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root/group/trunk/mdtools/interface_implementation/SimSetup.cpp
Revision: 206
Committed: Thu Dec 12 21:21:59 2002 UTC (21 years, 6 months ago) by chuckv
File size: 22656 byte(s)
Log Message:
Initial mpi io conversion.

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
410 InitializeFromFile* fileInit;
411 #ifdef IS_MPI // is_mpi
412 if( worldRank == 0 ){
413 #endif //is_mpi
414 fileInit = new InitializeFromFile( the_globals->getInitialConfig() );
415 #ifdef IS_MPI
416 }else fileInit = new InitializeFromFile( NULL );
417 #endif
418 fileInit->read_xyz( simnfo ); // default velocities on
419
420 delete fileInit;
421 }
422 else{
423
424 #ifdef IS_MPI
425
426 // no init from bass
427
428 sprintf( painCave.errMsg,
429 "Cannot intialize a parallel simulation without an initial configuration file.\n" );
430 painCave.isFatal;
431 simError();
432
433 #else
434
435 initFromBass();
436
437
438 #endif
439 }
440
441 #ifdef IS_MPI
442 strcpy( checkPointMsg, "Successfully read in the initial configuration" );
443 MPIcheckPoint();
444 #endif // is_mpi
445
446
447
448
449
450
451
452 #ifdef IS_MPI
453 if( worldRank == 0 ){
454 #endif // is_mpi
455
456 if( the_globals->haveFinalConfig() ){
457 strcpy( simnfo->finalName, the_globals->getFinalConfig() );
458 }
459 else{
460 strcpy( simnfo->finalName, inFileName );
461 char* endTest;
462 int nameLength = strlen( simnfo->finalName );
463 endTest = &(simnfo->finalName[nameLength - 5]);
464 if( !strcmp( endTest, ".bass" ) ){
465 strcpy( endTest, ".eor" );
466 }
467 else if( !strcmp( endTest, ".BASS" ) ){
468 strcpy( endTest, ".eor" );
469 }
470 else{
471 endTest = &(simnfo->finalName[nameLength - 4]);
472 if( !strcmp( endTest, ".bss" ) ){
473 strcpy( endTest, ".eor" );
474 }
475 else if( !strcmp( endTest, ".mdl" ) ){
476 strcpy( endTest, ".eor" );
477 }
478 else{
479 strcat( simnfo->finalName, ".eor" );
480 }
481 }
482 }
483
484 // make the sample and status out names
485
486 strcpy( simnfo->sampleName, inFileName );
487 char* endTest;
488 int nameLength = strlen( simnfo->sampleName );
489 endTest = &(simnfo->sampleName[nameLength - 5]);
490 if( !strcmp( endTest, ".bass" ) ){
491 strcpy( endTest, ".dump" );
492 }
493 else if( !strcmp( endTest, ".BASS" ) ){
494 strcpy( endTest, ".dump" );
495 }
496 else{
497 endTest = &(simnfo->sampleName[nameLength - 4]);
498 if( !strcmp( endTest, ".bss" ) ){
499 strcpy( endTest, ".dump" );
500 }
501 else if( !strcmp( endTest, ".mdl" ) ){
502 strcpy( endTest, ".dump" );
503 }
504 else{
505 strcat( simnfo->sampleName, ".dump" );
506 }
507 }
508
509 strcpy( simnfo->statusName, inFileName );
510 nameLength = strlen( simnfo->statusName );
511 endTest = &(simnfo->statusName[nameLength - 5]);
512 if( !strcmp( endTest, ".bass" ) ){
513 strcpy( endTest, ".stat" );
514 }
515 else if( !strcmp( endTest, ".BASS" ) ){
516 strcpy( endTest, ".stat" );
517 }
518 else{
519 endTest = &(simnfo->statusName[nameLength - 4]);
520 if( !strcmp( endTest, ".bss" ) ){
521 strcpy( endTest, ".stat" );
522 }
523 else if( !strcmp( endTest, ".mdl" ) ){
524 strcpy( endTest, ".stat" );
525 }
526 else{
527 strcat( simnfo->statusName, ".stat" );
528 }
529 }
530
531 #ifdef IS_MPI
532 }
533 #endif // is_mpi
534
535 // set the status, sample, and themal kick times
536
537 if( the_globals->haveSampleTime() ){
538 simnfo->sampleTime = the_globals->getSampleTime();
539 simnfo->statusTime = simnfo->sampleTime;
