1 /* Routines to visualize DMDAs and fields through GLVis */ 2 3 #include <petsc/private/dmdaimpl.h> 4 #include <petsc/private/glvisviewerimpl.h> 5 6 typedef struct { 7 Vec xlocal; 8 } DMDAGLVisViewerCtx; 9 10 static PetscErrorCode DMDADestroyGLVisViewerCtx_Private(void *vctx) 11 { 12 DMDAGLVisViewerCtx *ctx = (DMDAGLVisViewerCtx*)vctx; 13 PetscErrorCode ierr; 14 15 PetscFunctionBegin; 16 ierr = VecDestroy(&ctx->xlocal);CHKERRQ(ierr); 17 ierr = PetscFree(vctx); 18 PetscFunctionReturn(0); 19 } 20 21 /* all but the last proc per dimension claim the ghosted node */ 22 static PetscErrorCode DMDAGetNumElementsGhosted(DM da, PetscInt *nex, PetscInt *ney, PetscInt *nez) 23 { 24 PetscInt M,N,P,sx,sy,sz,ien,jen,ken; 25 PetscErrorCode ierr; 26 27 PetscFunctionBegin; 28 ierr = DMDAGetInfo(da,NULL,&M,&N,&P,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL);CHKERRQ(ierr); 29 ierr = DMDAGetCorners(da,&sx,&sy,&sz,&ien,&jen,&ken);CHKERRQ(ierr); 30 if (sx+ien == M) ien--; 31 if (sy+jen == N) jen--; 32 if (sz+ken == P) ken--; 33 if (nex) *nex = ien; 34 if (ney) *ney = jen; 35 if (nez) *nez = ken; 36 PetscFunctionReturn(0); 37 } 38 39 /* inherits number of vertices from DMDAGetNumElementsGhosted */ 40 static PetscErrorCode DMDAGetNumVerticesGhosted(DM da, PetscInt *nvx, PetscInt *nvy, PetscInt *nvz) 41 { 42 PetscInt ien,jen,ken,dim; 43 PetscErrorCode ierr; 44 45 PetscFunctionBegin; 46 ierr = DMGetDimension(da,&dim);CHKERRQ(ierr); 47 ierr = DMDAGetNumElementsGhosted(da,&ien,&jen,&ken);CHKERRQ(ierr); 48 ien = ien+1; 49 jen = dim > 1 ? jen+1 : 1; 50 ken = dim > 2 ? ken+1 : 1; 51 if (nvx) *nvx = ien; 52 if (nvy) *nvy = jen; 53 if (nvz) *nvz = ken; 54 PetscFunctionReturn(0); 55 } 56 57 static PetscErrorCode DMDASampleGLVisFields_Private(PetscObject oX, PetscInt nf, PetscObject oXf[], void *vctx) 58 { 59 DM da; 60 DMDAGLVisViewerCtx *ctx = (DMDAGLVisViewerCtx*)vctx; 61 const PetscScalar *array; 62 PetscScalar **arrayf; 63 PetscInt i,f,ii,ien,jen,ken,ie,je,ke,bs,*bss; 64 PetscInt sx,sy,sz,gsx,gsy,gsz,ist,jst,kst,gm,gn,gp; 65 PetscErrorCode ierr; 66 67 PetscFunctionBegin; 68 ierr = VecGetDM(ctx->xlocal,&da);CHKERRQ(ierr); 69 if (!da) SETERRQ(PetscObjectComm(oX),PETSC_ERR_ARG_WRONG,"Vector not generated from a DMDA"); 70 ierr = VecGetBlockSize(ctx->xlocal,&bs);CHKERRQ(ierr); 71 ierr = DMGlobalToLocalBegin(da,(Vec)oX,INSERT_VALUES,ctx->xlocal);CHKERRQ(ierr); 72 ierr = DMGlobalToLocalEnd(da,(Vec)oX,INSERT_VALUES,ctx->xlocal);CHKERRQ(ierr); 73 ierr = DMDAGetNumVerticesGhosted(da,&ien,&jen,&ken);CHKERRQ(ierr); 74 ierr = DMDAGetGhostCorners(da,&gsx,&gsy,&gsz,&gm,&gn,&gp);CHKERRQ(ierr); 75 ierr = DMDAGetCorners(da,&sx,&sy,&sz,NULL,NULL,NULL);CHKERRQ(ierr); 76 kst = gsz != sz ? 1 : 0; 77 jst = gsy != sy ? 1 : 0; 78 ist = gsx != sx ? 