1 2 /* 3 Plots vectors obtained with DMDACreate2d() 4 */ 5 6 #include <petsc/private/dmdaimpl.h> /*I "petscdmda.h" I*/ 7 #include <petsc/private/glvisvecimpl.h> 8 #include <petsc/private/viewerhdf5impl.h> 9 #include <petscdraw.h> 10 11 /* 12 The data that is passed into the graphics callback 13 */ 14 typedef struct { 15 PetscMPIInt rank; 16 PetscInt m,n,dof,k; 17 PetscReal xmin,xmax,ymin,ymax,min,max; 18 const PetscScalar *xy,*v; 19 PetscBool showaxis,showgrid; 20 const char *name0,*name1; 21 } ZoomCtx; 22 23 /* 24 This does the drawing for one particular field 25 in one particular set of coordinates. It is a callback 26 called from PetscDrawZoom() 27 */ 28 PetscErrorCode VecView_MPI_Draw_DA2d_Zoom(PetscDraw draw,void *ctx) 29 { 30 ZoomCtx *zctx = (ZoomCtx*)ctx; 31 PetscErrorCode ierr; 32 PetscInt m,n,i,j,k,dof,id,c1,c2,c3,c4; 33 PetscReal min,max,x1,x2,x3,x4,y_1,y2,y3,y4; 34 const PetscScalar *xy,*v; 35 36 PetscFunctionBegin; 37 m = zctx->m; 38 n = zctx->n; 39 dof = zctx->dof; 40 k = zctx->k; 41 xy = zctx->xy; 42 v = zctx->v; 43 min = zctx->min; 44 max = zctx->max; 45 46 /* PetscDraw the contour plot patch */ 47 ierr = PetscDrawCollectiveBegin(draw);CHKERRQ(ierr); 48 for (j=0; j<n-1; j++) { 49 for (i=0; i<m-1; i++) { 50 id = i+j*m; 51 x1 = PetscRealPart(xy[2*id]); 52 y_1 = PetscRealPart(xy[2*id+1]); 53 c1 = PetscDrawRealToColor(PetscRealPart(v[k+dof*id]),min,max); 54 55 id = i+j*m+1; 56 x2 = PetscRealPart(xy[2*id]); 57 y2 = PetscRealPart(xy[2*id+1]); 58 c2 = PetscDrawRealToColor(PetscRealPart(v[k+dof*id]),min,max); 59 60 id = i+j*m+1+m; 61 x3 = PetscRealPart(xy[2*id]); 62 y3 = PetscRealPart(xy[2*id+1]); 63 c3 = PetscDrawRealToColor(PetscRealPart(v[k+dof*id]),min,max); 64 65 id = i+j*m+m; 66 x4 = PetscRealPart(xy[2*id]); 67 y4 = PetscRealPart(xy[2*id+1]); 68 c4 = PetscDrawRealToColor(PetscRealPart(v[k+dof*id]),min,max); 69 70 ierr = PetscDrawTriangle(draw,x1,y_1,x2,y2,x3,y3,c1,c2,c3);CHKERRQ(ierr); 71 ierr = PetscDrawTriangle(draw,x1,y_1,x3,y3,x4,y4,c1,c3,c4);CHKERRQ(ierr); 72 if (zctx->showgrid) { 73 ierr = PetscDrawLine(draw,x1,y_1,x2,y2,PETSC_DRAW_BLACK);CHKERRQ(ierr); 74 ierr = PetscDrawLine(draw,x2,y2,x3,y3,PETSC_DRAW_BLACK);CHKERRQ(ierr); 75 ierr = PetscDrawLine(draw,x3,y3,x4,y4,PETSC_DRAW_BLACK);CHKERRQ(ierr); 76 ierr = PetscDrawLine(draw,x4,y4,x1,y_1,PETSC_DRAW_BLACK);CHKERRQ(ierr); 77 } 78 } 79 } 80 if (zctx->showaxis && !zctx->rank) { 81 if (zctx->name0 || zctx->name1) { 82 PetscReal xl,yl,xr,yr,x,y; 83 ierr = PetscDrawGetCoordinates(draw,&xl,&yl,&xr,&yr);CHKERRQ(ierr); 84 x = xl + .30*(xr - xl); 85 xl = xl + .01*(xr - xl); 86 y = yr - .30*(yr - yl); 87 yl = yl + .01*(yr - yl); 88 if (zctx->name0) {ierr = PetscDrawString(draw,x,yl,PETSC_DRAW_BLACK,zctx->name0);CHKERRQ(ierr);} 89 if (zctx->name1) {ierr = PetscDrawStringVertical(draw,xl,y,PETSC_DRAW_BLACK,zctx->name1);CHKERRQ(ierr);} 90 } 91 /* 92 Ideally we would use the PetscDrawAxis object to manage displaying the coordinate limits 93 but that may require some refactoring. 94 */ 95 { 96 double xmin = (double)zctx->xmin, ymin = (double)zctx->ymin; 97 double xmax = (double)zctx->xmax, ymax = (double)zctx->ymax; 98 char value[16]; size_t len; PetscReal w; 99 ierr = PetscSNPrintf(value,16,"%0.2e",xmin);CHKERRQ(ierr); 100 ierr = PetscDrawString(draw,xmin,ymin - .05*(ymax - ymin),PETSC_DRAW_BLACK,value);CHKERRQ(ierr); 101 ierr = PetscSNPrintf(value,16,"%0.2e",xmax);CHKERRQ(ierr); 102 ierr = PetscStrlen(value,&len);CHKERRQ(ierr); 103 ierr = PetscDrawStringGetSize(draw,&w,NULL);CHKERRQ(ierr); 104 ierr = PetscDrawString(draw,xmax - len*w,ymin - .05*(ymax - ymin),PETSC_DRAW_BLACK,value);CHKERRQ(ierr); 105 ierr = PetscSNPrintf(value,16,"%0.2e",ymin);CHKERRQ(ierr); 106 ierr = PetscDrawString(draw,xmin - .05*(xmax - xmin),ymin,PETSC_DRAW_BLACK,value);CHKERRQ(ierr); 107 ierr = PetscSNPrintf(value,16,"%0.2e",ymax);CHKERRQ(ierr); 108 ierr = PetscDrawString(draw,xmin - .05*(xmax - xmin),ymax,PETSC_DRAW_BLACK,value);CHKERRQ(ierr); 109 } 110 } 111 ierr = PetscDrawCollectiveEnd(draw);CHKERRQ(ierr); 112 PetscFunctionReturn(0); 113 } 114 115 PetscErrorCode VecView_MPI_Draw_DA2d(Vec xin,PetscViewer viewer) 116 { 117 DM da,dac,dag; 118 PetscErrorCode ierr; 119 PetscInt N,s,M,w,ncoors = 4; 120 const PetscInt *lx,*ly; 121 PetscReal coors[4]; 122 PetscDraw draw,popup; 123 PetscBool isnull,useports = PETSC_FALSE; 124 MPI_Comm comm; 125 Vec xlocal,xcoor,xcoorl; 126 DMBoundaryType bx,by; 127 DMDAStencilType st; 128 ZoomCtx zctx; 129 PetscDrawViewPorts *ports = NULL; 130 PetscViewerFormat format; 131 PetscInt *displayfields; 132 PetscInt ndisplayfields,i,nbounds; 133 const PetscReal *bounds; 134 135 PetscFunctionBegin; 136 zctx.showgrid = PETSC_FALSE; 137 zctx.showaxis = PETSC_TRUE; 138 139 ierr = PetscViewerDrawGetDraw(viewer,0,&draw);CHKERRQ(ierr); 140 ierr = PetscDrawIsNull(draw,&isnull);CHKERRQ(ierr); 141 if (isnull) PetscFunctionReturn(0); 142 143 ierr = PetscViewerDrawGetBounds(viewer,&nbounds,&bounds);CHKERRQ(ierr); 144 145 ierr = VecGetDM(xin,&da);CHKERRQ(ierr); 146 if (!da) SETERRQ(PetscObjectComm((PetscObject)xin),PETSC_ERR_ARG_WRONG,"Vector not generated from a DMDA"); 147 148 ierr = PetscObjectGetComm((PetscObject)xin,&comm);CHKERRQ(ierr); 149 ierr = MPI_Comm_rank(comm,&zctx.rank);CHKERRMPI(ierr); 150 151 ierr = DMDAGetInfo(da,NULL,&M,&N,NULL,&zctx.m,&zctx.n,NULL,&w,&s,&bx,&by,NULL,&st);CHKERRQ(ierr); 152 ierr = DMDAGetOwnershipRanges(da,&lx,&ly,NULL);CHKERRQ(ierr); 153 154 /* 155 Obtain a sequential vector that is going to contain the local values plus ONE layer of 156 ghosted values to draw the graphics from. We also need its corresponding DMDA (dac) that will 157 update the local values pluse ONE layer of ghost values. 