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root/group/trunk/mdtools/interface_implementation/SimSetup.cpp
Revision: 124
Committed: Mon Sep 30 20:35:42 2002 UTC (21 years, 9 months ago) by chuckv
File size: 16950 byte(s)
Log Message:
*** empty log message ***

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 "mpiInterface.h"
10
11 SimSetup::SimSetup(){
12 stamps = new MakeStamps();
13 globals = new Globals();
14 }
15
16 SimSetup::~SimSetup(){
17 delete stamps;
18 delete globals;
19 }
20
21 void SimSetup::parseFile( char* fileName ){
22
23 inFileName = fileName;
24 set_interface_stamps( stamps, globals );
25 #ifdef MPI
26 mpiEventInit();
27 #endif
28 yacc_BASS( fileName );
29 #ifdef MPI
30 throwMPIEvent(NULL);
31 #endif
32
33 }
34
35 #ifdef MPI
36 void SimSetup::receiveParse(void){
37
38 set_interface_stamps( stamps, globals );
39 mpiEventInit();
40 mpiEventLoop();
41
42 }
43 #endif
44
45 void SimSetup::createSim( void ){
46
47 MakeStamps *the_stamps;
48 Globals* the_globals;
49 int i;
50
51 // get the stamps and globals;
52 the_stamps = stamps;
53 the_globals = globals;
54
55 // set the easy ones first
56 simnfo->target_temp = the_globals->getTargetTemp();
57 simnfo->dt = the_globals->getDt();
58 simnfo->run_time = the_globals->getRunTime();
59
60 // get the ones we know are there, yet still may need some work.
61 n_components = the_globals->getNComponents();
62 strcpy( force_field, the_globals->getForceField() );
63 strcpy( ensemble, the_globals->getEnsemble() );
64
65 if( !strcmp( force_field, "TraPPE" ) ) the_ff = new TraPPEFF();
66 else if( !strcmp( force_field, "DipoleTest" ) ) the_ff = new DipoleTestFF();
67 else if( !strcmp( force_field, "TraPPE_Ex" ) ) the_ff = new TraPPE_ExFF();
68 else{
69 std::cerr<< "SimSetup Error. Unrecognized force field -> "
70 << force_field << "\n";
71 exit(8);
72 }
73
74 // get the components and calculate the tot_nMol and indvidual n_mol
75 the_components = the_globals->getComponents();
76 components_nmol = new int[n_components];
77 comp_stamps = new MoleculeStamp*[n_components];
78
79 if( !the_globals->haveNMol() ){
80 // we don't have the total number of molecules, so we assume it is
81 // given in each component
82
83 tot_nmol = 0;
84 for( i=0; i<n_components; i++ ){
85
86 if( !the_components[i]->haveNMol() ){
87 // we have a problem
88 std::cerr << "SimSetup Error. No global NMol or component NMol"
89 << " given. Cannot calculate the number of atoms.\n";
90 exit( 8 );
91 }
92
93 tot_nmol += the_components[i]->getNMol();
94 components_nmol[i] = the_components[i]->getNMol();
95 }
96 }
97 else{
98 std::cerr << "NOT A SUPPORTED FEATURE\n";
99
100 // tot_nmol = the_globals->getNMol();
101
102 // //we have the total number of molecules, now we check for molfractions
103 // for( i=0; i<n_components; i++ ){
104
105 // if( !the_components[i]->haveMolFraction() ){
106
107 // if( !the_components[i]->haveNMol() ){
108 // //we have a problem
109 // std::cerr << "SimSetup error. Neither molFraction nor "
110 // << " nMol was given in component
111
112 }
113
114 // make an array of molecule stamps that match the components used.
