-
Notifications
You must be signed in to change notification settings - Fork 14
/
weno_right005001.c
220 lines (189 loc) · 6.5 KB
/
weno_right005001.c
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
#include <Python.h>
#include <numpy/ndarrayobject.h>
void
weights_right005001 (const double *restrict sigma, int n, int ssi, int ssr,
double *restrict omega, int wsi, int wsl, int wsr)
{
int i;
double acc, sigma0, sigma1, sigma2, sigma3, sigma4, omega1, omega3, omega0, omega2, omega4;
for (i = 5; i < n - 5; i++)
{
sigma0 = sigma[i * ssi + 0 * ssr];
sigma1 = sigma[i * ssi + 1 * ssr];
sigma2 = sigma[i * ssi + 2 * ssr];
sigma3 = sigma[i * ssi + 3 * ssr];
sigma4 = sigma[i * ssi + 4 * ssr];
acc = 0.0;
omega0 = (+0.0396825396825397) / ((sigma0 + 1.0e-6) * (sigma0 + 1.0e-6));
acc = acc + omega0;
omega1 = (+0.317460317460317) / ((sigma1 + 1.0e-6) * (sigma1 + 1.0e-6));
acc = acc + omega1;
omega2 = (+0.476190476190476) / ((sigma2 + 1.0e-6) * (sigma2 + 1.0e-6));
acc = acc + omega2;
omega3 = (+0.158730158730159) / ((sigma3 + 1.0e-6) * (sigma3 + 1.0e-6));
acc = acc + omega3;
omega4 = (+0.00793650793650794) / ((sigma4 + 1.0e-6) * (sigma4 + 1.0e-6));
acc = acc + omega4;
omega0 = (omega0) / (acc);
omega1 = (omega1) / (acc);
omega2 = (omega2) / (acc);
omega3 = (omega3) / (acc);
omega4 = (omega4) / (acc);
omega[i * wsi + 0 * wsl + 0 * wsr + 0] = omega0;
omega[i * wsi + 0 * wsl + 1 * wsr + 0] = omega1;
omega[i * wsi + 0 * wsl + 2 * wsr + 0] = omega2;
omega[i * wsi + 0 * wsl + 3 * wsr + 0] = omega3;
omega[i * wsi + 0 * wsl + 4 * wsr + 0] = omega4;
}
}
PyObject *
py_weights_right005001 (PyObject * self, PyObject * args)
{
double *sigma, *omega;
PyArrayObject *sigma_py, *omega_py;
long int n;
int ssi, ssr, wsi, wsl, wsr;
/* parse options */
if (!PyArg_ParseTuple (args, "OO", &sigma_py, &omega_py))
return NULL;
if (sigma_py->nd != 2 || sigma_py->descr->type_num != PyArray_DOUBLE)
{
PyErr_SetString (PyExc_ValueError, "sigma must be two-dimensional and of type float");
return NULL;
}
if (omega_py->descr->type_num != PyArray_DOUBLE)
{
PyErr_SetString (PyExc_ValueError, "omega must be of type float");
return NULL;
}
if (!(omega_py->nd >= 2 && omega_py->nd <= 4))
{
PyErr_SetString (PyExc_ValueError, "omega must be two, three, or four dimensional");
return NULL;
}
/* get data, n, strides */
sigma = (double *) PyArray_DATA (sigma_py);
omega = (double *) PyArray_DATA (omega_py);
n = PyArray_DIM (omega_py, 0);
ssi = sigma_py->strides[0] / sizeof (double);
ssr = sigma_py->strides[1] / sizeof (double);
wsi = omega_py->strides[0] / sizeof (double);
if (omega_py->nd == 3)
{
wsl = omega_py->strides[1] / sizeof (double);
wsr = omega_py->strides[2] / sizeof (double);
}
else
{
wsl = 0;
wsr = omega_py->strides[1] / sizeof (double);
}
weights_right005001 (sigma, n, ssi, ssr, omega, wsi, wsl, wsr);
Py_INCREF (Py_None);
return Py_None;
}
void
reconstruct_right005001 (const double *restrict f, int n, int fsi,
const double *restrict omega, int wsi, int wsl, int wsr,
double *restrict fr, int frsi, int frsl)
{
int i;
double omega1, omega3, omega0, omega2, omega4, fs0, fr1, fr3, fr0, fr2, fr4;