158 */ 159 ierr = PetscObjectQuery((PetscObject)da,"GraphicsGhosted",(PetscObject*)&xlocal);CHKERRQ(ierr); 160 if (!xlocal) { 161 if (bx != DM_BOUNDARY_NONE || by != DM_BOUNDARY_NONE || s != 1 || st != DMDA_STENCIL_BOX) { 162 /* 163 if original da is not of stencil width one, or periodic or not a box stencil then 164 create a special DMDA to handle one level of ghost points for graphics 165 */ 166 ierr = DMDACreate2d(comm,DM_BOUNDARY_NONE,DM_BOUNDARY_NONE,DMDA_STENCIL_BOX,M,N,zctx.m,zctx.n,w,1,lx,ly,&dac);CHKERRQ(ierr); 167 ierr = DMSetUp(dac);CHKERRQ(ierr); 168 ierr = PetscInfo(da,"Creating auxilary DMDA for managing graphics ghost points\n");CHKERRQ(ierr); 169 } else { 170 /* otherwise we can use the da we already have */ 171 dac = da; 172 } 173 /* create local vector for holding ghosted values used in graphics */ 174 ierr = DMCreateLocalVector(dac,&xlocal);CHKERRQ(ierr); 175 if (dac != da) { 176 /* don't keep any public reference of this DMDA, is is only available through xlocal */ 177 ierr = PetscObjectDereference((PetscObject)dac);CHKERRQ(ierr); 178 } else { 179 /* remove association between xlocal and da, because below we compose in the opposite 180 direction and if we left this connect we'd get a loop, so the objects could 181 never be destroyed */ 182 ierr = PetscObjectRemoveReference((PetscObject)xlocal,"__PETSc_dm");CHKERRQ(ierr); 183 } 184 ierr = PetscObjectCompose((PetscObject)da,"GraphicsGhosted",(PetscObject)xlocal);CHKERRQ(ierr); 185 ierr = PetscObjectDereference((PetscObject)xlocal);CHKERRQ(ierr); 186 } else { 187 if (bx != DM_BOUNDARY_NONE || by != DM_BOUNDARY_NONE || s != 1 || st != DMDA_STENCIL_BOX) { 188 ierr = VecGetDM(xlocal, &dac);CHKERRQ(ierr); 189 } else { 190 dac = da; 191 } 192 } 193 194 /* 195 Get local (ghosted) values of vector 196 */ 197 ierr = DMGlobalToLocalBegin(dac,xin,INSERT_VALUES,xlocal);CHKERRQ(ierr); 198 ierr = DMGlobalToLocalEnd(dac,xin,INSERT_VALUES,xlocal);CHKERRQ(ierr); 199 ierr = VecGetArrayRead(xlocal,&zctx.v);CHKERRQ(ierr); 200 201 /* 202 Get coordinates of nodes 203 */ 204 ierr = DMGetCoordinates(da,&xcoor);CHKERRQ(ierr); 205 if (!xcoor) { 206 ierr = DMDASetUniformCoordinates(da,0.0,1.0,0.0,1.0,0.0,0.0);CHKERRQ(ierr); 207 ierr = DMGetCoordinates(da,&xcoor);CHKERRQ(ierr); 208 } 209 210 /* 211 Determine the min and max coordinates in plot 212 */ 213 ierr = VecStrideMin(xcoor,0,NULL,&zctx.xmin);CHKERRQ(ierr); 214 ierr = VecStrideMax(xcoor,0,NULL,&zctx.xmax);CHKERRQ(ierr); 215 ierr = VecStrideMin(xcoor,1,NULL,&zctx.ymin);CHKERRQ(ierr); 216 ierr = VecStrideMax(xcoor,1,NULL,&zctx.ymax);CHKERRQ(ierr); 217 ierr = PetscOptionsGetBool(NULL,NULL,"-draw_contour_axis",&zctx.showaxis,NULL);CHKERRQ(ierr); 218 if (zctx.showaxis) { 219 coors[0] = zctx.xmin - .05*(zctx.xmax - zctx.xmin); coors[1] = zctx.ymin - .05*(zctx.ymax - zctx.ymin); 220 coors[2] = zctx.xmax + .05*(zctx.xmax - zctx.xmin); coors[3] = zctx.ymax + .05*(zctx.ymax - zctx.ymin); 221 } else { 222 coors[0] = zctx.xmin; coors[1] = zctx.ymin; coors[2] = zctx.xmax; coors[3] = zctx.ymax; 223 } 224 ierr = PetscOptionsGetRealArray(NULL,NULL,"-draw_coordinates",coors,&ncoors,NULL);CHKERRQ(ierr); 225 ierr = PetscInfo4(da,"Preparing DMDA 2d contour plot coordinates %g %g %g %g\n",(double)coors[0],(double)coors[1],(double)coors[2],(double)coors[3]);CHKERRQ(ierr); 226 227 /* 228 Get local ghosted version of coordinates 229 */ 230 ierr = PetscObjectQuery((PetscObject)da,"GraphicsCoordinateGhosted",(PetscObject*)&xcoorl);CHKERRQ(ierr); 231 if (!xcoorl) { 232 /* create DMDA to get local version of graphics */ 233 ierr = DMDACreate2d(comm,DM_BOUNDARY_NONE,DM_BOUNDARY_NONE,DMDA_STENCIL_BOX,M,N,zctx.m,zctx.n,2,1,lx,ly,&dag);CHKERRQ(ierr); 234 ierr = DMSetUp(dag);CHKERRQ(ierr); 235 ierr = PetscInfo(dag,"Creating auxilary DMDA for managing graphics coordinates ghost points\n");CHKERRQ(ierr); 236 ierr = DMCreateLocalVector(dag,&xcoorl);CHKERRQ(ierr); 237 ierr = PetscObjectCompose((PetscObject)da,"GraphicsCoordinateGhosted",(PetscObject)xcoorl);CHKERRQ(ierr); 238 ierr = PetscObjectDereference((PetscObject)dag);CHKERRQ(ierr); 239 ierr = PetscObjectDereference((PetscObject)xcoorl);CHKERRQ(ierr); 240 } else { 241 ierr = VecGetDM(xcoorl,&dag);CHKERRQ(ierr); 242 } 243 ierr = DMGlobalToLocalBegin(dag,xcoor,INSERT_VALUES,xcoorl);CHKERRQ(ierr); 244 ierr = DMGlobalToLocalEnd(dag,xcoor,INSERT_VALUES,xcoorl);CHKERRQ(ierr); 245 ierr = VecGetArrayRead(xcoorl,&zctx.xy);CHKERRQ(ierr); 246 ierr = DMDAGetCoordinateName(da,0,&zctx.name0);CHKERRQ(ierr); 247 ierr = DMDAGetCoordinateName(da,1,&zctx.name1);CHKERRQ(ierr); 