1 : 0; 79 ierr = PetscMalloc2(nf,&arrayf,nf,&bss);CHKERRQ(ierr); 80 ierr = VecGetArrayRead(ctx->xlocal,&array);CHKERRQ(ierr); 81 for (f=0;f<nf;f++) { 82 ierr = VecGetBlockSize((Vec)oXf[f],&bss[f]);CHKERRQ(ierr); 83 ierr = VecGetArray((Vec)oXf[f],&arrayf[f]);CHKERRQ(ierr); 84 } 85 for (ke = kst, ii = 0; ke < kst + ken; ke++) { 86 for (je = jst; je < jst + jen; je++) { 87 for (ie = ist; ie < ist + ien; ie++) { 88 PetscInt cf,b; 89 i = ke * gm * gn + je * gm + ie; 90 for (f=0,cf=0;f<nf;f++) 91 for (b=0;b<bss[f];b++) 92 arrayf[f][bss[f]*ii+b] = array[i*bs+cf++]; 93 ii++; 94 } 95 } 96 } 97 for (f=0;f<nf;f++) { ierr = VecRestoreArray((Vec)oXf[f],&arrayf[f]);CHKERRQ(ierr); } 98 ierr = VecRestoreArrayRead(ctx->xlocal,&array);CHKERRQ(ierr); 99 ierr = PetscFree2(arrayf,bss);CHKERRQ(ierr); 100 PetscFunctionReturn(0); 101 } 102 103 PETSC_INTERN PetscErrorCode DMSetUpGLVisViewer_DMDA(PetscObject oda, PetscViewer viewer) 104 { 105 DM da = (DM)oda,daview,dacoord; 106 Vec xcoor,xcoorl,xlocal; 107 DMDAGLVisViewerCtx *ctx; 108 const char **dafieldname; 109 char **fec_type,**fieldname,fec[64]; 110 const PetscInt *lx,*ly,*lz; 111 PetscInt *nlocal,*bss; 112 PetscInt dim,M,N,P,m,n,p,dof,s,i,nf; 113 PetscBool bsset; 114 PetscErrorCode ierr; 115 116 PetscFunctionBegin; 117 ierr = PetscObjectQuery(oda,"GLVisGraphicsCoordsGhosted",(PetscObject*)&xcoorl);CHKERRQ(ierr); 118 if (xcoorl) PetscFunctionReturn(0); 119 /* Create a properly ghosted DMDA to visualize the mesh and the fields associated with */ 120 ierr = DMDAGetInfo(da,&dim,&M,&N,&P,&m,&n,&p,&dof,&s,NULL,NULL,NULL,NULL);CHKERRQ(ierr); 121 ierr = DMDAGetOwnershipRanges(da,&lx,&ly,&lz);CHKERRQ(ierr); 122 ierr = DMGetCoordinates(da,&xcoor);CHKERRQ(ierr); 123 ierr = PetscInfo(da,"Creating auxilary DMDA for managing GLVis graphics\n");CHKERRQ(ierr); 124 switch (dim) { 125 case 1: 126 ierr = DMDACreate1d(PetscObjectComm((PetscObject)da),DM_BOUNDARY_NONE,M,dof,1,lx,&daview);CHKERRQ(ierr); 127 ierr = DMDACreate1d(PetscObjectComm((PetscObject)da),DM_BOUNDARY_NONE,M,1,1,lx,&dacoord);CHKERRQ(ierr); 128 ierr = PetscStrcpy(fec,"FiniteElementCollection: H1_1D_P1");CHKERRQ(ierr); 129 break; 130 case 2: 131 ierr = DMDACreate2d(PetscObjectComm((PetscObject)da),DM_BOUNDARY_NONE,DM_BOUNDARY_NONE,DMDA_STENCIL_BOX,M,N,m,n,dof,1,lx,ly,&daview);CHKERRQ(ierr); 132 ierr = DMDACreate2d(PetscObjectComm((PetscObject)da),DM_BOUNDARY_NONE,DM_BOUNDARY_NONE,DMDA_STENCIL_BOX,M,N,m,n,2,1,lx,ly,&dacoord);CHKERRQ(ierr); 133 ierr = PetscStrcpy(fec,"FiniteElementCollection: H1_2D_P1");CHKERRQ(ierr); 134 break; 135 case 3: 136 ierr = DMDACreate3d(PetscObjectComm((PetscObject)da),DM_BOUNDARY_NONE,DM_BOUNDARY_NONE,DM_BOUNDARY_NONE,DMDA_STENCIL_BOX,M,N,P,m,n,p,dof,1,lx,ly,lz,&daview);CHKERRQ(ierr); 137 ierr = DMDACreate3d(PetscObjectComm((PetscObject)da),DM_BOUNDARY_NONE,DM_BOUNDARY_NONE,DM_BOUNDARY_NONE,DMDA_STENCIL_BOX,M,N,P,m,n,p,3,1,lx,ly,lz,&dacoord);CHKERRQ(ierr); 