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root/group/trunk/mdtools/interface_implementation/SimSetup.cpp
Revision: 249
Committed: Mon Jan 27 21:28:19 2003 UTC (21 years, 5 months ago) by chuckv
File size: 22758 byte(s)
Log Message:
For some unknown reason the Single processor builds. Has not been tested!

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 "mpiSimulation.hpp"
14 #include "bassDiag.hpp"
15 #endif
16
17 SimSetup::SimSetup(){
18 stamps = new MakeStamps();
19 globals = new Globals();
20
21 #ifdef IS_MPI
22 strcpy( checkPointMsg, "SimSetup creation successful" );
23 MPIcheckPoint();
24 #endif // IS_MPI
25 }
26
27 SimSetup::~SimSetup(){
28 delete stamps;
29 delete globals;
30 }
31
32 void SimSetup::parseFile( char* fileName ){
33
34 #ifdef IS_MPI
35 if( worldRank == 0 ){
36 #endif // is_mpi
37
38 inFileName = fileName;
39 set_interface_stamps( stamps, globals );
40
41 #ifdef IS_MPI
42 mpiEventInit();
43 #endif
44
45 yacc_BASS( fileName );
46
47 #ifdef IS_MPI
48 throwMPIEvent(NULL);
49 }
50 else receiveParse();
51 #endif
52
53 }
54
55 #ifdef IS_MPI
56 void SimSetup::receiveParse(void){
57
58 set_interface_stamps( stamps, globals );
59 mpiEventInit();
60 MPIcheckPoint();
61 mpiEventLoop();
62
63 }
64
65
66 void SimSetup::testMe(void){
67 bassDiag* dumpMe = new bassDiag(globals,stamps);
68 dumpMe->dumpStamps();
69 delete dumpMe;
70 }
71 #endif
72
73 void SimSetup::createSim( void ){
74
75 MakeStamps *the_stamps;
76 Globals* the_globals;
77 int i, j;
78
79 // get the stamps and globals;
80 the_stamps = stamps;
81 the_globals = globals;
82
83 // set the easy ones first
84 simnfo->target_temp = the_globals->getTargetTemp();
85 simnfo->dt = the_globals->getDt();
86 simnfo->run_time = the_globals->getRunTime();
87
88 // get the ones we know are there, yet still may need some work.
89 n_components = the_globals->getNComponents();
90 strcpy( force_field, the_globals->getForceField() );
91 strcpy( ensemble, the_globals->getEnsemble() );
92
93 if( !strcmp( force_field, "TraPPE" ) ) the_ff = new TraPPEFF();
94 else if( !strcmp( force_field, "DipoleTest" ) ) the_ff = new DipoleTestFF();
95 else if( !strcmp( force_field, "TraPPE_Ex" ) ) the_ff = new TraPPE_ExFF();
96 else if( !strcmp( force_field, "LJ" ) ) the_ff = new LJ_FF();
97 else{
98 sprintf( painCave.errMsg,
99 "SimSetup Error. Unrecognized force field -> %s\n",
100 force_field );
101 painCave.isFatal = 1;
102 simError();
103 }
104
105 #ifdef IS_MPI
106 strcpy( checkPointMsg, "ForceField creation successful" );
107 MPIcheckPoint();
108 #endif // is_mpi
109
110 // get the components and calculate the tot_nMol and indvidual n_mol
111 the_components = the_globals->getComponents();
112 components_nmol = new int[n_components];
113 comp_stamps = new MoleculeStamp*[n_components];
114
115 if( !the_globals->haveNMol() ){
116 // we don't have the total number of molecules, so we assume it is
117 // given in each component
118
119 tot_nmol = 0;
120 for( i=0; i<n_components; i++ ){
121
122 if( !the_components[i]->haveNMol() ){
123 // we have a problem
124 sprintf( painCave.errMsg,
125 "SimSetup Error. No global NMol or component NMol"
126 " given. Cannot calculate the number of atoms.\n" );
127 painCave.isFatal = 1;
128 simError();
129 }
130
131 tot_nmol += the_components[i]->getNMol();
132 components_nmol[i] = the_components[i]->getNMol();
133 }
134 }
135 else{
136 sprintf( painCave.errMsg,
137 "SimSetup error.\n"
138 "\tSorry, the ability to specify total"
139 " nMols and then give molfractions in the components\n"
140 "\tis not currently supported."
