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root/group/trunk/mdtools/interface_implementation/SimSetup.cpp
Revision: 205
Committed: Wed Dec 11 20:39:41 2002 UTC (21 years, 6 months ago) by mmeineke
File size: 22557 byte(s)
Log Message:
finished adding in the code to divide and set up the atoms and such across all of the processors.

File Contents

# Content
1 #include <cstdlib>
2 #include <iostream>
3 #include <cmath>
4
5 #include "SimSetup.hpp"
6 #include "parse_me.h"
7 #include "LRI.hpp"
8 #include "Integrator.hpp"
9 #include "simError.h"
10
11 #ifdef IS_MPI
12 #include "mpiBASS.h"
13 #include "bassDiag.hpp"
14 #endif
15
16 SimSetup::SimSetup(){
17 stamps = new MakeStamps();
18 globals = new Globals();
19
20 #ifdef IS_MPI
21 strcpy( checkPointMsg, "SimSetup creation successful" );
22 MPIcheckPoint();
23 #endif // IS_MPI
24 }
25
26 SimSetup::~SimSetup(){
27 delete stamps;
28 delete globals;
29 }
30
31 void SimSetup::parseFile( char* fileName ){
32
33 #ifdef IS_MPI
34 if( worldRank == 0 ){
35 #endif // is_mpi
36
37 inFileName = fileName;
38 set_interface_stamps( stamps, globals );
39
40 #ifdef IS_MPI
41 mpiEventInit();
42 #endif
43
44 yacc_BASS( fileName );
45
46 #ifdef IS_MPI
47 throwMPIEvent(NULL);
48 }
49 else receiveParse();
50 #endif
51
52 }
53
54 #ifdef IS_MPI
55 void SimSetup::receiveParse(void){
56
57 set_interface_stamps( stamps, globals );
58 mpiEventInit();
59 MPIcheckPoint();
60 mpiEventLoop();
61
62 }
63
64
65 void SimSetup::testMe(void){
66 bassDiag* dumpMe = new bassDiag(globals,stamps);
67 dumpMe->dumpStamps();
68 delete dumpMe;
69 }
70 #endif
71
72 void SimSetup::createSim( void ){
73
74 MakeStamps *the_stamps;
75 Globals* the_globals;
76 int i, j;
77
78 // get the stamps and globals;
79 the_stamps = stamps;
80 the_globals = globals;
81
82 // set the easy ones first
83 simnfo->target_temp = the_globals->getTargetTemp();
84 simnfo->dt = the_globals->getDt();
85 simnfo->run_time = the_globals->getRunTime();
86
87 // get the ones we know are there, yet still may need some work.
88 n_components = the_globals->getNComponents();
89 strcpy( force_field, the_globals->getForceField() );
90 strcpy( ensemble, the_globals->getEnsemble() );
91
92 if( !strcmp( force_field, "TraPPE" ) ) the_ff = new TraPPEFF();
93 else if( !strcmp( force_field, "DipoleTest" ) ) the_ff = new DipoleTestFF();
94 else if( !strcmp( force_field, "TraPPE_Ex" ) ) the_ff = new TraPPE_ExFF();
95 else{
96 sprintf( painCave.errMsg,
97 "SimSetup Error. Unrecognized force field -> %s\n",
98 force_field );
99 painCave.isFatal = 1;
100 simError();
101 }
102
103 #ifdef IS_MPI
104 strcpy( checkPointMsg, "ForceField creation successful" );
105 MPIcheckPoint();
106 #endif // is_mpi
107
108 // get the components and calculate the tot_nMol and indvidual n_mol
109 the_components = the_globals->getComponents();
110 components_nmol = new int[n_components];
111 comp_stamps = new MoleculeStamp*[n_components];
112
113 if( !the_globals->haveNMol() ){
114 // we don't have the total number of molecules, so we assume it is
115 // given in each component
116
117 tot_nmol = 0;
118 for( i=0; i<n_components; i++ ){
119
120 if( !the_components[i]->haveNMol() ){
121 // we have a problem
122 sprintf( painCave.errMsg,
123 "SimSetup Error. No global NMol or component NMol"
124 " given. Cannot calculate the number of atoms.\n" );
125 painCave.isFatal = 1;
126 simError();
127 }
128
129 tot_nmol += the_components[i]->getNMol();
130 components_nmol[i] = the_components[i]->getNMol();
131 }
132 }
133 else{
134 sprintf( painCave.errMsg,
135 "SimSetup error.\n"
136 "\tSorry, the ability to specify total"
137 " nMols and then give molfractions in the components\n"
138 "\tis not currently supported."