138 ierr = PetscStrcpy(fec,"FiniteElementCollection: H1_3D_P1");CHKERRQ(ierr); 139 break; 140 default: 141 SETERRQ1(PetscObjectComm((PetscObject)da),PETSC_ERR_SUP,"Unsupported dimension %D",dim); 142 break; 143 } 144 ierr = DMSetUp(daview);CHKERRQ(ierr); 145 ierr = DMSetUp(dacoord);CHKERRQ(ierr); 146 if (!xcoor) { 147 ierr = DMDASetUniformCoordinates(daview,0.0,1.0,0.0,1.0,0.0,1.0);CHKERRQ(ierr); 148 ierr = DMGetCoordinates(daview,&xcoor);CHKERRQ(ierr); 149 } 150 ierr = DMCreateLocalVector(daview,&xlocal);CHKERRQ(ierr); 151 ierr = DMCreateLocalVector(dacoord,&xcoorl);CHKERRQ(ierr); 152 ierr = DMGlobalToLocalBegin(dacoord,xcoor,INSERT_VALUES,xcoorl);CHKERRQ(ierr); 153 ierr = DMGlobalToLocalEnd(dacoord,xcoor,INSERT_VALUES,xcoorl);CHKERRQ(ierr); 154 155 /* xcoorl is composed with the original DMDA, ghosted coordinate DMDA is only available through this vector */ 156 ierr = PetscObjectCompose(oda,"GLVisGraphicsCoordsGhosted",(PetscObject)xcoorl);CHKERRQ(ierr); 157 ierr = PetscObjectDereference((PetscObject)xcoorl);CHKERRQ(ierr); 158 159 /* customize the viewer */ 160 ierr = DMDAGetFieldNames(da,(const char * const **)&dafieldname);CHKERRQ(ierr); 161 ierr = DMDAGetNumVerticesGhosted(daview,&M,&N,&P);CHKERRQ(ierr); 162 ierr = PetscMalloc4(dof,&fec_type,dof,&nlocal,dof,&bss,dof,&fieldname);CHKERRQ(ierr); 163 for (i=0;i<dof;i++) bss[i] = 1; 164 nf = dof; 165 166 ierr = PetscOptionsBegin(PetscObjectComm(oda),oda->prefix,"GLVis PetscViewer DMDA Options","PetscViewer");CHKERRQ(ierr); 167 ierr = PetscOptionsIntArray("-viewer_glvis_dm_da_bs","Block sizes for subfields; enable vector representation",NULL,bss,&nf,&bsset);CHKERRQ(ierr); 168 ierr = PetscOptionsEnd();CHKERRQ(ierr); 169 if (bsset) { 170 PetscInt t; 171 for (i=0,t=0;i<nf;i++) t += bss[i]; 172 if (t != dof) SETERRQ2(PetscObjectComm(oda),PETSC_ERR_USER,"Sum of block sizes %D should equal %D",t,dof); 173 } else nf = dof; 174 175 for (i=0,s=0;i<nf;i++) { 176 ierr = PetscStrallocpy(fec,&fec_type[i]);CHKERRQ(ierr); 177 if (bss[i] == 1) { 178 ierr = PetscStrallocpy(dafieldname[s],&fieldname[i]);CHKERRQ(ierr); 179 } else { 180 PetscInt b; 181 size_t tlen = 9; /* "Vector-" + end */ 182 for (b=0;b<bss[i];b++) { 183 size_t len; 184 ierr = PetscStrlen(dafieldname[s+b],&len);CHKERRQ(ierr); 185 tlen += len + 1; /* field + "-" */ 186 } 187 ierr = PetscMalloc1(tlen,&fieldname[i]);CHKERRQ(ierr); 188 ierr = PetscStrcpy(fieldname[i],"Vector-");CHKERRQ(ierr); 189 for (b=0;b<bss[i]-1;b++) { 190 ierr = PetscStrcat(fieldname[i],dafieldname[s+b]);CHKERRQ(ierr); 191 ierr = PetscStrcat(fieldname[i],"-");CHKERRQ(ierr); 192 } 193 ierr = PetscStrcat(fieldname[i],dafieldname[s+b]);CHKERRQ(ierr); 194 } 195 nlocal[i] = M*N*P*bss[i]; 196 s += bss[i]; 197 } 198 199 /* the viewer context takes ownership of xlocal (and the