141 " Please give nMol in the components.\n" );
142 painCave.isFatal = 1;
143 simError();
144
145
146 // tot_nmol = the_globals->getNMol();
147
148 // //we have the total number of molecules, now we check for molfractions
149 // for( i=0; i<n_components; i++ ){
150
151 // if( !the_components[i]->haveMolFraction() ){
152
153 // if( !the_components[i]->haveNMol() ){
154 // //we have a problem
155 // std::cerr << "SimSetup error. Neither molFraction nor "
156 // << " nMol was given in component
157
158 }
159
160 #ifdef IS_MPI
161 strcpy( checkPointMsg, "Have the number of components" );
162 MPIcheckPoint();
163 #endif // is_mpi
164
165 // make an array of molecule stamps that match the components used.
166 // also extract the used stamps out into a separate linked list
167
168 simnfo->nComponents = n_components;
169 simnfo->componentsNmol = components_nmol;
170 simnfo->compStamps = comp_stamps;
171 simnfo->headStamp = new LinkedMolStamp();
172
173 char* id;
174 LinkedMolStamp* headStamp = simnfo->headStamp;
175 LinkedMolStamp* currentStamp = NULL;
176 for( i=0; i<n_components; i++ ){
177
178 id = the_components[i]->getType();
179 comp_stamps[i] = NULL;
180
181 // check to make sure the component isn't already in the list
182
183 comp_stamps[i] = headStamp->match( id );
184 if( comp_stamps[i] == NULL ){
185
186 // extract the component from the list;
187
188 currentStamp = the_stamps->extractMolStamp( id );
189 if( currentStamp == NULL ){
190 sprintf( painCave.errMsg,
191 "SimSetup error: Component \"%s\" was not found in the "
192 "list of declared molecules\n",
193 id );
194 painCave.isFatal = 1;
195 simError();
196 }
197
198 headStamp->add( currentStamp );
199 comp_stamps[i] = headStamp->match( id );
200 }
201 }
202
203 #ifdef IS_MPI
204 strcpy( checkPointMsg, "Component stamps successfully extracted\n" );
205 MPIcheckPoint();
206 #endif // is_mpi
207
208
209
210
211 // caclulate the number of atoms, bonds, bends and torsions
212
213 tot_atoms = 0;
214 tot_bonds = 0;
215 tot_bends = 0;
216 tot_torsions = 0;
217 for( i=0; i<n_components; i++ ){
218
219 tot_atoms += components_nmol[i] * comp_stamps[i]->getNAtoms();
220 tot_bonds += components_nmol[i] * comp_stamps[i]->getNBonds();
221 tot_bends += components_nmol[i] * comp_stamps[i]->getNBends();
222 tot_torsions += components_nmol[i] * comp_stamps[i]->getNTorsions();
223 }
224
225 tot_SRI = tot_bonds + tot_bends + tot_torsions;
226
227 simnfo->n_atoms = tot_atoms;
228 simnfo->n_bonds = tot_bonds;
229 simnfo->n_bends = tot_bends;
230 simnfo->n_torsions = tot_torsions;
231 simnfo->n_SRI = tot_SRI;
232 simnfo->n_mol = tot_nmol;
233
234
235 #ifdef IS_MPI
236
237 // divide the molecules among processors here.
