/[escript]/trunk/esysUtils/src/maths.h
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Contents of /trunk/esysUtils/src/maths.h

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Revision 2554 - (show annotations)
Fri Jul 24 05:38:54 2009 UTC (10 years, 4 months ago) by gross
Original Path: trunk/paso/src/Common.h
File MIME type: text/plain
File size: 8001 byte(s)
bug with MKL call fixed.
1
2 /*******************************************************
3 *
4 * Copyright (c) 2003-2009 by University of Queensland
5 * Earth Systems Science Computational Center (ESSCC)
6 * http://www.uq.edu.au/esscc
7 *
8 * Primary Business: Queensland, Australia
9 * Licensed under the Open Software License version 3.0
10 * http://www.opensource.org/licenses/osl-3.0.php
11 *
12 *******************************************************/
13
14
15 #ifndef INC_PASO_COMMON
16 #define INC_PASO_COMMON
17
18 /**************************************************************/
19
20 /* Finley finite element solver: common include file */
21
22 /**************************************************************/
23
24 /* Copyrights by ACcESS Australia, 2003 */
25 /* Version: $Id$ */
26
27 /**************************************************************/
28
29 /* some system values */
30 /* FIXME: This is not satisfactory. */
31 /* _ECC, __INTEL_COMPILER, and other */
32 /* intel compiler pre-defines need to be handled */
33 /* (__ICL, __ICC come to mind) */
34 #if defined(_WIN32) && defined(__INTEL_COMPILER)
35 #include <mathimf.h>
36 #else
37 #include <math.h>
38 #endif
39
40 #if (defined __OPENMP)
41 #include <omp.h>
42 #endif
43
44 #include <float.h>
45 #include <stdio.h>
46 #include <limits.h>
47 #include <stdlib.h>
48 #include <string.h>
49
50 #define LenString_MAX FILENAME_MAX*2
51 #define LenErrorMsg_MAX LenString_MAX
52
53 /* on some arcitectures it could be a good idea to use long rather than int */
54 /* this has not really been tested */
55
56 typedef int dim_t;
57 typedef int index_t;
58 typedef int bool_t;
59 typedef int type_t;
60 typedef int err_t;
61
62 #define INDEX_T_MAX INT_MAX
63 #define INDEX_T_MIN -INT_MAX
64 #define EPSILON DBL_EPSILON
65 #define LARGE_POSITIVE_FLOAT DBL_MAX
66 #define SMALL_NEGATIVE_FLOAT -DBL_MAX
67
68 /**************************************************************/
69
70 /* some useful functions: */
71
72 #define FALSE 0
73 #define TRUE 1
74 #define UNKNOWN -1
75 #define DBLE(_x_) (double)(_x_)
76 #define INDEX1(_X1_) (_X1_)
77 #define INDEX2(_X1_,_X2_,_N1_) ((_X1_)+(_N1_)*(_X2_))
78 #define INDEX3(_X1_,_X2_,_X3_,_N1_,_N2_) ((_X1_)+(_N1_)*INDEX2(_X2_,_X3_,_N2_))
79 #define INDEX4(_X1_,_X2_,_X3_,_X4_,_N1_,_N2_,_N3_) ((_X1_)+(_N1_)*INDEX3(_X2_,_X3_,_X4_,_N2_,_N3_))
80 #define INDEX5(_X1_,_X2_,_X3_,_X4_,_X5_,_N1_,_N2_,_N3_,_N4_) ((_X1_)+(_N1_)*INDEX4(_X2_,_X3_,_X4_,_X5_,_N2_,_N3_,_N4_))
81 #define INDEX6(_X1_,_X2_,_X3_,_X4_,_X5_,_X6_,_N1_,_N2_,_N3_,_N4_,_N5_) ((_X1_)+(_N1_)*INDEX5(_X2_,_X3_,_X4_,_X5_,_X6_,_N2_,_N3_,_N4_,_N5_))
82
83 #define MAX(_arg1_,_arg2_) ((_arg1_)>(_arg2_) ? (_arg1_) : (_arg2_))
84 #define MAX3(_arg1_,_arg2_,_arg3_) MAX(_arg1_,MAX(_arg2_,_arg3_))
85 #define MIN(_arg1_,_arg2_) ((_arg1_)>(_arg2_) ? (_arg2_) : (_arg1_))
86 #define MIN3(_arg1_,_arg2_,_arg3_) MIN(_arg1_,MIN(_arg2_,_arg3_))
87 #define ABS(_arg_) MAX((_arg_),-(_arg_))
88 #define SIGN(_arg_) ((_arg_)>0 ? 1 : ((_arg_)<0 ? -1 : 0 ))
89 #define SWAP(_a0_,_a1_,_type_) { \
90 _type_ s; \
91 s=(_a0_); \
92 _a0_= (_a1_); \
93 _a1_=s; \
94 }
95 #define XNOR(_a0_,_a1_) ( ( (_a0_) && (_a1_) ) || ( !(_a0_) && !(_a1_) ) )
96 /**************************************************************/
97 /* memory allocation: */
98 /* Wise to not use PASO_MALLOC/FREE/REALLOC and */