the properly ghosted DMDA associated with it) */ 200 ierr = PetscNew(&ctx);CHKERRQ(ierr); 201 ctx->xlocal = xlocal; 202 203 ierr = PetscViewerGLVisSetFields(viewer,nf,(const char**)fieldname,(const char**)fec_type,nlocal,bss,DMDASampleGLVisFields_Private,ctx,DMDADestroyGLVisViewerCtx_Private);CHKERRQ(ierr); 204 for (i=0;i<nf;i++) { 205 ierr = PetscFree(fec_type[i]);CHKERRQ(ierr); 206 ierr = PetscFree(fieldname[i]);CHKERRQ(ierr); 207 } 208 ierr = PetscFree4(fec_type,nlocal,bss,fieldname);CHKERRQ(ierr); 209 ierr = DMDestroy(&dacoord);CHKERRQ(ierr); 210 ierr = DMDestroy(&daview);CHKERRQ(ierr); 211 PetscFunctionReturn(0); 212 } 213 214 static PetscErrorCode DMDAView_GLVis_ASCII(DM dm, PetscViewer viewer) 215 { 216 DM da; 217 Vec xcoorl; 218 PetscMPIInt commsize; 219 const PetscScalar *array; 220 PetscContainer glvis_container; 221 PetscInt dim,sdim,i,vid[8],mid,cid; 222 PetscInt sx,sy,sz,ie,je,ke,ien,jen,ken; 223 PetscInt gsx,gsy,gsz,gm,gn,gp,kst,jst,ist; 224 PetscBool enabled = PETSC_TRUE, isascii; 225 PetscErrorCode ierr; 226 227 PetscFunctionBegin; 228 PetscValidHeaderSpecific(dm,DM_CLASSID,1); 229 PetscValidHeaderSpecific(viewer,PETSC_VIEWER_CLASSID,2); 230 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERASCII,&isascii);CHKERRQ(ierr); 231 if (!isascii) SETERRQ(PetscObjectComm((PetscObject)viewer),PETSC_ERR_SUP,"Viewer must be of type VIEWERASCII"); 232 ierr = MPI_Comm_size(PetscObjectComm((PetscObject)viewer),&commsize);CHKERRQ(ierr); 233 if (commsize > 1) SETERRQ(PetscObjectComm((PetscObject)viewer),PETSC_ERR_SUP,"Use single sequential viewers for parallel visualization"); 234 ierr = DMGetDimension(dm,&dim);CHKERRQ(ierr); 235 236 /* get container: determines if a process visualizes is portion of the data or not */ 237 ierr = PetscObjectQuery((PetscObject)viewer,"_glvis_info_container",(PetscObject*)&glvis_container);CHKERRQ(ierr); 238 if (!glvis_container) SETERRQ(PetscObjectComm((PetscObject)dm),PETSC_ERR_PLIB,"Missing GLVis container"); 239 { 240 PetscViewerGLVisInfo glvis_info; 241 ierr = PetscContainerGetPointer(glvis_container,(void**)&glvis_info);CHKERRQ(ierr); 242 enabled = glvis_info->enabled; 243 } 244 ierr = PetscObjectQuery((PetscObject)dm,"GLVisGraphicsCoordsGhosted",(PetscObject*)&xcoorl);CHKERRQ(ierr); 245 if (!xcoorl) SETERRQ(PetscObjectComm((PetscObject)dm),PETSC_ERR_PLIB,"Missing GLVis ghosted coords"); 246 ierr = VecGetDM(xcoorl,&da);CHKERRQ(ierr); 247 if (!da) SETERRQ(PetscObjectComm((PetscObject)dm),PETSC_ERR_PLIB,"Missing GLVis ghosted DMDA"); 248 ierr = DMGetCoordinateDim(da,&sdim);CHKERRQ(ierr); 249 250 ierr = PetscViewerASCIIPrintf(viewer,"MFEM mesh v1.1\n");CHKERRQ(ierr); 251 ierr = PetscViewerASCIIPrintf(viewer,"\ndimension\n");CHKERRQ(ierr); 252 ierr = PetscViewerASCIIPrintf(viewer,"%D\n",dim);CHKERRQ(ierr); 253 254 if (!enabled) { 