-
Notifications
You must be signed in to change notification settings - Fork 10
/
nbody_elements_impl.h
229 lines (174 loc) · 6.46 KB
/
nbody_elements_impl.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
#ifndef __NBODY_ELEMENTS_IMPL_H__
#define __NBODY_ELEMENTS_IMPL_H__
#include <Accelerate/Accelerate.h>
#include <simd/simd.h>
#include "nbody_elements.h"
template<>
class VelocityElem<float> {
public:
simd_float3 m_v ;
VelocityElem<float>& operator=( const VelocityElem<float>& rhs ) {
m_v = rhs.m_v;
return *this;
}
VelocityElem<float>& operator=( const simd_float3& rhs ) {
m_v = rhs;
return *this;
}
};
template<>
class VelocityElem<double> {
public:
simd_double3 m_v ;
VelocityElem<double>& operator=( const VelocityElem<double>& rhs ) {
m_v = rhs.m_v;
return *this;
}
VelocityElem<double>& operator=( const simd_double3& rhs ) {
m_v = rhs;
return *this;
}
};
template<>
class NBodyElem<float> {
public:
simd_float3 m_p0 ;
simd_float3 m_p1 ;
simd_float3 m_v ;
simd_float4 m_am ; // xyz: accel, w: mass
void setRandomInitialState( default_random_engine& e ) {
uniform_real_distribution dist_geom{ -1.0, 1.0 };
uniform_real_distribution dist_mass{ 0.0, 1.0 };
m_p0.x = dist_geom( e );
m_p0.y = dist_geom( e );
m_p0.z = dist_geom( e );
m_p1.x = dist_geom( e );
m_p1.y = dist_geom( e );
m_p1.z = dist_geom( e );
m_v.x = dist_geom( e );
m_v.y = dist_geom( e );
m_v.z = dist_geom( e );
m_am.x = 0.0;
m_am.y = 0.0;
m_am.z = 0.0;
m_am.w = dist_mass( e );
}
NBodyElem<float>& operator=( const NBodyElem<float>& rhs ) {
m_p0 = rhs.m_p0;
m_p1 = rhs.m_p1;
m_v = rhs.m_v;
m_am = rhs.m_am;
return *this;
}
bool operator!=( const NBodyElem<float>& rhs ) {
return m_p0.x != rhs.m_p0.x
|| m_p0.y != rhs.m_p0.y
|| m_p0.z != rhs.m_p0.z
|| m_p1.x != rhs.m_p1.x
|| m_p1.y != rhs.m_p1.y
|| m_p1.z != rhs.m_p1.z
|| m_v.x != rhs.m_v.x
|| m_v.y != rhs.m_v.y
|| m_v.z != rhs.m_v.z
|| m_am.x != rhs.m_am.x
|| m_am.y != rhs.m_am.y
|| m_am.z != rhs.m_am.z
|| m_am.w != rhs.m_am.w;
}
bool equalWithinTolerance( const NBodyElem<float>& rhs, const float tolerance ) {
/*
return ::equalWithinTolerance( m_p0.x, rhs.m_p0.x, tolerance )
&& ::equalWithinTolerance( m_p0.y, rhs.m_p0.y, tolerance )
&& ::equalWithinTolerance( m_p0.z, rhs.m_p0.z, tolerance )
&& ::equalWithinTolerance( m_p1.x, rhs.m_p1.x, tolerance )
&& ::equalWithinTolerance( m_p1.y, rhs.m_p1.y, tolerance )
&& ::equalWithinTolerance( m_p1.z, rhs.m_p1.z, tolerance )
&& ::equalWithinTolerance( m_v.x, rhs.m_v.x, tolerance )
&& ::equalWithinTolerance( m_v.y, rhs.m_v.y, tolerance )
&& ::equalWithinTolerance( m_v.z, rhs.m_v.z, tolerance )
&& ::equalWithinTolerance( m_am.x, rhs.m_am.x, tolerance )