139 " Please give nMol in the components.\n" );
140 painCave.isFatal = 1;
141 simError();
142
143
144 // tot_nmol = the_globals->getNMol();
145
146 // //we have the total number of molecules, now we check for molfractions
147 // for( i=0; i<n_components; i++ ){
148
149 // if( !the_components[i]->haveMolFraction() ){
150
151 // if( !the_components[i]->haveNMol() ){
152 // //we have a problem
153 // std::cerr << "SimSetup error. Neither molFraction nor "
154 // << " nMol was given in component
155
156 }
157
158 #ifdef IS_MPI
159 strcpy( checkPointMsg, "Have the number of components" );
160 MPIcheckPoint();
161 #endif // is_mpi
162
163 // make an array of molecule stamps that match the components used.
164 // also extract the used stamps out into a separate linked list
165
166 simnfo->nComponents = n_components;
167 simnfo->componentsNmol = components_nmol;
168 simnfo->compStamps = comp_stamps;
169 simnfo->headStamp = new LinkedMolStamp();
170
171 char* id;
172 LinkedMolStamp* headStamp = simnfo->headStamp;
173 LinkedMolStamp* currentStamp = NULL;
174 for( i=0; i<n_components; i++ ){
175
176 id = the_components[i]->getType();
177 comp_stamps[i] = NULL;
178
179 // check to make sure the component isn't already in the list
180
181 comp_stamps[i] = headStamp->match( id );
182 if( comp_stamps[i] == NULL ){
183
184 // extract the component from the list;
185
186 currentStamp = the_stamps->extractMolStamp( id );
187 if( currentStamp == NULL ){
188 sprintf( painCave.errMsg,
189 "SimSetup error: Component \"%s\" was not found in the "
190 "list of declared molecules\n"
191 id );
192 painCave.isFatal = 1;
193 simError();
194 }
195
196 headStamp->add( currentStamp );
197 comp_stamps[i] = headStamp->match( id );
198 }
199 }
200
201 #ifdef IS_MPI
202 strcpy( checkPointMsg, "Component stamps successfully extracted\n" );
203 MPIcheckPoint();
204 #endif // is_mpi
205
206
207
208
209 // caclulate the number of atoms, bonds, bends and torsions
210
211 tot_atoms = 0;
212 tot_bonds = 0;
213 tot_bends = 0;
214 tot_torsions = 0;
215 for( i=0; i<n_components; i++ ){
216
217 tot_atoms += components_nmol[i] * comp_stamps[i]->getNAtoms();
218 tot_bonds += components_nmol[i] * comp_stamps[i]->getNBonds();
219 tot_bends += components_nmol[i] * comp_stamps[i]->getNBends();
220 tot_torsions += components_nmol[i] * comp_stamps[i]->getNTorsions();
221 }
222
223 tot_SRI = tot_bonds + tot_bends + tot_torsions;
224
225 simnfo->n_atoms = tot_atoms;
226 simnfo->n_bonds = tot_bonds;
227 simnfo->n_bends = tot_bends;
228 simnfo->n_torsions = tot_torsions;
229 simnfo->n_SRI = tot_SRI;
230 simnfo->n_mol = tot_nmol;
231
232
233 #ifdef IS_MPI
234
235 // divide the molecules among processors here.
