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root/group/branches/new_design/OOPSE-3.0/src/UseTheForce/DUFF.cpp
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Comparing:
trunk/OOPSE-3.0/src/UseTheForce/DUFF.cpp (file contents), Revision 1492 by tim, Fri Sep 24 16:27:58 2004 UTC vs.
branches/new_design/OOPSE-3.0/src/UseTheForce/DUFF.cpp (file contents), Revision 1741 by tim, Tue Nov 16 02:07:14 2004 UTC

# Line 1 | Line 1
1 < #include <stdlib.h>
2 < #include <stdio.h>
3 < #include <string.h>
1 > /*
2 > * Copyright (C) 2000-2004  Object Oriented Parallel Simulation Engine (OOPSE) project
3 > *
4 > * Contact: oopse@oopse.org
5 > *
6 > * This program is free software; you can redistribute it and/or
7 > * modify it under the terms of the GNU Lesser General Public License
8 > * as published by the Free Software Foundation; either version 2.1
9 > * of the License, or (at your option) any later version.
10 > * All we ask is that proper credit is given for our work, which includes
11 > * - but is not limited to - adding the above copyright notice to the beginning
12 > * of your source code files, and to any copyright notice that you may distribute
13 > * with programs based on this work.
14 > *
15 > * This program is distributed in the hope that it will be useful,
16 > * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 > * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18 > * GNU Lesser General Public License for more details.
19 > *
20 > * You should have received a copy of the GNU Lesser General Public License
21 > * along with this program; if not, write to the Free Software
22 > * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
23 > *
24 > */
25  
26 < #include <iostream>
27 < using namespace std;
26 > #include "UseTheForce/DUFF.hpp"
27 > #include "UseTheForce/DarkSide/lj_interface.h"
28  
29 < #include "UseTheForce/ForceFields.hpp"
9 < #include "primitives/SRI.hpp"
10 < #include "utils/simError.h"
29 > namespace oopse {
30  
31 < #include "UseTheForce/fortranWrappers.hpp"
31 > //definition of createDUFF
32 > ForceField* createDUFF() {
33 >    return new DUFF();
34 > }
35  
36 < #ifdef IS_MPI
37 < #include "UseTheForce/mpiForceField.h"
16 < #endif // is_mpi
36 > //register createDUFF to ForceFieldCreator
37 > ForceFieldFactory::getInstance()->registerForceField("DUFF", createDUFF);
38  
39 <
40 < // define some bond Types
41 <
42 < #define FIXED_BOND    0
43 < #define HARMONIC_BOND 1
44 <
45 <
25 < namespace DUFF_NS {  // restrict the access of the folowing to this file only.
26 <
27 <
28 <  // Declare the structures that will be passed by MPI
29 <  
30 <  typedef struct{
31 <    char name[15];
39 > void DUFF::parse(const std::string& filename) {
40 >    ifstrstream* ffStream;
41 >    ffStream = openForceFiledFile(filename);
42 >    const int bufferSize = 65535;
43 >    char line[bufferSize];
44 >    AtomType* atomType;
45 >    std::string atomTypeName;
46      double mass;
47 <    double epslon;
47 >    double epsilon;
48      double sigma;
49 <    double charge;
50 <    double dipole;
51 <    double w0;
38 <    double v0;
39 <    double v0p;
40 <    double rl;
41 <    double ru;
42 <    double rlp;
43 <    double rup;
44 <    int isSSD;
45 <    int isCharge;
46 <    int isDipole;
47 <    int ident;
48 <    int last;      //  0  -> default
49 <                   //  1  -> tells nodes to stop listening
50 <  } atomStruct;
51 <  
52 <  
53 <  typedef struct{
54 <    char nameA[15];
55 <    char nameB[15];
56 <    double d0;
57 <    double k0;
58 <    int last;      //  0  -> default
59 <                   //  1  -> tells nodes to stop listening
60 <    int type;
61 <  } bondStruct;
62 <  
63 <  
64 <  typedef struct{
65 <    char nameA[15];
66 <    char nameB[15];
67 <    char nameC[15];
68 <    char type[30];
69 <    double k1, k2, k3, t0;
70 <    int last;      //  0  -> default
71 <                   //  1  -> tells nodes to stop listening
72 <  } bendStruct;
73 <  
49 >    int status;
50 >    int ident = 1; //ident begins from 1 (fortran's index begins from 1)
51 >    int lineNo = 0;
52  
53 <  typedef struct{
54 <    char nameA[15];
77 <    char nameB[15];
78 <    char nameC[15];
79 <    char nameD[15];
80 <    char type[30];
81 <    double k1, k2, k3, k4;
82 <    int last;      //  0  -> default
83 <                   //  1  -> tells nodes to stop listening
84 <  } torsionStruct;
85 <  
86 <  
87 <  int parseAtom(    char *lineBuffer, int lineNum, atomStruct     &info );
88 <  int parseBond(    char *lineBuffer, int lineNum, bondStruct     &info );
89 <  int parseBend(    char *lineBuffer, int lineNum, bendStruct     &info );
90 <  int parseTorsion( char *lineBuffer, int lineNum, torsionStruct  &info );
91 <  
92 <  
93 < #ifdef IS_MPI
53 >    while(ffStream.getline(line, bufferSize)){
54 >        ++lineNo;
55  
56 <  MPI_Datatype mpiAtomStructType;
57 <  MPI_Datatype mpiBondStructType;
58 <  MPI_Datatype mpiBendStructType;
59 <  MPI_Datatype mpiTorsionStructType;
56 >        //a line begins with '#' or '!' is comment which is skipped
57 >        if (line[0] != '#' ||line[0] != '!') {
58 >            StringTokenizer tokenizer(line);
59 >            
60 >            if (tokenizer.countTokens() >= 4) {
61 >                atomTypeName = tokenizer.nextToken();
62 >                mass = tokenizer.nextTokenAsFloat();
63 >                epsilon = tokenizer.nextTokenAsFloat();
64 >                sigma = tokenizer.nextTokenAsFloat();
65  
66 < #endif
66 >                atomType = new AtomType();
67 >                atomType->setName(atomTypeName);
68 >                atomType->setMass(mass);
69 >                
70 >                //by default, all of the properties in AtomTypeProperties is set to 0
71 >                //In  Lennard-Jones Force Field, we only need to set Lennard-Jones to true
72 >                atomType->setLennardJones();
73  
74 <  class LinkedAtomType {
75 <  public:
76 <    LinkedAtomType(){
77 <      next = NULL;
78 <      name[0] = '\0';
79 <    }
108 <    ~LinkedAtomType(){ if( next != NULL ) delete next; }
74 >                atomType->setIdent(ident);
75 >                atomType->addProperty(new DoubleGenericData("Epsilon", epsilon));                                
76 >                atomType->addProperty(new DoubleGenericData("Sigma", sigma));                                
77 >                atomType->complete();
78 >                //notify a new LJtype atom type is created
79 >                newLJtype(&ident, &sigma, &epsilon, &status);
80  
81 <    LinkedAtomType* find(char* key){
82 <      if( !strcmp(name, key) ) return this;
83 <      if( next != NULL ) return next->find(key);
84 <      return NULL;
81 >                //add atom type to AtomTypeContainer
82 >                addAtomType(atomTypeName, atomType);
83 >                ++ident;
84 >                
85 >            } else {
86 >                sprintf( painCave.errMsg,
87 >                       "Not enough tokens when parsing Lennard-Jones Force Field : %s\n"
88 >                       "in line %d : %s\n",
89 >                       filename.c_str(), lineNo, line);
90 >                painCave.severity = OOPSE_ERROR;
91 >                painCave.isFatal = 1;
92 >                simError();                
93 >            }
