1 static const char help[] = "Test DMCreateInjection() for mapping coordinates in 3D"; 2 3 #include <petscvec.h> 4 #include <petscmat.h> 5 #include <petscdm.h> 6 #include <petscdmda.h> 7 8 PetscErrorCode test1_DAInjection3d(PetscInt mx, PetscInt my, PetscInt mz) 9 { 10 PetscErrorCode ierr; 11 DM dac,daf; 12 PetscViewer vv; 13 Vec ac,af; 14 PetscInt periodicity; 15 DMBoundaryType bx,by,bz; 16 17 PetscFunctionBeginUser; 18 bx = DM_BOUNDARY_NONE; 19 by = DM_BOUNDARY_NONE; 20 bz = DM_BOUNDARY_NONE; 21 22 periodicity = 0; 23 24 ierr = PetscOptionsGetInt(NULL,NULL,"-periodic", &periodicity, NULL);CHKERRQ(ierr); 25 if (periodicity==1) { 26 bx = DM_BOUNDARY_PERIODIC; 27 } else if (periodicity==2) { 28 by = DM_BOUNDARY_PERIODIC; 29 } else if (periodicity==3) { 30 bz = DM_BOUNDARY_PERIODIC; 31 } 32 33 ierr = DMDACreate3d(PETSC_COMM_WORLD, bx,by,bz, DMDA_STENCIL_BOX,mx+1, my+1,mz+1,PETSC_DECIDE, PETSC_DECIDE,PETSC_DECIDE,1, /* 1 dof */ 34 1, /* stencil = 1 */NULL,NULL,NULL,&daf);CHKERRQ(ierr); 35 ierr = DMSetFromOptions(daf);CHKERRQ(ierr); 36 ierr = DMSetUp(daf);CHKERRQ(ierr); 37 38 ierr = DMCoarsen(daf,MPI_COMM_NULL,&dac);CHKERRQ(ierr); 39 40 ierr = DMDASetUniformCoordinates(dac, -1.0,1.0, -1.0,1.0, -1.0,1.0);CHKERRQ(ierr); 41 ierr = DMDASetUniformCoordinates(daf, -1.0,1.0, -1.0,1.0, -1.0,1.0);CHKERRQ(ierr); 42 43 { 44 DM cdaf,cdac; 45 Vec coordsc,coordsf,coordsf2; 46 Mat inject; 47 VecScatter vscat; 48 Mat interp; 49 PetscReal norm; 50 51 ierr = DMGetCoordinateDM(dac,&cdac);CHKERRQ(ierr); 52 ierr = DMGetCoordinateDM(daf,&cdaf);CHKERRQ(ierr); 53 54 ierr = DMGetCoordinates(dac,&coordsc);CHKERRQ(ierr); 55 ierr = DMGetCoordinates(daf,&coordsf);CHKERRQ(ierr); 56 57 ierr = DMCreateInjection(cdac,cdaf,&inject);CHKERRQ(ierr); 58 ierr = MatScatterGetVecScatter(inject,&vscat);CHKERRQ(ierr); 59 ierr = VecScatterBegin(vscat,coordsf,coordsc,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 60 ierr = VecScatterEnd(vscat ,coordsf,coordsc,INSERT_VALUES,SCATTER_FORWARD);CHKERRQ(ierr); 61 ierr = MatDestroy(&inject);CHKERRQ(ierr); 62 63 ierr = DMCreateInterpolation(cdac,cdaf,&interp,NULL);CHKERRQ(ierr); 64 ierr = VecDuplicate(coordsf,&coordsf2);CHKERRQ(ierr); 65 ierr = MatInterpolate(interp,coordsc,coordsf2);CHKERRQ(ierr); 66 ierr = VecAXPY(coordsf2,-1.0,coordsf);CHKERRQ(ierr); 67 ierr = VecNorm(coordsf2,NORM_MAX,&norm);CHKERRQ(ierr); 68 /* The fine coordinates are only reproduced in certain cases */ 69 if (!bx && !by && !bz && norm > PETSC_SQRT_MACHINE_EPSILON) {ierr = PetscPrintf(PETSC_COMM_WORLD,"Norm %g\n",(double)norm);CHKERRQ(ierr);} 70 ierr = VecDestroy(&coordsf2);CHKERRQ(ierr); 71 ierr = MatDestroy(&interp);CHKERRQ(ierr); 72 } 73 74 if (0) { 75 ierr = DMCreateGlobalVector(dac,&ac);CHKERRQ(ierr); 76 ierr = VecZeroEntries(ac);CHKERRQ(ierr); 