236
237 mpiSimulation* mpiSim = new mpiSimulation( simnfo );
238
239 mpiSim->divideLabor();
240
241 // set up the local variables
242
243 int localMol, allMol;
244 int local_atoms, local_bonds, local_bends, local_torsions, local_SRI;
245
246 allMol = 0;
247 localMol = 0;
248 local_atoms = 0;
249 local_bonds = 0;
250 local_bends = 0;
251 local_torsions = 0;
252 for( i=0; i<n_components; i++ ){
253
254 for( j=0; j<components_nmol[i]; j++ ){
255
256 if( mpiSim->getMyMolStart() <= allMol &&
257 allMol <= mpiSim->getMyMolEnd() ){
258
259 local_atoms += comp_stamps[i]->getNAtoms();
260 local_bonds += comp_stamps[i]->getNBonds();
261 local_bends += comp_stamps[i]->getNBends();
262 local_torsions += comp_stamps[i]->getNTorsions();
263 localMol++;
264 }
265 allMol++;
266 }
267 }
268 local_SRI = local_bonds + local_bends + local_torsions;
269
270
271 simnfo->n_atoms = mpiSim->getMyNlocal();
272
273 if( local_atoms != simnfo->n_atoms ){
274 sprintf( painCave.errMsg,
275 "SimSetup error: mpiSim's localAtom (%d) and SimSetup's"
276 " localAtom (%d) are note equal.\n",
277 simnfo->n_atoms,
278 local_atoms );
279 painCave.isFatal = 1;
280 simError();
281 }
282
283 simnfo->n_bonds = local_bonds;
284 simnfo->n_bends = local_bends;
285 simnfo->n_torsions = local_torsions;
286 simnfo->n_SRI = local_SRI;
287 simnfo->n_mol = localMol;
288
289 strcpy( checkPointMsg, "Passed nlocal consistency check." );
290 MPIcheckPoint();
291
292
293 #endif // is_mpi
294
295
296 // create the atom and short range interaction arrays
297
298 Atom::createArrays(simnfo->n_atoms);
299 the_atoms = new Atom*[simnfo->n_atoms];
300 the_molecules = new Molecule[simnfo->n_mol];
301
302
303 if( simnfo->n_SRI ){
304 the_sris = new SRI*[simnfo->n_SRI];
305 the_excludes = new ex_pair[simnfo->n_SRI];
306 }
307
308 // set the arrays into the SimInfo object
309
310 simnfo->atoms = the_atoms;
311 simnfo->sr_interactions = the_sris;
312 simnfo->n_exclude = tot_SRI;
313 simnfo->excludes = the_excludes;
314
315
316 // initialize the arrays
317
318 the_ff->setSimInfo( simnfo );
319
320 makeAtoms();
321
322 if( tot_bonds ){
323 makeBonds();
324 }
325
326 if( tot_bends ){
327 makeBends();
328 }
329
330 if( tot_torsions ){
331 makeTorsions();
332 }
333
334
335 // get some of the tricky things that may still be in the globals
336
337 if( simnfo->n_dipoles ){
338
339 if( !the_globals->haveRRF() ){
340 sprintf( painCave.errMsg,
341 "SimSetup Error, system has dipoles, but no rRF was set.\n");
342 painCave.isFatal = 1;
343 simError();
344 }
345 if( !the_globals->haveDielectric() ){
346 sprintf( painCave.errMsg,
347 "SimSetup Error, system has dipoles, but no"
348 " dielectric was set.\n" );
349 painCave.isFatal = 1;
350 simError();
351 }
352
353 simnfo->rRF = the_globals->getRRF();
354 simnfo->dielectric = the_globals->getDielectric();
355 }
356
357 #ifdef IS_MPI
358 strcpy( checkPointMsg, "rRf and dielectric check out" );