248 249 /* 250 Get information about size of area each processor must do graphics for 251 */ 252 ierr = DMDAGetInfo(dac,NULL,&M,&N,NULL,NULL,NULL,NULL,&zctx.dof,NULL,&bx,&by,NULL,NULL);CHKERRQ(ierr); 253 ierr = DMDAGetGhostCorners(dac,NULL,NULL,NULL,&zctx.m,&zctx.n,NULL);CHKERRQ(ierr); 254 ierr = PetscOptionsGetBool(NULL,NULL,"-draw_contour_grid",&zctx.showgrid,NULL);CHKERRQ(ierr); 255 256 ierr = DMDASelectFields(da,&ndisplayfields,&displayfields);CHKERRQ(ierr); 257 ierr = PetscViewerGetFormat(viewer,&format);CHKERRQ(ierr); 258 ierr = PetscOptionsGetBool(NULL,NULL,"-draw_ports",&useports,NULL);CHKERRQ(ierr); 259 if (format == PETSC_VIEWER_DRAW_PORTS) useports = PETSC_TRUE; 260 if (useports) { 261 ierr = PetscViewerDrawGetDraw(viewer,0,&draw);CHKERRQ(ierr); 262 ierr = PetscDrawCheckResizedWindow(draw);CHKERRQ(ierr); 263 ierr = PetscDrawClear(draw);CHKERRQ(ierr); 264 ierr = PetscDrawViewPortsCreate(draw,ndisplayfields,&ports);CHKERRQ(ierr); 265 } 266 267 /* 268 Loop over each field; drawing each in a different window 269 */ 270 for (i=0; i<ndisplayfields; i++) { 271 zctx.k = displayfields[i]; 272 273 /* determine the min and max value in plot */ 274 ierr = VecStrideMin(xin,zctx.k,NULL,&zctx.min);CHKERRQ(ierr); 275 ierr = VecStrideMax(xin,zctx.k,NULL,&zctx.max);CHKERRQ(ierr); 276 if (zctx.k < nbounds) { 277 zctx.min = bounds[2*zctx.k]; 278 zctx.max = bounds[2*zctx.k+1]; 279 } 280 if (zctx.min == zctx.max) { 281 zctx.min -= 1.e-12; 282 zctx.max += 1.e-12; 283 } 284 ierr = PetscInfo2(da,"DMDA 2d contour plot min %g max %g\n",(double)zctx.min,(double)zctx.max);CHKERRQ(ierr); 285 286 if (useports) { 287 ierr = PetscDrawViewPortsSet(ports,i);CHKERRQ(ierr); 288 } else { 289 const char *title; 290 ierr = PetscViewerDrawGetDraw(viewer,i,&draw);CHKERRQ(ierr); 291 ierr = DMDAGetFieldName(da,zctx.k,&title);CHKERRQ(ierr); 292 if (title) {ierr = PetscDrawSetTitle(draw,title);CHKERRQ(ierr);} 293 } 294 295 ierr = PetscDrawGetPopup(draw,&popup);CHKERRQ(ierr); 296 ierr = PetscDrawScalePopup(popup,zctx.min,zctx.max);CHKERRQ(ierr); 297 ierr = PetscDrawSetCoordinates(draw,coors[0],coors[1],coors[2],coors[3]);CHKERRQ(ierr); 298 ierr = PetscDrawZoom(draw,VecView_MPI_Draw_DA2d_Zoom,&zctx);CHKERRQ(ierr); 299 if (!useports) {ierr = PetscDrawSave(draw);CHKERRQ(ierr);} 300 } 301 if (useports) { 302 ierr = PetscViewerDrawGetDraw(viewer,0,&draw);CHKERRQ(ierr); 303 ierr = PetscDrawSave(draw);CHKERRQ(ierr); 304 } 305 306 ierr = PetscDrawViewPortsDestroy(ports);CHKERRQ(ierr); 307 ierr = PetscFree(displayfields);CHKERRQ(ierr); 308 ierr = VecRestoreArrayRead(xcoorl,&zctx.xy);CHKERRQ(ierr); 309 ierr = VecRestoreArrayRead(xlocal,&zctx.v);CHKERRQ(ierr); 310 PetscFunctionReturn(0); 311 } 312 313 #if defined(PETSC_HAVE_HDF5) 314 static PetscErrorCode VecGetHDF5ChunkSize(DM_DA *da, Vec xin, PetscInt dimension, PetscInt timestep, hsize_t *chunkDims) 315 { 316 PetscMPIInt comm_size; 317 PetscErrorCode ierr; 318 hsize_t chunk_size, target_size, dim; 319 hsize_t vec_size = sizeof(PetscScalar)*da->M*da->N*da->P*da->w; 320 hsize_t avg_local_vec_size,KiB = 1024,MiB = KiB*KiB,GiB = MiB*KiB,min_size = MiB; 321 hsize_t max_chunks = 64*KiB; /* HDF5 internal limitation */ 322 hsize_t max_chunk_size = 4*GiB; /* HDF5 internal limitation */ 323 PetscInt zslices=da->p, yslices=da->n, xslices=da->m; 324 325 PetscFunctionBegin; 326 ierr = MPI_Comm_size(PetscObjectComm((PetscObject)xin), &comm_size);CHKERRMPI(ierr); 327 avg_local_vec_size = (hsize_t) ceil(vec_size*1.0/comm_size); /* we will attempt to use this as the chunk size */ 328 329 target_size = (hsize_t) ceil(PetscMin(vec_size,PetscMin(max_chunk_size,PetscMax(avg_local_vec_size,PetscMax(ceil(vec_size*1.0/max_chunks),min_size))))); 330 /* following line uses sizeof(PetscReal) instead of sizeof(PetscScalar) because the last dimension of chunkDims[] captures the 2* when complex numbers are being used */ 331 chunk_size = (hsize_t) PetscMax(1,chunkDims[0])*PetscMax(1,chunkDims[1])*PetscMax(1,chunkDims[2])*PetscMax(1,chunkDims[3])*PetscMax(1,chunkDims[4])*PetscMax(1,chunkDims[5])*sizeof(PetscReal); 332 333 /* 334 if size/rank > max_chunk_size, we need radical measures: even going down to 335 avg_local_vec_size is not enough, so we simply use chunk size of 4 GiB no matter 336 what, composed in the most efficient way possible. 337 N.B. this minimises the number of chunks, which may or may not be the optimal 338 solution. In a BG, for example, the optimal solution is probably to make # chunks = # 339 IO nodes involved, but this author has no access to a BG to figure out how to 340 reliably find the right number. And even then it may or may not be enough. 