255 ierr = PetscViewerASCIIPrintf(viewer,"\nelements\n");CHKERRQ(ierr); 256 ierr = PetscViewerASCIIPrintf(viewer,"%D\n",0);CHKERRQ(ierr); 257 ierr = PetscViewerASCIIPrintf(viewer,"\nboundary\n");CHKERRQ(ierr); 258 ierr = PetscViewerASCIIPrintf(viewer,"%D\n",0);CHKERRQ(ierr); 259 ierr = PetscViewerASCIIPrintf(viewer,"\nvertices\n");CHKERRQ(ierr); 260 ierr = PetscViewerASCIIPrintf(viewer,"%D\n",0);CHKERRQ(ierr); 261 ierr = PetscViewerASCIIPrintf(viewer,"%D\n",sdim);CHKERRQ(ierr); 262 PetscFunctionReturn(0); 263 } 264 265 ierr = DMDAGetNumElementsGhosted(da,&ien,&jen,&ken);CHKERRQ(ierr); 266 i = ien; 267 if (dim > 1) i *= jen; 268 if (dim > 2) i *= ken; 269 ierr = PetscViewerASCIIPrintf(viewer,"\nelements\n");CHKERRQ(ierr); 270 ierr = PetscViewerASCIIPrintf(viewer,"%D\n",i);CHKERRQ(ierr); 271 switch (dim) { 272 case 1: 273 for (ie = 0; ie < ien; ie++) { 274 vid[0] = ie; 275 vid[1] = ie+1; 276 mid = 1; /* material id */ 277 cid = 1; /* segment */ 278 ierr = PetscViewerASCIIPrintf(viewer,"%D %D %D %D\n",mid,cid,vid[0],vid[1]);CHKERRQ(ierr); 279 } 280 break; 281 case 2: 282 for (je = 0; je < jen; je++) { 283 for (ie = 0; ie < ien; ie++) { 284 vid[0] = je*(ien+1) + ie; 285 vid[1] = je*(ien+1) + ie+1; 286 vid[2] = (je+1)*(ien+1) + ie+1; 287 vid[3] = (je+1)*(ien+1) + ie; 288 mid = 1; /* material id */ 289 cid = 3; /* quad */ 290 ierr = PetscViewerASCIIPrintf(viewer,"%D %D %D %D %D %D\n",mid,cid,vid[0],vid[1],vid[2],vid[3]);CHKERRQ(ierr); 291 } 292 } 293 break; 294 case 3: 295 for (ke = 0; ke < ken; ke++) { 296 for (je = 0; je < jen; je++) { 297 for (ie = 0; ie < ien; ie++) { 298 vid[0] = ke*(jen+1)*(ien+1) + je*(ien+1) + ie; 299 vid[1] = ke*(jen+1)*(ien+1) + je*(ien+1) + ie+1; 300 vid[2] = ke*(jen+1)*(ien+1) + (je+1)*(ien+1) + ie+1; 301 vid[3] = ke*(jen+1)*(ien+1) + (je+1)*(ien+1) + ie; 302 vid[4] = (ke+1)*(jen+1)*(ien+1) + je*(ien+1) + ie; 303 vid[5] = (ke+1)*(jen+1)*(ien+1) + je*(ien+1) + ie+1; 304 vid[6] = (ke+1)*(jen+1)*(ien+1) + (je+1)*(ien+1) + ie+1; 305 vid[7] = (ke+1)*(jen+1)*(ien+1) + (je+1)*(ien+1) + ie; 306 mid = 1; /* material id */ 307 cid = 5; /* hex */ 308 ierr = PetscViewerASCIIPrintf(viewer,"%D %D %D %D %D %D %D %D %D %D\n",mid,cid,vid[0],vid[1],vid[2],vid[3],vid[4],vid[5],vid[6],vid[7]);CHKERRQ(ierr); 309 } 310 } 311 } 312 break; 313 default: 314 SETERRQ1(PetscObjectComm((PetscObject)da),PETSC_ERR_SUP,"Unsupported dimension %D",dim); 315 break; 316 } 317 ierr = PetscViewerASCIIPrintf(viewer,"\nboundary\n");CHKERRQ(ierr); 318 ierr = PetscViewerASCIIPrintf(viewer,"%D\n",0);CHKERRQ(ierr); 319 320 ierr = DMDAGetNumVerticesGhosted(da,&ien,&jen,&ken);CHKERRQ(ierr); 321 ierr = DMDAGetCorners(da,&sx,&sy,&sz,NULL,NULL,NULL);CHKERRQ(ierr); 322 ierr = DMDAGetGhostCorners(da,&gsx,&gsy,&gsz,&gm,&gn,&gp);CHKERRQ(ierr); 323 kst = gsz != sz ? 1 : 0; 324 jst = gsy != sy ? 