94 >            
95 >        }
96      }
97      
98 <    void printMe( void ){
99 <      
118 <      std::cerr << "LinkedAtype " << name << ": ident = " << ident << "\n";
119 <      //      if( next != NULL ) next->printMe();
98 >    delete ffStream;
99 > }
100  
121    }
101  
102 <    void add( atomStruct &info ){
103 <
125 <      // check for duplicates
126 <      
127 <      if( !strcmp( info.name, name ) ){
128 <        sprintf( painCave.errMsg,
129 <                 "Duplicate DUFF atom type \"%s\" found in "
130 <                 "the DUFF param file./n",
131 <                 name );
132 <        painCave.isFatal = 1;
133 <        simError();
134 <      }
135 <
136 <      if( next != NULL ) next->add(info);
137 <      else{
138 <        next = new LinkedAtomType();
139 <        strcpy(next->name, info.name);
140 <        next->isDipole = info.isDipole;
141 <        next->isSSD    = info.isSSD;
142 <        next->mass     = info.mass;
143 <        next->epslon   = info.epslon;
144 <        next->sigma    = info.sigma;
145 <        next->dipole   = info.dipole;
146 <        next->w0       = info.w0;
147 <        next->v0       = info.v0;
148 <        next->v0p      = info.v0p;
149 <        next->rl       = info.rl;
150 <        next->ru       = info.ru;
151 <        next->rlp      = info.rlp;
152 <        next->rup      = info.rup;
153 <        next->ident    = info.ident;
154 <      }
155 <    }
156 <
157 < #ifdef IS_MPI
158 <    
159 <    void duplicate( atomStruct &info ){
160 <      strcpy(info.name, name);
161 <      info.isDipole = isDipole;
162 <      info.isSSD    = isSSD;
163 <      info.mass     = mass;
164 <      info.epslon   = epslon;
165 <      info.sigma    = sigma;
166 <      info.dipole   = dipole;
167 <      info.w0       = w0;
168 <      info.v0       = v0;
169 <      info.v0p      = v0p;
170 <      info.rl       = rl;
171 <      info.ru       = ru;
172 <      info.rlp      = rlp;
173 <      info.rup      = rup;
174 <      info.ident    = ident;
175 <      info.last     = 0;
176 <    }
102 > void DUFF::parseAtomType(){
103 > }
104  
105 <
179 < #endif
180 <
181 <    char name[15];
182 <    int isDipole;
183 <    int isSSD;
184 <    double mass;
185 <    double epslon;
186 <    double sigma;
187 <    double dipole;
188 <    double w0;
189 <    double v0;
190 <    double v0p;
191 <    double rl;
192 <    double ru;
193 <    double rlp;
194 <    double rup;
195 <    int ident;
196 <    LinkedAtomType* next;
197 <  };
198 <
199 <  class LinkedBondType {
200 <  public:
201 <    LinkedBondType(){
202 <      next = NULL;
203 <      nameA[0] = '\0';
204 <      nameB[0] = '\0';
205 <    }
206 <    ~LinkedBondType(){ if( next != NULL ) delete next; }
207 <
208 <    LinkedBondType* find(char* key1, char* key2){
209 <      if( !strcmp(nameA, key1 ) && !strcmp( nameB, key2 ) ) return this;
210 <      if( !strcmp(nameA, key2 ) && !strcmp( nameB, key1 ) ) return this;
211 <      if( next != NULL ) return next->find(key1, key2);
212 <      return NULL;
213 <    }
214 <    
215 <
216 <    void add( bondStruct &info ){
217 <      
218 <      // check for duplicates
219 <      int dup = 0;
220 <
221 <      if( !strcmp(nameA, info.nameA ) && !strcmp( nameB, info.nameB ) ) dup = 1;
222 <      if( !strcmp(nameA, info.nameB ) && !strcmp( nameB, info.nameA ) ) dup = 1;
223 <      
224 <      if(dup){
225 <        sprintf( painCave.errMsg,
226 <                 "Duplicate DUFF bond type \"%s - %s\" found in "
227 <                 "the DUFF param file./n",
228 <                 nameA, nameB );
229 <        painCave.isFatal = 1;
230 <        simError();
231 <      }
232 <
233 <        
234 <      if( next != NULL ) next->add(info);
235 <      else{
236 <        next = new LinkedBondType();
237 <        strcpy(next->nameA, info.nameA);
238 <        strcpy(next->nameB, info.nameB);
239 <        next->type = info.type;
240 <        next->d0 = info.d0;
241 <        next->k0 = info.k0;
242 <      }
243 <    }
244 <    
245 < #ifdef IS_MPI
246 <    void duplicate( bondStruct &info ){
247 <      strcpy(info.nameA, nameA);
248 <      strcpy(info.nameB, nameB);
249 <      info.type = type;
250 <      info.d0   = d0;
251 <      info.k0   = k0;
252 <      info.last = 0;
253 <    }
254 <
255 <
256 < #endif
257 <
258 <    char nameA[15];
259 <    char nameB[15];
260 <    int type;
261 <    double d0;
262 <    double k0;
263 <
264 <    LinkedBondType* next;
265 <  };
266 <
267 <  class LinkedBendType {
268 <  public:
269 <    LinkedBendType(){
270 <      next = NULL;
271 <      nameA[0] = '\0';
272 <      nameB[0] = '\0';
273 <      nameC[0] = '\0';
274 <      type[0] = '\0';
275 <    }
276 <    ~LinkedBendType(){ if( next != NULL ) delete next; }
277 <
278 <    LinkedBendType* find( char* key1, char* key2, char* key3 ){
279 <      if( !strcmp( nameA, key1 ) && !strcmp( nameB, key2 )
280 <          && !strcmp( nameC, key3 ) ) return this;
281 <      if( !strcmp( nameA, key3 ) && !strcmp( nameB, key2 )
282 <          && !strcmp( nameC, key1 ) ) return this;
283 <      if( next != NULL ) return next->find(key1, key2, key3);
284 <      return NULL;
285 <    }
286 <    
287 <    void add( bendStruct &info ){
288 <
289 <      // check for duplicates
290 <      int dup = 0;
291 <      
292 <      if( !strcmp( nameA, info.nameA ) && !strcmp( nameB, info.nameB )
293 <          && !strcmp( nameC, info.nameC ) ) dup = 1;
294 <      if( !strcmp( nameA, info.nameC ) && !strcmp( nameB, info.nameB )
295 <          && !strcmp( nameC, info.nameA ) ) dup = 1;
296 <
297 <      if(dup){
298 <        sprintf( painCave.errMsg,
299 <                 "Duplicate DUFF bend type \"%s - %s - %s\" found in "
300 <                 "the DUFF param file./n",
301 <                 nameA, nameB, nameC );
302 <        painCave.isFatal = 1;
303 <        simError();
304 <      }
305 <
306 <      if( next != NULL ) next->add(info);
307 <      else{
308 <        next = new LinkedBendType();
309 <        strcpy(next->nameA, info.nameA);
310 <        strcpy(next->nameB, info.nameB);
311 <        strcpy(next->nameC, info.nameC);
312 <        strcpy(next->type,  info.type);
313 <        next->k1 = info.k1;
314 <        next->k2 = info.k2;
315 <        next->k3 = info.k3;
316 <        next->t0 = info.t0;
317 <      }
318 <    }
319 <
320 < #ifdef IS_MPI    
321 <
322 <    void duplicate( bendStruct &info ){
323 <      strcpy(info.nameA, nameA);
324 <      strcpy(info.nameB, nameB);
325 <      strcpy(info.nameC, nameC);
326 <      strcpy(info.type,  type);
327 <      info.k1   = k1;
328 <      info.k2   = k2;
329 <      info.k3   = k3;
330 <      info.t0   = t0;
331 <      info.last = 0;
332 <    }
333 <
334 < #endif // is_mpi
335 <
336 <    char nameA[15];
337 <    char nameB[15];
338 <    char nameC[15];
339 <    char type[30];
340 <    double k1, k2, k3, t0;
341 <
342 <    LinkedBendType* next;
343 <  };
344 <
345 <  class LinkedTorsionType {
346 <  public:
347 <    LinkedTorsionType(){
348 <      next = NULL;
349 <      nameA[0] = '\0';
350 <      nameB[0] = '\0';
351 <      nameC[0] = '\0';
352 <      type[0] = '\0';
353 <    }
354 <    ~LinkedTorsionType(){ if( next != NULL ) delete next; }
355 <
356 <    LinkedTorsionType* find( char* key1, char* key2, char* key3, char* key4 ){
357 <      
358 <
