static gmx_bool gmx_next_frame(t_trxstatus *status, t_trxframe *fr)
{
gmx_trr_header_t sh;
gmx_bool bOK, bRet;
bRet = FALSE;
if (gmx_trr_read_frame_header(status->fio, &sh, &bOK))
{
fr->bDouble = sh.bDouble;
fr->natoms = sh.natoms;
fr->bStep = TRUE;
fr->step = sh.step;
fr->bTime = TRUE;
fr->time = sh.t;
fr->bLambda = TRUE;
fr->bFepState = TRUE;
fr->lambda = sh.lambda;
fr->bBox = sh.box_size > 0;
if (status->flags & (TRX_READ_X | TRX_NEED_X))
{
if (fr->x == nullptr)
{
snew(fr->x, sh.natoms);
}
fr->bX = sh.x_size > 0;
}
if (status->flags & (TRX_READ_V | TRX_NEED_V))
{
if (fr->v == nullptr)
{
snew(fr->v, sh.natoms);
}
fr->bV = sh.v_size > 0;
}
if (status->flags & (TRX_READ_F | TRX_NEED_F))
{
if (fr->f == nullptr)
{
snew(fr->f, sh.natoms);
}
fr->bF = sh.f_size > 0;
}
if (gmx_trr_read_frame_data(status->fio, &sh, fr->box, fr->x, fr->v, fr->f))
{
bRet = TRUE;
}
else
{
fr->not_ok = DATA_NOT_OK;
}
}
else
if (!bOK)
{
fr->not_ok = HEADER_NOT_OK;
}
return bRet;
}
int gmx_convert_tpr(int argc, char *argv[])
{
const char *desc[] = {
"[THISMODULE] can edit run input files in four ways.[PAR]",
"[BB]1.[bb] by modifying the number of steps in a run input file",
"with options [TT]-extend[tt], [TT]-until[tt] or [TT]-nsteps[tt]",
"(nsteps=-1 means unlimited number of steps)[PAR]",
"[BB]2.[bb] (OBSOLETE) by creating a run input file",
"for a continuation run when your simulation has crashed due to e.g.",
"a full disk, or by making a continuation run input file.",
"This option is obsolete, since mdrun now writes and reads",
"checkpoint files.",
"[BB]Note[bb] that a frame with coordinates and velocities is needed.",
"When pressure and/or Nose-Hoover temperature coupling is used",
"an energy file can be supplied to get an exact continuation",
"of the original run.[PAR]",
"[BB]3.[bb] by creating a [REF].tpx[ref] file for a subset of your original",
"tpx file, which is useful when you want to remove the solvent from",
"your [REF].tpx[ref] file, or when you want to make e.g. a pure C[GRK]alpha[grk] [REF].tpx[ref] file.",
"Note that you may need to use [TT]-nsteps -1[tt] (or similar) to get",
"this to work.",
"[BB]WARNING: this [REF].tpx[ref] file is not fully functional[bb].[PAR]",
"[BB]4.[bb] by setting the charges of a specified group",
"to zero. This is useful when doing free energy estimates",
"using the LIE (Linear Interaction Energy) method."