359 MPIcheckPoint();
360 #endif // is_mpi
361
362 if( the_globals->haveBox() ){
363 simnfo->box_x = the_globals->getBox();
364 simnfo->box_y = the_globals->getBox();
365 simnfo->box_z = the_globals->getBox();
366 }
367 else if( the_globals->haveDensity() ){
368
369 double vol;
370 vol = (double)tot_nmol / the_globals->getDensity();
371 simnfo->box_x = pow( vol, ( 1.0 / 3.0 ) );
372 simnfo->box_y = simnfo->box_x;
373 simnfo->box_z = simnfo->box_x;
374 }
375 else{
376 if( !the_globals->haveBoxX() ){
377 sprintf( painCave.errMsg,
378 "SimSetup error, no periodic BoxX size given.\n" );
379 painCave.isFatal = 1;
380 simError();
381 }
382 simnfo->box_x = the_globals->getBoxX();
383
384 if( !the_globals->haveBoxY() ){
385 sprintf( painCave.errMsg,
386 "SimSetup error, no periodic BoxY size given.\n" );
387 painCave.isFatal = 1;
388 simError();
389 }
390 simnfo->box_y = the_globals->getBoxY();
391
392 if( !the_globals->haveBoxZ() ){
393 sprintf( painCave.errMsg,
394 "SimSetup error, no periodic BoxZ size given.\n" );
395 painCave.isFatal = 1;
396 simError();
397 }
398 simnfo->box_z = the_globals->getBoxZ();
399 }
400
401 #ifdef IS_MPI
402 strcpy( checkPointMsg, "Box size set up" );
403 MPIcheckPoint();
404 #endif // is_mpi
405
406
407
408 // if( the_globals->haveInitialConfig() ){
409 // InitializeFromFile* fileInit;
410 // fileInit = new InitializeFromFile( the_globals->getInitialConfig() );
411
412 // fileInit->read_xyz( simnfo ); // default velocities on
413
414 // delete fileInit;
415 // }
416 // else{
417
418 #ifdef IS_MPI
419
420 // no init from bass
421
422 sprintf( painCave.errMsg,
423 "Cannot intialize a parallel simulation without an initial configuration file.\n" );
424 painCave.isFatal;
425 simError();
426
427 #else
428
429 initFromBass();
430
431 #endif // is_mpi
432
433 #ifdef IS_MPI
434 strcpy( checkPointMsg, "Successfully read in the initial configuration" );
435 MPIcheckPoint();
436 #endif // is_mpi
437
438
439
440
441
442 // }
443
444 #ifdef IS_MPI
445 if( worldRank == 0 ){
446 #endif // is_mpi
447
448 if( the_globals->haveFinalConfig() ){
449 strcpy( simnfo->finalName, the_globals->getFinalConfig() );
450 }
451 else{
452 strcpy( simnfo->finalName, inFileName );
453 char* endTest;
454 int nameLength = strlen( simnfo->finalName );
455 endTest = &(simnfo->finalName[nameLength - 5]);
456 if( !strcmp( endTest, ".bass" ) ){
457 strcpy( endTest, ".eor" );
458 }
459 else if( !strcmp( endTest, ".BASS" ) ){
460 strcpy( endTest, ".eor" );
461 }
462 else{
463 endTest = &(simnfo->finalName[nameLength - 4]);
464 if( !strcmp( endTest, ".bss" ) ){
465 strcpy( endTest, ".eor" );
466 }
467 else if( !strcmp( endTest, ".mdl" ) ){
468 strcpy( endTest, ".eor" );
469 }
470 else{
471 strcat( simnfo->finalName, ".eor" );
472 }
473 }
474 }
475
476 // make the sample and status out names
477
478 strcpy( simnfo->sampleName, inFileName );
479 char* endTest;
480 int nameLength = strlen( simnfo->sampleName );
