PetscErrorCode ExactSolution(DM packer,Vec U) { PF pf; Vec x,u_global; PetscScalar *w; DM da; PetscErrorCode ierr; PetscInt m; PetscFunctionBeginUser; ierr = DMCompositeGetEntries(packer,&m,&da);CHKERRQ(ierr); ierr = PFCreate(PETSC_COMM_WORLD,1,2,&pf);CHKERRQ(ierr); /* The cast through PETSC_UINTPTR_T is so that compilers will warn about casting to void * from void(*)(void) */ ierr = PFSetType(pf,PFQUICK,(void*)(PETSC_UINTPTR_T)u_solution);CHKERRQ(ierr); ierr = DMGetCoordinates(da,&x);CHKERRQ(ierr); if (!x) { ierr = DMDASetUniformCoordinates(da,0.0,1.0,0.0,1.0,0.0,1.0);CHKERRQ(ierr); ierr = DMGetCoordinates(da,&x);CHKERRQ(ierr); } ierr = DMCompositeGetAccess(packer,U,&w,&u_global,0);CHKERRQ(ierr); if (w) w[0] = .25; ierr = PFApplyVec(pf,x,u_global);CHKERRQ(ierr); ierr = PFDestroy(&pf);CHKERRQ(ierr); ierr = DMCompositeRestoreAccess(packer,U,&w,&u_global,0);CHKERRQ(ierr); PetscFunctionReturn(0); }
/*@C DMDACreatePF - Creates an appropriately dimensioned PF mathematical function object from a DMDA. Collective on DMDA Input Parameter: . da - initial distributed array Output Parameter: . pf - the mathematical function object Level: advanced .keywords: distributed array, grid function .seealso: DMDACreate1d(), DMDACreate2d(), DMDACreate3d(), DMDestroy(), DMCreateGlobalVector() @*/ PetscErrorCode DMDACreatePF(DM da,PF *pf) { PetscErrorCode ierr; DM_DA *dd = (DM_DA*)da->data; PetscFunctionBegin; PetscValidHeaderSpecific(da,DM_CLASSID,1); PetscValidPointer(pf,2); ierr = PFCreate(((PetscObject)da)->comm,dd->dim,dd->w,pf);CHKERRQ(ierr); PetscFunctionReturn(0); }
int main(int argc,char **argv) { PetscErrorCode ierr; DM da; Vec global; PF pf; ierr = PetscInitialize(&argc,&argv,(char*)0,help);CHKERRQ(ierr); ierr = DMDACreate1d(PETSC_COMM_WORLD,DMDA_BOUNDARY_NONE,10,3,1,PETSC_NULL,&da);CHKERRQ(ierr); ierr = DMCreateGlobalVector(da,&global);CHKERRQ(ierr); ierr = PFCreate(PETSC_COMM_WORLD,1,3,&pf);CHKERRQ(ierr); ierr = PFSet(pf,apply,PETSC_NULL,PETSC_NULL,PETSC_NULL,PETSC_NULL);CHKERRQ(ierr); ierr = PFApplyVec(pf,PETSC_NULL,global);CHKERRQ(ierr); ierr = PFDestroy(&pf);CHKERRQ(ierr); ierr = VecView(global,PETSC_VIEWER_DRAW_WORLD);CHKERRQ(ierr); ierr = VecDestroy(&global);CHKERRQ(ierr); ierr = DMDestroy(&da);CHKERRQ(ierr); ierr = PetscFinalize(); return 0; }
PetscErrorCode WaveFuncCreate(MPI_Comm comm, WaveFunc *p_self) { PFCreate(comm, 1, 1, p_self); return 0; }
int main(int argc,char **argv) { PetscErrorCode ierr; PetscInt nredundant1 = 5,nredundant2 = 2,i,*ridx1,*ridx2,*lidx1,*lidx2,nlocal; PetscMPIInt rank; PetscScalar *redundant1,*redundant2; DMComposite packer; Vec global,local1,local2; PF pf; DA da1,da2; PetscViewer sviewer; ierr = PetscInitialize(&argc,&argv,(char*)0,help);CHKERRQ(ierr); ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr); ierr = DMCompositeCreate(PETSC_COMM_WORLD,&packer);CHKERRQ(ierr); ierr = PetscMalloc(nredundant1*sizeof(PetscScalar),&redundant1);CHKERRQ(ierr); ierr = DMCompositeAddArray(packer,0,nredundant1);CHKERRQ(ierr); ierr = DACreate1d(PETSC_COMM_WORLD,DA_NONPERIODIC,8,1,1,PETSC_NULL,&da1);CHKERRQ(ierr); ierr = DACreateLocalVector(da1,&local1);CHKERRQ(ierr); ierr = DMCompositeAddDM(packer,(DM)da1);CHKERRQ(ierr); ierr = PetscMalloc(nredundant2*sizeof(PetscScalar),&redundant2);CHKERRQ(ierr); ierr = DMCompositeAddArray(packer,0,nredundant2);CHKERRQ(ierr); ierr = DACreate1d(PETSC_COMM_WORLD,DA_NONPERIODIC,6,1,1,PETSC_NULL,&da2);CHKERRQ(ierr); ierr = DACreateLocalVector(da2,&local2);CHKERRQ(ierr); ierr = DMCompositeAddDM(packer,(DM)da2);CHKERRQ(ierr); ierr = DMCompositeCreateGlobalVector(packer,&global);CHKERRQ(ierr); ierr = PFCreate(PETSC_COMM_WORLD,1,1,&pf);CHKERRQ(ierr); ierr = PFSetType(pf,PFIDENTITY,PETSC_NULL);CHKERRQ(ierr); ierr = PFApplyVec(pf,PETSC_NULL,global);CHKERRQ(ierr); ierr = PFDestroy(pf);CHKERRQ(ierr); ierr = VecView(global,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = DMCompositeScatter(packer,global,redundant1,local1,redundant2,local2);CHKERRQ(ierr); ierr = PetscViewerASCIISynchronizedPrintf(PETSC_VIEWER_STDOUT_WORLD,"[%d] My part of redundant1 array\n",rank);CHKERRQ(ierr); ierr = PetscScalarView(nredundant1,redundant1,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = PetscViewerASCIISynchronizedPrintf(PETSC_VIEWER_STDOUT_WORLD,"[%d] My part of da1 vector\n",rank);CHKERRQ(ierr); ierr = PetscViewerGetSingleton(PETSC_VIEWER_STDOUT_WORLD,&sviewer);CHKERRQ(ierr); ierr = VecView(local1,sviewer);CHKERRQ(ierr); ierr = PetscViewerRestoreSingleton(PETSC_VIEWER_STDOUT_WORLD,&sviewer);CHKERRQ(ierr); ierr = PetscViewerASCIISynchronizedPrintf(PETSC_VIEWER_STDOUT_WORLD,"[%d] My part of redundant2 array\n",rank);CHKERRQ(ierr); ierr = PetscScalarView(nredundant2,redundant2,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = PetscViewerASCIISynchronizedPrintf(PETSC_VIEWER_STDOUT_WORLD,"[%d] My part of da2 vector\n",rank);CHKERRQ(ierr); ierr = PetscViewerGetSingleton(PETSC_VIEWER_STDOUT_WORLD,&sviewer);CHKERRQ(ierr); ierr = VecView(local2,sviewer);CHKERRQ(ierr); ierr = PetscViewerRestoreSingleton(PETSC_VIEWER_STDOUT_WORLD,&sviewer);CHKERRQ(ierr); for (i=0; i<nredundant1; i++) redundant1[i] = (rank+2)*i; for (i=0; i<nredundant2; i++) redundant2[i] = (rank+10)*i; ierr = DMCompositeGather(packer,global,redundant1,local1,redundant2,local2);CHKERRQ(ierr); ierr = VecView(global,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); /* get the global numbering for each subvector/array element */ ierr = DMCompositeGetGlobalIndices(packer,&ridx1,&lidx1,&ridx2,&lidx2);CHKERRQ(ierr); ierr = PetscViewerASCIISynchronizedPrintf(PETSC_VIEWER_STDOUT_WORLD,"[%d] Global numbering of redundant1 array\n",rank);CHKERRQ(ierr); ierr = PetscIntView(nredundant1,ridx1,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = PetscViewerASCIISynchronizedPrintf(PETSC_VIEWER_STDOUT_WORLD,"[%d] Global numbering of local1 vector\n",rank);CHKERRQ(ierr); ierr = VecGetSize(local1,&nlocal);CHKERRQ(ierr); ierr = PetscIntView(nlocal,lidx1,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = PetscViewerASCIISynchronizedPrintf(PETSC_VIEWER_STDOUT_WORLD,"[%d] Global numbering of redundant2 array\n",rank);CHKERRQ(ierr); ierr = PetscIntView(nredundant2,ridx2,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = PetscViewerASCIISynchronizedPrintf(PETSC_VIEWER_STDOUT_WORLD,"[%d] Global numbering of local2 vector\n",rank);CHKERRQ(ierr); ierr = VecGetSize(local2,&nlocal);CHKERRQ(ierr); ierr = PetscIntView(nlocal,lidx2,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = PetscFree(ridx1);CHKERRQ(ierr); ierr = PetscFree(lidx1);CHKERRQ(ierr); ierr = PetscFree(ridx2);CHKERRQ(ierr); ierr = PetscFree(lidx2);CHKERRQ(ierr); ierr = DADestroy(da1);CHKERRQ(ierr); ierr = DADestroy(da2);CHKERRQ(ierr); ierr = VecDestroy(local1);CHKERRQ(ierr); ierr = VecDestroy(local2);CHKERRQ(ierr); ierr = VecDestroy(global);CHKERRQ(ierr); ierr = DMCompositeDestroy(packer);CHKERRQ(ierr); ierr = PetscFree(redundant1);CHKERRQ(ierr); ierr = PetscFree(redundant2);CHKERRQ(ierr); ierr = PetscFinalize();CHKERRQ(ierr); return 0; }
int main(int argc,char **argv) { PetscErrorCode ierr; PetscInt nredundant1 = 5,nredundant2 = 2,i; ISLocalToGlobalMapping *ltog; PetscMPIInt rank,size; DM packer; Vec global,local1,local2,redundant1,redundant2; PF pf; DM da1,da2,dmred1,dmred2; PetscScalar *redundant1a,*redundant2a; PetscViewer sviewer; PetscBool gather_add = PETSC_FALSE; ierr = PetscInitialize(&argc,&argv,(char*)0,help);CHKERRQ(ierr); ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr); ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr); ierr = PetscOptionsGetBool(PETSC_NULL,"-gather_add",&gather_add,PETSC_NULL);CHKERRQ(ierr); ierr = DMCompositeCreate(PETSC_COMM_WORLD,&packer);CHKERRQ(ierr); ierr = DMRedundantCreate(PETSC_COMM_WORLD,0,nredundant1,&dmred1);CHKERRQ(ierr); ierr = DMCreateLocalVector(dmred1,&redundant1);CHKERRQ(ierr); ierr = DMCompositeAddDM(packer,dmred1);CHKERRQ(ierr); ierr = DMDACreate1d(PETSC_COMM_WORLD,DMDA_BOUNDARY_NONE,8,1,1,PETSC_NULL,&da1);CHKERRQ(ierr); ierr = DMCreateLocalVector(da1,&local1);CHKERRQ(ierr); ierr = DMCompositeAddDM(packer,da1);CHKERRQ(ierr); ierr = DMRedundantCreate(PETSC_COMM_WORLD,1%size,nredundant2,&dmred2);CHKERRQ(ierr); ierr = DMCreateLocalVector(dmred2,&redundant2);CHKERRQ(ierr); ierr = DMCompositeAddDM(packer,dmred2);CHKERRQ(ierr); ierr = DMDACreate1d(PETSC_COMM_WORLD,DMDA_BOUNDARY_NONE,6,1,1,PETSC_NULL,&da2);CHKERRQ(ierr); ierr = DMCreateLocalVector(da2,&local2);CHKERRQ(ierr); ierr = DMCompositeAddDM(packer,da2);CHKERRQ(ierr); ierr = DMCreateGlobalVector(packer,&global);CHKERRQ(ierr); ierr = PFCreate(PETSC_COMM_WORLD,1,1,&pf);CHKERRQ(ierr); ierr = PFSetType(pf,PFIDENTITY,PETSC_NULL);CHKERRQ(ierr); ierr = PFApplyVec(pf,PETSC_NULL,global);CHKERRQ(ierr); ierr = PFDestroy(&pf);CHKERRQ(ierr); ierr = VecView(global,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = DMCompositeScatter(packer,global,redundant1,local1,redundant2,local2);CHKERRQ(ierr); ierr = PetscViewerASCIISynchronizedAllow(PETSC_VIEWER_STDOUT_WORLD,PETSC_TRUE);CHKERRQ(ierr); ierr = PetscViewerASCIISynchronizedPrintf(PETSC_VIEWER_STDOUT_WORLD,"[%d] My part of redundant1 vector\n",rank);CHKERRQ(ierr); ierr = PetscViewerGetSingleton(PETSC_VIEWER_STDOUT_WORLD,&sviewer);CHKERRQ(ierr); ierr = VecView(redundant1,sviewer);CHKERRQ(ierr); ierr = PetscViewerRestoreSingleton(PETSC_VIEWER_STDOUT_WORLD,&sviewer);CHKERRQ(ierr); ierr = PetscViewerASCIISynchronizedAllow(PETSC_VIEWER_STDOUT_WORLD,PETSC_TRUE);CHKERRQ(ierr); ierr = PetscViewerASCIISynchronizedPrintf(PETSC_VIEWER_STDOUT_WORLD,"[%d] My part of da1 vector\n",rank);CHKERRQ(ierr); ierr = PetscViewerGetSingleton(PETSC_VIEWER_STDOUT_WORLD,&sviewer);CHKERRQ(ierr); ierr = VecView(local1,sviewer);CHKERRQ(ierr); ierr = PetscViewerRestoreSingleton(PETSC_VIEWER_STDOUT_WORLD,&sviewer);CHKERRQ(ierr); ierr = PetscViewerASCIISynchronizedAllow(PETSC_VIEWER_STDOUT_WORLD,PETSC_TRUE);CHKERRQ(ierr); ierr = PetscViewerASCIISynchronizedPrintf(PETSC_VIEWER_STDOUT_WORLD,"[%d] My part of redundant2 vector\n",rank);CHKERRQ(ierr); ierr = PetscViewerGetSingleton(PETSC_VIEWER_STDOUT_WORLD,&sviewer);CHKERRQ(ierr); ierr = VecView(redundant2,sviewer);CHKERRQ(ierr); ierr = PetscViewerRestoreSingleton(PETSC_VIEWER_STDOUT_WORLD,&sviewer);CHKERRQ(ierr); ierr = PetscViewerASCIISynchronizedAllow(PETSC_VIEWER_STDOUT_WORLD,PETSC_TRUE);CHKERRQ(ierr); ierr = PetscViewerASCIISynchronizedPrintf(PETSC_VIEWER_STDOUT_WORLD,"[%d] My part of da2 vector\n",rank);CHKERRQ(ierr); ierr = PetscViewerGetSingleton(PETSC_VIEWER_STDOUT_WORLD,&sviewer);CHKERRQ(ierr); ierr = VecView(local2,sviewer);CHKERRQ(ierr); ierr = PetscViewerRestoreSingleton(PETSC_VIEWER_STDOUT_WORLD,&sviewer);CHKERRQ(ierr); ierr = VecGetArray(redundant1,&redundant1a);CHKERRQ(ierr); ierr = VecGetArray(redundant2,&redundant2a);CHKERRQ(ierr); for (i=0; i<nredundant1; i++) redundant1a[i] = (rank+2)*i; for (i=0; i<nredundant2; i++) redundant2a[i] = (rank+10)*i; ierr = VecRestoreArray(redundant1,&redundant1a);CHKERRQ(ierr); ierr = VecRestoreArray(redundant2,&redundant2a);CHKERRQ(ierr); ierr = DMCompositeGather(packer,global,gather_add?ADD_VALUES:INSERT_VALUES,redundant1,local1,redundant2,local2);CHKERRQ(ierr); ierr = VecView(global,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); /* get the global numbering for each subvector element */ ierr = DMCompositeGetISLocalToGlobalMappings(packer,<og);CHKERRQ(ierr); ierr = PetscViewerASCIIPrintf(PETSC_VIEWER_STDOUT_WORLD,"Local to global mapping of redundant1 vector\n");CHKERRQ(ierr); ierr = ISLocalToGlobalMappingView(ltog[0],PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = PetscViewerASCIIPrintf(PETSC_VIEWER_STDOUT_WORLD,"Local to global mapping of local1 vector\n");CHKERRQ(ierr); ierr = ISLocalToGlobalMappingView(ltog[1],PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = PetscViewerASCIIPrintf(PETSC_VIEWER_STDOUT_WORLD,"Local to global mapping of redundant2 vector\n");CHKERRQ(ierr); ierr = ISLocalToGlobalMappingView(ltog[2],PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = PetscViewerASCIIPrintf(PETSC_VIEWER_STDOUT_WORLD,"Local to global mapping of local2 vector\n");CHKERRQ(ierr); ierr = ISLocalToGlobalMappingView(ltog[3],PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); for (i=0; i<4; i++) {ierr = ISLocalToGlobalMappingDestroy(<og[i]);CHKERRQ(ierr);} ierr = PetscFree(ltog);CHKERRQ(ierr); ierr = DMDestroy(&da1);CHKERRQ(ierr); ierr = DMDestroy(&dmred1);CHKERRQ(ierr); ierr = DMDestroy(&dmred2);CHKERRQ(ierr); ierr = DMDestroy(&da2);CHKERRQ(ierr); ierr = VecDestroy(&redundant1);CHKERRQ(ierr); ierr = VecDestroy(&redundant2);CHKERRQ(ierr); ierr = VecDestroy(&local1);CHKERRQ(ierr); ierr = VecDestroy(&local2);CHKERRQ(ierr); ierr = VecDestroy(&global);CHKERRQ(ierr); ierr = DMDestroy(&packer);CHKERRQ(ierr); ierr = PetscFinalize(); return 0; }
PetscErrorCode PotCreate(MPI_Comm comm, Pot *p_self) { PetscErrorCode ierr; ierr = PFCreate(comm, 1, 1, p_self); CHKERRQ(ierr); return 0; }