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