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root/group/trunk/OOPSE/libmdtools/InitializeFromFile.cpp
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Comparing trunk/OOPSE/libmdtools/InitializeFromFile.cpp (file contents):
Revision 419 by gezelter, Thu Mar 27 15:07:29 2003 UTC vs.
Revision 830 by gezelter, Tue Oct 28 16:20:28 2003 UTC

# Line 1 | Line 1
1 + #define _FILE_OFFSET_BITS 64
2   #include <iostream>
3 < #include <cmath>
3 > #include <math.h>
4  
5   #include <stdio.h>
6   #include <stdlib.h>
# Line 13 | Line 14
14  
15   #ifdef IS_MPI
16   #include <mpi.h>
16 – #include <mpi++.h>
17   #include "mpiSimulation.hpp"
18 < #define TAKE_THIS_TAG 0
18 > #define TAKE_THIS_TAG_CHAR 0
19 > #define TAKE_THIS_TAG_INT 1
20 >
21 > namespace initFile{
22 >  void nodeZeroError( void );
23 >  void anonymousNodeDie( void );
24 > }
25 >
26 > using namespace initFile;
27 >
28   #endif // is_mpi
29  
30 < InitializeFromFile :: InitializeFromFile( char *in_name ){
30 > InitializeFromFile::InitializeFromFile( char *in_name ){
31 >
32   #ifdef IS_MPI
33    if (worldRank == 0) {
34   #endif
# Line 40 | Line 50 | InitializeFromFile :: ~InitializeFromFile( ){
50    return;  
51   }
52  
53 < InitializeFromFile :: ~InitializeFromFile( ){
53 > InitializeFromFile::~InitializeFromFile( ){
54   #ifdef IS_MPI
55    if (worldRank == 0) {
56   #endif
# Line 61 | Line 71 | void InitializeFromFile :: read_xyz( SimInfo* the_entr
71   }
72  
73  
74 < void InitializeFromFile :: read_xyz( SimInfo* the_entry_plug ){
74 > void InitializeFromFile :: readInit( SimInfo* the_simnfo ){
75  
76 <  int i, j, done, which_node, which_atom; // loop counter
76 >  int i, j;
77 >  
78 > #ifdef IS_MPI
79 >  int done, which_node, which_atom; // loop counter
80 > #endif //is_mpi
81  
82    const int BUFFERSIZE = 2000; // size of the read buffer
83    int n_atoms; // the number of atoms
84    char read_buffer[BUFFERSIZE]; //the line buffer for reading
71 – #ifdef IS_MPI
72 –  char send_buffer[BUFFERSIZE];
73 – #endif
85  
86    char *eof_test; // ptr to see when we reach the end of the file
87    char *parseErr;
77 –  int procIndex;
88  
89 <  entry_plug = the_entry_plug;
89 >  double currTime;
90 >  double boxMat[9];
91 >  double theBoxMat3[3][3];
92  
93 +  simnfo = the_simnfo;
94  
95 +
96   #ifndef IS_MPI
97    eof_test = fgets(read_buffer, sizeof(read_buffer), c_in_file);
98    if( eof_test == NULL ){
# Line 91 | Line 105 | void InitializeFromFile :: read_xyz( SimInfo* the_entr
105  
106    n_atoms = atoi( read_buffer );
107  
108 <  Atom **atoms = entry_plug->atoms;
95 <  DirectionalAtom* dAtom;
96 <
97 <  if( n_atoms != entry_plug->n_atoms ){
108 >  if( n_atoms != simnfo->n_atoms ){
109      sprintf( painCave.errMsg,
110               "Initialize from File error. %s n_atoms, %d, "
111               "does not match the BASS file's n_atoms, %d.\n",
112 <             c_in_name, n_atoms, entry_plug->n_atoms );
112 >             c_in_name, n_atoms, simnfo->n_atoms );
113      painCave.isFatal = 1;
114      simError();
115    }
116    
117 <  //read and toss the comment line
117 >  //read the box mat from the comment line
118    
119    eof_test = fgets(read_buffer, sizeof(read_buffer), c_in_file);
120    if(eof_test == NULL){
# Line 113 | Line 124 | void InitializeFromFile :: read_xyz( SimInfo* the_entr
124      simError();
125    }
126  
127 +  parseErr = parseBoxLine( read_buffer, boxMat, currTime );
128 +  if( parseErr != NULL ){
129 +    strcpy( painCave.errMsg, parseErr );
130 +    painCave.isFatal = 1;
131 +    simError();
132 +  }
133 +
134 +  for(i=0;i<3;i++)
135 +    for(j=0;j<3;j++) theBoxMat3[i][j] = boxMat[3*j+i];
136 +
137 +  simnfo->setBoxM( theBoxMat3 );
138 +  simnfo->setTime( currTime );
139 +
140 +
141    for( i=0; i < n_atoms; i++){
142      
143      eof_test = fgets(read_buffer, sizeof(read_buffer), c_in_file);
# Line 132 | Line 157 | void InitializeFromFile :: read_xyz( SimInfo* the_entr
157        strcpy( painCave.errMsg, parseErr );
158        painCave.isFatal = 1;
159        simError();
160 <    }    
160 >    }
161    }
162  
163  
164    // MPI Section of code..........