};
const char *top_fn, *frame_fn;
struct t_fileio *fp;
ener_file_t fp_ener = NULL;
gmx_trr_header_t head;
int i;
gmx_int64_t nsteps_req, run_step, frame;
double run_t, state_t;
gmx_bool bOK, bNsteps, bExtend, bUntil, bTime, bTraj;
gmx_bool bFrame, bUse, bSel, bNeedEner, bReadEner, bScanEner, bFepState;
gmx_mtop_t mtop;
t_atoms atoms;
t_inputrec *ir;
t_state state;
rvec *newx = NULL, *newv = NULL, *tmpx, *tmpv;
matrix newbox;
int gnx;
char *grpname;
atom_id *index = NULL;
int nre;
gmx_enxnm_t *enm = NULL;
t_enxframe *fr_ener = NULL;
char buf[200], buf2[200];
gmx_output_env_t *oenv;
t_filenm fnm[] = {
{ efTPR, NULL, NULL, ffREAD },
{ efTRN, "-f", NULL, ffOPTRD },
{ efEDR, "-e", NULL, ffOPTRD },
{ efNDX, NULL, NULL, ffOPTRD },
{ efTPR, "-o", "tprout", ffWRITE }
};
#define NFILE asize(fnm)
/* Command line options */
static int nsteps_req_int = 0;
static real start_t = -1.0, extend_t = 0.0, until_t = 0.0;
static int init_fep_state = 0;
static gmx_bool bContinuation = TRUE, bZeroQ = FALSE, bVel = TRUE;
static t_pargs pa[] = {
{ "-extend", FALSE, etREAL, {&extend_t},
"Extend runtime by this amount (ps)" },
{ "-until", FALSE, etREAL, {&until_t},
"Extend runtime until this ending time (ps)" },
{ "-nsteps", FALSE, etINT, {&nsteps_req_int},
"Change the number of steps" },
{ "-time", FALSE, etREAL, {&start_t},
"Continue from frame at this time (ps) instead of the last frame" },
{ "-zeroq", FALSE, etBOOL, {&bZeroQ},
"Set the charges of a group (from the index) to zero" },
{ "-vel", FALSE, etBOOL, {&bVel},
"Require velocities from trajectory" },
{ "-cont", FALSE, etBOOL, {&bContinuation},
"For exact continuation, the constraints should not be applied before the first step" },
{ "-init_fep_state", FALSE, etINT, {&init_fep_state},
"fep state to initialize from" },
};
/* Parse the command line */
if (!parse_common_args(&argc, argv, 0, NFILE, fnm, asize(pa), pa,
asize(desc), desc, 0, NULL, &oenv))
{
return 0;
}
/* Convert int to gmx_int64_t */
nsteps_req = nsteps_req_int;
bNsteps = opt2parg_bSet("-nsteps", asize(pa), pa);
bExtend = opt2parg_bSet("-extend", asize(pa), pa);
bUntil = opt2parg_bSet("-until", asize(pa), pa);
bFepState = opt2parg_bSet("-init_fep_state", asize(pa), pa);
bTime = opt2parg_bSet("-time", asize(pa), pa);
bTraj = (opt2bSet("-f", NFILE, fnm) || bTime);
top_fn = ftp2fn(efTPR, NFILE, fnm);
fprintf(stderr, "Reading toplogy and stuff from %s\n", top_fn);
snew(ir, 1);
read_tpx_state(top_fn, ir, &state, &mtop);
run_step = ir->init_step;
run_t = ir->init_step*ir->delta_t + ir->init_t;
if (!EI_STATE_VELOCITY(ir->eI))
{
bVel = FALSE;
}
if (bTraj)
{
fprintf(stderr, "\n"
"NOTE: Reading the state from trajectory is an obsolete feature of gmx convert-tpr.\n"
" Continuation should be done by loading a checkpoint file with mdrun -cpi\n"
" This guarantees that all state variables are transferred.\n"
" gmx convert-tpr is now only useful for increasing nsteps,\n"
" but even that can often be avoided by using mdrun -maxh\n"
"\n");
if (ir->bContinuation != bContinuation)
{
fprintf(stderr, "Modifying ir->bContinuation to %s\n",
bool_names[bContinuation]);
}
ir->bContinuation = bContinuation;
bNeedEner = (ir->epc == epcPARRINELLORAHMAN || ir->etc == etcNOSEHOOVER);
bReadEner = (bNeedEner && ftp2bSet(efEDR, NFILE, fnm));
bScanEner = (bReadEner && !bTime);
if (ir->epc != epcNO || EI_SD(ir->eI) || ir->eI == eiBD)
{
fprintf(stderr, "NOTE: The simulation uses pressure coupling and/or stochastic dynamics.\n"
"gmx convert-tpr can not provide binary identical continuation.\n"
"If you want that, supply a checkpoint file to mdrun\n\n");
}
if (EI_SD(ir->eI) || ir->eI == eiBD)
{
fprintf(stderr, "\nChanging ld-seed from %" GMX_PRId64 " ", ir->ld_seed);
ir->ld_seed = (gmx_int64_t)gmx_rng_make_seed();
fprintf(stderr, "to %" GMX_PRId64 "\n\n", ir->ld_seed);
}
frame_fn = ftp2fn(efTRN, NFILE, fnm);
if (fn2ftp(frame_fn) == efCPT)
{
int sim_part;
fprintf(stderr,
"\nREADING STATE FROM CHECKPOINT %s...\n\n",
frame_fn);
read_checkpoint_state(frame_fn, &sim_part,
&run_step, &run_t, &state);
}
else
{
fprintf(stderr,
"\nREADING COORDS, VELS AND BOX FROM TRAJECTORY %s...\n\n",
frame_fn);
fp = gmx_trr_open(frame_fn, "r");
if (bScanEner)
{
fp_ener = open_enx(ftp2fn(efEDR, NFILE, fnm), "r");
do_enxnms(fp_ener, &nre, &enm);
snew(fr_ener, 1);
fr_ener->t = -1e-12;
}
/* Now scan until the last set of x and v (step == 0)
* or the ones at step step.
