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

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Revision 1716 - (hide annotations)
Thu Aug 21 05:03:49 2008 UTC (11 years, 1 month ago) by gross
Original Path: trunk/paso/src/Common.h
File MIME type: text/plain
File size: 7386 byte(s)
getListOfTags method added to FunctionSpace class
1 ksteube 1312
2 jgs 150 /* $Id$ */
3    
4 ksteube 1312 /*******************************************************
5     *
6     * Copyright 2003-2007 by ACceSS MNRF
7     * Copyright 2007 by University of Queensland
8     *
9     * http://esscc.uq.edu.au
10     * Primary Business: Queensland, Australia
11     * Licensed under the Open Software License version 3.0
12     * http://www.opensource.org/licenses/osl-3.0.php
13     *
14     *******************************************************/
15 dhawcroft 631
16 jgs 150 #ifndef INC_PASO_COMMON
17     #define INC_PASO_COMMON
18    
19     /**************************************************************/
20    
21     /* Finley finite element solver: common include file */
22    
23     /**************************************************************/
24    
25     /* Copyrights by ACcESS Australia, 2003 */
26     /* Version: $Id$ */
27    
28     /**************************************************************/
29    
30     /* some system values */
31 phornby 1628 /* FIXME: This is not satisfactory. */
32     /* _ECC, __INTEL_COMPILER, and other */
33     /* intel compiler pre-defines need to be handled */
34     /* (__ICL, __ICC come to mind) */
35 woo409 779 #if ( defined __INTEL_COMPILER )
36 woo409 757 #include <mathimf.h>
37     #else
38     #include <math.h>
39     #endif
40 jgs 150
41 gross 1565 #if (defined __OPENMP)
42     #include <omp.h>
43     #endif
44    
45 jgs 150 #include <float.h>
46     #include <stdio.h>
47     #include <limits.h>
48     #include <stdlib.h>
49     #include <string.h>
50    
51     #define LenString_MAX FILENAME_MAX*2
52     #define LenErrorMsg_MAX LenString_MAX
53    
54     /* on some arcitectures it could be a good idea to use long rather than int */
55     /* this has not really been tested */
56    
57     typedef int dim_t;
58     typedef int index_t;
59     typedef int bool_t;
60     typedef int type_t;
61     typedef int err_t;
62    
63     #define INDEX_T_MAX INT_MAX
64 gross 1716 #define INDEX_T_MIN -INT_MAX
65 jgs 150 #define EPSILON DBL_EPSILON
66 gross 1370 #define LARGE_POSITIVE_FLOAT DBL_MAX
67 jgs 150
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 ksteube 1312 #define MAX3(_arg1_,_arg2_,_arg3_) MAX(_arg1_,MAX(_arg2_,_arg3_))
85 jgs 150 #define MIN(_arg1_,_arg2_) ((_arg1_)>(_arg2_) ? (_arg2_) : (_arg1_))
86 ksteube 1312 #define MIN3(_arg1_,_arg2_,_arg3_) MIN(_arg1_,MIN(_arg2_,_arg3_))
87 jgs 150 #define ABS(_arg_) MAX((_arg_),-(_arg_))
88 gross 1361 #define SIGN(_arg_) ((_arg_)>0 ? 1 : ((_arg_)<0 ? -1 : 0 ))
89 gross 1562 #define SWAP(_a0_,_a1_,_type_) { \
90     _type_ s; \
91     s=(_a0_); \
92     _a0_= (_a1_); \
93     _a1_=s; \
94     }
95 jgs 150 /**************************************************************/
96     /* memory allocation: */
97 phornby 1628 /* Wise to not use PASO_MALLOC/FREE/REALLOC and */
98     /* PASO_THREAD... directly. These are only for tailoring */
99     /* the main macros that follow */
100     /**************************************************************/
101 jgs 150
102 phornby 1628 #if defined(_WIN32) /* Use python for memory management on windows. */
103 ksteube 1312
104 phornby 1628 #include <python.h>
105 ksteube 1312
106 phornby 1628 #define PASO_MALLOC PyMem_Malloc
107     #define PASO_FREE PyMem_Free
108     #define PASO_REALLOC PyMem_Realloc
109 bcumming 730
110 jgs 150 #else
111 phornby 1628
112 ksteube 1662 #include <stdlib.h>
113 phornby 1628
114     #define PASO_MALLOC malloc
115     #define PASO_FREE free
116     #define PASO_REALLOC realloc
117    
118 jgs 150 #endif
119    
120 gross 1407
121 phornby 1628 /* FIXME: This is not satisfactory. */
122     /* _ECC, __INTEL_COMPILER, and other */
123     /* intel compiler pre-defines need to be handled */
124     /* (__ICL, __ICC come to mind) */
125     /* Also, _WIN32 may take this branch one day... */
126     /* SO KEEP ALL THREAD_MEMALLOC/FREEs CONFINED TO THE PASO LIBRARY. */
127    
128     #if defined(__ECC) && defined(_OPENMP) /* ECC version of intel compiler with openmp. */
129     #include <omp.h>
130     #define PASO_THREAD_MALLOC kmp_malloc
131     #define PASO_THREAD_FREE kmp_free
132     #else
133     #define PASO_THREAD_MALLOC PASO_MALLOC
134     #define PASO_THREAD_FREE PASO_FREE
135     #endif
136    
137     /******************The main macros ************************************/
138    
139     #define MEMALLOC(_LENGTH_,_TYPE_) \
140     (_TYPE_*) PASO_MALLOC(((size_t)(_LENGTH_))*sizeof(_TYPE_))
141    
142     /* do {} while(0) - an old trick for bracketing a macro that */
143     /* makes sure a semi-colon does no harm. */
144    
145     #define MEMFREE(_PTR_) \
146     do \
147     { \
148     if ((void *)(_PTR_) != NULL ) { PASO_FREE(_PTR_); (_PTR_) = NULL; } \
149     } while(0)
150    
151     #define MEMREALLOC(_POINTER_,_LENGTH_,_TYPE_) \
152     do \
153     { \
154     if( (_POINTER_)!=NULL ) \
155     { \
156     _POINTER_ = (_TYPE_*)PASO_REALLOC((void*)(_POINTER_), \
157     ((size_t)(_LENGTH_))*sizeof(_TYPE_) ); \
158     } \
159     else \
160     { \
161     _POINTER_ = (_TYPE_*)PASO_MALLOC( ((size_t)(_LENGTH_))*sizeof(_TYPE_) ); \
162     } \
163     } while(0)
164    
165     #define TMPMEMALLOC MEMALLOC
166     #define TMPMEMFREE MEMFREE
167    
168     #define THREAD_MEMALLOC(_LENGTH_,_TYPE_) \
169     (_TYPE_*) PASO_THREAD_MALLOC/**/(((size_t)(_LENGTH_))*sizeof(_TYPE_))
170    
171     #define THREAD_MEMFREE(_PTR_) \
172     do \
173     { \
174     if ((void *)(_PTR_) != NULL ) { PASO_THREAD_FREE(_PTR_); (_PTR_) = NULL; } \
175     } while(0)
176    
177    
178     /*
179     This was useful for seeing what memory is being allocated if you get an "Out of memory" error
180     if used again, bracket with do {} while(0)
181     #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_)))
182    
183     This was useful for seeing where memory is being freed if you get an "glibc detected...free" error
184     if used again, bracket with do {} while(0)
185     #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__); }
186     */
187    
188 jgs 150 #endif /* #ifndef INC_PASO_COMMON */

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