238
239 mpiSim = new mpiSimulation( simnfo );
240
241 mpiSim->divideLabor();
242
243 // set up the local variables
244
245 int localMol, allMol;
246 int local_atoms, local_bonds, local_bends, local_torsions, local_SRI;
247
248 allMol = 0;
249 localMol = 0;
250 local_atoms = 0;
251 local_bonds = 0;
252 local_bends = 0;
253 local_torsions = 0;
254 for( i=0; i<n_components; i++ ){
255
256 for( j=0; j<components_nmol[i]; j++ ){
257
258 if( mpiSim->getMyMolStart() <= allMol &&
259 allMol <= mpiSim->getMyMolEnd() ){
260
261 local_atoms += comp_stamps[i]->getNAtoms();
262 local_bonds += comp_stamps[i]->getNBonds();
263 local_bends += comp_stamps[i]->getNBends();
264 local_torsions += comp_stamps[i]->getNTorsions();
265 localMol++;
266 }
267 allMol++;
268 }
269 }
270 local_SRI = local_bonds + local_bends + local_torsions;
271
272
273 simnfo->n_atoms = mpiSim->getMyNlocal();
274
275 if( local_atoms != simnfo->n_atoms ){
276 sprintf( painCave.errMsg,
277 "SimSetup error: mpiSim's localAtom (%d) and SimSetup's"
278 " localAtom (%d) are note equal.\n",
279 simnfo->n_atoms,
280 local_atoms );
281 painCave.isFatal = 1;
282 simError();
283 }
284
285 simnfo->n_bonds = local_bonds;
286 simnfo->n_bends = local_bends;
287 simnfo->n_torsions = local_torsions;
288 simnfo->n_SRI = local_SRI;
289 simnfo->n_mol = localMol;
290
291 strcpy( checkPointMsg, "Passed nlocal consistency check." );
292 MPIcheckPoint();
293
294
295 #endif // is_mpi
296
297
298 // create the atom and short range interaction arrays
299
300 Atom::createArrays(simnfo->n_atoms);
301 the_atoms = new Atom*[simnfo->n_atoms];
302 the_molecules = new Molecule[simnfo->n_mol];
303
304
305 if( simnfo->n_SRI ){
306 the_sris = new SRI*[simnfo->n_SRI];
307 the_excludes = new ex_pair[simnfo->n_SRI];
308 }
309
310 // set the arrays into the SimInfo object
311
312 simnfo->atoms = the_atoms;
313 simnfo->sr_interactions = the_sris;
314 simnfo->n_exclude = tot_SRI;
315 simnfo->excludes = the_excludes;
316
317
318 // get some of the tricky things that may still be in the globals
319
320 if( simnfo->n_dipoles ){
321
322 if( !the_globals->haveRRF() ){
323 sprintf( painCave.errMsg,
324 "SimSetup Error, system has dipoles, but no rRF was set.\n");
325 painCave.isFatal = 1;
326 simError();
327 }
328 if( !the_globals->haveDielectric() ){
329 sprintf( painCave.errMsg,
330 "SimSetup Error, system has dipoles, but no"
331 " dielectric was set.\n" );
332 painCave.isFatal = 1;
333 simError();
334 }
335
336 simnfo->rRF = the_globals->getRRF();
337 simnfo->dielectric = the_globals->getDielectric();
338 }
339
340 #ifdef IS_MPI
341 strcpy( checkPointMsg, "rRf and dielectric check out" );
342 MPIcheckPoint();
343 #endif // is_mpi
344
345 if( the_globals->haveBox() ){
346 simnfo->box_x = the_globals->getBox();
347 simnfo->box_y = the_globals->getBox();
348 simnfo->box_z = the_globals->getBox();
349 }
350 else if( the_globals->haveDensity() ){
351
352 double vol;
