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root/group/branches/no-template-branch/OOPSE/libmdtools/InitializeFromFile.cpp
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Comparing trunk/OOPSE/libmdtools/InitializeFromFile.cpp (file contents):
Revision 417 by gezelter, Thu Mar 27 01:49:45 2003 UTC vs.
Revision 436 by chuckv, Fri Mar 28 21:45:03 2003 UTC

# Line 15 | Line 15
15   #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 > void nodeZeroError( void );
22 > void anonymousNodeDie( void );
23 >
24   #endif // is_mpi
25  
26   InitializeFromFile :: InitializeFromFile( char *in_name ){
# Line 139 | Line 144 | void InitializeFromFile :: read_xyz( SimInfo* the_entr
144    // MPI Section of code..........
145   #else //IS_MPI
146  
147 +  // first thing first, suspend fatalities.
148 +  painCave.isEventLoop = 1;
149 +
150 +  int myStatus; // 1 = wakeup & success; 0 = error; -1 = AllDone
151 +  int haveError;
152 +  
153    MPI::Status istatus;
154    int *AtomToProcMap = mpiSim->getAtomToProcMap();
155  
156 +  
157 +  haveError = 0;
158    if (worldRank == 0) {
159 +
160      eof_test = fgets(read_buffer, sizeof(read_buffer), c_in_file);
161      if( eof_test == NULL ){
162        sprintf( painCave.errMsg,
163                 "Error reading 1st line of %d \n ",c_in_name);
164 <      painCave.isFatal = 1;
164 >      haveError = 1;
165        simError();
166      }
167      
# Line 164 | Line 178 | void InitializeFromFile :: read_xyz( SimInfo* the_entr
178                 "Initialize from File error. %s n_atoms, %d, "
179                 "does not match the BASS file's n_atoms, %d.\n",
180                 c_in_name, n_atoms, entry_plug->n_atoms );
181 <      painCave.isFatal = 1;
181 >      haveError= 1;
182        simError();
183      }
184      
# Line 174 | Line 188 | void InitializeFromFile :: read_xyz( SimInfo* the_entr
188      if(eof_test == NULL){
189        sprintf( painCave.errMsg,
190                 "error in reading commment in %s\n", c_in_name);
191 <      painCave.isFatal = 1;
191 >      haveError= 1;
192        simError();
193      }
194    
195 +    if(haveError) nodeZeroError();
196  
197      for (i=0 ; i < mpiSim->getTotAtoms(); i++) {
198        
# Line 188 | Line 203 | void InitializeFromFile :: read_xyz( SimInfo* the_entr
203                  "natoms  = %d; index = %d\n"
204                  "error reading the line from the file.\n",
205                  c_in_name, n_atoms, i );
206 <        painCave.isFatal = 1;
206 >        haveError= 1;
207          simError();
208        }
209      
210 +      if(haveError) nodeZeroError();
211 +
212        // Get the Node number which wants this atom:
213        which_node = AtomToProcMap[i];    
214 <      if (which_node == mpiSim->getMyNode()) {
214 >      if (which_node == 0) {
215          parseErr = parseDumpLine( read_buffer, i );
216          if( parseErr != NULL ){
217            strcpy( painCave.errMsg, parseErr );
218 <          painCave.isFatal = 1;
218 >          haveError = 1;
219            simError();
220          }    
221 <      } else {
221 >        if(haveError) nodeZeroError();
222 >      }
223 >      
224 >      else {
225 >      
226 >        myStatus = 1;
227 >        MPI::COMM_WORLD.Send(&myStatus, 1, MPI_INT, which_node,
228 >                             TAKE_THIS_TAG_INT);
229          MPI::COMM_WORLD.Send(read_buffer, BUFFERSIZE, MPI_CHAR, which_node,
230 <                             TAKE_THIS_TAG);
231 <        MPI::COMM_WORLD.Send(&i, 1, MPI_INT, which_node, TAKE_THIS_TAG);
230 >                             TAKE_THIS_TAG_CHAR);
231 >        MPI::COMM_WORLD.Send(&i, 1, MPI_INT, which_node, TAKE_THIS_TAG_INT);
232 >        MPI::COMM_WORLD.Recv(&myStatus, 1, MPI_INT, which_node, TAKE_THIS_TAG_INT, istatus);
233 >        
234 >        if(!myStatus) nodeZeroError();
235        }
236      }
237 <    sprintf(read_buffer, "GAMEOVER");
237 >    myStatus = -1;