165   #else //IS_MPI
166  
167 <  MPI::Status istatus;
167 >  // first thing first, suspend fatalities.
168 >  painCave.isEventLoop = 1;
169 >
170 >  int myStatus; // 1 = wakeup & success; 0 = error; -1 = AllDone
171 >  int haveError;
172 >  
173 >  MPI_Status istatus;
174    int *AtomToProcMap = mpiSim->getAtomToProcMap();
175  
176 +  
177 +  haveError = 0;
178    if (worldRank == 0) {
179 +
180      eof_test = fgets(read_buffer, sizeof(read_buffer), c_in_file);
181      if( eof_test == NULL ){
182        sprintf( painCave.errMsg,
183 <               "Error reading 1st line of %d \n ",c_in_name);
184 <      painCave.isFatal = 1;
183 >               "Error reading 1st line of %s \n ",c_in_name);
184 >      haveError = 1;
185        simError();
186      }
187      
188      n_atoms = atoi( read_buffer );
189      
156 –    Atom **atoms = entry_plug->atoms;
157 –    DirectionalAtom* dAtom;
158 –
190      // Check to see that the number of atoms in the intial configuration file is the
191      // same as declared in simBass.
192      
# Line 163 | Line 194 | void InitializeFromFile :: read_xyz( SimInfo* the_entr
194        sprintf( painCave.errMsg,
195                 "Initialize from File error. %s n_atoms, %d, "
196                 "does not match the BASS file's n_atoms, %d.\n",
197 <               c_in_name, n_atoms, entry_plug->n_atoms );
198 <      painCave.isFatal = 1;
197 >               c_in_name, n_atoms, simnfo->n_atoms );
198 >      haveError= 1;
199        simError();
200      }
201      
202 <    //read and toss the comment line
202 >    //read the boxMat from the comment line
203      
204      eof_test = fgets(read_buffer, sizeof(read_buffer), c_in_file);
205      if(eof_test == NULL){
206        sprintf( painCave.errMsg,
207                 "error in reading commment in %s\n", c_in_name);
208 <      painCave.isFatal = 1;
208 >      haveError = 1;
209        simError();
210      }
211 +    
212 +    parseErr = parseBoxLine( read_buffer, boxMat, currTime );
213 +    if( parseErr != NULL ){
214 +      strcpy( painCave.errMsg, parseErr );
215 +      haveError = 1;
216 +      simError();
217 +    }
218 +
219 +    MPI_Bcast(boxMat, 9, MPI_DOUBLE, 0, MPI_COMM_WORLD );
220 +    MPI_Bcast(&currTime, 1, MPI_DOUBLE, 0, MPI_COMM_WORLD );
221    
222 +    if(haveError) nodeZeroError();
223  
224      for (i=0 ; i < mpiSim->getTotAtoms(); i++) {
225        
# Line 188 | Line 230 | void InitializeFromFile :: read_xyz( SimInfo* the_entr
230                  "natoms  = %d; index = %d\n"
231                  "error reading the line from the file.\n",
232                  c_in_name, n_atoms, i );
233 <        painCave.isFatal = 1;
233 >        haveError= 1;
234          simError();
235        }
236      
237 +      if(haveError) nodeZeroError();
238 +
239        // Get the Node number which wants this atom:
240        which_node = AtomToProcMap[i];    
241 <      if (which_node == mpiSim->getMyNode()) {
241 >      if (which_node == 0) {
242          parseErr = parseDumpLine( read_buffer, i );
243          if( parseErr != NULL ){
244            strcpy( painCave.errMsg, parseErr );