359 <
360 <
361 <      if( !strcmp( nameA, key1 ) && !strcmp( nameB, key2 ) &&
362 <          !strcmp( nameC, key3 ) && !strcmp( nameD, key4 ) ) return this;
363 <
364 <      if( !strcmp( nameA, key4 ) && !strcmp( nameB, key3 ) &&
365 <          !strcmp( nameC, key2 ) && !strcmp( nameD, key1 ) ) return this;
366 <
367 <      if( next != NULL ) return next->find(key1, key2, key3, key4);
368 <      return NULL;
369 <    }
370 <
371 <    void add( torsionStruct &info ){
372 <
373 <      // check for duplicates
374 <      int dup = 0;
375 <
376 <      if( !strcmp( nameA, info.nameA ) && !strcmp( nameB, info.nameB ) &&
377 <          !strcmp( nameC, info.nameC ) && !strcmp( nameD, info.nameD ) ) dup = 1;
378 <      
379 <      if( !strcmp( nameA, info.nameD ) && !strcmp( nameB, info.nameC ) &&
380 <          !strcmp( nameC, info.nameB ) && !strcmp( nameD, info.nameA ) ) dup = 1;
381 <      
382 <      if(dup){
383 <        sprintf( painCave.errMsg,
384 <                 "Duplicate DUFF torsion type \"%s - %s - %s - %s\" found in "
385 <                 "the DUFF param file./n", nameA, nameB, nameC, nameD );
386 <        painCave.isFatal = 1;
387 <        simError();
388 <      }
389 <
390 <      if( next != NULL ) next->add(info);
391 <      else{
392 <        next = new LinkedTorsionType();
393 <        strcpy(next->nameA, info.nameA);
394 <        strcpy(next->nameB, info.nameB);
395 <        strcpy(next->nameC, info.nameC);
396 <        strcpy(next->nameD, info.nameD);
397 <        strcpy(next->type,  info.type);
398 <        next->k1 = info.k1;
399 <        next->k2 = info.k2;
400 <        next->k3 = info.k3;
401 <        next->k4 = info.k4;
402 <
403 <      }
404 <    }
405 <
406 < #ifdef IS_MPI
407 <    
408 <    void duplicate( torsionStruct &info ){
409 <      strcpy(info.nameA, nameA);
410 <      strcpy(info.nameB, nameB);
411 <      strcpy(info.nameC, nameC);
412 <      strcpy(info.nameD, nameD);
413 <      strcpy(info.type,  type);
414 <      info.k1   = k1;
415 <      info.k2   = k2;
416 <      info.k3   = k3;
417 <      info.k4   = k4;
418 <      info.last = 0;
419 <    }
420 <
421 < #endif
422 <
423 <    char nameA[15];
424 <    char nameB[15];
425 <    char nameC[15];
426 <    char nameD[15];
427 <    char type[30];
428 <    double k1, k2, k3, k4;
429 <
430 <    LinkedTorsionType* next;
431 <  };
432 <
433 <
434 <  LinkedAtomType* headAtomType;
435 <  LinkedAtomType* currentAtomType;
436 <  LinkedBondType* headBondType;
437 <  LinkedBondType* currentBondType;
438 <  LinkedBendType* headBendType;
439 <  LinkedBendType* currentBendType;
440 <  LinkedTorsionType* headTorsionType;
441 <  LinkedTorsionType* currentTorsionType;
442 <
443 < } // namespace
444 <
445 < using namespace DUFF_NS;
446 <
447 <
448 < //****************************************************************
449 < // begins the actual forcefield stuff.  
450 < //****************************************************************
451 <
452 <
453 < DUFF::DUFF(){
454 <
455 <  char fileName[200];
456 <  char* ffPath_env = "FORCE_PARAM_PATH";
457 <  char* ffPath;
458 <  char temp[200];
459 <
460 <  headAtomType       = NULL;
461 <  currentAtomType    = NULL;
462 <  headBondType       = NULL;
463 <  currentBondType    = NULL;
464 <  headBendType       = NULL;
465 <  currentBendType    = NULL;
466 <  headTorsionType    = NULL;
467 <  currentTorsionType = NULL;
468 <
469 <  // do the funtion wrapping
470 <  wrapMeFF( this );
471 <
472 <
473 < #ifdef IS_MPI
474 <  int i;
475 <  
476 <  // **********************************************************************
477 <  // Init the atomStruct mpi type
478 <
479 <  atomStruct atomProto; // mpiPrototype
480 <  int atomBC[3] = {15,12,5};  // block counts
481 <  MPI_Aint atomDspls[3];           // displacements
482 <  MPI_Datatype atomMbrTypes[3];    // member mpi types
483 <
484 <  MPI_Address(&atomProto.name, &atomDspls[0]);
485 <  MPI_Address(&atomProto.mass, &atomDspls[1]);
486 <  MPI_Address(&atomProto.isSSD, &atomDspls[2]);
487 <  
488 <  atomMbrTypes[0] = MPI_CHAR;
489 <  atomMbrTypes[1] = MPI_DOUBLE;
490 <  atomMbrTypes[2] = MPI_INT;
491 <  
492 <  for (i=2; i >= 0; i--) atomDspls[i] -= atomDspls[0];
493 <  
494 <  MPI_Type_struct(3, atomBC, atomDspls, atomMbrTypes, &mpiAtomStructType);
495 <  MPI_Type_commit(&mpiAtomStructType);
496 <
497 <
498 <  // **********************************************************************
499 <  // Init the bondStruct mpi type
500 <  
501 <  bondStruct bondProto; // mpiPrototype
502 <  int bondBC[3] = {30,2,2};  // block counts
503 <  MPI_Aint bondDspls[3];           // displacements
504 <  MPI_Datatype bondMbrTypes[3];    // member mpi types
505 <  
506 <  MPI_Address(&bondProto.nameA, &bondDspls[0]);
507 <  MPI_Address(&bondProto.d0,    &bondDspls[1]);
508 <  MPI_Address(&bondProto.last,  &bondDspls[2]);
509 <  
510 <  bondMbrTypes[0] = MPI_CHAR;
511 <  bondMbrTypes[1] = MPI_DOUBLE;
512 <  bondMbrTypes[2] = MPI_INT;
513 <  
514 <  for (i=2; i >= 0; i--) bondDspls[i] -= bondDspls[0];
515 <  
516 <  MPI_Type_struct(3, bondBC, bondDspls, bondMbrTypes, &mpiBondStructType);
517 <  MPI_Type_commit(&mpiBondStructType);
518 <
519 <
520 <  // **********************************************************************
521 <  // Init the bendStruct mpi type
522 <  
523 <  bendStruct bendProto; // mpiPrototype
524 <  int bendBC[3] = {75,4,1};  // block counts
525 <  MPI_Aint bendDspls[3];           // displacements
526 <  MPI_Datatype bendMbrTypes[3];    // member mpi types
527 <  
528 <  MPI_Address(&bendProto.nameA, &bendDspls[0]);
529 <  MPI_Address(&bendProto.k1,    &bendDspls[1]);
530 <  MPI_Address(&bendProto.last,  &bendDspls[2]);
531 <  
532 <  bendMbrTypes[0] = MPI_CHAR;
533 <  bendMbrTypes[1] = MPI_DOUBLE;
534 <  bendMbrTypes[2] = MPI_INT;
535 <  
536 <  for (i=2; i >= 0; i--) bendDspls[i] -= bendDspls[0];
537 <  
538 <  MPI_Type_struct(3, bendBC, bendDspls, bendMbrTypes, &mpiBendStructType);
539 <  MPI_Type_commit(&mpiBendStructType);
540 <
541 <
542 <  // **********************************************************************
543 <  // Init the torsionStruct mpi type
544 <  
545 <  torsionStruct torsionProto; // mpiPrototype
546 <  int torsionBC[3] = {90,4,1};  // block counts
547 <  MPI_Aint torsionDspls[3];           // displacements
548 <  MPI_Datatype torsionMbrTypes[3];    // member mpi types
549 <  
550 <  MPI_Address(&torsionProto.nameA, &torsionDspls[0]);
551 <  MPI_Address(&torsionProto.k1,    &torsionDspls[1]);
552 <  MPI_Address(&torsionProto.last,  &torsionDspls[2]);
553 <  
554 <  torsionMbrTypes[0] = MPI_CHAR;
555 <  torsionMbrTypes[1] = MPI_DOUBLE;
556 <  torsionMbrTypes[2] = MPI_INT;
557 <  
558 <  for (i=2; i >= 0; i--) torsionDspls[i] -= torsionDspls[0];
559 <  
560 <  MPI_Type_struct(3, torsionBC, torsionDspls, torsionMbrTypes,
561 <                  &mpiTorsionStructType);
562 <  MPI_Type_commit(&mpiTorsionStructType);
563 <
564 <  // ***********************************************************************
565 <  
566 <  if( worldRank == 0 ){
567 < #endif
568 <    
569 <    // generate the force file name
570 <    
571 <    strcpy( fileName, "DUFF.frc" );
572 <    //    fprintf( stderr,"Trying to open %s\n", fileName );
573 <    
574 <    // attempt to open the file in the current directory first.