481 endTest = &(simnfo->sampleName[nameLength - 5]);
482 if( !strcmp( endTest, ".bass" ) ){
483 strcpy( endTest, ".dump" );
484 }
485 else if( !strcmp( endTest, ".BASS" ) ){
486 strcpy( endTest, ".dump" );
487 }
488 else{
489 endTest = &(simnfo->sampleName[nameLength - 4]);
490 if( !strcmp( endTest, ".bss" ) ){
491 strcpy( endTest, ".dump" );
492 }
493 else if( !strcmp( endTest, ".mdl" ) ){
494 strcpy( endTest, ".dump" );
495 }
496 else{
497 strcat( simnfo->sampleName, ".dump" );
498 }
499 }
500
501 strcpy( simnfo->statusName, inFileName );
502 nameLength = strlen( simnfo->statusName );
503 endTest = &(simnfo->statusName[nameLength - 5]);
504 if( !strcmp( endTest, ".bass" ) ){
505 strcpy( endTest, ".stat" );
506 }
507 else if( !strcmp( endTest, ".BASS" ) ){
508 strcpy( endTest, ".stat" );
509 }
510 else{
511 endTest = &(simnfo->statusName[nameLength - 4]);
512 if( !strcmp( endTest, ".bss" ) ){
513 strcpy( endTest, ".stat" );
514 }
515 else if( !strcmp( endTest, ".mdl" ) ){
516 strcpy( endTest, ".stat" );
517 }
518 else{
519 strcat( simnfo->statusName, ".stat" );
520 }
521 }
522
523 #ifdef IS_MPI
524 }
525 #endif // is_mpi
526
527 // set the status, sample, and themal kick times
528
529 if( the_globals->haveSampleTime() ){
530 simnfo->sampleTime = the_globals->getSampleTime();
531 simnfo->statusTime = simnfo->sampleTime;
532 simnfo->thermalTime = simnfo->sampleTime;
533 }
534 else{
535 simnfo->sampleTime = the_globals->getRunTime();
536 simnfo->statusTime = simnfo->sampleTime;
537 simnfo->thermalTime = simnfo->sampleTime;
538 }
539
540 if( the_globals->haveStatusTime() ){
541 simnfo->statusTime = the_globals->getStatusTime();
542 }
543
544 if( the_globals->haveThermalTime() ){
545 simnfo->thermalTime = the_globals->getThermalTime();
546 }
547
548 // check for the temperature set flag
549
550 if( the_globals->haveTempSet() ) simnfo->setTemp = the_globals->getTempSet();
551
552
553 // make the longe range forces and the integrator
554
555 new AllLong( simnfo );
556
557 if( !strcmp( force_field, "TraPPE" ) ) new Verlet( *simnfo );
558 if( !strcmp( force_field, "DipoleTest" ) ) new Symplectic( simnfo );
559 if( !strcmp( force_field, "TraPPE_Ex" ) ) new Symplectic( simnfo );
560 }
561
562 void SimSetup::makeAtoms( void ){
563
564 int i, j, k, index;
565 double ux, uy, uz, uSqr, u;
566 AtomStamp* current_atom;
567 DirectionalAtom* dAtom;
568 int molIndex, molStart, molEnd, nMemb, lMolIndex;
569
570 lMolIndex = 0;
571 molIndex = 0;
572 index = 0;
573 for( i=0; i<n_components; i++ ){
574
575 for( j=0; j<components_nmol[i]; j++ ){
576
577 #ifdef IS_MPI
578 if( simnfo->mpiSim->getMyMolStart() <= molIndex &&
579 molIndex <= simnfo->mpiSim->getMyMolEnd() ){
580 #endif // is_mpi
581
582 molStart = index;
583 nMemb = comp_stamps[i]->getNAtoms();
584 for( k=0; k<comp_stamps[i]->getNAtoms(); k++ ){
585
586 current_atom = comp_stamps[i]->getAtom( k );