245 <          painCave.isFatal = 1;
245 >          haveError = 1;
246            simError();
247          }    
248 <      } else {
249 <        MPI::COMM_WORLD.Send(read_buffer, BUFFERSIZE, MPI_CHAR, which_node,
250 <                             TAKE_THIS_TAG);
251 <        MPI::COMM_WORLD.Send(&i, 1, MPI_INT, which_node, TAKE_THIS_TAG);
248 >        if(haveError) nodeZeroError();
249 >      }
250 >      
251 >      else {
252 >      
253 >        myStatus = 1;
254 >        MPI_Send(&myStatus, 1, MPI_INT, which_node,
255 >                 TAKE_THIS_TAG_INT, MPI_COMM_WORLD);
256 >        MPI_Send(read_buffer, BUFFERSIZE, MPI_CHAR, which_node,
257 >                 TAKE_THIS_TAG_CHAR, MPI_COMM_WORLD);
258 >        MPI_Send(&i, 1, MPI_INT, which_node, TAKE_THIS_TAG_INT,
259 >                 MPI_COMM_WORLD);
260 >        MPI_Recv(&myStatus, 1, MPI_INT, which_node, TAKE_THIS_TAG_INT,
261 >                 MPI_COMM_WORLD, &istatus);
262 >        
263 >        if(!myStatus) nodeZeroError();
264        }
265      }
266 <    sprintf(read_buffer, "GAMEOVER");
266 >    myStatus = -1;
267      for (j = 0; j < mpiSim->getNumberProcessors(); j++) {      
268 <      MPI::COMM_WORLD.Send(read_buffer, BUFFERSIZE, MPI_CHAR, j,
269 <                           TAKE_THIS_TAG);
268 >      MPI_Send( &myStatus, 1, MPI_INT, j,
269 >                TAKE_THIS_TAG_INT, MPI_COMM_WORLD);
270      }
271      
272    } else {
273      
274 +    MPI_Bcast(boxMat, 9, MPI_DOUBLE, 0, MPI_COMM_WORLD);
275 +    MPI_Bcast(&currTime, 1, MPI_DOUBLE, 0, MPI_COMM_WORLD);
276 +
277      done = 0;
278      while (!done) {
279 <      MPI::COMM_WORLD.Recv(read_buffer, BUFFERSIZE, MPI_CHAR, 0,
280 <                           TAKE_THIS_TAG, istatus);
281 <      if (strcmp(read_buffer, "GAMEOVER")) {
282 <        done = 1;
283 <        continue;
284 <      } else {
285 <        MPI::COMM_WORLD.Recv(&which_atom, 1, MPI_INT, 0,
286 <                             TAKE_THIS_TAG, istatus);
287 <        
288 <        parseErr = parseDumpLine( read_buffer, which_atom );
289 <        if( parseErr != NULL ){
290 <          strcpy( painCave.errMsg, parseErr );
291 <          painCave.isFatal = 1;
292 <          simError();
293 <        }
279 >
280 >      MPI_Recv(&myStatus, 1, MPI_INT, 0,
281 >               TAKE_THIS_TAG_INT, MPI_COMM_WORLD, &istatus);
282 >      
283 >      if(!myStatus) anonymousNodeDie();
284 >      
285 >      if(myStatus < 0) break;
286 >
287 >      MPI_Recv(read_buffer, BUFFERSIZE, MPI_CHAR, 0,
288 >               TAKE_THIS_TAG_CHAR, MPI_COMM_WORLD, &istatus);
289 >      MPI_Recv(&which_atom, 1, MPI_INT, 0,
290 >               TAKE_THIS_TAG_INT, MPI_COMM_WORLD, &istatus);
291 >      
292 >      myStatus = 1;
293 >      parseErr = parseDumpLine( read_buffer, which_atom );
294 >      if( parseErr != NULL ){
295 >        strcpy( painCave.errMsg, parseErr );
296 >        myStatus = 0;;
297 >        simError();
298        }
299 +      
300 +      MPI_Send( &myStatus, 1, MPI_INT, 0,
301 +                TAKE_THIS_TAG_INT, MPI_COMM_WORLD);
302 +      
303      }
304    }
305 <        
305 >    
306 > // last  thing last, enable  fatalities.
