Actual source code: ptype.c
2: /*
3: Provides utility routines for manipulating any type of PETSc object.
4: */
5: #include <petscsys.h>
7: const char *const PetscDataTypes[] = {"UNKNOWN",
8: "DOUBLE","COMPLEX","LONG","SHORT","FLOAT",
9: "CHAR","LOGICAL","ENUM","BOOL","LONGDOUBLE",
10: "OBJECT","FUNCTION","STRING","FP16","STRUCT",
11: "INT","INT64",
12: "PetscDataType","PETSC_",NULL};
14: /*@C
15: PetscDataTypeToMPIDataType - Converts the PETSc name of a datatype to its MPI name.
17: Not collective
19: Input Parameter:
20: . ptype - the PETSc datatype name (for example PETSC_DOUBLE)
22: Output Parameter:
23: . mtype - the MPI datatype (for example MPI_DOUBLE, ...)
25: Level: advanced
27: .seealso: PetscDataType, PetscMPIDataTypeToPetscDataType()
28: @*/
29: PetscErrorCode PetscDataTypeToMPIDataType(PetscDataType ptype,MPI_Datatype *mtype)
30: {
31: if (ptype == PETSC_INT) *mtype = MPIU_INT;
32: else if (ptype == PETSC_DOUBLE) *mtype = MPI_DOUBLE;
33: #if defined(PETSC_HAVE_COMPLEX)
34: #if defined(PETSC_USE_REAL_SINGLE)
35: else if (ptype == PETSC_COMPLEX) *mtype = MPI_C_COMPLEX;
36: #elif defined(PETSC_USE_REAL___FLOAT128)
37: else if (ptype == PETSC_COMPLEX) *mtype = MPIU___COMPLEX128;
38: #else
39: else if (ptype == PETSC_COMPLEX) *mtype = MPI_C_DOUBLE_COMPLEX;
40: #endif
41: #endif
42: else if (ptype == PETSC_LONG) *mtype = MPI_LONG;
43: else if (ptype == PETSC_SHORT) *mtype = MPI_SHORT;
44: else if (ptype == PETSC_ENUM) *mtype = MPI_INT;
45: else if (ptype == PETSC_BOOL) *mtype = MPI_INT;
46: else if (ptype == PETSC_INT64) *mtype = MPIU_INT64;
47: else if (ptype == PETSC_FLOAT) *mtype = MPI_FLOAT;
48: else if (ptype == PETSC_CHAR) *mtype = MPI_CHAR;
49: else if (ptype == PETSC_BIT_LOGICAL) *mtype = MPI_BYTE;
50: #if defined(PETSC_USE_REAL___FLOAT128)
51: else if (ptype == PETSC___FLOAT128) *mtype = MPIU___FLOAT128;
52: #elif defined(PETSC_USE_REAL___FP16)
53: else if (ptype == PETSC___FP16) *mtype = MPIU___FP16;
54: #endif
55: else SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Unknown PETSc datatype");
56: return 0;
57: }
59: /*@C
60: PetscMPIDataTypeToPetscDataType Finds the PETSc name of a datatype from its MPI name
62: Not collective
64: Input Parameter:
65: . mtype - the MPI datatype (for example MPI_DOUBLE, ...)
67: Output Parameter:
68: . ptype - the PETSc datatype name (for example PETSC_DOUBLE)
70: Level: advanced
72: .seealso: PetscDataType, PetscMPIDataTypeToPetscDataType()
73: @*/
74: PetscErrorCode PetscMPIDataTypeToPetscDataType(MPI_Datatype mtype,PetscDataType *ptype)
75: {
76: if (mtype == MPIU_INT) *ptype = PETSC_INT;
77: #if defined(PETSC_USE_64BIT_INDICES)
78: else if (mtype == MPI_INT) *ptype = PETSC_ENUM;
79: #endif
80: else if (mtype == MPIU_INT64) *ptype = PETSC_INT64;
81: else if (mtype == MPI_DOUBLE) *ptype = PETSC_DOUBLE;
82: #if defined(PETSC_HAVE_COMPLEX)
83: #if defined(PETSC_USE_REAL_SINGLE)
84: else if (mtype == MPI_C_COMPLEX) *ptype = PETSC_COMPLEX;
85: #elif defined(PETSC_USE_REAL___FLOAT128)
86: else if (mtype == MPIU___COMPLEX128) *ptype = PETSC_COMPLEX;
87: #else
88: else if (mtype == MPI_C_DOUBLE_COMPLEX) *ptype = PETSC_COMPLEX;
89: #endif
90: #endif
91: else if (mtype == MPI_LONG) *ptype = PETSC_LONG;
92: else if (mtype == MPI_SHORT) *ptype = PETSC_SHORT;
93: else if (mtype == MPI_FLOAT) *ptype = PETSC_FLOAT;
94: else if (mtype == MPI_CHAR) *ptype = PETSC_CHAR;
95: #if defined(PETSC_USE_REAL___FLOAT128)
96: else if (mtype == MPIU___FLOAT128) *ptype = PETSC___FLOAT128;
