1 2 #include <petsc/private/tsimpl.h> /*I "petscts.h" I*/ 3 4 #undef __FUNCT__ 5 #define __FUNCT__ "OutputBIN" 6 static PetscErrorCode OutputBIN(const char *filename, PetscViewer *viewer) 7 { 8 PetscErrorCode ierr; 9 10 PetscFunctionBeginUser; 11 ierr = PetscViewerCreate(PETSC_COMM_WORLD, viewer);CHKERRQ(ierr); 12 ierr = PetscViewerSetType(*viewer, PETSCVIEWERBINARY);CHKERRQ(ierr); 13 ierr = PetscViewerFileSetMode(*viewer,FILE_MODE_WRITE);CHKERRQ(ierr); 14 ierr = PetscViewerFileSetName(*viewer, filename);CHKERRQ(ierr); 15 PetscFunctionReturn(0); 16 } 17 18 19 #undef __FUNCT__ 20 #define __FUNCT__ "TSTrajectorySet_Basic" 21 PetscErrorCode TSTrajectorySet_Basic(TSTrajectory jac,TS ts,PetscInt stepnum,PetscReal time,Vec X) 22 { 23 PetscViewer viewer; 24 PetscInt ns,i; 25 Vec *Y; 26 char filename[PETSC_MAX_PATH_LEN]; 27 PetscReal tprev; 28 PetscErrorCode ierr; 29 30 PetscFunctionBeginUser; 31 if (stepnum == 0) { 32 #if defined(PETSC_HAVE_POPEN) 33 ierr = TSGetTotalSteps(ts,&stepnum);CHKERRQ(ierr); 34 if (stepnum == 0) { 35 PetscMPIInt rank; 36 ierr = MPI_Comm_rank(PetscObjectComm((PetscObject)ts),&rank);CHKERRQ(ierr); 37 if (!rank) { 38 char command[PETSC_MAX_PATH_LEN]; 39 FILE *fd; 40 int err; 41 42 ierr = PetscMemzero(command,sizeof(command));CHKERRQ(ierr); 43 ierr = PetscSNPrintf(command,PETSC_MAX_PATH_LEN,"rm -fr %s","SA-data");CHKERRQ(ierr); 44 ierr = PetscPOpen(PETSC_COMM_SELF,NULL,command,"r",&fd);CHKERRQ(ierr); 45 ierr = PetscPClose(PETSC_COMM_SELF,fd,&err);CHKERRQ(ierr); 46 ierr = PetscSNPrintf(command,PETSC_MAX_PATH_LEN,"mkdir %s","SA-data");CHKERRQ(ierr); 47 ierr = PetscPOpen(PETSC_COMM_SELF,NULL,command,"r",&fd);CHKERRQ(ierr); 48 ierr = PetscPClose(PETSC_COMM_SELF,fd,&err);CHKERRQ(ierr); 49 } 50 } 51 #endif 52 ierr = PetscSNPrintf(filename,sizeof(filename),"SA-data/SA-%06d.bin",stepnum);CHKERRQ(ierr); 53 ierr = OutputBIN(filename,&viewer);CHKERRQ(ierr); 54 ierr = VecView(X,viewer);CHKERRQ(ierr); 55 ierr = PetscViewerBinaryWrite(viewer,&time,1,PETSC_REAL,PETSC_FALSE);CHKERRQ(ierr); 56 PetscFunctionReturn(0); 57 } 58 ierr = TSGetTotalSteps(ts,&stepnum);CHKERRQ(ierr); 59 ierr = PetscSNPrintf(filename,sizeof(filename),"SA-data/SA-%06d.bin",stepnum);CHKERRQ(ierr); 60 ierr = OutputBIN(filename,&viewer);CHKERRQ(ierr); 61 ierr = VecView(X,viewer);CHKERRQ(ierr); 62 ierr = PetscViewerBinaryWrite(viewer,&time,1,PETSC_REAL,PETSC_FALSE);CHKERRQ(ierr); 63 64 ierr = TSGetStages(ts,&ns,&Y);CHKERRQ(ierr); 65 for (i=0;i<ns;i++) { 66 ierr = VecView(Y[i],viewer);CHKERRQ(ierr); 67 } 68 69 ierr = TSGetPrevTime(ts,&tprev);CHKERRQ(ierr); 70 ierr = PetscViewerBinaryWrite(viewer,&tprev,1,PETSC_REAL,PETSC_FALSE);CHKERRQ(ierr); 71 72 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 73 PetscFunctionReturn(0); 74 } 75 76 #undef __FUNCT__ 77 #define __FUNCT__ "TSTrajectoryGet_Basic" 78 PetscErrorCode TSTrajectoryGet_Basic(TSTrajectory jac,TS ts,PetscInt stepnum,PetscReal *t) 79 { 80 Vec Sol,*Y; 81 PetscInt Nr,i; 82 PetscViewer viewer; 83 PetscReal timepre; 84 char filename[PETSC_MAX_PATH_LEN]; 85 PetscErrorCode ierr; 86 87 PetscFunctionBeginUser; 88 ierr = TSGetTotalSteps(ts,&stepnum);CHKERRQ(ierr); 89 ierr = PetscSNPrintf(filename,sizeof filename,"SA-data/SA-%06d.bin",stepnum);CHKERRQ(ierr); 90 ierr = PetscViewerBinaryOpen(PETSC_COMM_WORLD,filename,FILE_MODE_READ,&viewer);CHKERRQ(ierr); 91 92 ierr = TSGetSolution(ts,&Sol);CHKERRQ(ierr); 93 ierr = VecLoad(Sol,viewer);CHKERRQ(ierr); 94 95 ierr = PetscViewerBinaryRead(viewer,t,1,NULL,PETSC_REAL);CHKERRQ(ierr); 96 97 if (stepnum != 0) { 98 ierr = TSGetStages(ts,&Nr,&Y);CHKERRQ(ierr); 99 for (i=0;i<Nr ;i++) { 100 ierr = VecLoad(Y[i],viewer);CHKERRQ(ierr); 101 } 102 ierr = PetscViewerBinaryRead(viewer,&timepre,1,NULL,PETSC_REAL);CHKERRQ(ierr); 103 } 104 105 ierr = TSSetTimeStep(ts,-(*t)+timepre);CHKERRQ(ierr); 106 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 107 PetscFunctionReturn(0); 108 } 109 110 /*MC 111 TSTRAJECTORYBASIC - Stores each solution of the ODE/ADE in a file 112 113 Level: intermediate 114 115 .seealso: TSTrajectoryCreate(), TS, TSTrajectorySetType() 116 117 M*/ 118 #undef __FUNCT__ 119 #define __FUNCT__ "TSTrajectoryCreate_Basic" 120 PETSC_EXTERN PetscErrorCode TSTrajectoryCreate_Basic(TSTrajectory ts) 121 { 122 PetscFunctionBegin; 123 ts->ops->set = TSTrajectorySet_Basic; 124 ts->ops->get = TSTrajectoryGet_Basic; 125 PetscFunctionReturn(0); 126 } 127