353 vol = (double)tot_nmol / the_globals->getDensity();
354 simnfo->box_x = pow( vol, ( 1.0 / 3.0 ) );
355 simnfo->box_y = simnfo->box_x;
356 simnfo->box_z = simnfo->box_x;
357 }
358 else{
359 if( !the_globals->haveBoxX() ){
360 sprintf( painCave.errMsg,
361 "SimSetup error, no periodic BoxX size given.\n" );
362 painCave.isFatal = 1;
363 simError();
364 }
365 simnfo->box_x = the_globals->getBoxX();
366
367 if( !the_globals->haveBoxY() ){
368 sprintf( painCave.errMsg,
369 "SimSetup error, no periodic BoxY size given.\n" );
370 painCave.isFatal = 1;
371 simError();
372 }
373 simnfo->box_y = the_globals->getBoxY();
374
375 if( !the_globals->haveBoxZ() ){
376 sprintf( painCave.errMsg,
377 "SimSetup error, no periodic BoxZ size given.\n" );
378 painCave.isFatal = 1;
379 simError();
380 }
381 simnfo->box_z = the_globals->getBoxZ();
382 }
383
384 #ifdef IS_MPI
385 strcpy( checkPointMsg, "Box size set up" );
386 MPIcheckPoint();
387 #endif // is_mpi
388
389
390 // initialize the arrays
391
392 the_ff->setSimInfo( simnfo );
393
394 makeAtoms();
395
396 if( tot_bonds ){
397 makeBonds();
398 }
399
400 if( tot_bends ){
401 makeBends();
402 }
403
404 if( tot_torsions ){
405 makeTorsions();
406 }
407
408
409
410
411
412
413 if( the_globals->haveInitialConfig() ){
414
415 InitializeFromFile* fileInit;
416 #ifdef IS_MPI // is_mpi
417 if( worldRank == 0 ){
418 #endif //is_mpi
419 fileInit = new InitializeFromFile( the_globals->getInitialConfig() );
420 #ifdef IS_MPI
421 }else fileInit = new InitializeFromFile( NULL );
422 #endif
423 fileInit->read_xyz( simnfo ); // default velocities on
424
425 delete fileInit;
426 }
427 else{
428
429 #ifdef IS_MPI
430
431 // no init from bass
432
433 sprintf( painCave.errMsg,
434 "Cannot intialize a parallel simulation without an initial configuration file.\n" );
435 painCave.isFatal;
436 simError();
437
438 #else
439
440 initFromBass();
441
442
443 #endif
444 }
445
446 #ifdef IS_MPI
447 strcpy( checkPointMsg, "Successfully read in the initial configuration" );
448 MPIcheckPoint();
449 #endif // is_mpi
450
451
452
453
454
455
456
457 #ifdef IS_MPI
458 if( worldRank == 0 ){
459 #endif // is_mpi
460
461 if( the_globals->haveFinalConfig() ){
462 strcpy( simnfo->finalName, the_globals->getFinalConfig() );
463 }
464 else{
465 strcpy( simnfo->finalName, inFileName );
466 char* endTest;
467 int nameLength = strlen( simnfo->finalName );
468 endTest = &(simnfo->finalName[nameLength - 5]);
469 if( !strcmp( endTest, ".bass" ) ){
470 strcpy( endTest, ".eor" );
471 }
472 else if( !strcmp( endTest, ".BASS" ) ){
473 strcpy( endTest, ".eor" );
474 }
475 else{
476 endTest = &(simnfo->finalName[nameLength - 4]);
477 if( !strcmp( endTest, ".bss" ) ){
478 strcpy( endTest, ".eor" );
479 }
480 else if( !strcmp( endTest, ".mdl" ) ){
481 strcpy( endTest, ".eor" );
482 }
483 else{
484 strcat( simnfo->finalName, ".eor" );
485 }
486 }
487 }
488
489 // make the sample and status out names
490