*/
bFrame = TRUE;
frame = 0;
while (bFrame)
{
bFrame = gmx_trr_read_frame_header(fp, &head, &bOK);
if (bOK && frame == 0)
{
if (mtop.natoms != head.natoms)
{
gmx_fatal(FARGS, "Number of atoms in Topology (%d) "
"is not the same as in Trajectory (%d)\n",
mtop.natoms, head.natoms);
}
snew(newx, head.natoms);
snew(newv, head.natoms);
}
bFrame = bFrame && bOK;
if (bFrame)
{
bOK = gmx_trr_read_frame_data(fp, &head, newbox, newx, newv, NULL);
}
bFrame = bFrame && bOK;
bUse = FALSE;
if (bFrame &&
(head.x_size) && (head.v_size || !bVel))
{
bUse = TRUE;
if (bScanEner)
{
/* Read until the energy time is >= the trajectory time */
while (fr_ener->t < head.t && do_enx(fp_ener, fr_ener))
{
;
}
bUse = (fr_ener->t == head.t);
}
if (bUse)
{
tmpx = newx;
newx = state.x;
state.x = tmpx;
tmpv = newv;
newv = state.v;
state.v = tmpv;
run_t = head.t;
run_step = head.step;
state.fep_state = head.fep_state;
state.lambda[efptFEP] = head.lambda;
copy_mat(newbox, state.box);
}
}
if (bFrame || !bOK)
{
sprintf(buf, "\r%s %s frame %s%s: step %s%s time %s",
"%s", "%s", "%6", GMX_PRId64, "%6", GMX_PRId64, " %8.3f");
fprintf(stderr, buf,
bUse ? "Read " : "Skipped", ftp2ext(fn2ftp(frame_fn)),
frame, head.step, head.t);
frame++;
if (bTime && (head.t >= start_t))
{
bFrame = FALSE;
}
}
}
if (bScanEner)
{
close_enx(fp_ener);
free_enxframe(fr_ener);
free_enxnms(nre, enm);
}
gmx_trr_close(fp);
fprintf(stderr, "\n");
if (!bOK)
{
fprintf(stderr, "%s frame %s (step %s, time %g) is incomplete\n",
ftp2ext(fn2ftp(frame_fn)), gmx_step_str(frame-1, buf2),
gmx_step_str(head.step, buf), head.t);
}
fprintf(stderr, "\nUsing frame of step %s time %g\n",
gmx_step_str(run_step, buf), run_t);
if (bNeedEner)
{
if (bReadEner)
{
get_enx_state(ftp2fn(efEDR, NFILE, fnm), run_t, &mtop.groups, ir, &state);
}
else
{
fprintf(stderr, "\nWARNING: The simulation uses %s temperature and/or %s pressure coupling,\n"
" the continuation will only be exact when an energy file is supplied\n\n",
ETCOUPLTYPE(etcNOSEHOOVER),
EPCOUPLTYPE(epcPARRINELLORAHMAN));
}
}
if (bFepState)
{
ir->fepvals->init_fep_state = init_fep_state;
}
}
}
if (bNsteps)
{
fprintf(stderr, "Setting nsteps to %s\n", gmx_step_str(nsteps_req, buf));
ir->nsteps = nsteps_req;
}
else
{
/* Determine total number of steps remaining */
if (bExtend)
{
ir->nsteps = ir->nsteps - (run_step - ir->init_step) + (gmx_int64_t)(extend_t/ir->delta_t + 0.5);
printf("Extending remaining runtime of by %g ps (now %s steps)\n",
extend_t, gmx_step_str(ir->nsteps, buf));
}
else if (bUntil)
{
printf("nsteps = %s, run_step = %s, current_t = %g, until = %g\n",
gmx_step_str(ir->nsteps, buf),