307 >  painCave.isEventLoop = 0;
308 >
309 >  for(i=0;i<3;i++)
310 >    for(j=0;j<3;j++) theBoxMat3[i][j] = boxMat[3*j+i];
311 >
312 >  simnfo->setBoxM( theBoxMat3 );
313 >  simnfo->setTime( currTime );
314 >
315 >  
316   #endif
317   }
318  
# Line 243 | Line 320 | char* InitializeFromFile::parseDumpLine(char* readLine
320  
321    char *foo; // the pointer to the current string token
322    
323 <  double rx, ry, rz; // position place holders
324 <  double vx, vy, vz; // velocity placeholders
323 >  double pos[3]; // position place holders
324 >  double vel[3]; // velocity placeholders
325    double q[4]; // the quaternions
326    double jx, jy, jz; // angular velocity placeholders;
327    double qSqr, qLength; // needed to normalize the quaternion vector.
328    
329 <  Atom **atoms = entry_plug->atoms;
329 >  Atom **atoms = simnfo->atoms;
330    DirectionalAtom* dAtom;
331    
332 <  int j, n_atoms, atomIndex;
332 >  int n_atoms, atomIndex;
333  
334   #ifdef IS_MPI
335 +  int j;
336 +
337    n_atoms = mpiSim->getTotAtoms();
338    atomIndex=-1;        
339    for (j=0; j < mpiSim->getMyNlocal(); j++) {
# Line 268 | Line 347 | char* InitializeFromFile::parseDumpLine(char* readLine
347      return strdup( painCave.errMsg );
348    }  
349   #else
350 <  n_atoms = entry_plug->n_atoms;
350 >  n_atoms = simnfo->n_atoms;
351    atomIndex = globalIndex;
352   #endif // is_mpi
353  
# Line 297 | Line 376 | char* InitializeFromFile::parseDumpLine(char* readLine
376               c_in_name, n_atoms, atomIndex );
377      return strdup( painCave.errMsg );
378    }
379 <  rx = atof( foo );
379 >  pos[0] = atof( foo );
380    
381    foo = strtok(NULL, " ,;\t");
382    if(foo == NULL){
# Line 307 | Line 386 | char* InitializeFromFile::parseDumpLine(char* readLine
386               c_in_name, n_atoms, atomIndex );
387      return strdup( painCave.errMsg );
388    }
389 <  ry = atof( foo );
389 >  pos[1] = atof( foo );
390      
391    foo = strtok(NULL, " ,;\t");
392    if(foo == NULL){
# Line 317 | Line 396 | char* InitializeFromFile::parseDumpLine(char* readLine
396               c_in_name, n_atoms, atomIndex );
397      return strdup( painCave.errMsg );
398    }
399 <  rz = atof( foo );    
399 >  pos[2] = atof( foo );    
400  
401  
402    // get the velocities
# Line 330 | Line 409 | char* InitializeFromFile::parseDumpLine(char* readLine
409               c_in_name, n_atoms, atomIndex );
410      return strdup( painCave.errMsg );
411    }
412 <  vx = atof( foo );
412 >  vel[0] = atof( foo );
413      
414    foo = strtok(NULL, " ,;\t");
415    if(foo == NULL){
# Line 340 | Line 419 | char* InitializeFromFile::parseDumpLine(char* readLine
419               c_in_name, n_atoms, atomIndex );
420      return strdup( painCave.errMsg );
421    }
422 <  vy = atof( foo );
422 >  vel[1] = atof( foo );
423      
424    foo = strtok(NULL, " ,;\t");
425    if(foo == NULL){
# Line 350 | Line 429 | char* InitializeFromFile::parseDumpLine(char* readLine
429               c_in_name, n_atoms, atomIndex );
430      return strdup( painCave.errMsg );
431    }
432 <  vz = atof( foo );
432 >  vel[2] = atof( foo );
433      
434      
435    // get the quaternions
# Line 452 | Line 531 | char* InitializeFromFile::parseDumpLine(char* readLine
531      
532    // add the positions and velocities to the atom
533      
534 <  atoms[atomIndex]->setX( rx );
535 <  atoms[atomIndex]->setY( ry );
457 <  atoms[atomIndex]->setZ( rz );
458 <    
459 <  atoms[atomIndex]->set_vx( vx );
460 <  atoms[atomIndex]->set_vy( vy );
461 <  atoms[atomIndex]->set_vz( vz );
534 >  atoms[atomIndex]->setPos( pos );
535 >  atoms[atomIndex]->setVel( vel );
536  
537    return NULL;
538   }
539 +
540 +
541 + char* InitializeFromFile::parseBoxLine(char* readLine, double boxMat[9],
542 +                                       double &time ){
543 +
544 +  char *foo; // the pointer to the current string token
545 +
546 +  // set the string tokenizer
547 +  
548 +  foo = strtok(readLine, " ,;\t");
549 +  // set the timeToken.