491 strcpy( simnfo->sampleName, inFileName );
492 char* endTest;
493 int nameLength = strlen( simnfo->sampleName );
494 endTest = &(simnfo->sampleName[nameLength - 5]);
495 if( !strcmp( endTest, ".bass" ) ){
496 strcpy( endTest, ".dump" );
497 }
498 else if( !strcmp( endTest, ".BASS" ) ){
499 strcpy( endTest, ".dump" );
500 }
501 else{
502 endTest = &(simnfo->sampleName[nameLength - 4]);
503 if( !strcmp( endTest, ".bss" ) ){
504 strcpy( endTest, ".dump" );
505 }
506 else if( !strcmp( endTest, ".mdl" ) ){
507 strcpy( endTest, ".dump" );
508 }
509 else{
510 strcat( simnfo->sampleName, ".dump" );
511 }
512 }
513
514 strcpy( simnfo->statusName, inFileName );
515 nameLength = strlen( simnfo->statusName );
516 endTest = &(simnfo->statusName[nameLength - 5]);
517 if( !strcmp( endTest, ".bass" ) ){
518 strcpy( endTest, ".stat" );
519 }
520 else if( !strcmp( endTest, ".BASS" ) ){
521 strcpy( endTest, ".stat" );
522 }
523 else{
524 endTest = &(simnfo->statusName[nameLength - 4]);
525 if( !strcmp( endTest, ".bss" ) ){
526 strcpy( endTest, ".stat" );
527 }
528 else if( !strcmp( endTest, ".mdl" ) ){
529 strcpy( endTest, ".stat" );
530 }
531 else{
532 strcat( simnfo->statusName, ".stat" );
533 }
534 }
535
536 #ifdef IS_MPI
537 }
538 #endif // is_mpi
539
540 // set the status, sample, and themal kick times
541
542 if( the_globals->haveSampleTime() ){
543 simnfo->sampleTime = the_globals->getSampleTime();
544 simnfo->statusTime = simnfo->sampleTime;
545 simnfo->thermalTime = simnfo->sampleTime;
546 }
547 else{
548 simnfo->sampleTime = the_globals->getRunTime();
549 simnfo->statusTime = simnfo->sampleTime;
550 simnfo->thermalTime = simnfo->sampleTime;
551 }
552
553 if( the_globals->haveStatusTime() ){
554 simnfo->statusTime = the_globals->getStatusTime();
555 }
556
557 if( the_globals->haveThermalTime() ){
558 simnfo->thermalTime = the_globals->getThermalTime();
559 }
560
561 // check for the temperature set flag
562
563 if( the_globals->haveTempSet() ) simnfo->setTemp = the_globals->getTempSet();
564
565
566 // // make the longe range forces and the integrator
567
568 // new AllLong( simnfo );
569
570 if( !strcmp( force_field, "TraPPE" ) ) new Verlet( *simnfo, the_ff );
571 if( !strcmp( force_field, "DipoleTest" ) ) new Symplectic( simnfo );
572 if( !strcmp( force_field, "TraPPE_Ex" ) ) new Symplectic( simnfo );
573 if( !strcmp( force_field, "LJ" ) ) new Verlet( *simnfo, the_ff );
574
575 }
576
577 void SimSetup::makeAtoms( void ){
578
579 int i, j, k, index;
580 double ux, uy, uz, uSqr, u;
581 AtomStamp* current_atom;
582 DirectionalAtom* dAtom;
583 int molIndex, molStart, molEnd, nMemb, lMolIndex;
584
585 lMolIndex = 0;
586 molIndex = 0;
587 index = 0;
588 for( i=0; i<n_components; i++ ){
589
590 for( j=0; j<components_nmol[i]; j++ ){
591
592 #ifdef IS_MPI
593 if( mpiSim->getMyMolStart() <= molIndex &&
594 molIndex <= mpiSim->getMyMolEnd() ){
595 #endif // is_mpi
596
597 molStart = index;
598 nMemb = comp_stamps[i]->getNAtoms();