341 */ 342 if (avg_local_vec_size > max_chunk_size) { 343 /* check if we can just split local z-axis: is that enough? */ 344 zslices = (PetscInt)ceil(vec_size*1.0/(da->p*max_chunk_size))*zslices; 345 if (zslices > da->P) { 346 /* lattice is too large in xy-directions, splitting z only is not enough */ 347 zslices = da->P; 348 yslices= (PetscInt)ceil(vec_size*1.0/(zslices*da->n*max_chunk_size))*yslices; 349 if (yslices > da->N) { 350 /* lattice is too large in x-direction, splitting along z, y is not enough */ 351 yslices = da->N; 352 xslices= (PetscInt)ceil(vec_size*1.0/(zslices*yslices*da->m*max_chunk_size))*xslices; 353 } 354 } 355 dim = 0; 356 if (timestep >= 0) { 357 ++dim; 358 } 359 /* prefer to split z-axis, even down to planar slices */ 360 if (dimension == 3) { 361 chunkDims[dim++] = (hsize_t) da->P/zslices; 362 chunkDims[dim++] = (hsize_t) da->N/yslices; 363 chunkDims[dim++] = (hsize_t) da->M/xslices; 364 } else { 365 /* This is a 2D world exceeding 4GiB in size; yes, I've seen them, even used myself */ 366 chunkDims[dim++] = (hsize_t) da->N/yslices; 367 chunkDims[dim++] = (hsize_t) da->M/xslices; 368 } 369 chunk_size = (hsize_t) PetscMax(1,chunkDims[0])*PetscMax(1,chunkDims[1])*PetscMax(1,chunkDims[2])*PetscMax(1,chunkDims[3])*PetscMax(1,chunkDims[4])*PetscMax(1,chunkDims[5])*sizeof(double); 370 } else { 371 if (target_size < chunk_size) { 372 /* only change the defaults if target_size < chunk_size */ 373 dim = 0; 374 if (timestep >= 0) { 375 ++dim; 376 } 377 /* prefer to split z-axis, even down to planar slices */ 378 if (dimension == 3) { 379 /* try splitting the z-axis to core-size bits, i.e. divide chunk size by # comm_size in z-direction */ 380 if (target_size >= chunk_size/da->p) { 381 /* just make chunks the size of <local_z>x<whole_world_y>x<whole_world_x>x<dof> */ 382 chunkDims[dim] = (hsize_t) ceil(da->P*1.0/da->p); 383 } else { 384 /* oops, just splitting the z-axis is NOT ENOUGH, need to split more; let's be 385 radical and let everyone write all they've got */ 386 chunkDims[dim++] = (hsize_t) ceil(da->P*1.0/da->p); 387 chunkDims[dim++] = (hsize_t) ceil(da->N*1.0/da->n); 388 chunkDims[dim++] = (hsize_t) ceil(da->M*1.0/da->m); 389 } 390 } else { 391 /* This is a 2D world exceeding 4GiB in size; yes, I've seen them, even used myself */ 392 if (target_size >= chunk_size/da->n) { 393 /* just make chunks the size of <local_z>x<whole_world_y>x<whole_world_x>x<dof> */ 394 chunkDims[dim] = (hsize_t) ceil(da->N*1.0/da->n); 395 } else { 396 /* oops, just splitting the z-axis is NOT ENOUGH, need to split more; let's be 397 radical and let everyone write all they've got */ 398 chunkDims[dim++] = (hsize_t) ceil(da->N*1.0/da->n); 399 chunkDims[dim++] = (hsize_t) ceil(da->M*1.0/da->m); 400 } 401 402 } 403 chunk_size = (hsize_t) PetscMax(1,chunkDims[0])*PetscMax(1,chunkDims[1])*PetscMax(1,chunkDims[2])*PetscMax(1,chunkDims[3])*PetscMax(1,chunkDims[4])*PetscMax(1,chunkDims[5])*sizeof(double); 404 } else { 405 /* precomputed chunks are fine, we don't need to do anything */ 406 } 407 } 408 PetscFunctionReturn(0); 409 } 410 #endif 411 412 #if defined(PETSC_HAVE_HDF5) 413 PetscErrorCode VecView_MPI_HDF5_DA(Vec xin,PetscViewer viewer) 414 { 415 PetscViewer_HDF5 *hdf5 = (PetscViewer_HDF5*) viewer->data; 416 DM dm; 417 DM_DA *da; 418 hid_t filespace; /* file dataspace identifier */ 419 hid_t chunkspace; /* chunk dataset property identifier */ 420 hid_t dset_id; /* dataset identifier */ 421 hid_t memspace; /* memory dataspace identifier */ 422 hid_t file_id; 423 hid_t group; 424 hid_t memscalartype; /* scalar type for mem (H5T_NATIVE_FLOAT or H5T_NATIVE_DOUBLE) */ 425 hid_t filescalartype; /* scalar type for file (H5T_NATIVE_FLOAT or H5T_NATIVE_DOUBLE) */ 426 hsize_t dim; 427 hsize_t maxDims[6]={0}, dims[6]={0}, chunkDims[6]={0}, count[6]={0}, offset[6]={0}; /* we depend on these being sane later on */ 428 PetscBool timestepping=PETSC_FALSE, dim2, spoutput; 429 PetscInt timestep=PETSC_MIN_INT, dimension; 430 const PetscScalar *x; 431 const char *vecname; 432 PetscErrorCode ierr; 433 434 PetscFunctionBegin; 435 ierr = PetscViewerHDF5OpenGroup(viewer, &file_id, &group);CHKERRQ(ierr); 436 ierr = PetscViewerHDF5IsTimestepping(viewer, ×tepping);CHKERRQ(ierr); 437 if (timestepping) { 438 ierr = PetscViewerHDF5GetTimestep(viewer, ×tep);CHKERRQ(ierr); 439 } 440 ierr = PetscViewerHDF5GetBaseDimension2(viewer,&dim2);CHKERRQ(ierr); 441 ierr = PetscViewerHDF5GetSPOutput(viewer,&spoutput);CHKERRQ(ierr); 442 443 ierr = VecGetDM(xin,&dm);CHKERRQ(ierr); 444 if (!dm) SETERRQ(PetscObjectComm((PetscObject)xin),PETSC_ERR_ARG_WRONG,"Vector not generated from a DMDA"); 445 da = (DM_DA*)dm->data; 446 ierr = DMGetDimension(dm, &dimension);CHKERRQ(ierr); 447 448 /* Create the dataspace for the dataset. 449 * 450 * dims - holds the current dimensions of the dataset 451 * 452 * maxDims - holds the maximum dimensions of the dataset (unlimited 453 * for the number of time steps with the current dimensions for the 454 * other dimensions; so only additional time steps can be added). 455 * 456 * chunkDims - holds the size of a single time step (required to 457 * permit extending dataset). 