1 2 /* 3 Provides utility routines for manipulating any type of PETSc object. 4 */ 5 #include <petscsys.h> /*I "petscsys.h" I*/ 6 7 /*@C 8 PetscDataTypeToMPIDataType - Converts the PETSc name of a datatype to its MPI name. 9 10 Not collective 11 12 Input Parameter: 13 . ptype - the PETSc datatype name (for example PETSC_DOUBLE) 14 15 Output Parameter: 16 . mtype - the MPI datatype (for example MPI_DOUBLE, ...) 17 18 Level: advanced 19 20 .seealso: PetscDataType, PetscMPIDataTypeToPetscDataType() 21 @*/ 22 PetscErrorCode PetscDataTypeToMPIDataType(PetscDataType ptype,MPI_Datatype *mtype) 23 { 24 PetscFunctionBegin; 25 if (ptype == PETSC_INT) *mtype = MPIU_INT; 26 else if (ptype == PETSC_DOUBLE) *mtype = MPI_DOUBLE; 27 #if defined(PETSC_USE_COMPLEX) 28 #if defined(PETSC_USE_REAL_SINGLE) 29 else if (ptype == PETSC_COMPLEX) *mtype = MPIU_C_COMPLEX; 30 #elif defined(PETSC_USE_REAL___FLOAT128) 31 else if (ptype == PETSC_COMPLEX) *mtype = MPIU___COMPLEX128; 32 #else 33 else if (ptype == PETSC_COMPLEX) *mtype = MPIU_C_DOUBLE_COMPLEX; 34 #endif 35 #endif 36 else if (ptype == PETSC_LONG) *mtype = MPI_LONG; 37 else if (ptype == PETSC_SHORT) *mtype = MPI_SHORT; 38 else if (ptype == PETSC_ENUM) *mtype = MPI_INT; 39 else if (ptype == PETSC_BOOL) *mtype = MPI_INT; 40 else if (ptype == PETSC_FLOAT) *mtype = MPI_FLOAT; 41 else if (ptype == PETSC_CHAR) *mtype = MPI_CHAR; 42 else if (ptype == PETSC_BIT_LOGICAL) *mtype = MPI_BYTE; 43 #if defined(PETSC_USE_REAL___FLOAT128) 44 else if (ptype == PETSC___FLOAT128) *mtype = MPIU___FLOAT128; 45 #elif defined(PETSC_USE_REAL___FP16) 46 else if (ptype == PETSC___FP16) *mtype = MPIU___FP16; 47 #endif 48 else SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Unknown PETSc datatype"); 49 PetscFunctionReturn(0); 50 } 51 52 /*@C 53 PetscMPIDataTypeToPetscDataType Finds the PETSc name of a datatype from its MPI name 54 55 Not collective 56 57 Input Parameter: 58 . mtype - the MPI datatype (for example MPI_DOUBLE, ...) 59 60 Output Parameter: 61 . ptype - the PETSc datatype name (for example PETSC_DOUBLE) 62 63 Level: advanced 64 65 .seealso: PetscDataType, PetscMPIDataTypeToPetscDataType() 66 @*/ 67 PetscErrorCode PetscMPIDataTypeToPetscDataType(MPI_Datatype mtype,PetscDataType *ptype) 68 { 69 PetscFunctionBegin; 70 if (mtype == MPIU_INT) *ptype = PETSC_INT; 71 else if (mtype == MPI_INT) *ptype = PETSC_INT; 72 else if (mtype == MPI_DOUBLE) *ptype = PETSC_DOUBLE; 73 #if defined(PETSC_USE_COMPLEX) 74 #if defined(PETSC_USE_REAL_SINGLE) 75 else if (mtype == MPIU_C_COMPLEX) *ptype = PETSC_COMPLEX; 76 #elif defined(PETSC_USE_REAL___FLOAT128) 77 else if (mtype == MPIU___COMPLEX128) *ptype = PETSC_COMPLEX; 78 #else 79 else if (mtype == MPIU_C_DOUBLE_COMPLEX) *ptype = PETSC_COMPLEX; 80 #endif 81 #endif 82 else if (mtype == MPI_LONG) *ptype = PETSC_LONG; 83 else if (mtype == MPI_SHORT) *ptype = PETSC_SHORT; 84 else if (mtype == MPI_FLOAT) *ptype = PETSC_FLOAT; 85 else if (mtype == MPI_CHAR) *ptype = PETSC_CHAR; 86 #if defined(PETSC_USE_REAL___FLOAT128) 87 else if (mtype == MPIU___FLOAT128) *ptype = PETSC___FLOAT128; 88 #elif defined(PETSC_USE_REAL___FP16) 89 else if (mtype == MPIU___FP16) *ptype = PETSC___FP16; 90 #endif 91 else SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"Unhandled MPI datatype"); 92 PetscFunctionReturn(0); 93 } 94 95 typedef enum {PETSC_INT_SIZE = sizeof(PetscInt), 96 PETSC_DOUBLE_SIZE = sizeof(double), 97 PETSC_COMPLEX_SIZE = sizeof(PetscScalar), 98 PETSC_LONG_SIZE = sizeof(long), 99 PETSC_SHORT_SIZE = sizeof(short), 100 PETSC_FLOAT_SIZE = sizeof(float), 101 PETSC_CHAR_SIZE = sizeof(char), 102 PETSC_BIT_LOGICAL_SIZE = sizeof(char), 103 PETSC_ENUM_SIZE = sizeof(PetscBool), 104 PETSC_BOOL_SIZE = sizeof(PetscBool) 105 #if defined(PETSC_USE_REAL___FLOAT128) 106 ,PETSC___FLOAT128_SIZE = sizeof(__float128) 107 #elif defined(PETSC_USE_REAL___FP16) 108 ,PETSC___FP16_SIZE = sizeof(__fp16) 109 #endif 110 } PetscDataTypeSize; 111 112 /*@C 113 PetscDataTypeGetSize - Gets the size (in bytes) of a PETSc datatype 114 115 Not collective 116 117 Input Parameter: 118 . ptype - the PETSc datatype name (for example PETSC_DOUBLE) 119 120 Output Parameter: 121 . size - the size in bytes (for example the size of PETSC_DOUBLE is 8) 122 123 Level: advanced 124 125 .seealso: PetscDataType, PetscDataTypeToMPIDataType() 126 @*/ 127 PetscErrorCode PetscDataTypeGetSize(PetscDataType ptype,size_t *size) 128 { 129 PetscFunctionBegin; 130 if ((int) ptype < 0) { 131 *size = -(int) ptype; 132 PetscFunctionReturn(0); 133 } 134 135 if (ptype == PETSC_INT) *size = PETSC_INT_SIZE; 136 else if (ptype == PETSC_DOUBLE) *size = PETSC_DOUBLE_SIZE; 137 #if defined(PETSC_USE_COMPLEX) 138 else if (ptype == PETSC_COMPLEX) *size = PETSC_COMPLEX_SIZE; 139 #endif 140 else if (ptype == PETSC_LONG) *size = PETSC_LONG_SIZE; 141 else if (ptype == PETSC_SHORT) *size = PETSC_SHORT_SIZE; 142 else if (ptype == PETSC_FLOAT) *size = PETSC_FLOAT_SIZE; 143 else if (ptype == PETSC_CHAR) *size = PETSC_CHAR_SIZE; 144 else if (ptype == PETSC_ENUM) *size = PETSC_ENUM_SIZE; 145 else if (ptype == PETSC_BIT_LOGICAL) *size = PETSC_BIT_LOGICAL_SIZE; 146 else if (ptype == PETSC_BOOL) *size = PETSC_BOOL_SIZE; 147 #if defined(PETSC_USE_REAL___FLOAT128) 148 else if (ptype == PETSC___FLOAT128) *size = PETSC___FLOAT128_SIZE; 149 #elif defined(PETSC_USE_REAL___FP16) 150 else if (ptype == PETSC___FP16) *size = PETSC___FP16_SIZE; 151 #endif 152 else SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Unknown PETSc datatype"); 153 PetscFunctionReturn(0); 154 } 155 156 /*@ 157 PetscDataTypeFromString - Gets the enum value of a PETSc datatype represented as a string 158 159 Not collective 160 161 Input Parameter: 162 . name - the PETSc datatype name (for example, DOUBLE or real or Scalar) 163 164 Output Parameter: 165 + ptype - the enum value 166 - found - the string matches one of the data types 167 168 Level: advanced 169 170 .seealso: PetscDataType, PetscDataTypeToMPIDataType(), PetscDataTypeGetSize() 171 @*/ 172 PetscErrorCode PetscDataTypeFromString(const char*name, PetscDataType *ptype,PetscBool *found) 173 { 174 PetscErrorCode ierr; 175 176 PetscFunctionBegin; 177 ierr = PetscEnumFind(PetscDataTypes,name,(PetscEnum*)ptype,found);CHKERRQ(ierr); 178 if (!*found) { 179 char formatted[16]; 180 181 ierr = PetscStrncpy(formatted,name,16);CHKERRQ(ierr); 182 ierr = PetscStrtolower(formatted);CHKERRQ(ierr); 183 ierr = PetscStrcmp(formatted,"scalar",found);CHKERRQ(ierr); 184 if (*found) { 185 *ptype = PETSC_SCALAR; 186 } else { 187 ierr = PetscStrcmp(formatted,"real",found);CHKERRQ(ierr); 188 if (*found) { 189 *ptype = PETSC_REAL; 190 } 191 } 192 } 193 PetscFunctionReturn(0); 194 } 195