1 2 /* 3 Code for manipulating distributed regular arrays in parallel. 4 */ 5 6 #include <petsc-private/dmdaimpl.h> /*I "petscdmda.h" I*/ 7 8 /* Logging support */ 9 PetscLogEvent DMDA_LocalADFunction; 10 11 #undef __FUNCT__ 12 #define __FUNCT__ "DMDestroy_Private" 13 /* 14 DMDestroy_Private - handles the work vectors created by DMGetGlobalVector() and DMGetLocalVector() 15 16 */ 17 PetscErrorCode DMDestroy_Private(DM dm,PetscBool *done) 18 { 19 PetscErrorCode ierr; 20 PetscErrorCode i,cnt = 0; 21 22 PetscFunctionBegin; 23 PetscValidHeaderSpecific(dm,DM_CLASSID,1); 24 *done = PETSC_FALSE; 25 26 for (i=0; i<DM_MAX_WORK_VECTORS; i++) { 27 if (dm->localin[i]) cnt++; 28 if (dm->globalin[i]) cnt++; 29 } 30 31 if (--((PetscObject)dm)->refct - cnt > 0) PetscFunctionReturn(0); 32 33 /* 34 Need this test because the dm references the vectors that 35 reference the dm, so destroying the dm calls destroy on the 36 vectors that cause another destroy on the dm 37 */ 38 if (((PetscObject)dm)->refct < 0) PetscFunctionReturn(0); 39 ((PetscObject)dm)->refct = 0; 40 41 for (i=0; i<DM_MAX_WORK_VECTORS; i++) { 42 if (dm->localout[i]) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"Destroying a DM that has a local vector obtained with DMGetLocalVector()"); 43 ierr = VecDestroy(&dm->localin[i]);CHKERRQ(ierr); 44 if (dm->globalout[i]) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"Destroying a DM that has a global vector obtained with DMGetGlobalVector()"); 45 ierr = VecDestroy(&dm->globalin[i]);CHKERRQ(ierr); 46 } 47 ierr = ISLocalToGlobalMappingDestroy(&dm->ltogmap);CHKERRQ(ierr); 48 ierr = ISLocalToGlobalMappingDestroy(&dm->ltogmapb);CHKERRQ(ierr); 49 50 *done = PETSC_TRUE; 51 PetscFunctionReturn(0); 52 } 53 54 #undef __FUNCT__ 55 #define __FUNCT__ "DMDestroy_DA" 56 PetscErrorCode DMDestroy_DA(DM da) 57 { 58 PetscErrorCode ierr; 59 PetscErrorCode i; 60 DM_DA *dd = (DM_DA*)da->data; 61 62 PetscFunctionBegin; 63 /* destroy the external/common part */ 64 for (i=0; i<DMDA_MAX_WORK_ARRAYS; i++) { 65 ierr = PetscFree(dd->startghostedout[i]);CHKERRQ(ierr); 66 ierr = PetscFree(dd->startghostedin[i]);CHKERRQ(ierr); 67 ierr = PetscFree(dd->startout[i]);CHKERRQ(ierr); 68 ierr = PetscFree(dd->startin[i]);CHKERRQ(ierr); 69 } 70 71 ierr = VecScatterDestroy(&dd->ltog);CHKERRQ(ierr); 72 ierr = VecScatterDestroy(&dd->gtol);CHKERRQ(ierr); 73 ierr = VecScatterDestroy(&dd->ltol);CHKERRQ(ierr); 74 ierr = VecDestroy(&dd->natural);CHKERRQ(ierr); 75 ierr = VecScatterDestroy(&dd->gton);CHKERRQ(ierr); 76 ierr = AODestroy(&dd->ao);CHKERRQ(ierr); 77 78 ierr = PetscFree(dd->lx);CHKERRQ(ierr); 79 ierr = PetscFree(dd->ly);CHKERRQ(ierr); 80 ierr = PetscFree(dd->lz);CHKERRQ(ierr); 81 82 if (dd->fieldname) { 83 for (i=0; i<dd->w; i++) { 84 ierr = PetscFree(dd->fieldname[i]);CHKERRQ(ierr); 85 } 86 ierr = PetscFree(dd->fieldname);CHKERRQ(ierr); 87 } 88 if (dd->coordinatename) { 89 for (i=0; i<dd->dim; i++) { 90 ierr = PetscFree(dd->coordinatename[i]);CHKERRQ(ierr); 91 } 92 ierr = PetscFree(dd->coordinatename);CHKERRQ(ierr); 93 } 94 ierr = ISColoringDestroy(&dd->localcoloring);CHKERRQ(ierr); 95 ierr = ISColoringDestroy(&dd->ghostedcoloring);CHKERRQ(ierr); 96 97 ierr = PetscFree(dd->neighbors);CHKERRQ(ierr); 98 ierr = PetscFree(dd->dfill);CHKERRQ(ierr); 99 ierr = PetscFree(dd->ofill);CHKERRQ(ierr); 100 ierr = PetscFree(dd->ofillcols);CHKERRQ(ierr); 101 ierr = PetscFree(dd->e);CHKERRQ(ierr); 102 103 /* ierr = PetscSectionDestroy(&dd->defaultGlobalSection);CHKERRQ(ierr); */ 104 /* This was originally freed in DMDestroy(), but that prevents reference counting of backend objects */ 105 ierr = PetscFree(dd);CHKERRQ(ierr); 106 PetscFunctionReturn(0); 107 } 108