115
116 for( i=0; i<n_components; i++ ){
117
118 comp_stamps[i] =
119 the_stamps->getMolecule( the_components[i]->getType() );
120 }
121
122
123
124 // caclulate the number of atoms, bonds, bends and torsions
125
126 tot_atoms = 0;
127 tot_bonds = 0;
128 tot_bends = 0;
129 tot_torsions = 0;
130 for( i=0; i<n_components; i++ ){
131
132 tot_atoms += components_nmol[i] * comp_stamps[i]->getNAtoms();
133 tot_bonds += components_nmol[i] * comp_stamps[i]->getNBonds();
134 tot_bends += components_nmol[i] * comp_stamps[i]->getNBends();
135 tot_torsions += components_nmol[i] * comp_stamps[i]->getNTorsions();
136 }
137
138 tot_SRI = tot_bonds + tot_bends + tot_torsions;
139
140 simnfo->n_atoms = tot_atoms;
141 simnfo->n_bonds = tot_bonds;
142 simnfo->n_bends = tot_bends;
143 simnfo->n_torsions = tot_torsions;
144 simnfo->n_SRI = tot_SRI;
145
146 // create the atom and short range interaction arrays
147
148 the_atoms = new Atom*[tot_atoms];
149 the_molecules = new Molecule[tot_nmol];
150
151
152 if( tot_SRI ){
153 the_sris = new SRI*[tot_SRI];
154 the_excludes = new ex_pair[tot_SRI];
155 }
156
157 // set the arrays into the SimInfo object
158
159 simnfo->atoms = the_atoms;
160 simnfo->sr_interactions = the_sris;
161 simnfo->n_exclude = tot_SRI;
162 simnfo->excludes = the_excludes;
163
164
165 // initialize the arrays
166
167 the_ff->setSimInfo( simnfo );
168
169 makeAtoms();
170
171 if( tot_bonds ){
172 makeBonds();
173 }
174
175 if( tot_bends ){
176 makeBends();
177 }
178
179 if( tot_torsions ){
180 makeTorsions();
181 }
182
183 // makeMolecules();
184
185 // get some of the tricky things that may still be in the globals
186
187 if( simnfo->n_dipoles ){
188
189 if( !the_globals->haveRRF() ){
190 std::cerr << "SimSetup Error, system has dipoles, but no rRF was set.\n";
191 exit(8);
192 }
193 if( !the_globals->haveDielectric() ){
194 std::cerr << "SimSetup Error, system has dipoles, but no"
195 << " dielectric was set.\n";
196 exit(8);
197 }
198
199 simnfo->rRF = the_globals->getRRF();
200 simnfo->dielectric = the_globals->getDielectric();
201 }
202
203 if( the_globals->haveBox() ){
204 simnfo->box_x = the_globals->getBox();
205 simnfo->box_y = the_globals->getBox();
206 simnfo->box_z = the_globals->getBox();
207 }
208 else if( the_globals->haveDensity() ){
209
210 double vol;
211 vol = (double)tot_nmol / the_globals->getDensity();
212 simnfo->box_x = pow( vol, ( 1.0 / 3.0 ) );
213 simnfo->box_y = simnfo->box_x;
214 simnfo->box_z = simnfo->box_x;
215 }
216 else{
217 if( !the_globals->haveBoxX() ){
218 std::cerr << "SimSetup error, no periodic BoxX size given.\n";
219 exit(8);
220 }
221 simnfo->box_x = the_globals->getBoxX();
222
223 if( !the_globals->haveBoxY() ){
224 std::cerr << "SimSetup error, no periodic BoxY size given.\n";
225 exit(8);
226 }
227 simnfo->box_y = the_globals->getBoxY();
228
229 if( !the_globals->haveBoxZ() ){
230 std::cerr << "SimSetup error, no periodic BoxZ size given.\n";
231 exit(8);
232 }