599 for( k=0; k<comp_stamps[i]->getNAtoms(); k++ ){
600
601 current_atom = comp_stamps[i]->getAtom( k );
602 if( current_atom->haveOrientation() ){
603
604 dAtom = new DirectionalAtom(index);
605 simnfo->n_oriented++;
606 the_atoms[index] = dAtom;
607
608 ux = current_atom->getOrntX();
609 uy = current_atom->getOrntY();
610 uz = current_atom->getOrntZ();
611
612 uSqr = (ux * ux) + (uy * uy) + (uz * uz);
613
614 u = sqrt( uSqr );
615 ux = ux / u;
616 uy = uy / u;
617 uz = uz / u;
618
619 dAtom->setSUx( ux );
620 dAtom->setSUy( uy );
621 dAtom->setSUz( uz );
622 }
623 else{
624 the_atoms[index] = new GeneralAtom(index);
625 }
626 the_atoms[index]->setType( current_atom->getType() );
627 the_atoms[index]->setIndex( index );
628
629 // increment the index and repeat;
630 index++;
631 }
632
633 molEnd = index -1;
634 the_molecules[lMolIndex].setNMembers( nMemb );
635 the_molecules[lMolIndex].setStartAtom( molStart );
636 the_molecules[lMolIndex].setEndAtom( molEnd );
637 the_molecules[lMolIndex].setStampID( i );
638 lMolIndex++;
639
640 #ifdef IS_MPI
641 }
642 #endif //is_mpi
643
644 molIndex++;
645 }
646 }
647
648 the_ff->initializeAtoms();
649 }
650
651 void SimSetup::makeBonds( void ){
652
653 int i, j, k, index, offset, molIndex;
654 bond_pair* the_bonds;
655 BondStamp* current_bond;
656
657 the_bonds = new bond_pair[tot_bonds];
658 index = 0;
659 offset = 0;
660 molIndex = 0;
661
662 for( i=0; i<n_components; i++ ){
663
664 for( j=0; j<components_nmol[i]; j++ ){
665
666 #ifdef IS_MPI
667 if( mpiSim->getMyMolStart() <= molIndex &&
668 molIndex <= mpiSim->getMyMolEnd() ){
669 #endif // is_mpi
670
671 for( k=0; k<comp_stamps[i]->getNBonds(); k++ ){
672
673 current_bond = comp_stamps[i]->getBond( k );
674 the_bonds[index].a = current_bond->getA() + offset;
675 the_bonds[index].b = current_bond->getB() + offset;
676
677 the_excludes[index].i = the_bonds[index].a;
678 the_excludes[index].j = the_bonds[index].b;
679
680 // increment the index and repeat;
681 index++;
682 }
683 offset += comp_stamps[i]->getNAtoms();
684
685 #ifdef IS_MPI
686 }
687 #endif is_mpi
688
689 molIndex++;
690 }
691 }
692
693 the_ff->initializeBonds( the_bonds );
694 }
695
696 void SimSetup::makeBends( void ){
697
698 int i, j, k, index, offset, molIndex;
699 bend_set* the_bends;
700 BendStamp* current_bend;
701
702 the_bends = new bend_set[tot_bends];
703 index = 0;
704 offset = 0;
705 molIndex = 0;
706 for( i=0; i<n_components; i++ ){
707
708 for( j=0; j<components_nmol[i]; j++ ){
709
710 #ifdef IS_MPI
711 if( mpiSim->getMyMolStart() <= molIndex &&
712 molIndex <= mpiSim->getMyMolEnd() ){
713 #endif // is_mpi
714
715 for( k=0; k<comp_stamps[i]->getNBends(); k++ ){
716
717 current_bend = comp_stamps[i]->getBend( k );
718 the_bends[index].a = current_bend->getA() + offset;
719 the_bends[index].b = current_bend->getB() + offset;
720 the_bends[index].c = current_bend->getC() + offset;
721
