Actual source code: singlefile.c
petsc-3.7.1 2016-05-15
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      2: #include <petsc/private/tsimpl.h>        /*I "petscts.h"  I*/

      4: typedef struct {
      5:   PetscViewer viewer;
      6: } TSTrajectory_Singlefile;

     10: static PetscErrorCode TSTrajectorySet_Singlefile(TSTrajectory tj,TS ts,PetscInt stepnum,PetscReal time,Vec X)
     11: {
     12:   TSTrajectory_Singlefile *sf = (TSTrajectory_Singlefile*)tj->data;
     13:   PetscErrorCode          ierr;
     14:   const char              *filename;

     17:   if (stepnum == 0) {
     18:     PetscViewerCreate(PETSC_COMM_WORLD,&sf->viewer);
     19:     PetscViewerSetType(sf->viewer,PETSCVIEWERBINARY);
     20:     PetscViewerFileSetMode(sf->viewer,FILE_MODE_WRITE);
     21:     PetscObjectGetName((PetscObject)tj,&filename);
     22:     PetscViewerFileSetName(sf->viewer,filename);
     23:   }
     24:   VecView(X,sf->viewer);
     25:   PetscViewerBinaryWrite(sf->viewer,&time,1,PETSC_REAL,PETSC_FALSE);
     26:   return(0);
     27: }

     31: static PetscErrorCode TSTrajectoryDestroy_Singlefile(TSTrajectory tj)
     32: {
     33:   PetscErrorCode          ierr;
     34:   TSTrajectory_Singlefile *sf = (TSTrajectory_Singlefile*)tj->data;

     37:   PetscViewerDestroy(&sf->viewer);
     38:   PetscFree(sf);
     39:   return(0);
     40: }

     42: /*MC
     43:       TSTRAJECTORYSINGLEFILE - Stores all solutions of the ODE/ADE into a single file followed by each timestep. Does not save the intermediate stages in a multistage method

     45:   Level: intermediate

     47: .seealso:  TSTrajectoryCreate(), TS, TSTrajectorySetType()

     49: M*/
     52: PETSC_EXTERN PetscErrorCode TSTrajectoryCreate_Singlefile(TSTrajectory tj,TS ts)
     53: {
     54:   PetscErrorCode          ierr;
     55:   TSTrajectory_Singlefile *sf;

     58:   PetscNew(&sf);
     59:   tj->data         = sf;
     60:   tj->ops->set     = TSTrajectorySet_Singlefile;
     61:   tj->ops->get     = NULL;
     62:   tj->ops->destroy = TSTrajectoryDestroy_Singlefile;
     63:   return(0);
     64: }