458 */ 459 dim = 0; 460 if (timestep >= 0) { 461 dims[dim] = timestep+1; 462 maxDims[dim] = H5S_UNLIMITED; 463 chunkDims[dim] = 1; 464 ++dim; 465 } 466 if (dimension == 3) { 467 ierr = PetscHDF5IntCast(da->P,dims+dim);CHKERRQ(ierr); 468 maxDims[dim] = dims[dim]; 469 chunkDims[dim] = dims[dim]; 470 ++dim; 471 } 472 if (dimension > 1) { 473 ierr = PetscHDF5IntCast(da->N,dims+dim);CHKERRQ(ierr); 474 maxDims[dim] = dims[dim]; 475 chunkDims[dim] = dims[dim]; 476 ++dim; 477 } 478 ierr = PetscHDF5IntCast(da->M,dims+dim);CHKERRQ(ierr); 479 maxDims[dim] = dims[dim]; 480 chunkDims[dim] = dims[dim]; 481 ++dim; 482 if (da->w > 1 || dim2) { 483 ierr = PetscHDF5IntCast(da->w,dims+dim);CHKERRQ(ierr); 484 maxDims[dim] = dims[dim]; 485 chunkDims[dim] = dims[dim]; 486 ++dim; 487 } 488 #if defined(PETSC_USE_COMPLEX) 489 dims[dim] = 2; 490 maxDims[dim] = dims[dim]; 491 chunkDims[dim] = dims[dim]; 492 ++dim; 493 #endif 494 495 ierr = VecGetHDF5ChunkSize(da, xin, dimension, timestep, chunkDims);CHKERRQ(ierr); 496 497 PetscStackCallHDF5Return(filespace,H5Screate_simple,(dim, dims, maxDims)); 498 499 #if defined(PETSC_USE_REAL_SINGLE) 500 memscalartype = H5T_NATIVE_FLOAT; 501 filescalartype = H5T_NATIVE_FLOAT; 502 #elif defined(PETSC_USE_REAL___FLOAT128) 503 #error "HDF5 output with 128 bit floats not supported." 504 #elif defined(PETSC_USE_REAL___FP16) 505 #error "HDF5 output with 16 bit floats not supported." 506 #else 507 memscalartype = H5T_NATIVE_DOUBLE; 508 if (spoutput == PETSC_TRUE) filescalartype = H5T_NATIVE_FLOAT; 509 else filescalartype = H5T_NATIVE_DOUBLE; 510 #endif 511 512 /* Create the dataset with default properties and close filespace */ 513 ierr = PetscObjectGetName((PetscObject)xin,&vecname);CHKERRQ(ierr); 514 if (!H5Lexists(group, vecname, H5P_DEFAULT)) { 515 /* Create chunk */ 516 PetscStackCallHDF5Return(chunkspace,H5Pcreate,(H5P_DATASET_CREATE)); 517 PetscStackCallHDF5(H5Pset_chunk,(chunkspace, dim, chunkDims)); 518 519 PetscStackCallHDF5Return(dset_id,H5Dcreate2,(group, vecname, filescalartype, filespace, H5P_DEFAULT, chunkspace, H5P_DEFAULT)); 520 } else { 521 PetscStackCallHDF5Return(dset_id,H5Dopen2,(group, vecname, H5P_DEFAULT)); 522 PetscStackCallHDF5(H5Dset_extent,(dset_id, dims)); 523 } 524 PetscStackCallHDF5(H5Sclose,(filespace)); 525 526 /* Each process defines a dataset and writes it to the hyperslab in the file */ 527 dim = 0; 528 if (timestep >= 0) { 529 offset[dim] = timestep; 530 ++dim; 531 } 532 if (dimension == 3) {ierr = PetscHDF5IntCast(da->zs,offset + dim++);CHKERRQ(ierr);} 533 if (dimension > 1) {ierr = PetscHDF5IntCast(da->ys,offset + dim++);CHKERRQ(ierr);} 534 ierr = PetscHDF5IntCast(da->xs/da->w,offset + dim++);CHKERRQ(ierr); 535 if (da->w > 1 || dim2) offset[dim++] = 0; 536 #if defined(PETSC_USE_COMPLEX) 537 offset[dim++] = 0; 538 #endif 539 dim = 0; 540 if (timestep >= 0) { 541 count[dim] = 1; 542 ++dim; 543 } 544 if (dimension == 3) {ierr = PetscHDF5IntCast(da->ze - da->zs,count + dim++);CHKERRQ(ierr);} 545 if (dimension > 1) {ierr = PetscHDF5IntCast(da->ye - da->ys,count + dim++);CHKERRQ(ierr);} 546 ierr = PetscHDF5IntCast((da->xe - da->xs)/da->w,count + dim++);CHKERRQ(ierr); 547 if (da->w > 1 || dim2) {ierr = PetscHDF5IntCast(da->w,count + dim++);CHKERRQ(ierr);} 548 #if defined(PETSC_USE_COMPLEX) 549 count[dim++] = 2; 550 #endif 551 PetscStackCallHDF5Return(memspace,H5Screate_simple,(dim, count, NULL)); 552 PetscStackCallHDF5Return(filespace,H5Dget_space,(dset_id)); 553 PetscStackCallHDF5(H5Sselect_hyperslab,(filespace, H5S_SELECT_SET, offset, NULL, count, NULL)); 554 555 ierr = VecGetArrayRead(xin, &x);CHKERRQ(ierr); 556 PetscStackCallHDF5(H5Dwrite,(dset_id, memscalartype, memspace, filespace, hdf5->dxpl_id, x)); 557 PetscStackCallHDF5(H5Fflush,(file_id, H5F_SCOPE_GLOBAL)); 558 ierr = VecRestoreArrayRead(xin, &x);CHKERRQ(ierr); 559 560 #if defined(PETSC_USE_COMPLEX) 561 { 562 PetscBool tru = PETSC_TRUE; 563 ierr = PetscViewerHDF5WriteObjectAttribute(viewer,(PetscObject)xin,"complex",PETSC_BOOL,&tru);CHKERRQ(ierr); 564 } 565 #endif 566 if (timestepping) { 567 ierr = PetscViewerHDF5WriteObjectAttribute(viewer,(PetscObject)xin,"timestepping",PETSC_BOOL,×tepping);CHKERRQ(ierr); 568 } 569 570 /* Close/release resources */ 571 if (group != file_id) { 572 PetscStackCallHDF5(H5Gclose,(group)); 573 } 574 PetscStackCallHDF5(H5Sclose,(filespace)); 575 PetscStackCallHDF5(H5Sclose,(memspace)); 576 PetscStackCallHDF5(H5Dclose,(dset_id)); 577 ierr = PetscInfo1(xin,"Wrote Vec object with name %s\n",vecname);CHKERRQ(ierr); 578 PetscFunctionReturn(0); 579 } 580 #endif 581 582 extern PetscErrorCode VecView_MPI_Draw_DA1d(Vec,PetscViewer); 583 584 #if defined(PETSC_HAVE_MPIIO) 585 static PetscErrorCode DMDAArrayMPIIO(DM da,PetscViewer viewer,Vec xin,PetscBool write) 586 { 587 PetscErrorCode ierr; 588 MPI_File mfdes; 589 PetscMPIInt gsizes[4],lsizes[4],lstarts[4],asiz,dof; 590 MPI_Datatype view; 591 const PetscScalar *array; 592 MPI_Offset off; 593 MPI_Aint ub,ul; 594 PetscInt type,rows,vecrows,tr[2]; 595 DM_DA *dd = (DM_DA*)da->data; 596 PetscBool skipheader; 597 598 PetscFunctionBegin; 599 ierr = VecGetSize(xin,&vecrows);CHKERRQ(ierr); 600 ierr = PetscViewerBinaryGetSkipHeader(viewer,&skipheader);CHKERRQ(ierr); 601 if (!write) { 602 /* Read vector header. */ 603 if (!skipheader) { 604 ierr = PetscViewerBinaryRead(viewer,tr,2,NULL,PETSC_INT);CHKERRQ(ierr); 605 type = tr[0]; 606 rows = tr[1]; 607 if (type != VEC_FILE_CLASSID) SETERRQ(PetscObjectComm((PetscObject)da),PETSC_ERR_ARG_WRONG,"Not vector next in file"); 608 if (rows != vecrows) SETERRQ(PetscObjectComm((PetscObject)da),PETSC_ERR_ARG_SIZ,"Vector in file not same size as DMDA vector"); 609 } 610 } else { 611 tr[0] = VEC_FILE_CLASSID; 612 tr[1] = vecrows; 613 if (!skipheader) { 614 ierr = PetscViewerBinaryWrite(viewer,tr,2,PETSC_INT);CHKERRQ(ierr); 615 } 616 } 617 618 ierr = PetscMPIIntCast(dd->w,&dof);CHKERRQ(ierr); 619 gsizes[0] = dof; 620 ierr = PetscMPIIntCast(dd->M,gsizes+1);CHKERRQ(ierr); 621 ierr = PetscMPIIntCast(dd->N,gsizes+2);CHKERRQ(ierr); 622 ierr = PetscMPIIntCast(dd->P,gsizes+3);CHKERRQ(ierr); 623 lsizes[0] = dof; 624 ierr = PetscMPIIntCast((dd->xe-dd->xs)/dof,lsizes+1);CHKERRQ(ierr); 625 ierr = PetscMPIIntCast(dd->ye-dd->ys,lsizes+2);CHKERRQ(ierr); 626 ierr = PetscMPIIntCast(dd->ze-dd->zs,lsizes+3);CHKERRQ(ierr); 627 lstarts[0] = 0; 628 ierr = PetscMPIIntCast(dd->xs/dof,lstarts+1);CHKERRQ(ierr); 629 ierr = PetscMPIIntCast(dd->ys,lstarts+2);CHKERRQ(ierr); 630 ierr = PetscMPIIntCast(dd->zs,lstarts+3);CHKERRQ(ierr); 631 ierr = MPI_Type_create_subarray(da->dim+1,gsizes,lsizes,lstarts,MPI_ORDER_FORTRAN,MPIU_SCALAR,&view);CHKERRMPI(ierr); 632 ierr = MPI_Type_commit(&view);CHKERRMPI(ierr); 633 634 ierr = PetscViewerBinaryGetMPIIODescriptor(viewer,&mfdes);CHKERRQ(ierr); 635 ierr = PetscViewerBinaryGetMPIIOOffset(viewer,&off);CHKERRQ(ierr); 636 ierr = MPI_File_set_view(mfdes,off,MPIU_SCALAR,view,(char*)"native",MPI_INFO_NULL);CHKERRMPI(ierr); 637 ierr = VecGetArrayRead(xin,&array);CHKERRQ(ierr); 638 asiz = lsizes[1]*(lsizes[2] > 0 ? lsizes[2] : 1)*(lsizes[3] > 0 ? lsizes[3] : 1)*dof; 639 if (write) { 640 ierr = MPIU_File_write_all(mfdes,(PetscScalar*)array,asiz,MPIU_SCALAR,MPI_STATUS_IGNORE);CHKERRQ(ierr); 641 } else { 642 ierr = MPIU_File_read_all(mfdes,(PetscScalar*)array,asiz,MPIU_SCALAR,MPI_STATUS_IGNORE);CHKERRQ(ierr); 643 } 644 ierr = MPI_Type_get_extent(view,&ul,&ub);CHKERRMPI(ierr); 645 ierr = PetscViewerBinaryAddMPIIOOffset(viewer,ub);CHKERRQ(ierr); 646 ierr = VecRestoreArrayRead(xin,&array);CHKERRQ(ierr); 647 ierr = MPI_Type_free(&view);CHKERRMPI(ierr); 648 PetscFunctionReturn(0); 649 } 650 #endif 651 652 PetscErrorCode VecView_MPI_DA(Vec xin,PetscViewer viewer) 653 { 654 DM da; 655 PetscErrorCode ierr; 656 PetscInt dim; 657 Vec natural; 658 PetscBool isdraw,isvtk,isglvis; 659 #if defined(PETSC_HAVE_HDF5) 660 PetscBool ishdf5; 661 #endif 662 const char *prefix,*name; 663 PetscViewerFormat format; 664 665 PetscFunctionBegin; 666 ierr = VecGetDM(xin,&da);CHKERRQ(ierr); 667 if (!da) SETERRQ(PetscObjectComm((PetscObject)xin),PETSC_ERR_ARG_WRONG,"Vector not generated from a DMDA"); 668 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw);CHKERRQ(ierr); 669 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERVTK,&isvtk);CHKERRQ(ierr); 670 #if defined(PETSC_HAVE_HDF5) 671 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERHDF5,&ishdf5);CHKERRQ(ierr); 672 #endif 673 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERGLVIS,&isglvis);CHKERRQ(ierr); 674 if (isdraw) { 675 ierr = DMDAGetInfo(da,&dim,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL);CHKERRQ(ierr); 676 if (dim == 1) { 677 ierr = VecView_MPI_Draw_DA1d(xin,viewer);CHKERRQ(ierr); 678 } else if (dim == 2) { 679 ierr = VecView_MPI_Draw_DA2d(xin,viewer);CHKERRQ(ierr); 680 } else SETERRQ1(PetscObjectComm((PetscObject)da),PETSC_ERR_SUP,"Cannot graphically view vector associated with this dimensional DMDA %D",dim); 681 } else if (isvtk) { /* Duplicate the Vec */ 682 Vec Y; 683 ierr = VecDuplicate(xin,&Y);CHKERRQ(ierr); 684 if (((PetscObject)xin)->name) { 685 /* If xin was named, copy the name over to Y. The duplicate names are safe because nobody else will ever see Y. */ 686 ierr = PetscObjectSetName((PetscObject)Y,((PetscObject)xin)->name);CHKERRQ(ierr); 687 } 688 ierr = VecCopy(xin,Y);CHKERRQ(ierr); 689 { 690 PetscObject dmvtk; 691 PetscBool compatible,compatibleSet; 692 ierr = PetscViewerVTKGetDM(viewer,&dmvtk);CHKERRQ(ierr); 693 if (dmvtk) { 694 PetscValidHeaderSpecific((DM)dmvtk,DM_CLASSID,2); 695 ierr = DMGetCompatibility(da,(DM)dmvtk,&compatible,&compatibleSet);CHKERRQ(ierr); 696 if (!compatibleSet || !compatible) SETERRQ(PetscObjectComm((PetscObject)da),PETSC_ERR_ARG_INCOMP,"Cannot confirm compatibility of DMs associated with Vecs viewed in the same VTK file. Check that grids are the same."); 697 } 698 ierr = PetscViewerVTKAddField(viewer,(PetscObject)da,DMDAVTKWriteAll,PETSC_DEFAULT,PETSC_VTK_POINT_FIELD,PETSC_FALSE,(PetscObject)Y);CHKERRQ(ierr); 699 } 700 #if defined(PETSC_HAVE_HDF5) 701 } else if (ishdf5) { 702 ierr = VecView_MPI_HDF5_DA(xin,viewer);CHKERRQ(ierr); 703 #endif 704 } else if (isglvis) { 705 ierr = VecView_GLVis(xin,viewer);CHKERRQ(ierr); 706 } else { 707 #if defined(PETSC_HAVE_MPIIO) 708 PetscBool isbinary,isMPIIO; 709 710 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERBINARY,&isbinary);CHKERRQ(ierr); 711 if (isbinary) { 712 ierr = PetscViewerBinaryGetUseMPIIO(viewer,&isMPIIO);CHKERRQ(ierr); 713 if (isMPIIO) { 714 ierr = DMDAArrayMPIIO(da,viewer,xin,PETSC_TRUE);CHKERRQ(ierr); 715 PetscFunctionReturn(0); 716 } 717 } 718 #endif 719 720 /* call viewer on natural ordering */ 721 ierr = PetscObjectGetOptionsPrefix((PetscObject)xin,&prefix);CHKERRQ(ierr); 722 ierr = DMDACreateNaturalVector(da,&natural);CHKERRQ(ierr); 723 ierr = PetscObjectSetOptionsPrefix((PetscObject)natural,prefix);CHKERRQ(ierr); 724 ierr = DMDAGlobalToNaturalBegin(da,xin,INSERT_VALUES,natural);CHKERRQ(ierr); 725 ierr = DMDAGlobalToNaturalEnd(da,xin,INSERT_VALUES,natural);CHKERRQ(ierr); 726 ierr = PetscObjectGetName((PetscObject)xin,&name);CHKERRQ(ierr); 727 ierr = PetscObjectSetName((PetscObject)natural,name);CHKERRQ(ierr); 728 729 ierr = PetscViewerGetFormat(viewer,&format);CHKERRQ(ierr); 730 if (format == PETSC_VIEWER_BINARY_MATLAB) { 731 /* temporarily remove viewer format so it won't trigger in the VecView() */ 732 ierr = PetscViewerPushFormat(viewer,PETSC_VIEWER_DEFAULT);CHKERRQ(ierr); 733 } 734 735 ((PetscObject)natural)->donotPetscObjectPrintClassNamePrefixType = PETSC_TRUE; 736 ierr = VecView(natural,viewer);CHKERRQ(ierr); 737 ((PetscObject)natural)->donotPetscObjectPrintClassNamePrefixType = PETSC_FALSE; 738 739 if (format == PETSC_VIEWER_BINARY_MATLAB) { 740 MPI_Comm comm; 741 FILE *info; 742 const char *fieldname; 743 char fieldbuf[256]; 744 PetscInt dim,ni,nj,nk,pi,pj,pk,dof,n; 745 746 /* set the viewer format back into the viewer */ 747 ierr = PetscViewerPopFormat(viewer);CHKERRQ(ierr); 748 ierr = PetscObjectGetComm((PetscObject)viewer,&comm);CHKERRQ(ierr); 749 ierr = PetscViewerBinaryGetInfoPointer(viewer,&info);CHKERRQ(ierr); 750 ierr = DMDAGetInfo(da,&dim,&ni,&nj,&nk,&pi,&pj,&pk,&dof,NULL,NULL,NULL,NULL,NULL);CHKERRQ(ierr); 751 ierr = PetscFPrintf(comm,info,"#--- begin code written by PetscViewerBinary for MATLAB format ---#\n");CHKERRQ(ierr); 752 ierr = PetscFPrintf(comm,info,"#$$ tmp = PetscBinaryRead(fd); \n");CHKERRQ(ierr); 753 if (dim == 1) { ierr = PetscFPrintf(comm,info,"#$$ tmp = reshape(tmp,%d,%d);\n",dof,ni);CHKERRQ(ierr); } 754 if (dim == 2) { ierr = PetscFPrintf(comm,info,"#$$ tmp = reshape(tmp,%d,%d,%d);\n",dof,ni,nj);CHKERRQ(ierr); } 755 if (dim == 3) { ierr = PetscFPrintf(comm,info,"#$$ tmp = reshape(tmp,%d,%d,%d,%d);\n",dof,ni,nj,nk);CHKERRQ(ierr); } 756 757 for (n=0; n<dof; n++) { 758 ierr = DMDAGetFieldName(da,n,&fieldname);CHKERRQ(ierr); 759 if (!fieldname || !fieldname[0]) { 760 ierr = PetscSNPrintf(fieldbuf,sizeof fieldbuf,"field%D",n);CHKERRQ(ierr); 761 fieldname = fieldbuf; 762 } 763 if (dim == 1) { ierr = PetscFPrintf(comm,info,"#$$ Set.%s.%s = squeeze(tmp(%d,:))';\n",name,fieldname,n+1);CHKERRQ(ierr); } 764 if (dim == 2) { ierr = PetscFPrintf(comm,info,"#$$ Set.%s.%s = squeeze(tmp(%d,:,:))';\n",name,fieldname,n+1);CHKERRQ(ierr); } 765 if (dim == 3) { ierr = PetscFPrintf(comm,info,"#$$ Set.%s.%s = permute(squeeze(tmp(%d,:,:,:)),[2 1 3]);\n",name,fieldname,n+1);CHKERRQ(ierr);} 766 } 767 ierr = PetscFPrintf(comm,info,"#$$ clear tmp; \n");CHKERRQ(ierr); 768 ierr = PetscFPrintf(comm,info,"#--- end code written by PetscViewerBinary for MATLAB format ---#\n\n");CHKERRQ(ierr); 769 } 770 771 ierr = VecDestroy(&natural);CHKERRQ(ierr); 772 } 773 PetscFunctionReturn(0); 774 } 775 776 #if defined(PETSC_HAVE_HDF5) 777 PetscErrorCode VecLoad_HDF5_DA(Vec xin, PetscViewer viewer) 778 { 779 PetscViewer_HDF5 *hdf5 = (PetscViewer_HDF5*) viewer->data; 780 DM da; 781 PetscErrorCode ierr; 782 int dim,rdim; 783 hsize_t dims[6]={0},count[6]={0},offset[6]={0}; 784 PetscBool dim2=PETSC_FALSE,timestepping=PETSC_FALSE; 785 PetscInt dimension,timestep=PETSC_MIN_INT,dofInd; 786 PetscScalar *x; 787 const char *vecname; 788 hid_t filespace; /* file dataspace identifier */ 789 hid_t dset_id; /* dataset identifier */ 790 hid_t memspace; /* memory dataspace identifier */ 791 hid_t file_id,group; 792 hid_t scalartype; /* scalar type (H5T_NATIVE_FLOAT or H5T_NATIVE_DOUBLE) */ 793 DM_DA *dd; 794 795 PetscFunctionBegin; 796 #if defined(PETSC_USE_REAL_SINGLE) 797 scalartype = H5T_NATIVE_FLOAT; 798 #elif defined(PETSC_USE_REAL___FLOAT128) 799 #error "HDF5 output with 128 bit floats not supported." 800 #elif defined(PETSC_USE_REAL___FP16) 801 #error "HDF5 output with 16 bit floats not supported." 802 #else 803 scalartype = H5T_NATIVE_DOUBLE; 804 #endif 805 806 ierr = PetscViewerHDF5OpenGroup(viewer, &file_id, &group);CHKERRQ(ierr); 807 ierr = PetscObjectGetName((PetscObject)xin,&vecname);CHKERRQ(ierr); 808 ierr = PetscViewerHDF5CheckTimestepping_Internal(viewer, vecname);CHKERRQ(ierr); 809 ierr = PetscViewerHDF5IsTimestepping(viewer, ×tepping);CHKERRQ(ierr); 810 if (timestepping) { 811 ierr = PetscViewerHDF5GetTimestep(viewer, ×tep);CHKERRQ(ierr); 812 } 813 ierr = VecGetDM(xin,&da);CHKERRQ(ierr); 814 dd = (DM_DA*)da->data; 815 ierr = DMGetDimension(da, &dimension);CHKERRQ(ierr); 816 817 /* Open dataset */ 818 PetscStackCallHDF5Return(dset_id,H5Dopen2,(group, vecname, H5P_DEFAULT)); 819 820 /* Retrieve the dataspace for the dataset */ 821 PetscStackCallHDF5Return(filespace,H5Dget_space,(dset_id)); 822 PetscStackCallHDF5Return(rdim,H5Sget_simple_extent_dims,(filespace, dims, NULL)); 823 824 /* Expected dimension for holding the dof's */ 825 #if defined(PETSC_USE_COMPLEX) 826 dofInd = rdim-2; 827 #else 828 dofInd = rdim-1; 829 #endif 830 831 /* The