1 2 #include <petscsys.h> /*I "petscsys.h" I*/ 3 4 #undef __FUNCT__ 5 #define __FUNCT__ "PetscObjectSetName" 6 /*@C 7 PetscObjectSetName - Sets a string name associated with a PETSc object. 8 9 Not Collective 10 11 Input Parameters: 12 + obj - the Petsc variable 13 Thus must be cast with a (PetscObject), for example, 14 PetscObjectSetName((PetscObject)mat,name); 15 - name - the name to give obj 16 17 Level: advanced 18 19 Concepts: object name^setting 20 21 .seealso: PetscObjectGetName() 22 @*/ 23 PetscErrorCode PetscObjectSetName(PetscObject obj,const char name[]) 24 { 25 PetscErrorCode ierr; 26 27 PetscFunctionBegin; 28 PetscValidHeader(obj,1); 29 ierr = PetscFree(obj->name);CHKERRQ(ierr); 30 ierr = PetscStrallocpy(name,&obj->name);CHKERRQ(ierr); 31 PetscFunctionReturn(0); 32 } 33 34 #undef __FUNCT__ 35 #define __FUNCT__ "PetscObjectPrintClassNamePrefixType" 36 /*@C 37 PetscObjectPrintTypeNamePrefix - used in the XXXView() methods to display information about the class, name, prefix and type of an object 38 39 Input Parameters: 40 + obj - the PETSc object 41 . viewer - ASCII viewer where the information is printed 42 - string - for example "Matrix Object" 43 44 Level: developer 45 46 .seealso: PetscObjectSetName(), PetscObjectName() 47 48 @*/ 49 PetscErrorCode PetscObjectPrintClassNamePrefixType(PetscObject obj,PetscViewer viewer,const char string[]) 50 { 51 PetscErrorCode ierr; 52 MPI_Comm comm; 53 PetscMPIInt size; 54 55 PetscFunctionBegin; 56 ierr = PetscViewerASCIIPrintf(viewer,"%s:",string);CHKERRQ(ierr); 57 if (obj->name) { 58 ierr = PetscViewerASCIIPrintf(viewer,"%s",obj->name);CHKERRQ(ierr); 59 } 60 if (obj->prefix) { 61 ierr = PetscViewerASCIIPrintf(viewer,"(%s)",obj->prefix);CHKERRQ(ierr); 62 } 63 ierr = PetscObjectGetComm(obj,&comm);CHKERRQ(ierr); 64 ierr = MPI_Comm_size(comm,&size);CHKERRQ(ierr); 65 ierr = PetscViewerASCIIPrintf(viewer," %d MPI processes",size);CHKERRQ(ierr); 66 ierr = PetscViewerASCIIPrintf(viewer,"\n");CHKERRQ(ierr); 67 if (obj->type_name) { 68 ierr = PetscViewerASCIIPrintf(viewer," type: %s\n",obj->type_name);CHKERRQ(ierr); 69 } else { 70 ierr = PetscViewerASCIIPrintf(viewer," type not yet set\n");CHKERRQ(ierr); 71 } 72 PetscFunctionReturn(0); 73 } 74 75 #undef __FUNCT__ 76 #define __FUNCT__ "PetscObjectName" 77 /*@C 78 PetscObjectName - Gives an object a name if it does not have one 79 80 Not Collective 81 82 Input Parameters: 83 . obj - the Petsc variable 84 Thus must be cast with a (PetscObject), for example, 85 PetscObjectName((PetscObject)mat,name); 86 87 Level: developer 88 89 Concepts: object name^setting default 90 91 Notes: This is used in a small number of places when an object NEEDS a name, for example when it is saved to MATLAB with that variable name. 92 Use PetscObjectSetName() to set the name of an object to what you want. The AMS viewer requires that no two published objects 93 share the same name. 94 95 Developer Note: this needs to generate the exact same string on all ranks that share the object. The current algorithm may not always work. 96 97 98 99 .seealso: PetscObjectGetName(), PetscObjectSetName() 100 @*/ 101 PetscErrorCode PetscObjectName(PetscObject obj) 102 { 103 PetscErrorCode ierr; 104 PetscCommCounter *counter; 105 PetscMPIInt flg; 106 char name[64]; 107 108 PetscFunctionBegin; 109 PetscValidHeader(obj,1); 110 if (!obj->name) { 111 void *commp = 0; 112 ierr = MPI_Attr_get(obj->comm,Petsc_Counter_keyval,(void*)&counter,&flg);CHKERRQ(ierr); 113 if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_CORRUPT,"Bad MPI communicator supplied; must be a PETSc communicator"); 114 ierr = PetscMemcpy(&commp,&obj->comm,PetscMin(sizeof(commp),sizeof(obj->comm)));CHKERRQ(ierr); 115 ierr = MPI_Bcast(&commp,1,MPIU_SIZE_T,0,obj->comm);CHKERRQ(ierr); 116 ierr = PetscSNPrintf(name,64,"%s_%p_%D",obj->class_name,commp,counter->namecount++);CHKERRQ(ierr); 117 ierr = PetscStrallocpy(name,&obj->name);CHKERRQ(ierr); 118 } 119 PetscFunctionReturn(0); 120 } 121 122 123 124 #undef __FUNCT__ 125 #define __FUNCT__ "PetscObjectChangeTypeName" 126 PetscErrorCode PetscObjectChangeTypeName(PetscObject obj,const char type_name[]) 127 { 128 PetscErrorCode ierr; 129 130 PetscFunctionBegin; 131 PetscValidHeader(obj,1); 132 ierr = PetscObjectTakeAccess(obj);CHKERRQ(ierr); 133 ierr = PetscFree(obj->type_name);CHKERRQ(ierr); 134 ierr = PetscStrallocpy(type_name,&obj->type_name);CHKERRQ(ierr); 135 ierr = PetscObjectGrantAccess(obj);CHKERRQ(ierr); 136 PetscFunctionReturn(0); 137 } 138 139