99 /* PASO_THREAD... directly. These are only for tailoring */
100 /* the main macros that follow */
101 /**************************************************************/
102
103 #if defined(_WIN32) /* Use python for memory management on windows. */
104
105 #include <python.h>
106
107 #define PASO_MALLOC PyMem_Malloc
108 #define PASO_FREE PyMem_Free
109 #define PASO_REALLOC PyMem_Realloc
110
111 #else
112
113 #include <stdlib.h>
114
115 #define PASO_MALLOC malloc
116 #define PASO_FREE free
117 #define PASO_REALLOC realloc
118
119 #endif
120
121 #ifndef __const
122 # if (defined __STDC__ && __STDC__)
123 # define __const const
124 # else
125 # define __const
126 # endif
127 #endif
128
129
130 /* FIXME: This is not satisfactory. */
131 /* _ECC, __INTEL_COMPILER, and other */
132 /* intel compiler pre-defines need to be handled */
133 /* (__ICL, __ICC come to mind) */
134 /* Also, _WIN32 may take this branch one day... */
135 /* SO KEEP ALL THREAD_MEMALLOC/FREEs CONFINED TO THE PASO LIBRARY. */
136
137 #if defined(__ECC) && defined(_OPENMP) /* ECC version of intel compiler with openmp. */
138 #include <omp.h>
139 #define PASO_THREAD_MALLOC kmp_malloc
140 #define PASO_THREAD_FREE kmp_free
141 #else
142 #define PASO_THREAD_MALLOC PASO_MALLOC
143 #define PASO_THREAD_FREE PASO_FREE
144 #endif
145
146
147 /* Prepare for the day that this becomes sharable. */
148 /* and we wish to do multi-file optimisations on windows */
149
150 #define PASO_DLL_API
151
152 #ifdef _WIN32
153 # ifndef PASO_STATIC_LIB
154 # undef PASO_DLL_API
155 # ifdef PASO_EXPORTS
156 # define PASO_DLL_API __declspec(dllexport)
157 # else
158 # define PASO_DLL_API __declspec(dllimport)
159 # endif
160 # endif
161 #endif
162
163
164 /******************The main macros ************************************/
165
166 #define MEMALLOC(_LENGTH_,_TYPE_) \
167 (_TYPE_*) PASO_MALLOC(((size_t)(_LENGTH_))*sizeof(_TYPE_))
168
169 /* do {} while(0) - an old trick for bracketing a macro that */
170 /* makes sure a semi-colon does no harm. */
171
172 #define MEMFREE(_PTR_) \
173 do \
174 { \
175 if ((void *)(_PTR_) != NULL ) { PASO_FREE(_PTR_); (_PTR_) = NULL; } \
176 } while(0)
177
178 #define MEMREALLOC(_RETP_,_POINTER_,_LENGTH_,_TYPE_) \
179 do \
180 { \
181 if( (_POINTER_)!=NULL ) \
182 { \
183 _RETP_ = (_TYPE_*)PASO_REALLOC((void*)(_POINTER_), \
184 ((size_t)(_LENGTH_))*sizeof(_TYPE_) ); \
185 } \
186 else \
187 { \
188 _RETP_ = (_TYPE_*)PASO_MALLOC( ((size_t)(_LENGTH_))*sizeof(_TYPE_) ); \
189 } \
190 } while(0)
191
192 #define TMPMEMALLOC MEMALLOC
193 #define TMPMEMFREE MEMFREE
194 #define TMPMEMREALLOC MEMREALLOC
195
196 #define THREAD_MEMALLOC(_LENGTH_,_TYPE_) \
197 (_TYPE_*) PASO_THREAD_MALLOC/**/(((size_t)(_LENGTH_))*sizeof(_TYPE_))
198
199 #define THREAD_MEMFREE(_PTR_) \
200 do \
201 { \
202 if ((void *)(_PTR_) != NULL ) { PASO_THREAD_FREE(_PTR_); (_PTR_) = NULL; } \
203 } while(0)
204
205
206 /*
207 This was useful for seeing what memory is being allocated if you get an "Out of memory" error
208 if used again, bracket with do {} while(0)
209 #define TMPMEMALLOC(_LENGTH_,_TYPE_) (printf("TMPMEMALLOC at %s %d #bytes=%d*%d=%d\n", __FILE__, __LINE__, _LENGTH_, sizeof(_TYPE_), ((size_t)(_LENGTH_) * sizeof(_TYPE_))) , (_TYPE_*) malloc(((size_t)(_LENGTH_))*sizeof(_TYPE_)))
210
211 This was useful for seeing where memory is being freed if you get an "glibc detected...free" error
212 if used again, bracket with do {} while(0)
213 #define TMPMEMFREE(_PTR_) if ((void *)(_PTR_) != NULL ) { printf("TMPMEMFREE AAA %s %d\n", __FILE__, __LINE__); free(_PTR_); (_PTR_) = NULL; printf("TMPMEMFREE BBB %s %d\n", __FILE__, __LINE__); }
214 */
215
216 #endif /* #ifndef INC_PASO_COMMON */

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