575 <    
576 <    frcFile = fopen( fileName, "r" );
577 <    
578 <    if( frcFile == NULL ){
579 <      
580 <      // next see if the force path enviorment variable is set
581 <      
582 <      ffPath = getenv( ffPath_env );
583 <      if( ffPath == NULL ) {
584 <        STR_DEFINE(ffPath, FRC_PATH );
585 <      }
586 <      
587 <      
588 <      strcpy( temp, ffPath );
589 <      strcat( temp, "/" );
590 <      strcat( temp, fileName );
591 <      strcpy( fileName, temp );
592 <      
593 <      frcFile = fopen( fileName, "r" );
594 <      
595 <      if( frcFile == NULL ){
596 <        
597 <        sprintf( painCave.errMsg,
598 <                 "Error opening the force field parameter file:\n"
599 <                 "\t%s\n"
600 <                 "\tHave you tried setting the FORCE_PARAM_PATH environment "
601 <                 "variable?\n",
602 <                 fileName );
603 <        painCave.severity = OOPSE_ERROR;
604 <        painCave.isFatal = 1;
605 <        simError();
606 <      }
607 <    }
608 <    
609 < #ifdef IS_MPI
610 <  }
611 <  
612 <  sprintf( checkPointMsg, "DUFF file opened sucessfully." );
613 <  MPIcheckPoint();
614 <  
615 < #endif // is_mpi
105 > void DUFF::parseBondType(){
106   }
107  
108 <
619 < DUFF::~DUFF(){
620 <
621 <  if( headAtomType != NULL ) delete headAtomType;
622 <  if( headBondType != NULL ) delete headBondType;
623 <  if( headBendType != NULL ) delete headBendType;
624 <  if( headTorsionType != NULL ) delete headTorsionType;
625 <
626 < #ifdef IS_MPI
627 <  if( worldRank == 0 ){
628 < #endif // is_mpi
629 <    
630 <    fclose( frcFile );
631 <    
632 < #ifdef IS_MPI
633 <  }
634 < #endif // is_mpi
108 > void DUFF::parseBendType(){
109   }
110  
111 < void DUFF::cleanMe( void ){
638 <
639 < #ifdef IS_MPI
640 <  
641 <  // keep the linked lists in the mpi version
642 <
643 < #else // is_mpi
644 <
645 <  // delete the linked lists in the single processor version
646 <
647 <  if( headAtomType != NULL ) delete headAtomType;
648 <  if( headBondType != NULL ) delete headBondType;
649 <  if( headBendType != NULL ) delete headBendType;
650 <  if( headTorsionType != NULL ) delete headTorsionType;
651 <
652 < #endif // is_mpi
653 < }
654 <
655 <
656 < void DUFF::initForceField( int ljMixRule ){
657 <  
658 <  initFortran( ljMixRule, entry_plug->useReactionField );
659 < }
660 <
661 < double DUFF::getAtomTypeMass (char* atomType) {
662 <
663 <  currentAtomType = headAtomType->find( atomType );
664 <  if( currentAtomType == NULL ){
665 <    sprintf( painCave.errMsg,
666 <            "AtomType error, %s not found in force file.\n",
667 <             atomType );
668 <    painCave.isFatal = 1;
669 <    simError();
670 <  }
671 <
672 <  return currentAtomType->mass;
673 < }
674 <
675 < void DUFF::readParams( void ){
676 <
677 <  int identNum;
678 <  
679 <  atomStruct atomInfo;
680 <  bondStruct bondInfo;
681 <  bendStruct bendInfo;
682 <  torsionStruct torsionInfo;
683 <  
684 <  bigSigma = 0.0;
685 <
686 <  atomInfo.last = 1;
687 <  bondInfo.last = 1;
688 <  bendInfo.last = 1;
689 <  torsionInfo.last = 1;
690 <
691 <  // read in the atom info
692 <  
693 < #ifdef IS_MPI
694 <  if( worldRank == 0 ){
695 < #endif
696 <    
697 <    // read in the atom types.
698 <    
699 <    headAtomType = new LinkedAtomType;
700 <    
701 <    fastForward( "AtomTypes", "initializeAtoms" );
702 <
703 <    // we are now at the AtomTypes section.
704 <    
705 <    eof_test = fgets( readLine, sizeof(readLine), frcFile );
706 <    lineNum++;
707 <    
708 <    
709 <    // read a line, and start parseing out the atom types
710 <
711 <    if( eof_test == NULL ){
712 <      sprintf( painCave.errMsg,
713 <               "Error in reading Atoms from force file at line %d.\n",
714 <               lineNum );
715 <      painCave.isFatal = 1;
716 <      simError();
717 <    }
718 <    
719 <    identNum = 1;
720 <    // stop reading at end of file, or at next section
721 <    while( readLine[0] != '#' && eof_test != NULL ){
722 <
723 <      // toss comment lines
724 <      if( readLine[0] != '!' ){
725 <        
726 <        // the parser returns 0 if the line was blank
727 <        if( parseAtom( readLine, lineNum, atomInfo ) ){
728 <          atomInfo.ident = identNum;
729 <          headAtomType->add( atomInfo );;
730 <          identNum++;
731 <        }
732 <      }
733 <      eof_test = fgets( readLine, sizeof(readLine), frcFile );
734 <      lineNum++;
735 <    }
736 <
737 < #ifdef IS_MPI
738 <    
739 <    // send out the linked list to all the other processes
740 <
741 <    sprintf( checkPointMsg,
742 <             "DUFF atom structures read successfully." );
743 <    MPIcheckPoint();
744 <
745 <    currentAtomType = headAtomType->next; //skip the first element who is a place holder.