97: #elif defined(PETSC_USE_REAL___FP16)
98: else if (mtype == MPIU___FP16) *ptype = PETSC___FP16;
99: #endif
100: else SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"Unhandled MPI datatype");
101: return 0;
102: }
104: typedef enum {PETSC_INT_SIZE = sizeof(PetscInt),
105: PETSC_DOUBLE_SIZE = sizeof(double),
106: #if defined(PETSC_HAVE_COMPLEX)
107: PETSC_COMPLEX_SIZE = sizeof(PetscComplex),
108: #else
109: PETSC_COMPLEX_SIZE = 2*sizeof(PetscReal),
110: #endif
111: PETSC_LONG_SIZE = sizeof(long),
112: PETSC_SHORT_SIZE = sizeof(short),
113: PETSC_FLOAT_SIZE = sizeof(float),
114: PETSC_CHAR_SIZE = sizeof(char),
115: PETSC_ENUM_SIZE = sizeof(PetscEnum),
116: PETSC_BOOL_SIZE = sizeof(PetscBool),
117: PETSC_INT64_SIZE = sizeof(PetscInt64),
118: PETSC_BIT_LOGICAL_SIZE = sizeof(char)
119: #if defined(PETSC_USE_REAL___FLOAT128)
120: ,PETSC___FLOAT128_SIZE = sizeof(__float128)
121: #elif defined(PETSC_USE_REAL___FP16)
122: ,PETSC___FP16_SIZE = sizeof(__fp16)
123: #endif
124: } PetscDataTypeSize;
126: /*@C
127: PetscDataTypeGetSize - Gets the size (in bytes) of a PETSc datatype
129: Not collective
131: Input Parameter:
132: . ptype - the PETSc datatype name (for example PETSC_DOUBLE)
134: Output Parameter:
135: . size - the size in bytes (for example the size of PETSC_DOUBLE is 8)
137: Level: advanced
139: .seealso: PetscDataType, PetscDataTypeToMPIDataType()
140: @*/
141: PetscErrorCode PetscDataTypeGetSize(PetscDataType ptype,size_t *size)
142: {
143: if ((int) ptype < 0) *size = -(int)ptype;
144: else if (ptype == PETSC_INT) *size = PETSC_INT_SIZE;
145: else if (ptype == PETSC_DOUBLE) *size = PETSC_DOUBLE_SIZE;
146: else if (ptype == PETSC_COMPLEX) *size = PETSC_COMPLEX_SIZE;
147: else if (ptype == PETSC_LONG) *size = PETSC_LONG_SIZE;
148: else if (ptype == PETSC_SHORT) *size = PETSC_SHORT_SIZE;
149: else if (ptype == PETSC_FLOAT) *size = PETSC_FLOAT_SIZE;
150: else if (ptype == PETSC_CHAR) *size = PETSC_CHAR_SIZE;
151: else if (ptype == PETSC_ENUM) *size = PETSC_ENUM_SIZE;
152: else if (ptype == PETSC_BOOL) *size = PETSC_BOOL_SIZE;
153: else if (ptype == PETSC_INT64) *size = PETSC_INT64_SIZE;
154: else if (ptype == PETSC_BIT_LOGICAL) *size = PETSC_BIT_LOGICAL_SIZE;
155: #if defined(PETSC_USE_REAL___FLOAT128)
156: else if (ptype == PETSC___FLOAT128) *size = PETSC___FLOAT128_SIZE;
157: #elif defined(PETSC_USE_REAL___FP16)
158: else if (ptype == PETSC___FP16) *size = PETSC___FP16_SIZE;
159: #endif
160: else SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Unknown PETSc datatype");
161: return 0;
162: }
164: /*@C
165: PetscDataTypeFromString - Gets the enum value of a PETSc datatype represented as a string
167: Not collective
169: Input Parameter:
170: . name - the PETSc datatype name (for example, DOUBLE or real or Scalar)
172: Output Parameters:
173: + ptype - the enum value
174: - found - the string matches one of the data types
176: Level: advanced
178: .seealso: PetscDataType, PetscDataTypeToMPIDataType(), PetscDataTypeGetSize()
179: @*/
180: PetscErrorCode PetscDataTypeFromString(const char*name, PetscDataType *ptype,PetscBool *found)
181: {
182: PetscEnumFind(PetscDataTypes,name,(PetscEnum*)ptype,found);
183: if (!*found) {
184: char formatted[16];
186: PetscStrncpy(formatted,name,16);
187: PetscStrtolower(formatted);
188: PetscStrcmp(formatted,"scalar",found);
189: if (*found) {
190: *ptype = PETSC_SCALAR;
191: } else {
192: PetscStrcmp(formatted,"real",found);
193: if (*found) {
194: *ptype = PETSC_REAL;
195: }
196: }
197: }
198: return 0;
199: }