1 2 #include <petsc-private/petscimpl.h> /*I "petscsys.h" I*/ 3 #include <petscviewer.h> 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, function does nothing if the viewer is not PETSCVIEWERASCII type 43 44 Level: developer 45 46 Notes: If the viewer format is PETSC_VIEWER_ASCII_MATLAB then the information is printed after a % symbol 47 so that MATLAB will treat it as a comment. 48 49 .seealso: PetscObjectSetName(), PetscObjectName() 50 51 @*/ 52 PetscErrorCode PetscObjectPrintClassNamePrefixType(PetscObject obj,PetscViewer viewer) 53 { 54 PetscErrorCode ierr; 55 MPI_Comm comm; 56 PetscMPIInt size; 57 PetscViewerFormat format; 58 PetscBool flg; 59 60 PetscFunctionBegin; 61 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERASCII,&flg);CHKERRQ(ierr); 62 if (!flg) PetscFunctionReturn(0); 63 64 ierr = PetscViewerGetFormat(viewer,&format);CHKERRQ(ierr); 65 if (format == PETSC_VIEWER_ASCII_MATLAB) {ierr = PetscViewerASCIIPrintf(viewer,"%%");CHKERRQ(ierr);} 66 ierr = PetscViewerASCIIPrintf(viewer,"%s Object:",obj->class_name);CHKERRQ(ierr); 67 if (obj->name) { 68 ierr = PetscViewerASCIIPrintf(viewer,"%s",obj->name);CHKERRQ(ierr); 69 } 70 if (obj->prefix) { 71 ierr = PetscViewerASCIIPrintf(viewer,"(%s)",obj->prefix);CHKERRQ(ierr); 72 } 73 ierr = PetscObjectGetComm(obj,&comm);CHKERRQ(ierr); 74 ierr = MPI_Comm_size(comm,&size);CHKERRQ(ierr); 75 ierr = PetscViewerASCIIPrintf(viewer," %d MPI processes\n",size);CHKERRQ(ierr); 76 if (format == PETSC_VIEWER_ASCII_MATLAB) {ierr = PetscViewerASCIIPrintf(viewer,"%%");CHKERRQ(ierr);} 77 if (obj->type_name) { 78 ierr = PetscViewerASCIIPrintf(viewer," type: %s\n",obj->type_name);CHKERRQ(ierr); 79 } else { 80 ierr = PetscViewerASCIIPrintf(viewer," type not yet set\n");CHKERRQ(ierr); 81 } 82 PetscFunctionReturn(0); 83 } 84 85 #undef __FUNCT__ 86 #define __FUNCT__ "PetscObjectName" 87 /*@C 88 PetscObjectName - Gives an object a name if it does not have one 89 90 Collective 91 92 Input Parameters: 93 . obj - the Petsc variable 94 Thus must be cast with a (PetscObject), for example, 95 PetscObjectName((PetscObject)mat,name); 96 97 Level: developer 98 99 Concepts: object name^setting default 100 101 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. 102 Use PetscObjectSetName() to set the name of an object to what you want. The SAWs viewer requires that no two published objects 103 share the same name. 104 105 Developer Note: this needs to generate the exact same string on all ranks that share the object. The current algorithm may not always work. 106 107 108 109 .seealso: PetscObjectGetName(), PetscObjectSetName() 110 @*/ 111 PetscErrorCode PetscObjectName(PetscObject obj) 112 { 113 PetscErrorCode ierr; 114 PetscCommCounter *counter; 115 PetscMPIInt flg; 116 char name[64]; 117 118 PetscFunctionBegin; 119 PetscValidHeader(obj,1); 120 if (!obj->name) { 121 union {MPI_Comm comm; void *ptr; char raw[sizeof(MPI_Comm)]; } ucomm; 122 ierr = MPI_Attr_get(obj->comm,Petsc_Counter_keyval,(void*)&counter,&flg);CHKERRQ(ierr); 123 if (!flg) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_CORRUPT,"Bad MPI communicator supplied; must be a PETSc communicator"); 124 ucomm.ptr = NULL; 125 ucomm.comm = obj->comm; 126 ierr = MPI_Bcast(ucomm.raw,sizeof(MPI_Comm),MPI_BYTE,0,obj->comm);CHKERRQ(ierr); 127 /* If the union has extra bytes, their value is implementation-dependent, but they will normally be what we set last 128 * in 'ucomm.ptr = NULL'. This output is always implementation-defined (and varies from run to run) so the union 129 * abuse acceptable. */ 130 ierr = PetscSNPrintf(name,64,"%s_%p_%D",obj->class_name,ucomm.ptr,counter->namecount++);CHKERRQ(ierr); 131 ierr = PetscStrallocpy(name,&obj->name);CHKERRQ(ierr); 132 } 133 PetscFunctionReturn(0); 134 } 135 136 137 138 #undef __FUNCT__ 139 #define __FUNCT__ "PetscObjectChangeTypeName" 140 PetscErrorCode PetscObjectChangeTypeName(PetscObject obj,const char type_name[]) 141 { 142 PetscErrorCode ierr; 143 144 PetscFunctionBegin; 145 PetscValidHeader(obj,1); 146 ierr = PetscFree(obj->type_name);CHKERRQ(ierr); 147 ierr = PetscStrallocpy(type_name,&obj->type_name);CHKERRQ(ierr); 148 /* Clear all the old subtype callbacks so they can't accidentally be called (shouldn't happen anyway) */ 149 ierr = PetscMemzero(obj->fortrancallback[PETSC_FORTRAN_CALLBACK_SUBTYPE],obj->num_fortrancallback[PETSC_FORTRAN_CALLBACK_SUBTYPE]*sizeof(PetscFortranCallback));CHKERRQ(ierr); 150 PetscFunctionReturn(0); 151 } 152 153