550 +
551 +  if(foo == NULL){
552 +    sprintf( painCave.errMsg,
553 +             "error in reading Time from %s\n",
554 +             c_in_name );
555 +    return strdup( painCave.errMsg );
556 +  }
557 +  time = atof( foo );
558 +
559 +  // get the Hx vector
560 +
561 +  foo = strtok(NULL, " ,;\t");
562 +  if(foo == NULL){
563 +    sprintf( painCave.errMsg,
564 +             "error in reading Hx[0] from %s\n",
565 +             c_in_name );
566 +    return strdup( painCave.errMsg );
567 +  }
568 +  boxMat[0] = atof( foo );
569 +  
570 +  foo = strtok(NULL, " ,;\t");
571 +  if(foo == NULL){
572 +    sprintf( painCave.errMsg,
573 +             "error in reading Hx[1] from %s\n",
574 +             c_in_name );
575 +    return strdup( painCave.errMsg );
576 +  }
577 +  boxMat[1] = atof( foo );
578 +    
579 +  foo = strtok(NULL, " ,;\t");
580 +  if(foo == NULL){
581 +    sprintf( painCave.errMsg,
582 +             "error in reading Hx[2] from %s\n",
583 +             c_in_name );
584 +    return strdup( painCave.errMsg );
585 +  }
586 +  boxMat[2] = atof( foo );    
587 +
588 +  // get the Hy vector
589 +
590 +  foo = strtok(NULL, " ,;\t");
591 +  if(foo == NULL){
592 +    sprintf( painCave.errMsg,
593 +             "error in reading Hy[0] from %s\n",
594 +             c_in_name );
595 +    return strdup( painCave.errMsg );
596 +  }
597 +  boxMat[3] = atof( foo );
598 +  
599 +  foo = strtok(NULL, " ,;\t");
600 +  if(foo == NULL){
601 +    sprintf( painCave.errMsg,
602 +             "error in reading Hy[1] from %s\n",
603 +             c_in_name );
604 +    return strdup( painCave.errMsg );
605 +  }
606 +  boxMat[4] = atof( foo );
607 +    
608 +  foo = strtok(NULL, " ,;\t");
609 +  if(foo == NULL){
610 +    sprintf( painCave.errMsg,
611 +             "error in reading Hy[2] from %s\n",
612 +             c_in_name );
613 +    return strdup( painCave.errMsg );
614 +  }
615 +  boxMat[5] = atof( foo );    
616 +
617 +  // get the Hz vector
618 +
619 +  foo = strtok(NULL, " ,;\t");
620 +  if(foo == NULL){
621 +    sprintf( painCave.errMsg,
622 +             "error in reading Hz[0] from %s\n",
623 +             c_in_name );
624 +    return strdup( painCave.errMsg );
625 +  }
626 +  boxMat[6] = atof( foo );
627 +  
628 +  foo = strtok(NULL, " ,;\t");
629 +  if(foo == NULL){
630 +    sprintf( painCave.errMsg,
631 +             "error in reading Hz[1] from %s\n",
632 +             c_in_name );
633 +    return strdup( painCave.errMsg );
634 +  }
635 +  boxMat[7] = atof( foo );
636 +    
637 +  foo = strtok(NULL, " ,;\t");
638 +  if(foo == NULL){
639 +    sprintf( painCave.errMsg,
640 +             "error in reading Hz[2] from %s\n",
641 +             c_in_name );
642 +    return strdup( painCave.errMsg );
643 +  }
644 +  boxMat[8] = atof( foo );    
645 +
646 +  return NULL;
647 + }
648 +
649 +
650 + #ifdef IS_MPI
651 +
652 + // a couple of functions to let us escape the read loop
653 +
654 + void initFile::nodeZeroError( void ){
655 +  int j, myStatus;
656 +  
657 +  myStatus = 0;
658 +  for (j = 0; j < mpiSim->getNumberProcessors(); j++) {      
659 +    MPI_Send( &myStatus, 1, MPI_INT, j,
660 +              TAKE_THIS_TAG_INT, MPI_COMM_WORLD);
661 +  }  
662 +  
663 +
664 +  MPI_Finalize();
665 +  exit (0);
666 +  
667 + }
668 +
669 + void initFile::anonymousNodeDie( void ){
670 +
671 +  MPI_Finalize();
672 +  exit (0);
673 + }
674 +
675 + #endif //is_mpi

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