540 simnfo->thermalTime = simnfo->sampleTime;
541 }
542 else{
543 simnfo->sampleTime = the_globals->getRunTime();
544 simnfo->statusTime = simnfo->sampleTime;
545 simnfo->thermalTime = simnfo->sampleTime;
546 }
547
548 if( the_globals->haveStatusTime() ){
549 simnfo->statusTime = the_globals->getStatusTime();
550 }
551
552 if( the_globals->haveThermalTime() ){
553 simnfo->thermalTime = the_globals->getThermalTime();
554 }
555
556 // check for the temperature set flag
557
558 if( the_globals->haveTempSet() ) simnfo->setTemp = the_globals->getTempSet();
559
560
561 // make the longe range forces and the integrator
562
563 new AllLong( simnfo );
564
565 if( !strcmp( force_field, "TraPPE" ) ) new Verlet( *simnfo );
566 if( !strcmp( force_field, "DipoleTest" ) ) new Symplectic( simnfo );
567 if( !strcmp( force_field, "TraPPE_Ex" ) ) new Symplectic( simnfo );
568 }
569
570 void SimSetup::makeAtoms( void ){
571
572 int i, j, k, index;
573 double ux, uy, uz, uSqr, u;
574 AtomStamp* current_atom;
575 DirectionalAtom* dAtom;
576 int molIndex, molStart, molEnd, nMemb, lMolIndex;
577
578 lMolIndex = 0;
579 molIndex = 0;
580 index = 0;
581 for( i=0; i<n_components; i++ ){
582
583 for( j=0; j<components_nmol[i]; j++ ){
584
585 #ifdef IS_MPI
586 if( simnfo->mpiSim->getMyMolStart() <= molIndex &&
587 molIndex <= simnfo->mpiSim->getMyMolEnd() ){
588 #endif // is_mpi
589
590 molStart = index;
591 nMemb = comp_stamps[i]->getNAtoms();
592 for( k=0; k<comp_stamps[i]->getNAtoms(); k++ ){
593
594 current_atom = comp_stamps[i]->getAtom( k );
595 if( current_atom->haveOrientation() ){
596
597 dAtom = new DirectionalAtom(index);
598 simnfo->n_oriented++;
599 the_atoms[index] = dAtom;
600
601 ux = current_atom->getOrntX();
602 uy = current_atom->getOrntY();
603 uz = current_atom->getOrntZ();
604
605 uSqr = (ux * ux) + (uy * uy) + (uz * uz);
606
607 u = sqrt( uSqr );
608 ux = ux / u;
609 uy = uy / u;
610 uz = uz / u;
611
612 dAtom->setSUx( ux );
613 dAtom->setSUy( uy );
614 dAtom->setSUz( uz );
615 }
616 else{
617 the_atoms[index] = new GeneralAtom(index);
618 }
619 the_atoms[index]->setType( current_atom->getType() );
620 the_atoms[index]->setIndex( index );
621
622 // increment the index and repeat;
623 index++;
624 }
625
626 molEnd = index -1;
627 the_molecules[lMolIndex].setNMembers( nMemb );
628 the_molecules[lMolIndex].setStartAtom( molStart );
629 the_molecules[lMolIndex].setEndAtom( molEnd );
630 the_molecules[lMolIndex].setStampID( i );
631 lMolIndex++;
632
633 #ifdef IS_MPI
634 }
635 #endif //is_mpi
636
637 molIndex++;
638 }
639 }
640
641 the_ff->initializeAtoms();
642 }
643
644 void SimSetup::makeBonds( void ){
645
646 int i, j, k, index, offset, molIndex;
647 bond_pair* the_bonds;
648 BondStamp* current_bond;
649
650 the_bonds = new bond_pair[tot_bonds];
651 index = 0;
652 offset = 0;
653 molIndex = 0;
654 for( i=0; i<n_components; i++ ){
655
656 for( j=0; j<components_nmol[i]; j++ ){
657
658 #ifdef IS_MPI
659 if( simnfo->mpiSim->getMyMolStart() <= molIndex &&
660 molIndex <= simnfo->mpiSim->getMyMolEnd() ){
661 #endif // is_mpi
662
663 for( k=0; k<comp_stamps[i]->getNBonds(); k++ ){
664
665 current_bond = comp_stamps[i]->getBond( k );
666 the_bonds[index].a = current_bond->getA() + offset;
667 the_bonds[index].b = current_bond->getB() + offset;
668
669 the_excludes[index].i = the_bonds[index].a;
670 the_excludes[index].j = the_bonds[index].b;
671
672 // increment the index and repeat;