233 simnfo->box_z = the_globals->getBoxZ();
234 }
235
236
237 // if( the_globals->haveInitialConfig() ){
238 // InitializeFromFile* fileInit;
239 // fileInit = new InitializeFromFile( the_globals->getInitialConfig() );
240
241 // fileInit->read_xyz( simnfo ); // default velocities on
242
243 // delete fileInit;
244 // }
245 // else{
246
247 initFromBass();
248
249
250 // }
251
252 // if( the_globals->haveFinalConfig() ){
253 // strcpy( simnfo->finalName, the_globals->getFinalConfig() );
254 // }
255 // else{
256 // strcpy( simnfo->finalName, inFileName );
257 // char* endTest;
258 // int nameLength = strlen( simnfo->finalName );
259 // endTest = &(simnfo->finalName[nameLength - 5]);
260 // if( !strcmp( endTest, ".bass" ) ){
261 // strcpy( endTest, ".eor" );
262 // }
263 // else if( !strcmp( endTest, ".BASS" ) ){
264 // strcpy( endTest, ".eor" );
265 // }
266 // else{
267 // endTest = &(simnfo->finalName[nameLength - 4]);
268 // if( !strcmp( endTest, ".bss" ) ){
269 // strcpy( endTest, ".eor" );
270 // }
271 // else if( !strcmp( endTest, ".mdl" ) ){
272 // strcpy( endTest, ".eor" );
273 // }
274 // else{
275 // strcat( simnfo->finalName, ".eor" );
276 // }
277 // }
278 // }
279
280 // // make the sample and status out names
281
282 // strcpy( simnfo->sampleName, inFileName );
283 // char* endTest;
284 // int nameLength = strlen( simnfo->sampleName );
285 // endTest = &(simnfo->sampleName[nameLength - 5]);
286 // if( !strcmp( endTest, ".bass" ) ){
287 // strcpy( endTest, ".dump" );
288 // }
289 // else if( !strcmp( endTest, ".BASS" ) ){
290 // strcpy( endTest, ".dump" );
291 // }
292 // else{
293 // endTest = &(simnfo->sampleName[nameLength - 4]);
294 // if( !strcmp( endTest, ".bss" ) ){
295 // strcpy( endTest, ".dump" );
296 // }
297 // else if( !strcmp( endTest, ".mdl" ) ){
298 // strcpy( endTest, ".dump" );
299 // }
300 // else{
301 // strcat( simnfo->sampleName, ".dump" );
302 // }
303 // }
304
305 // strcpy( simnfo->statusName, inFileName );
306 // nameLength = strlen( simnfo->statusName );
307 // endTest = &(simnfo->statusName[nameLength - 5]);
308 // if( !strcmp( endTest, ".bass" ) ){
309 // strcpy( endTest, ".stat" );
310 // }
311 // else if( !strcmp( endTest, ".BASS" ) ){
312 // strcpy( endTest, ".stat" );
313 // }
314 // else{
315 // endTest = &(simnfo->statusName[nameLength - 4]);
316 // if( !strcmp( endTest, ".bss" ) ){
317 // strcpy( endTest, ".stat" );
318 // }
319 // else if( !strcmp( endTest, ".mdl" ) ){
320 // strcpy( endTest, ".stat" );
321 // }
322 // else{
323 // strcat( simnfo->statusName, ".stat" );
324 // }
325 // }
326
327
328 // set the status, sample, and themal kick times
329
330 if( the_globals->haveSampleTime() ){
331 simnfo->sampleTime = the_globals->getSampleTime();
332 simnfo->statusTime = simnfo->sampleTime;
333 simnfo->thermalTime = simnfo->sampleTime;
334 }
335 else{
336 simnfo->sampleTime = the_globals->getRunTime();
337 simnfo->statusTime = simnfo->sampleTime;
338 simnfo->thermalTime = simnfo->sampleTime;