722 the_excludes[index + tot_bonds].i = the_bends[index].a;
723 the_excludes[index + tot_bonds].j = the_bends[index].c;
724
725 // increment the index and repeat;
726 index++;
727 }
728 offset += comp_stamps[i]->getNAtoms();
729
730 #ifdef IS_MPI
731 }
732 #endif //is_mpi
733
734 molIndex++;
735 }
736 }
737
738 the_ff->initializeBends( the_bends );
739 }
740
741 void SimSetup::makeTorsions( void ){
742
743 int i, j, k, index, offset, molIndex;
744 torsion_set* the_torsions;
745 TorsionStamp* current_torsion;
746
747 the_torsions = new torsion_set[tot_torsions];
748 index = 0;
749 offset = 0;
750 molIndex = 0;
751 for( i=0; i<n_components; i++ ){
752
753 for( j=0; j<components_nmol[i]; j++ ){
754
755 #ifdef IS_MPI
756 if( mpiSim->getMyMolStart() <= molIndex &&
757 molIndex <= mpiSim->getMyMolEnd() ){
758 #endif // is_mpi
759
760 for( k=0; k<comp_stamps[i]->getNTorsions(); k++ ){
761
762 current_torsion = comp_stamps[i]->getTorsion( k );
763 the_torsions[index].a = current_torsion->getA() + offset;
764 the_torsions[index].b = current_torsion->getB() + offset;
765 the_torsions[index].c = current_torsion->getC() + offset;
766 the_torsions[index].d = current_torsion->getD() + offset;
767
768 the_excludes[index + tot_bonds + tot_bends].i = the_torsions[index].a;
769 the_excludes[index + tot_bonds + tot_bends].j = the_torsions[index].d;
770
771 // increment the index and repeat;
772 index++;
773 }
774 offset += comp_stamps[i]->getNAtoms();
775
776 #ifdef IS_MPI
777 }
778 #endif //is_mpi
779
780 molIndex++;
781 }
782 }
783
784 the_ff->initializeTorsions( the_torsions );
785 }
786
787 void SimSetup::initFromBass( void ){
788
789 int i, j, k;
790 int n_cells;
791 double cellx, celly, cellz;
792 double temp1, temp2, temp3;
793 int n_per_extra;
794 int n_extra;
795 int have_extra, done;
796
797 temp1 = (double)tot_nmol / 4.0;
798 temp2 = pow( temp1, ( 1.0 / 3.0 ) );
799 temp3 = ceil( temp2 );
800
801 have_extra =0;
802 if( temp2 < temp3 ){ // we have a non-complete lattice
803 have_extra =1;
804
805 n_cells = (int)temp3 - 1;
806 cellx = simnfo->box_x / temp3;
807 celly = simnfo->box_y / temp3;
808 cellz = simnfo->box_z / temp3;
809 n_extra = tot_nmol - ( 4 * n_cells * n_cells * n_cells );
810 temp1 = ((double)n_extra) / ( pow( temp3, 3.0 ) - pow( n_cells, 3.0 ) );
811 n_per_extra = (int)ceil( temp1 );
812
813 if( n_per_extra > 4){
814 sprintf( painCave.errMsg,
815 "SimSetup error. There has been an error in constructing"
816 " the non-complete lattice.\n" );
817 painCave.isFatal = 1;
818 simError();
819 }
820 }
821 else{
822 n_cells = (int)temp3;
823 cellx = simnfo->box_x / temp3;
824 celly = simnfo->box_y / temp3;
825 cellz = simnfo->box_z / temp3;
826 }
827
828 current_mol = 0;
829 current_comp_mol = 0;
830 current_comp = 0;
831 current_atom_ndx = 0;
832
833 for( i=0; i < n_cells ; i++ ){
834 for( j=0; j < n_cells; j++ ){
835 for( k=0; k < n_cells; k++ ){
836
837 makeElement( i * cellx,
838 j * celly,
839 k * cellz );
840