238      for (j = 0; j < mpiSim->getNumberProcessors(); j++) {      
239 <      MPI::COMM_WORLD.Send(read_buffer, BUFFERSIZE, MPI_CHAR, j,
240 <                           TAKE_THIS_TAG);
239 >      MPI::COMM_WORLD.Send( &myStatus, 1, MPI_INT, j,
240 >                            TAKE_THIS_TAG_INT);
241      }
242 <
242 >    
243    } else {
244 <
244 >    
245      done = 0;
246      while (!done) {
247 <      MPI::COMM_WORLD.Recv(read_buffer, BUFFERSIZE, MPI_CHAR, 0,
248 <                           TAKE_THIS_TAG, istatus);
249 <      if (strcmp(read_buffer, "GAMEOVER")) {
250 <        done = 1;
251 <        continue;
252 <      } else {
253 <        MPI::COMM_WORLD.Recv(&which_atom, 1, MPI_INT, 0,
254 <                             TAKE_THIS_TAG, istatus);
255 <        parseErr = parseDumpLine( read_buffer, which_atom );
256 <        if( parseErr != NULL ){
257 <          strcpy( painCave.errMsg, parseErr );
258 <          painCave.isFatal = 1;
259 <          simError();
260 <        }
247 >
248 >      MPI::COMM_WORLD.Recv(&myStatus, 1, MPI_INT, 0,
249 >                           TAKE_THIS_TAG_INT, istatus);
250 >      
251 >      if(!myStatus) anonymousNodeDie();
252 >      
253 >      if(myStatus < 0) break;
254 >
255 >      MPI::COMM_WORLD.Recv(read_buffer, BUFFERSIZE, MPI_CHAR, 0,
256 >                           TAKE_THIS_TAG_CHAR, istatus);
257 >      MPI::COMM_WORLD.Recv(&which_atom, 1, MPI_INT, 0,
258 >                           TAKE_THIS_TAG_INT, istatus);
259 >      
260 >      myStatus = 1;
261 >      parseErr = parseDumpLine( read_buffer, which_atom );
262 >      if( parseErr != NULL ){
263 >        strcpy( painCave.errMsg, parseErr );
264 >        myStatus = 0;;
265 >        simError();
266        }
267 +      
268 +      MPI::COMM_WORLD.Send( &myStatus, 1, MPI_INT, 0,
269 +                            TAKE_THIS_TAG_INT);
270 +      
271      }
272    }
273 <        
273 >    
274 > // last  thing last, enable  fatalities.
275 >  painCave.isEventLoop = 0;
276 >  
277   #endif
278   }
279  
280 < char* InitializeFromFile::parseDumpLine(char* readLine, int atomIndex){
280 > char* InitializeFromFile::parseDumpLine(char* readLine, int globalIndex){
281  
282    char *foo; // the pointer to the current string token
283    
# Line 251 | Line 290 | char* InitializeFromFile::parseDumpLine(char* readLine
290    Atom **atoms = entry_plug->atoms;
291    DirectionalAtom* dAtom;
292    
293 <  int n_atoms;
293 >  int j, n_atoms, atomIndex;
294  
295   #ifdef IS_MPI
296    n_atoms = mpiSim->getTotAtoms();
297 +  atomIndex=-1;        
298 +  for (j=0; j < mpiSim->getMyNlocal(); j++) {
299 +    if (atoms[j]->getGlobalIndex() == globalIndex) atomIndex = j;
300 +  }
301 +  if (atomIndex == -1) {
302 +    sprintf( painCave.errMsg,
303 +             "Initialize from file error. Atom at index %d "
304 +             "in file %s does not exist on processor %d .\n",
305 +             globalIndex, c_in_name, mpiSim->getMyNode() );
306 +    return strdup( painCave.errMsg );
307 +  }  
308   #else
309    n_atoms = entry_plug->n_atoms;
310 +  atomIndex = globalIndex;
311   #endif // is_mpi
312  
262 –
313    // set the string tokenizer
314    
315    foo = strtok(readLine, " ,;\t");
# Line 450 | Line 500 | char* InitializeFromFile::parseDumpLine(char* readLine
500  
501    return NULL;
502   }
503 +
504 +
505 + #ifdef IS_MPI
506 +
507 + // a couple of functions to let us escape the read loop
508 +
509 + void nodeZeroError( void ){
510 +  int j, myStatus;
511 +  
512 +  myStatus = 0;
513 +  for (j = 0; j < mpiSim->getNumberProcessors(); j++) {      
514 +    MPI::COMM_WORLD.Send( &myStatus, 1, MPI_INT, j,
515 +                          TAKE_THIS_TAG_INT);
516 +  }  
517 +  
518 +
519 +  MPI_Finalize();
520 +  exit (0);
521 +  
522 + }
523 +
524 + void anonymousNodeDie( void ){
525 +
526 +  MPI_Finalize();
527 +  exit (0);
528 + }
529 +
530 + #endif //is_mpi

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