339 }
340
341 if( the_globals->haveStatusTime() ){
342 simnfo->statusTime = the_globals->getStatusTime();
343 }
344
345 if( the_globals->haveThermalTime() ){
346 simnfo->thermalTime = the_globals->getThermalTime();
347 }
348
349 // check for the temperature set flag
350
351 if( the_globals->haveTempSet() ) simnfo->setTemp = the_globals->getTempSet();
352
353
354 // make the longe range forces and the integrator
355
356 new AllLong( simnfo );
357
358 if( !strcmp( force_field, "TraPPE" ) ) new Verlet( *simnfo );
359 if( !strcmp( force_field, "DipoleTest" ) ) new Symplectic( simnfo );
360 if( !strcmp( force_field, "TraPPE_Ex" ) ) new Symplectic( simnfo );
361 }
362
363 void SimSetup::makeAtoms( void ){
364
365 int i, j, k, index;
366 double ux, uy, uz, uSqr, u;
367 AtomStamp* current_atom;
368 DirectionalAtom* dAtom;
369 int molIndex, molStart, molEnd, nMemb;
370
371
372 molIndex = 0;
373 index = 0;
374 for( i=0; i<n_components; i++ ){
375
376 for( j=0; j<components_nmol[i]; j++ ){
377
378 molStart = index;
379 nMemb = comp_stamps[i]->getNAtoms();
380 for( k=0; k<comp_stamps[i]->getNAtoms(); k++ ){
381
382 current_atom = comp_stamps[i]->getAtom( k );
383 if( current_atom->haveOrientation() ){
384
385 dAtom = new DirectionalAtom;
386 simnfo->n_oriented++;
387 the_atoms[index] = dAtom;
388
389 ux = current_atom->getOrntX();
390 uy = current_atom->getOrntY();
391 uz = current_atom->getOrntZ();
392
393 uSqr = (ux * ux) + (uy * uy) + (uz * uz);
394
395 u = sqrt( uSqr );
396 ux = ux / u;
397 uy = uy / u;
398 uz = uz / u;
399
400 dAtom->setSUx( ux );
401 dAtom->setSUy( uy );
402 dAtom->setSUz( uz );
403 }
404 else{
405 the_atoms[index] = new GeneralAtom;
406 }
407 the_atoms[index]->setType( current_atom->getType() );
408 the_atoms[index]->setIndex( index );
409
410 // increment the index and repeat;
411 index++;
412 }
413
414 molEnd = index -1;
415 the_molecules[molIndex].setNMembers( nMemb );
416 the_molecules[molIndex].setStartAtom( molStart );
417 the_molecules[molIndex].setEndAtom( molEnd );
418 molIndex++;
419
420 }
421 }
422
423 the_ff->initializeAtoms();
424 }
425
426 void SimSetup::makeBonds( void ){
427
428 int i, j, k, index, offset;
429 bond_pair* the_bonds;
430 BondStamp* current_bond;
431
432 the_bonds = new bond_pair[tot_bonds];
433 index = 0;
434 offset = 0;
435 for( i=0; i<n_components; i++ ){
436
437 for( j=0; j<components_nmol[i]; j++ ){
438
439 for( k=0; k<comp_stamps[i]->getNBonds(); k++ ){
440
441 current_bond = comp_stamps[i]->getBond( k );
442 the_bonds[index].a = current_bond->getA() + offset;
443 the_bonds[index].b = current_bond->getB() + offset;
444
445 the_excludes[index].i = the_bonds[index].a;
446 the_excludes[index].j = the_bonds[index].b;
447
448 // increment the index and repeat;
449 index++;
450 }
451 offset += comp_stamps[i]->getNAtoms();
452 }
453 }
454
455 the_ff->initializeBonds( the_bonds );
456 }
457
458 void SimSetup::makeBends( void ){
459
460 int i, j, k, index, offset;
461 bend_set* the_bends;