841 makeElement( i * cellx + 0.5 * cellx,
842 j * celly + 0.5 * celly,
843 k * cellz );
844
845 makeElement( i * cellx,
846 j * celly + 0.5 * celly,
847 k * cellz + 0.5 * cellz );
848
849 makeElement( i * cellx + 0.5 * cellx,
850 j * celly,
851 k * cellz + 0.5 * cellz );
852 }
853 }
854 }
855
856 if( have_extra ){
857 done = 0;
858
859 int start_ndx;
860 for( i=0; i < (n_cells+1) && !done; i++ ){
861 for( j=0; j < (n_cells+1) && !done; j++ ){
862
863 if( i < n_cells ){
864
865 if( j < n_cells ){
866 start_ndx = n_cells;
867 }
868 else start_ndx = 0;
869 }
870 else start_ndx = 0;
871
872 for( k=start_ndx; k < (n_cells+1) && !done; k++ ){
873
874 makeElement( i * cellx,
875 j * celly,
876 k * cellz );
877 done = ( current_mol >= tot_nmol );
878
879 if( !done && n_per_extra > 1 ){
880 makeElement( i * cellx + 0.5 * cellx,
881 j * celly + 0.5 * celly,
882 k * cellz );
883 done = ( current_mol >= tot_nmol );
884 }
885
886 if( !done && n_per_extra > 2){
887 makeElement( i * cellx,
888 j * celly + 0.5 * celly,
889 k * cellz + 0.5 * cellz );
890 done = ( current_mol >= tot_nmol );
891 }
892
893 if( !done && n_per_extra > 3){
894 makeElement( i * cellx + 0.5 * cellx,
895 j * celly,
896 k * cellz + 0.5 * cellz );
897 done = ( current_mol >= tot_nmol );
898 }
899 }
900 }
901 }
902 }
903
904
905 for( i=0; i<simnfo->n_atoms; i++ ){
906 simnfo->atoms[i]->set_vx( 0.0 );
907 simnfo->atoms[i]->set_vy( 0.0 );
908 simnfo->atoms[i]->set_vz( 0.0 );
909 }
910 }
911
912 void SimSetup::makeElement( double x, double y, double z ){
913
914 int k;
915 AtomStamp* current_atom;
916 DirectionalAtom* dAtom;
917 double rotMat[3][3];
918
919 for( k=0; k<comp_stamps[current_comp]->getNAtoms(); k++ ){
920
921 current_atom = comp_stamps[current_comp]->getAtom( k );
922 if( !current_atom->havePosition() ){
923 sprintf( painCave.errMsg,
924 "SimSetup:initFromBass error.\n"
925 "\tComponent %s, atom %s does not have a position specified.\n"
926 "\tThe initialization routine is unable to give a start"
927 " position.\n",
928 comp_stamps[current_comp]->getID(),
929 current_atom->getType() );
930 painCave.isFatal = 1;
931 simError();
932 }
933
934 the_atoms[current_atom_ndx]->setX( x + current_atom->getPosX() );
935 the_atoms[current_atom_ndx]->setY( y + current_atom->getPosY() );
936 the_atoms[current_atom_ndx]->setZ( z + current_atom->getPosZ() );
937
938 if( the_atoms[current_atom_ndx]->isDirectional() ){
939
940 dAtom = (DirectionalAtom *)the_atoms[current_atom_ndx];
941
942 rotMat[0][0] = 1.0;
943 rotMat[0][1] = 0.0;
944 rotMat[0][2] = 0.0;
945
946 rotMat[1][0] = 0.0;
947 rotMat[1][1] = 1.0;
948 rotMat[1][2] = 0.0;
949
950 rotMat[2][0] = 0.0;
951 rotMat[2][1] = 0.0;
952 rotMat[2][2] = 1.0;
953
954 dAtom->setA( rotMat );
955 }
956
957 current_atom_ndx++;
958 }
959
960 current_mol++;
961 current_comp_mol++;
962
963 if( current_comp_mol >= components_nmol[current_comp] ){
964
965 current_comp_mol = 0;
966 current_comp++;
967 }
968 }