1 : 0; 325 ist = gsx != sx ? 1 : 0; 326 ierr = PetscViewerASCIIPrintf(viewer,"\nvertices\n");CHKERRQ(ierr); 327 ierr = PetscViewerASCIIPrintf(viewer,"%D\n",ien*jen*ken);CHKERRQ(ierr); 328 ierr = PetscViewerASCIIPrintf(viewer,"%D\n",sdim);CHKERRQ(ierr); 329 ierr = VecGetArrayRead(xcoorl,&array);CHKERRQ(ierr); 330 for (ke = kst; ke < kst + ken; ke++) { 331 for (je = jst; je < jst + jen; je++) { 332 for (ie = ist; ie < ist + ien; ie++) { 333 PetscInt d; 334 335 i = ke * gm * gn + je * gm + ie; 336 for (d=0;d<sdim-1;d++) { 337 ierr = PetscViewerASCIIPrintf(viewer,"%g ",PetscRealPart(array[sdim*i+d]));CHKERRQ(ierr); 338 } 339 ierr = PetscViewerASCIIPrintf(viewer,"%g\n",PetscRealPart(array[sdim*i+d]));CHKERRQ(ierr); 340 } 341 } 342 } 343 ierr = VecRestoreArrayRead(xcoorl,&array);CHKERRQ(ierr); 344 PetscFunctionReturn(0); 345 } 346 347 /* dispatching, prints through the socket by prepending the mesh keyword to the usual ASCII dump: duplicated code as in plexglvis.c, should be merged together */ 348 PETSC_INTERN PetscErrorCode DMView_DA_GLVis(DM dm, PetscViewer viewer) 349 { 350 PetscErrorCode ierr; 351 PetscBool isglvis,isascii; 352 353 PetscFunctionBegin; 354 PetscValidHeaderSpecific(dm,DM_CLASSID,1); 355 PetscValidHeaderSpecific(viewer,PETSC_VIEWER_CLASSID,1); 356 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERGLVIS,&isglvis);CHKERRQ(ierr); 357 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERASCII,&isascii);CHKERRQ(ierr); 358 if (!isglvis && !isascii) SETERRQ(PetscObjectComm((PetscObject)viewer),PETSC_ERR_SUP,"Viewer must be of type VIEWERGLVIS or VIEWERASCII"); 359 if (isglvis) { 360 PetscViewer view; 361 PetscViewerGLVisType type; 362 363 ierr = PetscViewerGLVisGetType_Private(viewer,&type);CHKERRQ(ierr); 364 ierr = PetscViewerGLVisGetDMWindow_Private(viewer,&view);CHKERRQ(ierr); 365 if (view) { /* in the socket case, it may happen that the connection failed */ 366 if (type == PETSC_VIEWER_GLVIS_SOCKET) { 367 PetscMPIInt size,rank; 368 ierr = MPI_Comm_size(PetscObjectComm((PetscObject)dm),&size);CHKERRQ(ierr); 369 ierr = MPI_Comm_rank(PetscObjectComm((PetscObject)dm),&rank);CHKERRQ(ierr); 370 ierr = PetscViewerASCIIPrintf(view,"parallel %D %D\nmesh\n",size,rank);CHKERRQ(ierr); 371 } 372 ierr = DMDAView_GLVis_ASCII(dm,view);CHKERRQ(ierr); 373 ierr = PetscViewerFlush(view);CHKERRQ(ierr); 374 if (type == PETSC_VIEWER_GLVIS_SOCKET) { 375 PetscInt dim; 376 const char* name; 377 378 ierr = PetscObjectGetName((PetscObject)dm,&name);CHKERRQ(ierr); 379 ierr = DMGetDimension(dm,&dim);CHKERRQ(ierr); 380 ierr = PetscViewerGLVisInitWindow_Private(view,PETSC_TRUE,dim,name);CHKERRQ(ierr); 381 ierr = PetscBarrier((PetscObject)dm);CHKERRQ(ierr); 382 } 383 } 384 } else { 385 ierr = DMDAView_GLVis_ASCII(dm,viewer);CHKERRQ(ierr); 386 } 387 PetscFunctionReturn(0); 388 } 389