587 if( current_atom->haveOrientation() ){
588
589 dAtom = new DirectionalAtom(index);
590 simnfo->n_oriented++;
591 the_atoms[index] = dAtom;
592
593 ux = current_atom->getOrntX();
594 uy = current_atom->getOrntY();
595 uz = current_atom->getOrntZ();
596
597 uSqr = (ux * ux) + (uy * uy) + (uz * uz);
598
599 u = sqrt( uSqr );
600 ux = ux / u;
601 uy = uy / u;
602 uz = uz / u;
603
604 dAtom->setSUx( ux );
605 dAtom->setSUy( uy );
606 dAtom->setSUz( uz );
607 }
608 else{
609 the_atoms[index] = new GeneralAtom(index);
610 }
611 the_atoms[index]->setType( current_atom->getType() );
612 the_atoms[index]->setIndex( index );
613
614 // increment the index and repeat;
615 index++;
616 }
617
618 molEnd = index -1;
619 the_molecules[lMolIndex].setNMembers( nMemb );
620 the_molecules[lMolIndex].setStartAtom( molStart );
621 the_molecules[lMolIndex].setEndAtom( molEnd );
622 the_molecules[lMolIndex].setStampID( i );
623 lMolIndex++;
624
625 #ifdef IS_MPI
626 }
627 #endif //is_mpi
628
629 molIndex++;
630 }
631 }
632
633 the_ff->initializeAtoms();
634 }
635
636 void SimSetup::makeBonds( void ){
637
638 int i, j, k, index, offset, molIndex;
639 bond_pair* the_bonds;
640 BondStamp* current_bond;
641
642 the_bonds = new bond_pair[tot_bonds];
643 index = 0;
644 offset = 0;
645 molIndex = 0;
646 for( i=0; i<n_components; i++ ){
647
648 for( j=0; j<components_nmol[i]; j++ ){
649
650 #ifdef IS_MPI
651 if( simnfo->mpiSim->getMyMolStart() <= molIndex &&
652 molIndex <= simnfo->mpiSim->getMyMolEnd() ){
653 #endif // is_mpi
654
655 for( k=0; k<comp_stamps[i]->getNBonds(); k++ ){
656
657 current_bond = comp_stamps[i]->getBond( k );
658 the_bonds[index].a = current_bond->getA() + offset;
659 the_bonds[index].b = current_bond->getB() + offset;
660
661 the_excludes[index].i = the_bonds[index].a;
662 the_excludes[index].j = the_bonds[index].b;
663
664 // increment the index and repeat;
665 index++;
666 }
667 offset += comp_stamps[i]->getNAtoms();
668
669 #ifdef IS_MPI
670 }
671 #endif is_mpi
672
673 molIndex++;
674 }
675 }
676
677 the_ff->initializeBonds( the_bonds );
678 }
679
680 void SimSetup::makeBends( void ){
681
682 int i, j, k, index, offset, molIndex;
683 bend_set* the_bends;
684 BendStamp* current_bend;
685
686 the_bends = new bend_set[tot_bends];
687 index = 0;
688 offset = 0;
689 molIndex = 0;
690 for( i=0; i<n_components; i++ ){
691
692 for( j=0; j<components_nmol[i]; j++ ){
693
694 #ifdef IS_MPI
695 if( simnfo->mpiSim->getMyMolStart() <= molIndex &&
696 molIndex <= simnfo->mpiSim->getMyMolEnd() ){
697 #endif // is_mpi
698
699 for( k=0; k<comp_stamps[i]->getNBends(); k++ ){
700
701 current_bend = comp_stamps[i]->getBend( k );
702 the_bends[index].a = current_bend->getA() + offset;
703 the_bends[index].b = current_bend->getB() + offset;
704 the_bends[index].c = current_bend->getC() + offset;
705
706 the_excludes[index + tot_bonds].i = the_bends[index].a;
707 the_excludes[index + tot_bonds].j = the_bends[index].c;