746 <    while( currentAtomType != NULL ){
747 <      currentAtomType->duplicate( atomInfo );
748 <
749 <      sendFrcStruct( &atomInfo, mpiAtomStructType );
750 <
751 <      sprintf( checkPointMsg,
752 <               "successfully sent DUFF force type: \"%s\"\n",
753 <               atomInfo.name );
754 <      MPIcheckPoint();
755 <
756 <      currentAtomType = currentAtomType->next;
757 <    }
758 <    atomInfo.last = 1;
759 <    sendFrcStruct( &atomInfo, mpiAtomStructType );
760 <    
761 <  }
762 <
763 <  else{
764 <    
765 <    // listen for node 0 to send out the force params
766 <
767 <    MPIcheckPoint();
768 <
769 <    headAtomType = new LinkedAtomType;
770 <    receiveFrcStruct( &atomInfo, mpiAtomStructType );
771 <    
772 <    while( !atomInfo.last ){
773 <
774 <      headAtomType->add( atomInfo );
775 <      
776 <      MPIcheckPoint();
777 <
778 <      receiveFrcStruct( &atomInfo, mpiAtomStructType );
779 <    }
780 <  }
781 <
782 < #endif // is_mpi
783 <
784 <
785 <
786 <  // call new A_types in fortran
787 <  
788 <  int isError;
789 <  
790 <  // dummy variables
791 <  
792 <  int isGB = 0;
793 <  int isLJ = 1;
794 <  int isEAM =0;
795 <  int isCharge = 0;
796 <  double charge=0.0;
797 <    
798 <  currentAtomType = headAtomType->next;;
799 <  while( currentAtomType != NULL ){
800 <    
801 <    if(currentAtomType->isDipole) entry_plug->useDipoles = 1;
802 <    if(currentAtomType->isSSD) {
803 <      entry_plug->useSticky = 1;
804 <      set_sticky_params( &(currentAtomType->w0), &(currentAtomType->v0),
805 <                         &(currentAtomType->v0p),
806 <                         &(currentAtomType->rl), &(currentAtomType->ru),
807 <                         &(currentAtomType->rlp), &(currentAtomType->rup));
808 <    }
809 <
810 <    if( currentAtomType->name[0] != '\0' ){
811 <      isError = 0;
812 <      makeAtype( &(currentAtomType->ident),
813 <                 &isLJ,
814 <                 &(currentAtomType->isSSD),
815 <                 &(currentAtomType->isDipole),
816 <                 &isGB,
817 <                 &isEAM,
818 <                 &isCharge,
819 <                 &(currentAtomType->epslon),
820 <                 &(currentAtomType->sigma),
821 <                 &charge,
822 <                 &(currentAtomType->dipole),
823 <                 &isError );
824 <      if( isError ){
825 <        sprintf( painCave.errMsg,
826 <                 "Error initializing the \"%s\" atom type in fortran\n",
827 <                 currentAtomType->name );
828 <        painCave.isFatal = 1;
829 <        simError();
830 <      }
831 <    }
832 <    currentAtomType = currentAtomType->next;
833 <  }
834 <      
835 < #ifdef IS_MPI
836 <  sprintf( checkPointMsg,
837 <           "DUFF atom structures successfully sent to fortran\n" );
838 <  MPIcheckPoint();
839 < #endif // is_mpi
840 <
841 <  
842 <
843 <  // read in the bonds
844 <  
845 < #ifdef IS_MPI
846 <  if( worldRank == 0 ){
847 < #endif
848 <    
849 <    // read in the bond types.
850 <    
851 <    headBondType = new LinkedBondType;
852 <    
853 <    fastForward( "BondTypes", "initializeBonds" );
854 <
855 <    // we are now at the bondTypes section
856 <
857 <    eof_test =  fgets( readLine, sizeof(readLine), frcFile );
858 <    lineNum++;
859 <    
860 <    
861 <    // read a line, and start parseing out the atom types
862 <
863 <    if( eof_test == NULL ){
864 <      sprintf( painCave.errMsg,
865 <               "Error in reading bonds from force file at line %d.\n",
866 <               lineNum );
867 <      painCave.isFatal = 1;
868 <      simError();
869 <    }
870 <    
871 <    // stop reading at end of file, or at next section
872 <    while( readLine[0] != '#' && eof_test != NULL ){
873 <
874 <      // toss comment lines
875 <      if( readLine[0] != '!' ){
876 <        
877 <        // the parser returns 0 if the line was blank
878 <        if( parseBond( readLine, lineNum, bondInfo ) ){
879 <          headBondType->add( bondInfo );
880 <        }
881 <      }
882 <      eof_test = fgets( readLine, sizeof(readLine), frcFile );
883 <      lineNum++;
884 <    }
885 <        
886 < #ifdef IS_MPI
887 <    
888 <    // send out the linked list to all the other processes
889 <    
890 <    sprintf( checkPointMsg,
891 <             "DUFF bond structures read successfully." );
892 <    MPIcheckPoint();
893 <    
894 <    currentBondType = headBondType->next;
895 <    while( currentBondType != NULL ){
896 <      currentBondType->duplicate( bondInfo );
897 <      sendFrcStruct( &bondInfo, mpiBondStructType );
898 <      currentBondType = currentBondType->next;
899 <    }
900 <    bondInfo.last = 1;
901 <    sendFrcStruct( &bondInfo, mpiBondStructType );
902 <    
903 <  }
111 > void DUFF::parseTorsionType(){
112  
905  else{
906    
907    // listen for node 0 to send out the force params
908    
909    MPIcheckPoint();
910
911    headBondType = new LinkedBondType;
912    receiveFrcStruct( &bondInfo, mpiBondStructType );
913    while( !bondInfo.last ){
914
915      headBondType->add( bondInfo );
916      receiveFrcStruct( &bondInfo, mpiBondStructType );
917    }
918  }
919
920  sprintf( checkPointMsg,
921           "DUFF bond structures broadcast successfully." );
922  MPIcheckPoint();
923
924 #endif // is_mpi
925  
926
927  // read in the bends
928
929 #ifdef IS_MPI
930  if( worldRank == 0 ){
931 #endif
932
933    // read in the bend types.
934
935    headBendType = new LinkedBendType;
936    
937    fastForward( "BendTypes", "initializeBends" );
938
939    // we are now at the bendTypes section
940    
941    eof_test =  fgets( readLine, sizeof(readLine), frcFile );
942    lineNum++;
943        
944    // read a line, and start parseing out the bend types
945
946    if( eof_test == NULL ){
947      sprintf( painCave.errMsg,
948               "Error in reading bends from force file at line %d.\n",
949               lineNum );
950      painCave.isFatal = 1;
951      simError();
952    }
953    
954    // stop reading at end of file, or at next section
955    while( readLine[0] != '#' && eof_test != NULL ){
956      
957      // toss comment lines
958      if( readLine[0] != '!' ){
959        
960        // the parser returns 0 if the line was blank
961        if( parseBend( readLine, lineNum, bendInfo ) ){
962          headBendType->add( bendInfo );
963        }
964      }
965      eof_test = fgets( readLine, sizeof(readLine), frcFile );
966      lineNum++;
967    }
968    
969 #ifdef IS_MPI
970    
971    // send out the linked list to all the other processes
972
973    sprintf( checkPointMsg,
974             "DUFF bend structures read successfully." );
975    MPIcheckPoint();
976
977    currentBendType = headBendType->next;
978    while( currentBendType != NULL ){
979      currentBendType->duplicate( bendInfo );
980      sendFrcStruct( &bendInfo, mpiBendStructType );
981      currentBendType = currentBendType->next;
982    }
983    bendInfo.last = 1;
984    sendFrcStruct( &bendInfo, mpiBendStructType );
985    
986  }
987
988  else{
989    
990    // listen for node 0 to send out the force params
991    
992    MPIcheckPoint();
993
994    headBendType = new LinkedBendType;
995    receiveFrcStruct( &bendInfo, mpiBendStructType );
996    while( !bendInfo.last ){
997
998      headBendType->add( bendInfo );
999      receiveFrcStruct( &bendInfo, mpiBendStructType );
1000    }
1001  }
1002
1003  sprintf( checkPointMsg,
1004           "DUFF bend structures broadcast successfully." );
1005  MPIcheckPoint();
1006
1007 #endif // is_mpi
1008
1009
1010  // read in the torsions
1011
1012 #ifdef IS_MPI
1013  if( worldRank == 0 ){
1014 #endif
1015
1016    // read in the torsion types.