expected number of dimensions, assuming basedimension2 = false */ 832 dim = dimension; 833 if (dd->w > 1) ++dim; 834 if (timestep >= 0) ++dim; 835 #if defined(PETSC_USE_COMPLEX) 836 ++dim; 837 #endif 838 839 /* In this case the input dataset have one extra, unexpected dimension. */ 840 if (rdim == dim+1) { 841 /* In this case the block size unity */ 842 if (dd->w == 1 && dims[dofInd] == 1) dim2 = PETSC_TRUE; 843 844 /* Special error message for the case where dof does not match the input file */ 845 else if (dd->w != (PetscInt) dims[dofInd]) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_FILE_UNEXPECTED, "Number of dofs in file is %D, not %D as expected",(PetscInt)dims[dofInd],dd->w); 846 847 /* Other cases where rdim != dim cannot be handled currently */ 848 } else if (rdim != dim) SETERRQ3(PETSC_COMM_SELF,PETSC_ERR_FILE_UNEXPECTED, "Dimension of array in file is %d, not %d as expected with dof = %D",rdim,dim,dd->w); 849 850 /* Set up the hyperslab size */ 851 dim = 0; 852 if (timestep >= 0) { 853 offset[dim] = timestep; 854 count[dim] = 1; 855 ++dim; 856 } 857 if (dimension == 3) { 858 ierr = PetscHDF5IntCast(dd->zs,offset + dim);CHKERRQ(ierr); 859 ierr = PetscHDF5IntCast(dd->ze - dd->zs,count + dim);CHKERRQ(ierr); 860 ++dim; 861 } 862 if (dimension > 1) { 863 ierr = PetscHDF5IntCast(dd->ys,offset + dim);CHKERRQ(ierr); 864 ierr = PetscHDF5IntCast(dd->ye - dd->ys,count + dim);CHKERRQ(ierr); 865 ++dim; 866 } 867 ierr = PetscHDF5IntCast(dd->xs/dd->w,offset + dim);CHKERRQ(ierr); 868 ierr = PetscHDF5IntCast((dd->xe - dd->xs)/dd->w,count + dim);CHKERRQ(ierr); 869 ++dim; 870 if (dd->w > 1 || dim2) { 871 offset[dim] = 0; 872 ierr = PetscHDF5IntCast(dd->w,count + dim);CHKERRQ(ierr); 873 ++dim; 874 } 875 #if defined(PETSC_USE_COMPLEX) 876 offset[dim] = 0; 877 count[dim] = 2; 878 ++dim; 879 #endif 880 881 /* Create the memory and filespace */ 882 PetscStackCallHDF5Return(memspace,H5Screate_simple,(dim, count, NULL)); 883 PetscStackCallHDF5(H5Sselect_hyperslab,(filespace, H5S_SELECT_SET, offset, NULL, count, NULL)); 884 885 ierr = VecGetArray(xin, &x);CHKERRQ(ierr); 886 PetscStackCallHDF5(H5Dread,(dset_id, scalartype, memspace, filespace, hdf5->dxpl_id, x)); 887 ierr = VecRestoreArray(xin, &x);CHKERRQ(ierr); 888 889 /* Close/release resources */ 890 if (group != file_id) { 891 PetscStackCallHDF5(H5Gclose,(group)); 892 } 893 PetscStackCallHDF5(H5Sclose,(filespace)); 894 PetscStackCallHDF5(H5Sclose,(memspace)); 895 PetscStackCallHDF5(H5Dclose,(dset_id)); 896 PetscFunctionReturn(0); 897 } 898 #endif 899 900 PetscErrorCode VecLoad_Binary_DA(Vec xin, PetscViewer viewer) 901 { 902 DM da; 903 PetscErrorCode ierr; 904 Vec natural; 905 const char *prefix; 906 PetscInt bs; 907 PetscBool flag; 908 DM_DA *dd; 909 #if defined(PETSC_HAVE_MPIIO) 910 PetscBool isMPIIO; 911 #endif 912 913 PetscFunctionBegin; 914 ierr = VecGetDM(xin,&da);CHKERRQ(ierr); 915 dd = (DM_DA*)da->data; 916 #if defined(PETSC_HAVE_MPIIO) 917 ierr = PetscViewerBinaryGetUseMPIIO(viewer,&isMPIIO);CHKERRQ(ierr); 918 if (isMPIIO) { 919 ierr = DMDAArrayMPIIO(da,viewer,xin,PETSC_FALSE);CHKERRQ(ierr); 920 PetscFunctionReturn(0); 921 } 922 #endif 923 924 ierr = PetscObjectGetOptionsPrefix((PetscObject)xin,&prefix);CHKERRQ(ierr); 925 ierr = DMDACreateNaturalVector(da,&natural);CHKERRQ(ierr); 926 ierr = PetscObjectSetName((PetscObject)natural,((PetscObject)xin)->name);CHKERRQ(ierr); 927 ierr = PetscObjectSetOptionsPrefix((PetscObject)natural,prefix);CHKERRQ(ierr); 928 ierr = VecLoad(natural,viewer);CHKERRQ(ierr); 929 ierr = DMDANaturalToGlobalBegin(da,natural,INSERT_VALUES,xin);CHKERRQ(ierr); 930 ierr = DMDANaturalToGlobalEnd(da,natural,INSERT_VALUES,xin);CHKERRQ(ierr); 931 ierr = VecDestroy(&natural);CHKERRQ(ierr); 932 ierr = PetscInfo(xin,"Loading vector from natural ordering into DMDA\n");CHKERRQ(ierr); 933 ierr = PetscOptionsGetInt(NULL,((PetscObject)xin)->prefix,"-vecload_block_size",&bs,&flag);CHKERRQ(ierr); 934 if (flag && bs != dd->w) { 935 ierr = PetscInfo2(xin,"Block size in file %D not equal to DMDA's dof %D\n",bs,dd->w);CHKERRQ(ierr); 936 } 937 PetscFunctionReturn(0); 938 } 939 940 PetscErrorCode VecLoad_Default_DA(Vec xin, PetscViewer viewer) 941 { 942 PetscErrorCode ierr; 943 DM da; 944 PetscBool isbinary; 945 #if defined(PETSC_HAVE_HDF5) 946 PetscBool ishdf5; 947 #endif 948 949 PetscFunctionBegin; 950 ierr = VecGetDM(xin,&da);CHKERRQ(ierr); 951 if (!da) SETERRQ(PetscObjectComm((PetscObject)xin),PETSC_ERR_ARG_WRONG,"Vector not generated from a DMDA"); 952 953 #if defined(PETSC_HAVE_HDF5) 954 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERHDF5,&ishdf5);CHKERRQ(ierr); 955 #endif 956 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERBINARY,&isbinary);CHKERRQ(ierr); 957 958 if (isbinary) { 959 ierr = VecLoad_Binary_DA(xin,viewer);CHKERRQ(ierr); 960 #if defined(PETSC_HAVE_HDF5) 961 } else if (ishdf5) { 962 ierr = VecLoad_HDF5_DA(xin,viewer);CHKERRQ(ierr); 963 #endif 964 } else SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_SUP,"Viewer type %s not supported for vector loading", ((PetscObject)viewer)->type_name); 965 PetscFunctionReturn(0); 966 } 967