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CommDataType.cpp
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1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 // File CommDataType.cpp
4 //
5 // For more information, please see: http://www.nektar.info
6 //
7 // The MIT License
8 //
9 // Copyright (c) 2006 Division of Applied Mathematics, Brown University (USA),
10 // Department of Aeronautics, Imperial College London (UK), and Scientific
11 // Computing and Imaging Institute, University of Utah (USA).
12 //
13 // License for the specific language governing rights and limitations under
14 // Permission is hereby granted, free of charge, to any person obtaining a
15 // copy of this software and associated documentation files (the "Software"),
16 // to deal in the Software without restriction, including without limitation
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21 // The above copyright notice and this permission notice shall be included
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23 //
24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
25 // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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30 // DEALINGS IN THE SOFTWARE.
31 //
32 // Description: Define static members for the different data types
33 //
34 ///////////////////////////////////////////////////////////////////////////////
35 
38 
39 namespace Nektar
40 {
41 namespace LibUtilities
42 {
43 
44 /**
45  * @brief Return the size in bytes of a data type @p dt.
46  *
47  * @param dt Data type
48  *
49  * @return Size of @p dt in bytes.
50  */
52 {
53 #ifdef NEKTAR_USE_MPI
54  int size;
55  MPI_Type_size(dt, &size);
56  return size;
57 #else
58  switch (dt)
59  {
60  case MPI_INT:
61  return sizeof(int);
62  case MPI_UNSIGNED:
63  return sizeof(unsigned);
64  case MPI_LONG:
65  return sizeof(long);
66  case MPI_UNSIGNED_LONG:
67  return sizeof(unsigned long);
68  case MPI_LONG_LONG:
69  return sizeof(long long);
71  return sizeof(unsigned long long);
72  case MPI_FLOAT:
73  return sizeof(float);
74  case MPI_DOUBLE:
75  return sizeof(double);
76  case MPI_LONG_DOUBLE:
77  return sizeof(long double);
78  default:
79  ASSERTL0(false, "Unrecognised datatype!");
80  }
81  return sizeof(int);
82 #endif
83 }
84 
86 {
87  static CommDataType type = MPI_INT;
88  return type;
89 }
90 
92 {
93  static CommDataType type = MPI_UNSIGNED;
94  return type;
95 }
96 
98 {
99  static CommDataType type = MPI_LONG;
100  return type;
101 }
102 
104 {
105  static CommDataType type = MPI_UNSIGNED_LONG;
106  return type;
107 }
108 
110 {
111  static CommDataType type = MPI_LONG_LONG;
112  return type;
113 }
114 
116 {
117  static CommDataType type = MPI_UNSIGNED_LONG_LONG;
118  return type;
119 }
120 
122 {
123  static CommDataType type = MPI_FLOAT;
124  return type;
125 }
126 
128 {
129  static CommDataType type = MPI_DOUBLE;
130  return type;
131 }
132 
134 {
135  static CommDataType type = MPI_LONG_DOUBLE;
136  return type;
137 }
138 
139 }
140 }
#define ASSERTL0(condition, msg)
Definition: ErrorUtil.hpp:198
int CommDataTypeGetSize(CommDataType dt)
Return the size in bytes of a data type dt.