1017
1018    headTorsionType = new LinkedTorsionType;
1019    
1020    fastForward( "TorsionTypes", "initializeTorsions" );
1021
1022    // we are now at the torsionTypes section
1023
1024    eof_test =  fgets( readLine, sizeof(readLine), frcFile );
1025    lineNum++;
1026    
1027    
1028    // read a line, and start parseing out the atom types
1029
1030    if( eof_test == NULL ){
1031      sprintf( painCave.errMsg,
1032               "Error in reading torsions from force file at line %d.\n",
1033               lineNum );
1034      painCave.isFatal = 1;
1035      simError();
1036    }
1037    
1038    // stop reading at end of file, or at next section
1039    while( readLine[0] != '#' && eof_test != NULL ){
1040
1041      // toss comment lines
1042      if( readLine[0] != '!' ){
1043        
1044        // the parser returns 0 if the line was blank
1045        if( parseTorsion( readLine, lineNum, torsionInfo ) ){
1046          headTorsionType->add( torsionInfo );
1047
1048        }
1049      }
1050      eof_test = fgets( readLine, sizeof(readLine), frcFile );
1051      lineNum++;
1052    }
1053
1054 #ifdef IS_MPI
1055    
1056    // send out the linked list to all the other processes
1057    
1058    sprintf( checkPointMsg,
1059             "DUFF torsion structures read successfully." );
1060    MPIcheckPoint();
1061    
1062    currentTorsionType = headTorsionType->next;
1063    while( currentTorsionType != NULL ){
1064      currentTorsionType->duplicate( torsionInfo );
1065      sendFrcStruct( &torsionInfo, mpiTorsionStructType );
1066      currentTorsionType = currentTorsionType->next;
1067    }
1068    torsionInfo.last = 1;
1069    sendFrcStruct( &torsionInfo, mpiTorsionStructType );
1070    
1071  }
1072
1073  else{
1074    
1075    // listen for node 0 to send out the force params
1076    
1077    MPIcheckPoint();
1078
1079    headTorsionType = new LinkedTorsionType;
1080    receiveFrcStruct( &torsionInfo, mpiTorsionStructType );
1081    while( !torsionInfo.last ){
1082
1083      headTorsionType->add( torsionInfo );
1084      receiveFrcStruct( &torsionInfo, mpiTorsionStructType );
1085    }
1086  }
1087
1088  sprintf( checkPointMsg,
1089           "DUFF torsion structures broadcast successfully." );
1090  MPIcheckPoint();
1091
1092 #endif // is_mpi
1093
1094  entry_plug->useLJ = 1;
113   }
114  
115 + } //end namespace oopse
116  
1098
1099 void DUFF::initializeAtoms( int nAtoms, Atom** the_atoms ){
1100  
1101  
1102  //////////////////////////////////////////////////
1103  // a quick water fix
1104
1105  double waterI[3][3];
1106  waterI[0][0] = 1.76958347772500;
1107  waterI[0][1] = 0.0;
1108  waterI[0][2] = 0.0;
1109
1110  waterI[1][0] = 0.0;
1111  waterI[1][1] = 0.614537057924513;
1112  waterI[1][2] = 0.0;
1113
1114  waterI[2][0] = 0.0;
1115  waterI[2][1] = 0.0;
1116  waterI[2][2] = 1.15504641980049;
1117
1118
1119  double headI[3][3];
1120  headI[0][0] = 1125;
1121  headI[0][1] = 0.0;
1122  headI[0][2] = 0.0;
1123
1124  headI[1][0] = 0.0;
1125  headI[1][1] = 1125;
1126  headI[1][2] = 0.0;
1127
1128  headI[2][0] = 0.0;
1129  headI[2][1] = 0.0;
1130  headI[2][2] = 250;
1131
1132  //////////////////////////////////////////////////
1133
1134  
1135  // initialize the atoms
1136  
1137  DirectionalAtom* dAtom;
1138  double ji[3];
1139
1140  for(int i=0; i<nAtoms; i++ ){
1141
1142    currentAtomType = headAtomType->find( the_atoms[i]->getType() );
1143    if( currentAtomType == NULL ){
1144      sprintf( painCave.errMsg,
1145               "AtomType error, %s not found in force file.\n",
1146               the_atoms[i]->getType() );
1147      painCave.isFatal = 1;
1148      simError();
1149    }
1150    
1151    the_atoms[i]->setMass( currentAtomType->mass );
1152    the_atoms[i]->setIdent( currentAtomType->ident );
1153
1154    if( bigSigma < currentAtomType->sigma ) bigSigma = currentAtomType->sigma;
1155
1156    if( currentAtomType->isDipole ){
1157      if( the_atoms[i]->isDirectional() ){
1158        
1159        dAtom = (DirectionalAtom *) the_atoms[i];
1160        dAtom->setHasDipole( 1 );
1161
1162        ji[0] = 0.0;
1163        ji[1] = 0.0;
1164        ji[2] = 0.0;
1165
1166        dAtom->setJ( ji );
1167        
1168        if(!strcmp("SSD",the_atoms[i]->getType())){
1169          dAtom->setI( waterI );
1170        }
1171        else if(!strcmp("HEAD",the_atoms[i]->getType())){
1172          dAtom->setI( headI );
1173        }
1174        else{
1175          sprintf(painCave.errMsg,
1176                  "AtmType error, %s does not have a moment of inertia set.\n",
1177                  the_atoms[i]->getType() );
1178          painCave.isFatal = 1;
1179          simError();
1180        }
1181        entry_plug->n_dipoles++;
1182      }
1183      else{
1184        
1185        sprintf( painCave.errMsg,
1186                "DUFF error: Atom \"%s\" is a dipole, yet no standard"
1187                 " orientation was specifed in the meta-data file.\n",
1188                 currentAtomType->name );
1189        painCave.isFatal = 1;
1190        simError();
1191      }
1192    }
1193    else{
1194      if( the_atoms[i]->isDirectional() ){
1195        sprintf( painCave.errMsg,
1196                 "DUFF error: Atom \"%s\" was given a standard "
1197                 "orientation in the meta-data file, yet it is not a dipole.\n",
1198                 currentAtomType->name);
1199        painCave.isFatal = 1;
1200        simError();
1201      }
1202    }
1203  }
1204 }
1205
1206 void DUFF::initializeBonds( int nBonds, Bond** bondArray,
1207                                   bond_pair* the_bonds ){
1208  int i,a,b;
1209  char* atomA;
1210  char* atomB;
1211  
1212  Atom** the_atoms;
1213  the_atoms = entry_plug->atoms;
1214  
1215
1216  // initialize the Bonds
1217  
1218  for( i=0; i<nBonds; i++ ){
1219    
1220    a = the_bonds[i].a;
1221    b = the_bonds[i].b;
1222
1223    atomA = the_atoms[a]->getType();
1224    atomB = the_atoms[b]->getType();
1225    currentBondType = headBondType->find( atomA, atomB );
1226    if( currentBondType == NULL ){
1227      sprintf( painCave.errMsg,
1228               "BondType error, %s - %s not found in force file.\n",
1229               atomA, atomB );
1230      painCave.isFatal = 1;
1231      simError();
1232    }
1233    
1234    switch( currentBondType->type ){
1235
1236    case FIXED_BOND:
1237            
1238      bondArray[i] = new ConstrainedBond( *the_atoms[a],
1239                                          *the_atoms[b],
1240                                          currentBondType->d0 );
1241      entry_plug->n_constraints++;
1242      break;
1243
1244    case HARMONIC_BOND:
1245      
1246      bondArray[i] = new HarmonicBond( *the_atoms[a],
1247                                       *the_atoms[b],
1248                                       currentBondType->d0,
1249                                       currentBondType->k0 );
1250      break;
1251      
1252    default:
1253
1254      break;
1255      // do nothing
1256    }
1257  }
1258 }
1259
1260 void DUFF::initializeBends( int nBends, Bend** bendArray,
1261                                   bend_set* the_bends ){
1262  
1263  QuadraticBend* qBend;
1264  GhostBend* gBend;
1265  Atom** the_atoms;
1266  the_atoms = entry_plug->atoms;
1267  
1268  int i, a, b, c;
1269  char* atomA;
1270  char* atomB;
1271  char* atomC;
1272  
1273  // initialize the Bends
1274
1275  for( i=0; i<nBends; i++ ){
1276    
1277    a = the_bends[i].a;
1278    b = the_bends[i].b;
1279    c = the_bends[i].c;
1280
1281    atomA = the_atoms[a]->getType();
1282    atomB = the_atoms[b]->getType();
1283
1284    if( the_bends[i].isGhost ) atomC = "GHOST";
1285    else atomC = the_atoms[c]->getType();
1286
1287    currentBendType = headBendType->find( atomA, atomB, atomC );
1288    if( currentBendType == NULL ){
1289      sprintf( painCave.errMsg, "BendType error, %s - %s - %s not found"
1290               " in force file.\n",
1291               atomA, atomB, atomC );
1292      painCave.isFatal = 1;
1293      simError();
1294    }
1295    
1296    if( !strcmp( currentBendType->type, "quadratic" ) ){
1297      
1298      if( the_bends[i].isGhost){
1299        
1300        if( the_bends[i].ghost == b ){
1301          // do nothing
1302        }
1303        else if( the_bends[i].ghost == a ){
1304          c = a;
1305          a = b;
1306          b = c;
1307        }
1308        else{
1309          sprintf( painCave.errMsg,