77 78 ierr = DMCreateGlobalVector(daf,&af);CHKERRQ(ierr); 79 ierr = VecZeroEntries(af);CHKERRQ(ierr); 80 81 ierr = PetscViewerASCIIOpen(PETSC_COMM_WORLD, "dac_7.vtu", &vv);CHKERRQ(ierr); 82 ierr = VecView(ac, vv);CHKERRQ(ierr); 83 ierr = PetscViewerDestroy(&vv);CHKERRQ(ierr); 84 85 ierr = PetscViewerASCIIOpen(PETSC_COMM_WORLD, "daf_7.vtu", &vv);CHKERRQ(ierr); 86 ierr = VecView(af, vv);CHKERRQ(ierr); 87 ierr = PetscViewerDestroy(&vv);CHKERRQ(ierr); 88 ierr = VecDestroy(&ac);CHKERRQ(ierr); 89 ierr = VecDestroy(&af);CHKERRQ(ierr); 90 } 91 ierr = DMDestroy(&dac);CHKERRQ(ierr); 92 ierr = DMDestroy(&daf);CHKERRQ(ierr); 93 PetscFunctionReturn(0); 94 } 95 96 int main(int argc,char **argv) 97 { 98 PetscErrorCode ierr; 99 PetscInt mx,my,mz; 100 101 ierr = PetscInitialize(&argc,&argv,0,help);if (ierr) return ierr; 102 mx = 2; 103 my = 2; 104 mz = 2; 105 ierr = PetscOptionsGetInt(NULL,NULL,"-mx", &mx, 0);CHKERRQ(ierr); 106 ierr = PetscOptionsGetInt(NULL,NULL,"-my", &my, 0);CHKERRQ(ierr); 107 ierr = PetscOptionsGetInt(NULL,NULL,"-mz", &mz, 0);CHKERRQ(ierr); 108 ierr = test1_DAInjection3d(mx,my,mz);CHKERRQ(ierr); 109 ierr = PetscFinalize(); 110 return ierr; 111 } 112 113 /*TEST 114 115 test: 116 nsize: 5 117 args: -mx 30 -my 30 -mz 30 -periodic 0 -da_processors_x 5 118 119 test: 120 suffix: 2 121 nsize: 5 122 args: -mx 29 -my 30 -mz 30 -periodic 1 -da_processors_x 5 123 124 test: 125 suffix: 3 126 nsize: 5 127 args: -mx 30 -my 29 -mz 30 -periodic 2 -da_processors_x 5 128 129 test: 130 suffix: 4 131 nsize: 5 132 args: -mx 30 -my 30 -mz 29 -periodic 3 -da_processors_x 5 133 134 test: 135 suffix: 5 136 nsize: 5 137 args: -mx 30 -my 30 -mz 30 -periodic 0 -da_processors_y 5 138 139 test: 140 suffix: 6 141 nsize: 5 142 args: -mx 29 -my 30 -mz 30 -periodic 1 -da_processors_y 5 143 144 test: 145 suffix: 7 146 nsize: 5 147 args: -mx 30 -my 29 -mz 30 -periodic 2 -da_processors_y 5 148 149 test: 150 suffix: 8 151 nsize: 5 152 args: -mx 30 -my 30 -mz 29 -periodic 3 -da_processors_y 5 153 154 test: 155 suffix: 9 156 nsize: 5 157 args: -mx 30 -my 30 -mz 30 -periodic 0 -da_processors_z 5 158 159 test: 160 suffix: 10 161 nsize: 5 162 args: -mx 29 -my 30 -mz 30 -periodic 1 -da_processors_z 5 163 164 test: 165 suffix: 11 166 nsize: 5 167 args: -mx 30 -my 29 -mz 30 -periodic 2 -da_processors_z 5 168 169 test: 170 suffix: 12 171 nsize: 5 172 args: -mx 30 -my 30 -mz 29 -periodic 3 -da_processors_z 5 173 174 test: 175 suffix: 13 176 nsize: 5 177 args: -mx 30 -my 30 -mz 30 -periodic 0 178 179 test: 180 suffix: 14 181 nsize: 5 182 args: -mx 29 -my 30 -mz 30 -periodic 1 183 184 test: 185 suffix: 15 186 nsize: 5 187 args: -mx 30 -my 29 -mz 30 -periodic 2 188 189 test: 190 suffix: 16 191 nsize: 5 192 args: -mx 30 -my 30 -mz 29 -periodic 3 193 194 TEST*/ 195