708
709 // increment the index and repeat;
710 index++;
711 }
712 offset += comp_stamps[i]->getNAtoms();
713
714 #ifdef IS_MPI
715 }
716 #endif //is_mpi
717
718 molIndex++;
719 }
720 }
721
722 the_ff->initializeBends( the_bends );
723 }
724
725 void SimSetup::makeTorsions( void ){
726
727 int i, j, k, index, offset, molIndex;
728 torsion_set* the_torsions;
729 TorsionStamp* current_torsion;
730
731 the_torsions = new torsion_set[tot_torsions];
732 index = 0;
733 offset = 0;
734 molIndex = 0;
735 for( i=0; i<n_components; i++ ){
736
737 for( j=0; j<components_nmol[i]; j++ ){
738
739 #ifdef IS_MPI
740 if( simnfo->mpiSim->getMyMolStart() <= molIndex &&
741 molIndex <= simnfo->mpiSim->getMyMolEnd() ){
742 #endif // is_mpi
743
744 for( k=0; k<comp_stamps[i]->getNTorsions(); k++ ){
745
746 current_torsion = comp_stamps[i]->getTorsion( k );
747 the_torsions[index].a = current_torsion->getA() + offset;
748 the_torsions[index].b = current_torsion->getB() + offset;
749 the_torsions[index].c = current_torsion->getC() + offset;
750 the_torsions[index].d = current_torsion->getD() + offset;
751
752 the_excludes[index + tot_bonds + tot_bends].i = the_torsions[index].a;
753 the_excludes[index + tot_bonds + tot_bends].j = the_torsions[index].d;
754
755 // increment the index and repeat;
756 index++;
757 }
758 offset += comp_stamps[i]->getNAtoms();
759
760 #ifdef IS_MPI
761 }
762 #endif //is_mpi
763
764 molIndex++;
765 }
766 }
767
768 the_ff->initializeTorsions( the_torsions );
769 }
770
771 void SimSetup::initFromBass( void ){
772
773 int i, j, k;
774 int n_cells;
775 double cellx, celly, cellz;
776 double temp1, temp2, temp3;
777 int n_per_extra;
778 int n_extra;
779 int have_extra, done;
780
781 temp1 = (double)tot_nmol / 4.0;
782 temp2 = pow( temp1, ( 1.0 / 3.0 ) );
783 temp3 = ceil( temp2 );
784
785 have_extra =0;
786 if( temp2 < temp3 ){ // we have a non-complete lattice
787 have_extra =1;
788
789 n_cells = (int)temp3 - 1;
790 cellx = simnfo->box_x / temp3;
791 celly = simnfo->box_y / temp3;
792 cellz = simnfo->box_z / temp3;
793 n_extra = tot_nmol - ( 4 * n_cells * n_cells * n_cells );
794 temp1 = ((double)n_extra) / ( pow( temp3, 3.0 ) - pow( n_cells, 3.0 ) );
795 n_per_extra = (int)ceil( temp1 );
796
797 if( n_per_extra > 4){
798 sprintf( painCave.errMsg,
799 "SimSetup error. There has been an error in constructing"
800 " the non-complete lattice.\n" );
801 painCave.isFatal = 1;
802 simError();
803 }
804 }
805 else{
806 n_cells = (int)temp3;
807 cellx = simnfo->box_x / temp3;
808 celly = simnfo->box_y / temp3;
809 cellz = simnfo->box_z / temp3;
810 }
811
812 current_mol = 0;
813 current_comp_mol = 0;
814 current_comp = 0;
815 current_atom_ndx = 0;
816
817 for( i=0; i < n_cells ; i++ ){
818 for( j=0; j < n_cells; j++ ){
819 for( k=0; k < n_cells; k++ ){
820
821 makeElement( i * cellx,
822 j * celly,
823 k * cellz );
824
825 makeElement( i * cellx + 0.5 * cellx,