1310                   "BendType error, %s - %s - %s,\n"
1311                   "  --> central atom is not "
1312                   "correctly identified with the "
1313                   "\"ghostVectorSource = \" tag.\n",
1314                   atomA, atomB, atomC );
1315          painCave.isFatal = 1;
1316          simError();
1317        }
1318        
1319        gBend = new GhostBend( *the_atoms[a],
1320                               *the_atoms[b]);
1321                                                                      
1322        gBend->setConstants( currentBendType->k1,
1323                             currentBendType->k2,
1324                             currentBendType->k3,
1325                             currentBendType->t0 );
1326        bendArray[i] = gBend;
1327      }
1328      else{
1329        qBend = new QuadraticBend( *the_atoms[a],
1330                                   *the_atoms[b],
1331                                   *the_atoms[c] );
1332        qBend->setConstants( currentBendType->k1,
1333                             currentBendType->k2,
1334                             currentBendType->k3,
1335                             currentBendType->t0 );
1336        bendArray[i] = qBend;
1337      }      
1338    }
1339  }
1340 }
1341
1342 void DUFF::initializeTorsions( int nTorsions, Torsion** torsionArray,
1343                                      torsion_set* the_torsions ){
1344
1345  int i, a, b, c, d;
1346  char* atomA;
1347  char* atomB;
1348  char* atomC;
1349  char* atomD;
1350
1351  CubicTorsion* cTors;
1352  Atom** the_atoms;
1353  the_atoms = entry_plug->atoms;
1354
1355  // initialize the Torsions
1356
1357  for( i=0; i<nTorsions; i++ ){
1358    
1359    a = the_torsions[i].a;
1360    b = the_torsions[i].b;
1361    c = the_torsions[i].c;
1362    d = the_torsions[i].d;
1363
1364    atomA = the_atoms[a]->getType();
1365    atomB = the_atoms[b]->getType();
1366    atomC = the_atoms[c]->getType();
1367    atomD = the_atoms[d]->getType();
1368    currentTorsionType = headTorsionType->find( atomA, atomB, atomC, atomD );
1369    if( currentTorsionType == NULL ){
1370      sprintf( painCave.errMsg,
1371               "TorsionType error, %s - %s - %s - %s not found"
1372               " in force file.\n",
1373               atomA, atomB, atomC, atomD );
1374      painCave.isFatal = 1;
1375      simError();
1376    }
1377    
1378    if( !strcmp( currentTorsionType->type, "cubic" ) ){
1379      
1380      cTors = new CubicTorsion( *the_atoms[a], *the_atoms[b],
1381                                *the_atoms[c], *the_atoms[d] );
1382      cTors->setConstants( currentTorsionType->k1, currentTorsionType->k2,
1383                           currentTorsionType->k3, currentTorsionType->k4 );
1384      torsionArray[i] = cTors;
1385    }
1386  }
1387 }
1388
1389 void DUFF::fastForward( char* stopText, char* searchOwner ){
1390
1391  int foundText = 0;
1392  char* the_token;
1393
1394  rewind( frcFile );
1395  lineNum = 0;
1396
1397  eof_test = fgets( readLine, sizeof(readLine), frcFile );
1398  lineNum++;
1399  if( eof_test == NULL ){
1400    sprintf( painCave.errMsg, "Error fast forwarding force file for %s: "
1401             " file is empty.\n",
1402             searchOwner );
1403    painCave.isFatal = 1;
1404    simError();
1405  }
1406  
1407  
1408  while( !foundText ){
1409    while( eof_test != NULL && readLine[0] != '#' ){
1410      eof_test = fgets( readLine, sizeof(readLine), frcFile );
1411      lineNum++;
1412    }
1413    if( eof_test == NULL ){
1414      sprintf( painCave.errMsg,
1415               "Error fast forwarding force file for %s at "
1416               "line %d: file ended unexpectedly.\n",
1417               searchOwner,
1418               lineNum );
1419      painCave.isFatal = 1;
1420      simError();
1421    }
1422    
1423    the_token = strtok( readLine, " ,;\t#\n" );
1424    foundText = !strcmp( stopText, the_token );
1425    
1426    if( !foundText ){
1427      eof_test = fgets( readLine, sizeof(readLine), frcFile );
1428      lineNum++;
1429      
1430      if( eof_test == NULL ){
1431        sprintf( painCave.errMsg,
1432                 "Error fast forwarding force file for %s at "
1433                 "line %d: file ended unexpectedly.\n",
1434                 searchOwner,
1435                 lineNum );
1436        painCave.isFatal = 1;
1437        simError();
1438      }
1439    }
1440  }  
1441 }
1442
1443
1444 int DUFF_NS::parseAtom( char *lineBuffer, int lineNum, atomStruct &info ){
1445
1446  char* the_token;
1447  
1448  the_token = strtok( lineBuffer, " \n\t,;" );
1449  if( the_token != NULL ){
1450    
1451    strcpy( info.name, the_token );
1452
1453    if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1454      sprintf( painCave.errMsg,
1455               "Error parseing AtomTypes: line %d\n", lineNum );
1456      painCave.isFatal = 1;
1457      simError();
1458    }
1459    
1460    info.isDipole = atoi( the_token );
1461
1462    if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1463      sprintf( painCave.errMsg,
1464               "Error parseing AtomTypes: line %d\n", lineNum );
1465      painCave.isFatal = 1;
1466      simError();
1467    }
1468
1469    info.isSSD = atoi( the_token );
1470
1471    if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1472      sprintf( painCave.errMsg,
1473               "Error parseing AtomTypes: line %d\n", lineNum );
1474      painCave.isFatal = 1;
1475      simError();
1476    }
1477    
1478    info.mass = atof( the_token );
1479    
1480    if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1481      sprintf( painCave.errMsg,
1482               "Error parseing AtomTypes: line %d\n", lineNum );
1483      painCave.isFatal = 1;
1484      simError();
1485    }
1486        
1487    info.epslon = atof( the_token );
1488          
1489    if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1490      sprintf( painCave.errMsg,
1491               "Error parseing AtomTypes: line %d\n", lineNum );
1492      painCave.isFatal = 1;
1493      simError();
1494    }
1495        
1496    info.sigma = atof( the_token );
1497
1498    if( info.isDipole ){
1499      
1500      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1501        sprintf( painCave.errMsg,
1502                 "Error parseing AtomTypes: line %d\n", lineNum );
1503        painCave.isFatal = 1;
1504        simError();
1505      }
1506      
1507      info.dipole = atof( the_token );
1508    }
1509    else info.dipole = 0.0;
1510
1511    if( info.isSSD ){
1512
1513      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1514        sprintf( painCave.errMsg,
1515                 "Error parseing AtomTypes: line %d\n", lineNum );
1516        painCave.isFatal = 1;
1517        simError();
1518      }
1519      
1520      info.w0 = atof( the_token );
1521
1522      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1523        sprintf( painCave.errMsg,
1524                 "Error parseing AtomTypes: line %d\n", lineNum );
1525        painCave.isFatal = 1;
1526        simError();
1527      }
1528      
1529      info.v0 = atof( the_token );
1530      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1531        sprintf( painCave.errMsg,
1532                 "Error parseing AtomTypes: line %d\n", lineNum );
1533        painCave.isFatal = 1;
1534        simError();
1535      }
1536      
1537      info.v0p = atof( the_token );
1538
1539      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1540        sprintf( painCave.errMsg,
1541                 "Error parseing AtomTypes: line %d\n", lineNum );
1542        painCave.isFatal = 1;
1543        simError();
1544      }
1545      
1546      info.rl = atof( the_token );
1547
1548      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1549        sprintf( painCave.errMsg,
1550                 "Error parseing AtomTypes: line %d\n", lineNum );
1551        painCave.isFatal = 1;
1552        simError();
1553      }
1554      
1555      info.ru = atof( the_token );
1556
1557      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1558        sprintf( painCave.errMsg,
1559                 "Error parseing AtomTypes: line %d\n", lineNum );
1560        painCave.isFatal = 1;
1561        simError();
1562      }
1563      
1564      info.rlp = atof( the_token );
1565
1566      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1567        sprintf( painCave.errMsg,
