,box,FALSE,
"nofile","nofile","nofile","nofile",FALSE,pforce);
*/
/* Initialize QM-MM */
if (fr->bQMMM)
{
init_QMMMrec(cr, mtop, inputrec, fr);
}
/* Initialize the mdatoms structure.
* mdatoms is not filled with atom data,
* as this can not be done now with domain decomposition.
*/
mdatoms = init_mdatoms(fplog, mtop, inputrec->efep != efepNO);
/* Initialize the virtual site communication */
vsite = init_vsite(mtop, cr, FALSE);
calc_shifts(box, fr->shift_vec);
/* With periodic molecules the charge groups should be whole at start up
* and the virtual sites should not be far from their proper positions.
*/
if (!inputrec->bContinuation && MASTER(cr) &&
!(inputrec->ePBC != epbcNONE && inputrec->bPeriodicMols))
{
/* Make molecules whole at start of run */
if (fr->ePBC != epbcNONE)
{
do_pbc_first_mtop(fplog, inputrec->ePBC, box, mtop, state->x);
}
if (vsite)
{
/* Correct initial vsite positions are required
* for the initial distribution in the domain decomposition
* and for the initial shell prediction.
*/
construct_vsites_mtop(vsite, mtop, state->x);
}
}
if (EEL_PME(fr->eeltype) || EVDW_PME(fr->vdwtype))
{
ewaldcoeff_q = fr->ewaldcoeff_q;
ewaldcoeff_lj = fr->ewaldcoeff_lj;
pmedata = &fr->pmedata;
}
else
{
pmedata = NULL;
}
}
else
{
/* This is a PME only node */
/* We don't need the state */
done_state(state);
ewaldcoeff_q = calc_ewaldcoeff_q(inputrec->rcoulomb, inputrec->ewald_rtol);
ewaldcoeff_lj = calc_ewaldcoeff_lj(inputrec->rvdw, inputrec->ewald_rtol_lj);
snew(pmedata, 1);
}
if (hw_opt->thread_affinity != threadaffOFF)
{
/* Before setting affinity, check whether the affinity has changed
* - which indicates that probably the OpenMP library has changed it
* since we first checked).
*/
gmx_check_thread_affinity_set(fplog, cr,
hw_opt, hwinfo->nthreads_hw_avail, TRUE);
/* Set the CPU affinity */
gmx_set_thread_affinity(fplog, cr, hw_opt, hwinfo);
}
/* Initiate PME if necessary,
* either on all nodes or on dedicated PME nodes only. */
if (EEL_PME(inputrec->coulombtype) || EVDW_PME(inputrec->vdwtype))
{
if (mdatoms)
{
nChargePerturbed = mdatoms->nChargePerturbed;
if (EVDW_PME(inputrec->vdwtype))
{
nTypePerturbed = mdatoms->nTypePerturbed;
}
}
if (cr->npmenodes > 0)
{
/* The PME only nodes need to know nChargePerturbed(FEP on Q) and nTypePerturbed(FEP on LJ)*/
gmx_bcast_sim(sizeof(nChargePerturbed), &nChargePerturbed, cr);
gmx_bcast_sim(sizeof(nTypePerturbed), &nTypePerturbed, cr);
}
if (cr->duty & DUTY_PME)
{
status = gmx_pme_init(pmedata, cr, npme_major, npme_minor, inputrec,
mtop ? mtop->natoms : 0, nChargePerturbed, nTypePerturbed,
(Flags & MD_REPRODUCIBLE), nthreads_pme);
if (status != 0)
{
gmx_fatal(FARGS, "Error %d initializing PME", status);
}
}
}
if (integrator[inputrec->eI].func == do_md)
{
/* Turn on signal handling on all nodes */
/*
* (A user signal from the PME nodes (if any)
* is communicated to the PP nodes.