gmx_step_str(run_step, buf2),
run_t, until_t);
ir->nsteps = (gmx_int64_t)((until_t - run_t)/ir->delta_t + 0.5);
printf("Extending remaining runtime until %g ps (now %s steps)\n",
until_t, gmx_step_str(ir->nsteps, buf));
}
else
{
ir->nsteps -= run_step - ir->init_step;
/* Print message */
printf("%s steps (%g ps) remaining from first run.\n",
gmx_step_str(ir->nsteps, buf), ir->nsteps*ir->delta_t);
}
}
if (bNsteps || bZeroQ || (ir->nsteps > 0))
{
ir->init_step = run_step;
if (ftp2bSet(efNDX, NFILE, fnm) ||
!(bNsteps || bExtend || bUntil || bTraj))
{
atoms = gmx_mtop_global_atoms(&mtop);
get_index(&atoms, ftp2fn_null(efNDX, NFILE, fnm), 1,
&gnx, &index, &grpname);
if (!bZeroQ)
{
bSel = (gnx != state.natoms);
for (i = 0; ((i < gnx) && (!bSel)); i++)
{
bSel = (i != index[i]);
}
}
else
{
bSel = FALSE;
}
if (bSel)
{
fprintf(stderr, "Will write subset %s of original tpx containing %d "
"atoms\n", grpname, gnx);
reduce_topology_x(gnx, index, &mtop, state.x, state.v);
state.natoms = gnx;
}
else if (bZeroQ)
{
zeroq(index, &mtop);
fprintf(stderr, "Zero-ing charges for group %s\n", grpname);
}
else
{
fprintf(stderr, "Will write full tpx file (no selection)\n");
}
}
state_t = ir->init_t + ir->init_step*ir->delta_t;
sprintf(buf, "Writing statusfile with starting step %s%s and length %s%s steps...\n", "%10", GMX_PRId64, "%10", GMX_PRId64);
fprintf(stderr, buf, ir->init_step, ir->nsteps);
fprintf(stderr, " time %10.3f and length %10.3f ps\n",
state_t, ir->nsteps*ir->delta_t);
write_tpx_state(opt2fn("-o", NFILE, fnm), ir, &state, &mtop);
}
else
{
printf("You've simulated long enough. Not writing tpr file\n");
}
return 0;
}
void read_eigenvectors(const char *file, int *natoms, gmx_bool *bFit,
rvec **xref, gmx_bool *bDMR,
rvec **xav, gmx_bool *bDMA,
int *nvec, int **eignr,
rvec ***eigvec, real **eigval)
{
gmx_trr_header_t head;
int i, snew_size;
struct t_fileio *status;
rvec *x;
matrix box;
gmx_bool bOK;
*bDMR = FALSE;
/* read (reference (t=-1) and) average (t=0) structure */
status = gmx_trr_open(file, "r");
gmx_trr_read_frame_header(status, &head, &bOK);
*natoms = head.natoms;
snew(*xav, *natoms);
gmx_trr_read_frame_data(status, &head, box, *xav, NULL, NULL);
if ((head.t >= -1.1) && (head.t <= -0.9))
{
snew(*xref, *natoms);
for (i = 0; i < *natoms; i++)
{
copy_rvec((*xav)[i], (*xref)[i]);
}
*bDMR = (head.lambda > 0.5);
*bFit = (head.lambda > -0.5);
if (*bFit)
{
fprintf(stderr, "Read %smass weighted reference structure with %d atoms from %s\n", *bDMR ? "" : "non ", *natoms, file);
}
else
{
fprintf(stderr, "Eigenvectors in %s were determined without fitting\n", file);