1568                 "Error parseing AtomTypes: line %d\n", lineNum );
1569        painCave.isFatal = 1;
1570        simError();
1571      }
1572      
1573      info.rup = atof( the_token );
1574    }
1575    else info.v0 = info.w0 = info.v0p = info.rl = info.ru = info.rlp = info.rup = 0.0;
1576
1577    return 1;
1578  }
1579  else return 0;
1580 }
1581
1582 int DUFF_NS::parseBond( char *lineBuffer, int lineNum, bondStruct &info ){
1583
1584  char* the_token;
1585  char bondType[30];
1586  
1587  the_token = strtok( lineBuffer, " \n\t,;" );
1588  if( the_token != NULL ){
1589    
1590    strcpy( info.nameA, the_token );
1591
1592    if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1593      sprintf( painCave.errMsg,
1594               "Error parseing BondTypes: line %d\n", lineNum );
1595      painCave.isFatal = 1;
1596      simError();
1597    }
1598    
1599    strcpy( info.nameB, the_token );
1600
1601    if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1602      sprintf( painCave.errMsg,
1603               "Error parseing BondTypes: line %d\n", lineNum );
1604      painCave.isFatal = 1;
1605      simError();
1606    }
1607    
1608    strcpy( bondType, the_token );
1609    
1610    if( !strcmp( bondType, "fixed" ) ){
1611      info.type = FIXED_BOND;
1612      
1613      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1614        sprintf( painCave.errMsg,
1615                 "Error parseing BondTypes: line %d\n", lineNum );
1616        painCave.isFatal = 1;
1617        simError();
1618      }
1619      
1620      info.d0 = atof( the_token );
1621      
1622      info.k0=0.0;
1623    }
1624    else if( !strcmp( bondType, "harmonic" ) ){
1625      info.type = HARMONIC_BOND;
1626      
1627      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1628        sprintf( painCave.errMsg,
1629                 "Error parseing BondTypes: line %d\n", lineNum );
1630        painCave.isFatal = 1;
1631        simError();
1632      }
1633      
1634      info.d0 = atof( the_token );
1635
1636      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1637        sprintf( painCave.errMsg,
1638                 "Error parseing BondTypes: line %d\n", lineNum );
1639        painCave.isFatal = 1;
1640        simError();
1641      }
1642      
1643      info.k0 = atof( the_token );
1644    }
1645
1646    else{
1647      sprintf( painCave.errMsg,
1648               "Unknown DUFF bond type \"%s\" at line %d\n",
1649               bondType,
1650               lineNum );
1651      painCave.isFatal = 1;
1652      simError();
1653    }            
1654    
1655    return 1;
1656  }
1657  else return 0;
1658 }
1659
1660
1661 int DUFF_NS::parseBend( char *lineBuffer, int lineNum, bendStruct &info ){
1662
1663  char* the_token;
1664  
1665  the_token = strtok( lineBuffer, " \n\t,;" );
1666  if( the_token != NULL ){
1667    
1668    strcpy( info.nameA, the_token );
1669
1670    if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1671      sprintf( painCave.errMsg,
1672               "Error parseing BendTypes: line %d\n", lineNum );
1673      painCave.isFatal = 1;
1674      simError();
1675    }
1676    
1677    strcpy( info.nameB, the_token );
1678
1679    if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1680      sprintf( painCave.errMsg,
1681               "Error parseing BendTypes: line %d\n", lineNum );
1682      painCave.isFatal = 1;
1683      simError();
1684    }
1685    
1686    strcpy( info.nameC, the_token );
1687
1688    if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1689      sprintf( painCave.errMsg,
1690               "Error parseing BendTypes: line %d\n", lineNum );
1691      painCave.isFatal = 1;
1692      simError();
1693    }
1694    
1695    strcpy( info.type, the_token );
1696
1697    if( !strcmp( info.type, "quadratic" ) ){
1698      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1699        sprintf( painCave.errMsg,
1700                 "Error parseing BendTypes: line %d\n", lineNum );
1701        painCave.isFatal = 1;
1702        simError();
1703      }
1704        
1705      info.k1 = atof( the_token );
1706      
1707      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1708        sprintf( painCave.errMsg,
1709                 "Error parseing BendTypes: line %d\n", lineNum );
1710        painCave.isFatal = 1;
1711        simError();
1712      }
1713      
1714      info.k2 = atof( the_token );
1715      
1716      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1717        sprintf( painCave.errMsg,
1718                 "Error parseing BendTypes: line %d\n", lineNum );
1719        painCave.isFatal = 1;
1720        simError();
1721      }
1722        
1723      info.k3 = atof( the_token );
1724      
1725      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1726        sprintf( painCave.errMsg,
1727                 "Error parseing BendTypes: line %d\n", lineNum );
1728        painCave.isFatal = 1;
1729        simError();
1730      }
1731      
1732      info.t0 = atof( the_token );
1733    }
1734    
1735    else{
1736      sprintf( painCave.errMsg,
1737               "Unknown DUFF bend type \"%s\" at line %d\n",
1738               info.type,
1739               lineNum );
1740      painCave.isFatal = 1;
1741      simError();
1742    }            
1743        
1744    return 1;
1745  }
1746  else return 0;
1747 }
1748
1749 int DUFF_NS::parseTorsion( char *lineBuffer, int lineNum, torsionStruct &info ){
1750  
1751  char*  the_token;
1752
1753  the_token = strtok( lineBuffer, " \n\t,;" );
1754  if( the_token != NULL ){
1755    
1756    strcpy( info.nameA, the_token );
1757        
1758    if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1759      sprintf( painCave.errMsg,
1760               "Error parseing TorsionTypes: line %d\n", lineNum );
1761      painCave.isFatal = 1;
1762      simError();
1763    }
1764    
1765    strcpy( info.nameB, the_token );
1766
1767    if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1768      sprintf( painCave.errMsg,
1769               "Error parseing TorsionTypes: line %d\n", lineNum );
1770      painCave.isFatal = 1;
1771      simError();
1772    }
1773    
1774    strcpy( info.nameC, the_token );
1775    
1776    if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1777      sprintf( painCave.errMsg,
1778               "Error parseing TorsionTypes: line %d\n", lineNum );
1779      painCave.isFatal = 1;
1780      simError();
1781    }
1782    
1783    strcpy( info.nameD, the_token );
1784    
1785    if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1786      sprintf( painCave.errMsg,
1787               "Error parseing TorsionTypes: line %d\n", lineNum );
1788      painCave.isFatal = 1;
1789      simError();
1790    }
1791    
1792    strcpy( info.type, the_token );
1793    
1794    if( !strcmp( info.type, "cubic" ) ){
1795      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1796        sprintf( painCave.errMsg,
1797                 "Error parseing TorsionTypes: line %d\n", lineNum );
1798        painCave.isFatal = 1;
1799        simError();
1800      }
1801      
1802      info.k1 = atof( the_token );
1803      
1804      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1805        sprintf( painCave.errMsg,
1806                 "Error parseing TorsionTypes: line %d\n", lineNum );
1807        painCave.isFatal = 1;
1808        simError();
1809      }
1810      
1811      info.k2 = atof( the_token );
1812      
1813      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1814        sprintf( painCave.errMsg,
1815                 "Error parseing TorsionTypes: line %d\n", lineNum );
1816        painCave.isFatal = 1;
1817        simError();
1818      }
1819      
1820      info.k3 = atof( the_token );
1821      
1822      if( ( the_token = strtok( NULL, " \n\t,;" ) ) == NULL ){
1823        sprintf( painCave.errMsg,
1824                 "Error parseing TorsionTypes: line %d\n", lineNum );
1825        painCave.isFatal = 1;
1826        simError();
1827      }
1828      
1829      info.k4 = atof( the_token );
1830    
1831    }
1832    
1833    else{
1834      sprintf( painCave.errMsg,
1835               "Unknown DUFF torsion type \"%s\" at line %d\n",
1836               info.type,
1837               lineNum );
1838      painCave.isFatal = 1;
1839      simError();
1840    }            
1841    
1842    return 1;
1843  }
1844  
1845  else return 0;
1846 }

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