for (i = 5; i < n - 5; i++)
{
omega0 = omega[i * wsi + 0 * wsl + 0 * wsr + 0];
omega1 = omega[i * wsi + 0 * wsl + 1 * wsr + 0];
omega2 = omega[i * wsi + 0 * wsl + 2 * wsr + 0];
omega3 = omega[i * wsi + 0 * wsl + 3 * wsr + 0];
omega4 = omega[i * wsi + 0 * wsl + 4 * wsr + 0];
fr0 =
(+0.2) * (f[(i + 0) * fsi]) + (+1.28333333333333) * (f[(i + 1) * fsi]) +
(-0.716666666666667) * (f[(i + 2) * fsi]) + (+0.283333333333333) * (f[(i + 3) * fsi]) +
(-0.05) * (f[(i + 4) * fsi]);
fr1 =
(-0.05) * (f[(i - 1) * fsi]) + (+0.45) * (f[(i + 0) * fsi]) +
(+0.783333333333333) * (f[(i + 1) * fsi]) + (-0.216666666666667) * (f[(i + 2) * fsi]) +
(+0.0333333333333333) * (f[(i + 3) * fsi]);
fr2 =
(+0.0333333333333333) * (f[(i - 2) * fsi]) + (-0.216666666666667) * (f[(i - 1) * fsi]) +
(+0.783333333333333) * (f[(i + 0) * fsi]) + (+0.45) * (f[(i + 1) * fsi]) +
(-0.05) * (f[(i + 2) * fsi]);
fr3 =
(-0.05) * (f[(i - 3) * fsi]) + (+0.283333333333333) * (f[(i - 2) * fsi]) +
(-0.716666666666667) * (f[(i - 1) * fsi]) + (+1.28333333333333) * (f[(i + 0) * fsi]) +
(+0.2) * (f[(i + 1) * fsi]);
fr4 =
(+0.2) * (f[(i - 4) * fsi]) + (-1.05) * (f[(i - 3) * fsi]) +
(+2.28333333333333) * (f[(i - 2) * fsi]) + (-2.71666666666667) * (f[(i - 1) * fsi]) +
(+2.28333333333333) * (f[(i + 0) * fsi]);
fs0 =
(omega0) * (fr0) + (omega1) * (fr1) + (omega2) * (fr2) + (omega3) * (fr3) +
(omega4) * (fr4);
fr[i * frsi + 0 * frsl] = fs0;
}
}
PyObject *
py_reconstruct_right005001 (PyObject * self, PyObject * args)
{
double *f, *omega, *fr;
PyArrayObject *f_py, *omega_py, *fr_py;
long int n;
int fsi, frsi, frsl, wsi, wsl, wsr;
/* parse options */
if (!PyArg_ParseTuple (args, "OOO", &f_py, &omega_py, &fr_py))
return NULL;
if (f_py->nd != 1 || f_py->descr->type_num != PyArray_DOUBLE)
{
PyErr_SetString (PyExc_ValueError, "f must be one-dimensional and of type float");
return NULL;
}
if (fr_py->descr->type_num != PyArray_DOUBLE)
{
PyErr_SetString (PyExc_ValueError, "fr must be of type float");
return NULL;
}
if (!(fr_py->nd == 1 || fr_py->nd == 2))
{
PyErr_SetString (PyExc_ValueError, "fr must be one or two dimensional");
return NULL;
}
if (omega_py->descr->type_num != PyArray_DOUBLE)
{
PyErr_SetString (PyExc_ValueError, "omega must be of type float");
return NULL;
}
if (!(omega_py->nd >= 2 && omega_py->nd <= 4))
{
PyErr_SetString (PyExc_ValueError, "omega must be two, three, or four dimensional");
return NULL;
}
/* get data, n, strides */
f = (double *) PyArray_DATA (f_py);
fr = (double *) PyArray_DATA (fr_py);
omega = (double *) PyArray_DATA (omega_py);
n = PyArray_DIM (omega_py, 0);
fsi = f_py->strides[0] / sizeof (double);
frsi = fr_py->strides[0] / sizeof (double);
if (n == 1)
{
frsl = 0;
}
else
{
frsl = fr_py->strides[1] / sizeof (double);
}
wsi = omega_py->strides[0] / sizeof (double);
if (omega_py->nd == 3)
{
wsl = omega_py->strides[1] / sizeof (double);
wsr = omega_py->strides[2] / sizeof (double);
}
else
{
wsl = 0;
wsr = omega_py->strides[1] / sizeof (double);
}
reconstruct_right005001 (f, n, fsi, omega, wsi, wsl, wsr, fr, frsi, frsl);
Py_INCREF (Py_None);
return Py_None;
}