826 j * celly + 0.5 * celly,
827 k * cellz );
828
829 makeElement( i * cellx,
830 j * celly + 0.5 * celly,
831 k * cellz + 0.5 * cellz );
832
833 makeElement( i * cellx + 0.5 * cellx,
834 j * celly,
835 k * cellz + 0.5 * cellz );
836 }
837 }
838 }
839
840 if( have_extra ){
841 done = 0;
842
843 int start_ndx;
844 for( i=0; i < (n_cells+1) && !done; i++ ){
845 for( j=0; j < (n_cells+1) && !done; j++ ){
846
847 if( i < n_cells ){
848
849 if( j < n_cells ){
850 start_ndx = n_cells;
851 }
852 else start_ndx = 0;
853 }
854 else start_ndx = 0;
855
856 for( k=start_ndx; k < (n_cells+1) && !done; k++ ){
857
858 makeElement( i * cellx,
859 j * celly,
860 k * cellz );
861 done = ( current_mol >= tot_nmol );
862
863 if( !done && n_per_extra > 1 ){
864 makeElement( i * cellx + 0.5 * cellx,
865 j * celly + 0.5 * celly,
866 k * cellz );
867 done = ( current_mol >= tot_nmol );
868 }
869
870 if( !done && n_per_extra > 2){
871 makeElement( i * cellx,
872 j * celly + 0.5 * celly,
873 k * cellz + 0.5 * cellz );
874 done = ( current_mol >= tot_nmol );
875 }
876
877 if( !done && n_per_extra > 3){
878 makeElement( i * cellx + 0.5 * cellx,
879 j * celly,
880 k * cellz + 0.5 * cellz );
881 done = ( current_mol >= tot_nmol );
882 }
883 }
884 }
885 }
886 }
887
888
889 for( i=0; i<simnfo->n_atoms; i++ ){
890 simnfo->atoms[i]->set_vx( 0.0 );
891 simnfo->atoms[i]->set_vy( 0.0 );
892 simnfo->atoms[i]->set_vz( 0.0 );
893 }
894 }
895
896 void SimSetup::makeElement( double x, double y, double z ){
897
898 int k;
899 AtomStamp* current_atom;
900 DirectionalAtom* dAtom;
901 double rotMat[3][3];
902
903 for( k=0; k<comp_stamps[current_comp]->getNAtoms(); k++ ){
904
905 current_atom = comp_stamps[current_comp]->getAtom( k );
906 if( !current_atom->havePosition() ){
907 sprintf( painCave.errMsg,
908 "SimSetup:initFromBass error.\n"
909 "\tComponent %s, atom %s does not have a position specified.\n"
910 "\tThe initialization routine is unable to give a start"
911 " position.\n",
912 comp_stamps[current_comp]->getID(),
913 current_atom->getType() );
914 painCave.isFatal = 1;
915 simError();
916 }
917
918 the_atoms[current_atom_ndx]->setX( x + current_atom->getPosX() );
919 the_atoms[current_atom_ndx]->setY( y + current_atom->getPosY() );
920 the_atoms[current_atom_ndx]->setZ( z + current_atom->getPosZ() );
921
922 if( the_atoms[current_atom_ndx]->isDirectional() ){
923
924 dAtom = (DirectionalAtom *)the_atoms[current_atom_ndx];
925
926 rotMat[0][0] = 1.0;
927 rotMat[0][1] = 0.0;
928 rotMat[0][2] = 0.0;
929
930 rotMat[1][0] = 0.0;
931 rotMat[1][1] = 1.0;
932 rotMat[1][2] = 0.0;
933
934 rotMat[2][0] = 0.0;
935 rotMat[2][1] = 0.0;
936 rotMat[2][2] = 1.0;
937
938 dAtom->setA( rotMat );
939 }
940
941 current_atom_ndx++;
942 }
943
944 current_mol++;
945 current_comp_mol++;
946
947 if( current_comp_mol >= components_nmol[current_comp] ){
948
949 current_comp_mol = 0;
950 current_comp++;
951 }
952 }