462 BendStamp* current_bend;
463
464 the_bends = new bend_set[tot_bends];
465 index = 0;
466 offset = 0;
467 for( i=0; i<n_components; i++ ){
468
469 for( j=0; j<components_nmol[i]; j++ ){
470
471 for( k=0; k<comp_stamps[i]->getNBends(); k++ ){
472
473 current_bend = comp_stamps[i]->getBend( k );
474 the_bends[index].a = current_bend->getA() + offset;
475 the_bends[index].b = current_bend->getB() + offset;
476 the_bends[index].c = current_bend->getC() + offset;
477
478 the_excludes[index + tot_bonds].i = the_bends[index].a;
479 the_excludes[index + tot_bonds].j = the_bends[index].c;
480
481 // increment the index and repeat;
482 index++;
483 }
484 offset += comp_stamps[i]->getNAtoms();
485 }
486 }
487
488 the_ff->initializeBends( the_bends );
489 }
490
491 void SimSetup::makeTorsions( void ){
492
493 int i, j, k, index, offset;
494 torsion_set* the_torsions;
495 TorsionStamp* current_torsion;
496
497 the_torsions = new torsion_set[tot_torsions];
498 index = 0;
499 offset = 0;
500 for( i=0; i<n_components; i++ ){
501
502 for( j=0; j<components_nmol[i]; j++ ){
503
504 for( k=0; k<comp_stamps[i]->getNTorsions(); k++ ){
505
506 current_torsion = comp_stamps[i]->getTorsion( k );
507 the_torsions[index].a = current_torsion->getA() + offset;
508 the_torsions[index].b = current_torsion->getB() + offset;
509 the_torsions[index].c = current_torsion->getC() + offset;
510 the_torsions[index].d = current_torsion->getD() + offset;
511
512 the_excludes[index + tot_bonds + tot_bends].i = the_torsions[index].a;
513 the_excludes[index + tot_bonds + tot_bends].j = the_torsions[index].d;
514
515 // increment the index and repeat;
516 index++;
517 }
518 offset += comp_stamps[i]->getNAtoms();
519 }
520 }
521
522 the_ff->initializeTorsions( the_torsions );
523 }
524
525 void SimSetup::initFromBass( void ){
526
527 int i, j, k;
528 int n_cells;
529 double cellx, celly, cellz;
530 double temp1, temp2, temp3;
531 int n_per_extra;
532 int n_extra;
533 int have_extra, done;
534
535 temp1 = (double)tot_nmol / 4.0;
536 temp2 = pow( temp1, ( 1.0 / 3.0 ) );
537 temp3 = ceil( temp2 );
538
539 have_extra =0;
540 if( temp2 < temp3 ){ // we have a non-complete lattice
541 have_extra =1;
542
543 n_cells = (int)temp3 - 1;
544 cellx = simnfo->box_x / temp3;
545 celly = simnfo->box_y / temp3;
546 cellz = simnfo->box_z / temp3;
547 n_extra = tot_nmol - ( 4 * n_cells * n_cells * n_cells );
548 temp1 = ((double)n_extra) / ( pow( temp3, 3.0 ) - pow( n_cells, 3.0 ) );
549 n_per_extra = (int)ceil( temp1 );
550
551 if( n_per_extra > 4){
552 std::cerr << "THere has been an error in constructing the non-complete lattice.\n";
553 exit(8);
554 }
555 }
556 else{
557 n_cells = (int)temp3;
558 cellx = simnfo->box_x / temp3;
559 celly = simnfo->box_y / temp3;
560 cellz = simnfo->box_z / temp3;
561 }
562
563 current_mol = 0;
564 current_comp_mol = 0;
565 current_comp = 0;
566 current_atom_ndx = 0;
567
568 for( i=0; i < n_cells ; i++ ){
569 for( j=0; j < n_cells; j++ ){