sfree(*xref);
*xref = NULL;
}
gmx_trr_read_frame_header(status, &head, &bOK);
gmx_trr_read_frame_data(status, &head, box, *xav, NULL, NULL);
}
else
{
*bFit = TRUE;
*xref = NULL;
}
*bDMA = (head.lambda > 0.5);
if ((head.t <= -0.01) || (head.t >= 0.01))
{
fprintf(stderr, "WARNING: %s does not start with t=0, which should be the "
"average structure. This might not be a eigenvector file. "
"Some things might go wrong.\n",
file);
}
else
{
fprintf(stderr,
"Read %smass weighted average/minimum structure with %d atoms from %s\n",
*bDMA ? "" : "non ", *natoms, file);
}
snew(x, *natoms);
snew_size = 10;
snew(*eignr, snew_size);
snew(*eigval, snew_size);
snew(*eigvec, snew_size);
*nvec = 0;
while (gmx_trr_read_frame_header(status, &head, &bOK))
{
gmx_trr_read_frame_data(status, &head, box, x, NULL, NULL);
if (*nvec >= snew_size)
{
snew_size += 10;
srenew(*eignr, snew_size);
srenew(*eigval, snew_size);
srenew(*eigvec, snew_size);
}
i = head.step;
(*eigval)[*nvec] = head.t;
(*eignr)[*nvec] = i-1;
snew((*eigvec)[*nvec], *natoms);
for (i = 0; i < *natoms; i++)
{
copy_rvec(x[i], (*eigvec)[*nvec][i]);
}
(*nvec)++;
}
sfree(x);
gmx_trr_close(status);
fprintf(stderr, "Read %d eigenvectors (for %d atoms)\n\n", *nvec, *natoms);
}
static void list_trr(const char *fn)
{
t_fileio *fpread;
int nframe, indent;
char buf[256];
rvec *x, *v, *f;
matrix box;
gmx_trr_header_t trrheader;
gmx_bool bOK;
fpread = gmx_trr_open(fn, "r");
nframe = 0;
while (gmx_trr_read_frame_header(fpread, &trrheader, &bOK))
{
snew(x, trrheader.natoms);
snew(v, trrheader.natoms);
snew(f, trrheader.natoms);
if (gmx_trr_read_frame_data(fpread, &trrheader,
trrheader.box_size ? box : NULL,
trrheader.x_size ? x : NULL,
trrheader.v_size ? v : NULL,
trrheader.f_size ? f : NULL))
{
sprintf(buf, "%s frame %d", fn, nframe);
indent = 0;
indent = pr_title(stdout, indent, buf);
pr_indent(stdout, indent);
fprintf(stdout, "natoms=%10d step=%10d time=%12.7e lambda=%10g\n",
trrheader.natoms, trrheader.step, trrheader.t, trrheader.lambda);
if (trrheader.box_size)
{
pr_rvecs(stdout, indent, "box", box, DIM);
}
if (trrheader.x_size)
{
pr_rvecs(stdout, indent, "x", x, trrheader.natoms);
}
if (trrheader.v_size)
{
pr_rvecs(stdout, indent, "v", v, trrheader.natoms);
}
if (trrheader.f_size)
{
pr_rvecs(stdout, indent, "f", f, trrheader.natoms);
}
}
else
{
fprintf(stderr, "\nWARNING: Incomplete frame: nr %d, t=%g\n",
nframe, trrheader.t);
}
sfree(x);
sfree(v);
sfree(f);
nframe++;
}
if (!bOK)
{
fprintf(stderr, "\nWARNING: Incomplete frame header: nr %d, t=%g\n",
nframe, trrheader.t);
}
gmx_trr_close(fpread);
}