673 index++;
674 }
675 offset += comp_stamps[i]->getNAtoms();
676
677 #ifdef IS_MPI
678 }
679 #endif is_mpi
680
681 molIndex++;
682 }
683 }
684
685 the_ff->initializeBonds( the_bonds );
686 }
687
688 void SimSetup::makeBends( void ){
689
690 int i, j, k, index, offset, molIndex;
691 bend_set* the_bends;
692 BendStamp* current_bend;
693
694 the_bends = new bend_set[tot_bends];
695 index = 0;
696 offset = 0;
697 molIndex = 0;
698 for( i=0; i<n_components; i++ ){
699
700 for( j=0; j<components_nmol[i]; j++ ){
701
702 #ifdef IS_MPI
703 if( simnfo->mpiSim->getMyMolStart() <= molIndex &&
704 molIndex <= simnfo->mpiSim->getMyMolEnd() ){
705 #endif // is_mpi
706
707 for( k=0; k<comp_stamps[i]->getNBends(); k++ ){
708
709 current_bend = comp_stamps[i]->getBend( k );
710 the_bends[index].a = current_bend->getA() + offset;
711 the_bends[index].b = current_bend->getB() + offset;
712 the_bends[index].c = current_bend->getC() + offset;
713
714 the_excludes[index + tot_bonds].i = the_bends[index].a;
715 the_excludes[index + tot_bonds].j = the_bends[index].c;
716
717 // increment the index and repeat;
718 index++;
719 }
720 offset += comp_stamps[i]->getNAtoms();
721
722 #ifdef IS_MPI
723 }
724 #endif //is_mpi
725
726 molIndex++;
727 }
728 }
729
730 the_ff->initializeBends( the_bends );
731 }
732
733 void SimSetup::makeTorsions( void ){
734
735 int i, j, k, index, offset, molIndex;
736 torsion_set* the_torsions;
737 TorsionStamp* current_torsion;
738
739 the_torsions = new torsion_set[tot_torsions];
740 index = 0;
741 offset = 0;
742 molIndex = 0;
743 for( i=0; i<n_components; i++ ){
744
745 for( j=0; j<components_nmol[i]; j++ ){
746
747 #ifdef IS_MPI
748 if( simnfo->mpiSim->getMyMolStart() <= molIndex &&
749 molIndex <= simnfo->mpiSim->getMyMolEnd() ){
750 #endif // is_mpi
751
752 for( k=0; k<comp_stamps[i]->getNTorsions(); k++ ){
753
754 current_torsion = comp_stamps[i]->getTorsion( k );
755 the_torsions[index].a = current_torsion->getA() + offset;
756 the_torsions[index].b = current_torsion->getB() + offset;
757 the_torsions[index].c = current_torsion->getC() + offset;
758 the_torsions[index].d = current_torsion->getD() + offset;
759
760 the_excludes[index + tot_bonds + tot_bends].i = the_torsions[index].a;
761 the_excludes[index + tot_bonds + tot_bends].j = the_torsions[index].d;
762
763 // increment the index and repeat;
764 index++;
765 }
766 offset += comp_stamps[i]->getNAtoms();
767
768 #ifdef IS_MPI
769 }
770 #endif //is_mpi
771
772 molIndex++;
773 }
774 }
775
776 the_ff->initializeTorsions( the_torsions );
777 }
778
779 void SimSetup::initFromBass( void ){
780
781 int i, j, k;
782 int n_cells;
783 double cellx, celly, cellz;
784 double temp1, temp2, temp3;
785 int n_per_extra;
786 int n_extra;
787 int have_extra, done;
788
789 temp1 = (double)tot_nmol / 4.0;
790 temp2 = pow( temp1, ( 1.0 / 3.0 ) );
791 temp3 = ceil( temp2 );
792
793 have_extra =0;
794 if( temp2 < temp3 ){ // we have a non-complete lattice
795 have_extra =1;
796
797 n_cells = (int)temp3 - 1;
798 cellx = simnfo->box_x / temp3;
799 celly = simnfo->box_y / temp3;
800 cellz = simnfo->box_z / temp3;
801 n_extra = tot_nmol - ( 4 * n_cells * n_cells * n_cells );
802 temp1 = ((double)n_extra) / ( pow( temp3, 3.0 ) - pow( n_cells, 3.0 ) );
803 n_per_extra = (int)ceil( temp1 );
804
805 if( n_per_extra > 4){
806 sprintf( painCave.errMsg,
807 "SimSetup error. There has been an error in constructing"
808 " the non-complete lattice.\n" );
