1 #include <petsc/private/glvisviewerimpl.h> 2 #include <petsc/private/glvisvecimpl.h> 3 4 static PetscErrorCode PetscViewerGLVisVecInfoDestroy_Private(void **ptr) 5 { 6 PetscViewerGLVisVecInfo info = (PetscViewerGLVisVecInfo)*ptr; 7 8 PetscFunctionBeginUser; 9 PetscCall(PetscFree(info->fec_type)); 10 PetscCall(PetscFree(info)); 11 PetscFunctionReturn(PETSC_SUCCESS); 12 } 13 14 /* the main function to visualize vectors using GLVis */ 15 PetscErrorCode VecView_GLVis(Vec U, PetscViewer viewer) 16 { 17 PetscErrorCode (*g2lfields)(PetscObject, PetscInt, PetscObject[], void *); 18 Vec *Ufield; 19 const char **fec_type; 20 PetscViewerGLVisStatus sockstatus; 21 PetscViewerGLVisType socktype; 22 void *userctx; 23 PetscInt i, nfields, *spacedim; 24 PetscBool pause = PETSC_FALSE; 25 26 PetscFunctionBegin; 27 PetscCall(PetscViewerGLVisGetStatus_Internal(viewer, &sockstatus)); 28 if (sockstatus == PETSCVIEWERGLVIS_DISABLED) PetscFunctionReturn(PETSC_SUCCESS); 29 /* if the user did not customize the viewer through the API, we need extra data that can be attached to the Vec */ 30 PetscCall(PetscViewerGLVisGetFields_Internal(viewer, &nfields, NULL, NULL, NULL, NULL, NULL)); 31 if (!nfields) { 32 PetscObject dm; 33 34 PetscCall(PetscObjectQuery((PetscObject)U, "__PETSc_dm", &dm)); 35 if (dm) { 36 PetscCall(PetscViewerGLVisSetDM_Internal(viewer, dm)); 37 } else SETERRQ(PetscObjectComm((PetscObject)U), PETSC_ERR_SUP, "You need to provide a DM or use PetscViewerGLVisSetFields()"); 38 } 39 PetscCall(PetscViewerGLVisGetFields_Internal(viewer, &nfields, &fec_type, &spacedim, &g2lfields, (PetscObject **)&Ufield, &userctx)); 40 if (!nfields) PetscFunctionReturn(PETSC_SUCCESS); 41 42 PetscCall(PetscViewerGLVisGetType_Internal(viewer, &socktype)); 43 44 for (i = 0; i < nfields; i++) { 45 PetscObject fdm; 46 PetscContainer container; 47 48 /* attach visualization info to the vector */ 49 PetscCall(PetscObjectQuery((PetscObject)Ufield[i], "_glvis_info_container", (PetscObject *)&container)); 50 if (!container) { 51 PetscViewerGLVisVecInfo info; 52 53 PetscCall(PetscNew(&info)); 54 PetscCall(PetscStrallocpy(fec_type[i], &info->fec_type)); 55 PetscCall(PetscObjectContainerCompose((PetscObject)Ufield[i], "_glvis_info_container", info, PetscViewerGLVisVecInfoDestroy_Private)); 56 } 57 /* attach the mesh to the viz vectors */ 58 PetscCall(PetscObjectQuery((PetscObject)Ufield[i], "__PETSc_dm", &fdm)); 59 if (!fdm) { 60 PetscObject dm; 61 62 PetscCall(PetscViewerGLVisGetDM_Internal(viewer, &dm)); 63 if (!dm) PetscCall(PetscObjectQuery((PetscObject)U, "__PETSc_dm", &dm)); 64 PetscCheck(dm, PetscObjectComm((PetscObject)U), PETSC_ERR_SUP, "Mesh not present"); 65 PetscCall(PetscObjectCompose((PetscObject)Ufield[i], "__PETSc_dm", dm)); 66 } 67 } 68 69 /* user-provided sampling */ 70 if (g2lfields) { 71 PetscCall((*g2lfields)((PetscObject)U, nfields, (PetscObject *)Ufield, userctx)); 72 } else { 73 PetscCheck(nfields <= 1, PetscObjectComm((PetscObject)U), PETSC_ERR_SUP, "Don't know how to sample %" PetscInt_FMT " fields", nfields); 74 PetscCall(VecCopy(U, Ufield[0])); 75 } 76 77 /* TODO callback to user routine to disable/enable subdomains */ 78 for (i = 0; i < nfields; i++) { 79 PetscObject dm; 80 PetscViewer view; 81 82 PetscCall(PetscObjectQuery((PetscObject)Ufield[i], "__PETSc_dm", &dm)); 83 PetscCall(PetscViewerGLVisGetWindow_Internal(viewer, i, &view)); 84 if (!view) continue; /* socket window has been closed */ 85 if (socktype == PETSC_VIEWER_GLVIS_SOCKET) { 86 PetscMPIInt size, rank; 87 const char *name; 88 89 PetscCallMPI(MPI_Comm_size(PetscObjectComm(dm), &size)); 90 PetscCallMPI(MPI_Comm_rank(PetscObjectComm(dm), &rank)); 91 PetscCall(PetscObjectGetName((PetscObject)Ufield[i], &name)); 92 93 PetscCall(PetscGLVisCollectiveBegin(PetscObjectComm(dm), &view)); 94 PetscCall(PetscViewerASCIIPrintf(view, "parallel %d %d\nsolution\n", size, rank)); 95 PetscCall(PetscObjectView(dm, view)); 96 PetscCall(VecView(Ufield[i], view)); 97 PetscCall(PetscViewerGLVisInitWindow_Internal(view, PETSC_FALSE, spacedim[i], name)); 98 PetscCall(PetscGLVisCollectiveEnd(PetscObjectComm(dm), &view)); 99 if (view) pause = PETSC_TRUE; /* at least one window is connected */ 100 } else { 101 PetscCall(PetscObjectView(dm, view)); 102 PetscCall(VecView(Ufield[i], view)); 103 } 104 PetscCall(PetscViewerGLVisRestoreWindow_Internal(viewer, i, &view)); 105 } 106 if (pause) PetscCall(PetscViewerGLVisPause_Internal(viewer)); 107 PetscFunctionReturn(PETSC_SUCCESS); 108 } 109