*/
signal_handler_install();
}
if (cr->duty & DUTY_PP)
{
/* Assumes uniform use of the number of OpenMP threads */
walltime_accounting = walltime_accounting_init(gmx_omp_nthreads_get(emntDefault));
if (inputrec->bPull)
{
/* Initialize pull code */
inputrec->pull_work =
init_pull(fplog, inputrec->pull, inputrec, nfile, fnm,
mtop, cr, oenv, inputrec->fepvals->init_lambda,
EI_DYNAMICS(inputrec->eI) && MASTER(cr), Flags);
}
if (inputrec->bRot)
{
/* Initialize enforced rotation code */
init_rot(fplog, inputrec, nfile, fnm, cr, state->x, box, mtop, oenv,
bVerbose, Flags);
}
if (inputrec->eSwapCoords != eswapNO)
{
/* Initialize ion swapping code */
init_swapcoords(fplog, bVerbose, inputrec, opt2fn_master("-swap", nfile, fnm, cr),
mtop, state->x, state->box, &state->swapstate, cr, oenv, Flags);
}
constr = init_constraints(fplog, mtop, inputrec, ed, state, cr);
if (DOMAINDECOMP(cr))
{
GMX_RELEASE_ASSERT(fr, "fr was NULL while cr->duty was DUTY_PP");
dd_init_bondeds(fplog, cr->dd, mtop, vsite, inputrec,
Flags & MD_DDBONDCHECK, fr->cginfo_mb);
set_dd_parameters(fplog, cr->dd, dlb_scale, inputrec, &ddbox);
setup_dd_grid(fplog, cr->dd);
}
/* Now do whatever the user wants us to do (how flexible...) */
integrator[inputrec->eI].func(fplog, cr, nfile, fnm,
oenv, bVerbose, bCompact,
nstglobalcomm,
vsite, constr,
nstepout, inputrec, mtop,
fcd, state,
mdatoms, nrnb, wcycle, ed, fr,
repl_ex_nst, repl_ex_nex, repl_ex_seed,
membed,
cpt_period, max_hours,
imdport,
Flags,
walltime_accounting);
if (inputrec->bPull)
{
finish_pull(inputrec->pull_work);
}
if (inputrec->bRot)
{
finish_rot(inputrec->rot);
}
}
else
{
GMX_RELEASE_ASSERT(pmedata, "pmedata was NULL while cr->duty was not DUTY_PP");
/* do PME only */
walltime_accounting = walltime_accounting_init(gmx_omp_nthreads_get(emntPME));
gmx_pmeonly(*pmedata, cr, nrnb, wcycle, walltime_accounting, ewaldcoeff_q, ewaldcoeff_lj, inputrec);
}
wallcycle_stop(wcycle, ewcRUN);
/* Finish up, write some stuff
* if rerunMD, don't write last frame again
*/
finish_run(fplog, cr,
inputrec, nrnb, wcycle, walltime_accounting,
fr ? fr->nbv : NULL,
EI_DYNAMICS(inputrec->eI) && !MULTISIM(cr));
/* Free GPU memory and context */
free_gpu_resources(fr, cr, &hwinfo->gpu_info, fr ? fr->gpu_opt : NULL);
if (opt2bSet("-membed", nfile, fnm))
{
sfree(membed);
}
gmx_hardware_info_free(hwinfo);
/* Does what it says */
print_date_and_time(fplog, cr->nodeid, "Finished mdrun", gmx_gettime());
walltime_accounting_destroy(walltime_accounting);
/* PLUMED */
if(plumedswitch){
plumed_finalize(plumedmain);
}
/* END PLUMED */
/* Close logfile already here if we were appending to it */
if (MASTER(cr) && (Flags & MD_APPENDFILES))
{
gmx_log_close(fplog);
}
rc = (int)gmx_get_stop_condition();
done_ed(&ed);
#ifdef GMX_THREAD_MPI
/* we need to join all threads. The sub-threads join when they
exit this function, but the master thread needs to be told to
wait for that. */
if (PAR(cr) && MASTER(cr))
{
tMPI_Finalize();
}
#endif
return rc;
}