809 painCave.isFatal = 1;
810 simError();
811 }
812 }
813 else{
814 n_cells = (int)temp3;
815 cellx = simnfo->box_x / temp3;
816 celly = simnfo->box_y / temp3;
817 cellz = simnfo->box_z / temp3;
818 }
819
820 current_mol = 0;
821 current_comp_mol = 0;
822 current_comp = 0;
823 current_atom_ndx = 0;
824
825 for( i=0; i < n_cells ; i++ ){
826 for( j=0; j < n_cells; j++ ){
827 for( k=0; k < n_cells; k++ ){
828
829 makeElement( i * cellx,
830 j * celly,
831 k * cellz );
832
833 makeElement( i * cellx + 0.5 * cellx,
834 j * celly + 0.5 * celly,
835 k * cellz );
836
837 makeElement( i * cellx,
838 j * celly + 0.5 * celly,
839 k * cellz + 0.5 * cellz );
840
841 makeElement( i * cellx + 0.5 * cellx,
842 j * celly,
843 k * cellz + 0.5 * cellz );
844 }
845 }
846 }
847
848 if( have_extra ){
849 done = 0;
850
851 int start_ndx;
852 for( i=0; i < (n_cells+1) && !done; i++ ){
853 for( j=0; j < (n_cells+1) && !done; j++ ){
854
855 if( i < n_cells ){
856
857 if( j < n_cells ){
858 start_ndx = n_cells;
859 }
860 else start_ndx = 0;
861 }
862 else start_ndx = 0;
863
864 for( k=start_ndx; k < (n_cells+1) && !done; k++ ){
865
866 makeElement( i * cellx,
867 j * celly,
868 k * cellz );
869 done = ( current_mol >= tot_nmol );
870
871 if( !done && n_per_extra > 1 ){
872 makeElement( i * cellx + 0.5 * cellx,
873 j * celly + 0.5 * celly,
874 k * cellz );
875 done = ( current_mol >= tot_nmol );
876 }
877
878 if( !done && n_per_extra > 2){
879 makeElement( i * cellx,
880 j * celly + 0.5 * celly,
881 k * cellz + 0.5 * cellz );
882 done = ( current_mol >= tot_nmol );
883 }
884
885 if( !done && n_per_extra > 3){
886 makeElement( i * cellx + 0.5 * cellx,
887 j * celly,
888 k * cellz + 0.5 * cellz );
889 done = ( current_mol >= tot_nmol );
890 }
891 }
892 }
893 }
894 }
895
896
897 for( i=0; i<simnfo->n_atoms; i++ ){
898 simnfo->atoms[i]->set_vx( 0.0 );
899 simnfo->atoms[i]->set_vy( 0.0 );
900 simnfo->atoms[i]->set_vz( 0.0 );
901 }
902 }
903
904 void SimSetup::makeElement( double x, double y, double z ){
905
906 int k;
907 AtomStamp* current_atom;
908 DirectionalAtom* dAtom;
909 double rotMat[3][3];
910
911 for( k=0; k<comp_stamps[current_comp]->getNAtoms(); k++ ){
912
913 current_atom = comp_stamps[current_comp]->getAtom( k );
914 if( !current_atom->havePosition() ){
915 sprintf( painCave.errMsg,
916 "SimSetup:initFromBass error.\n"
917 "\tComponent %s, atom %s does not have a position specified.\n"
918 "\tThe initialization routine is unable to give a start"
919 " position.\n",
920 comp_stamps[current_comp]->getID(),
921 current_atom->getType() );
922 painCave.isFatal = 1;
923 simError();
924 }
925
926 the_atoms[current_atom_ndx]->setX( x + current_atom->getPosX() );
927 the_atoms[current_atom_ndx]->setY( y + current_atom->getPosY() );
928 the_atoms[current_atom_ndx]->setZ( z + current_atom->getPosZ() );
929
930 if( the_atoms[current_atom_ndx]->isDirectional() ){
931
932 dAtom = (DirectionalAtom *)the_atoms[current_atom_ndx];
933
934 rotMat[0][0] = 1.0;
935 rotMat[0][1] = 0.0;
936 rotMat[0][2] = 0.0;
937
938 rotMat[1][0] = 0.0;
939 rotMat[1][1] = 1.0;
940 rotMat[1][2] = 0.0;
941
942 rotMat[2][0] = 0.0;
943 rotMat[2][1] = 0.0;
944 rotMat[2][2] = 1.0;
945
946 dAtom->setA( rotMat );
947 }
948
949 current_atom_ndx++;
950 }
951
952 current_mol++;
953 current_comp_mol++;
954
955 if( current_comp_mol >= components_nmol[current_comp] ){
956
957 current_comp_mol = 0;
958 current_comp++;
959 }
960 }