&& ::equalWithinTolerance( m_am.y, rhs.m_am.y, tolerance )
&& ::equalWithinTolerance( m_am.z, rhs.m_am.z, tolerance )
&& ::equalWithinTolerance( m_am.w, rhs.m_am.w, tolerance )
;
*/
return ::equalWithinTolerance( m_am.x, rhs.m_am.x, tolerance )
&& ::equalWithinTolerance( m_am.y, rhs.m_am.y, tolerance )
&& ::equalWithinTolerance( m_am.z, rhs.m_am.z, tolerance )
&& ::equalWithinTolerance( m_am.w, rhs.m_am.w, tolerance )
;
}
};
template<>
class NBodyElem<double> {
public:
simd_double3 m_p0 ;
simd_double3 m_p1 ;
simd_double3 m_v ;
simd_double4 m_am ; // xyz: accel, w: mass
void setRandomInitialState( default_random_engine& e ) {
uniform_real_distribution dist_geom{ -1.0, 1.0 };
uniform_real_distribution dist_mass{ 0.0, 1.0 };
m_p0.x = dist_geom( e );
m_p0.y = dist_geom( e );
m_p0.z = dist_geom( e );
m_p1.x = dist_geom( e );
m_p1.y = dist_geom( e );
m_p1.z = dist_geom( e );
m_v.x = dist_geom( e );
m_v.y = dist_geom( e );
m_v.z = dist_geom( e );
m_am.x = 0.0;
m_am.y = 0.0;
m_am.z = 0.0;
m_am.w = dist_mass( e );
}
NBodyElem<double>& operator=( const NBodyElem<double>& rhs ) {
m_p0.x = rhs.m_p0.x;
m_p0.y = rhs.m_p0.y;
m_p0.z = rhs.m_p0.z;
m_p1.x = rhs.m_p1.x;
m_p1.y = rhs.m_p1.y;
m_p1.z = rhs.m_p1.z;
m_v.x = rhs.m_v.x;
m_v.y = rhs.m_v.y;
m_v.z = rhs.m_v.z;
m_am.x = rhs.m_am.x;
m_am.y = rhs.m_am.y;
m_am.z = rhs.m_am.z;
m_am.w = rhs.m_am.w;
return *this;
}
bool operator!=( const NBodyElem<double>& rhs ) {
return m_p0.x != rhs.m_p0.x
|| m_p0.y != rhs.m_p0.y
|| m_p0.z != rhs.m_p0.z
|| m_p1.x != rhs.m_p1.x
|| m_p1.y != rhs.m_p1.y
|| m_p1.z != rhs.m_p1.z
|| m_v.x != rhs.m_v.x
|| m_v.y != rhs.m_v.y
|| m_v.z != rhs.m_v.z
|| m_am.x != rhs.m_am.x
|| m_am.y != rhs.m_am.y
|| m_am.z != rhs.m_am.z
|| m_am.w != rhs.m_am.w;
}
bool equalWithinTolerance( const NBodyElem<double>& rhs, const double tolerance ) {
return ::equalWithinTolerance( m_p0.x, rhs.m_p0.x, tolerance )
&& ::equalWithinTolerance( m_p0.y, rhs.m_p0.y, tolerance )
&& ::equalWithinTolerance( m_p0.z, rhs.m_p0.z, tolerance )
&& ::equalWithinTolerance( m_p1.x, rhs.m_p1.x, tolerance )
&& ::equalWithinTolerance( m_p1.y, rhs.m_p1.y, tolerance )
&& ::equalWithinTolerance( m_p1.z, rhs.m_p1.z, tolerance )
&& ::equalWithinTolerance( m_v.x, rhs.m_v.x, tolerance )
&& ::equalWithinTolerance( m_v.y, rhs.m_v.y, tolerance )
&& ::equalWithinTolerance( m_v.z, rhs.m_v.z, tolerance )
&& ::equalWithinTolerance( m_am.x, rhs.m_am.x, tolerance )
&& ::equalWithinTolerance( m_am.y, rhs.m_am.y, tolerance )
&& ::equalWithinTolerance( m_am.z, rhs.m_am.z, tolerance )
&& ::equalWithinTolerance( m_am.w, rhs.m_am.w, tolerance )
;
}
};
#endif /*__NBODY_ELEMENTS_IMPL_H__*/