570 for( k=0; k < n_cells; k++ ){
571
572 makeElement( i * cellx,
573 j * celly,
574 k * cellz );
575
576 makeElement( i * cellx + 0.5 * cellx,
577 j * celly + 0.5 * celly,
578 k * cellz );
579
580 makeElement( i * cellx,
581 j * celly + 0.5 * celly,
582 k * cellz + 0.5 * cellz );
583
584 makeElement( i * cellx + 0.5 * cellx,
585 j * celly,
586 k * cellz + 0.5 * cellz );
587 }
588 }
589 }
590
591 if( have_extra ){
592 done = 0;
593
594 int start_ndx;
595 for( i=0; i < (n_cells+1) && !done; i++ ){
596 for( j=0; j < (n_cells+1) && !done; j++ ){
597
598 if( i < n_cells ){
599
600 if( j < n_cells ){
601 start_ndx = n_cells;
602 }
603 else start_ndx = 0;
604 }
605 else start_ndx = 0;
606
607 for( k=start_ndx; k < (n_cells+1) && !done; k++ ){
608
609 makeElement( i * cellx,
610 j * celly,
611 k * cellz );
612 done = ( current_mol >= tot_nmol );
613
614 if( !done && n_per_extra > 1 ){
615 makeElement( i * cellx + 0.5 * cellx,
616 j * celly + 0.5 * celly,
617 k * cellz );
618 done = ( current_mol >= tot_nmol );
619 }
620
621 if( !done && n_per_extra > 2){
622 makeElement( i * cellx,
623 j * celly + 0.5 * celly,
624 k * cellz + 0.5 * cellz );
625 done = ( current_mol >= tot_nmol );
626 }
627
628 if( !done && n_per_extra > 3){
629 makeElement( i * cellx + 0.5 * cellx,
630 j * celly,
631 k * cellz + 0.5 * cellz );
632 done = ( current_mol >= tot_nmol );
633 }
634 }
635 }
636 }
637 }
638
639
640 for( i=0; i<simnfo->n_atoms; i++ ){
641 simnfo->atoms[i]->set_vx( 0.0 );
642 simnfo->atoms[i]->set_vy( 0.0 );
643 simnfo->atoms[i]->set_vz( 0.0 );
644 }
645 }
646
647 void SimSetup::makeElement( double x, double y, double z ){
648
649 int k;
650 AtomStamp* current_atom;
651 DirectionalAtom* dAtom;
652 double rotMat[3][3];
653
654 for( k=0; k<comp_stamps[current_comp]->getNAtoms(); k++ ){
655
656 current_atom = comp_stamps[current_comp]->getAtom( k );
657 if( !current_atom->havePosition() ){
658 std::cerr << "Component " << comp_stamps[current_comp]->getID()
659 << ", atom " << current_atom->getType()
660 << " does not have a position specified.\n"
661 << "The initialization routine is unable to give a start"
662 << " position.\n";
663 exit(8);
664 }
665
666 the_atoms[current_atom_ndx]->setX( x + current_atom->getPosX() );
667 the_atoms[current_atom_ndx]->setY( y + current_atom->getPosY() );
668 the_atoms[current_atom_ndx]->setZ( z + current_atom->getPosZ() );
669
670 if( the_atoms[current_atom_ndx]->isDirectional() ){
671
672 dAtom = (DirectionalAtom *)the_atoms[current_atom_ndx];
673
674 rotMat[0][0] = 1.0;
675 rotMat[0][1] = 0.0;
676 rotMat[0][2] = 0.0;
677
678 rotMat[1][0] = 0.0;
679 rotMat[1][1] = 1.0;
680 rotMat[1][2] = 0.0;
681
682 rotMat[2][0] = 0.0;
683 rotMat[2][1] = 0.0;
684 rotMat[2][2] = 1.0;
685
686 dAtom->setA( rotMat );
687 }
688
689 current_atom_ndx++;
690 }
691
692 current_mol++;
693 current_comp_mol++;
694
695 if( current_comp_mol >= components_nmol[current_comp] ){
696
697 current_comp_mol = 0;
698 current_comp++;
699 }
700 }