[f734e7d] | 1 | // GENERATED CODE --- DO NOT EDIT --- |
---|
| 2 | // Code is produced by sasmodels.gen from sasmodels/models/MODEL.c |
---|
| 3 | |
---|
| 4 | #ifdef __OPENCL_VERSION__ |
---|
| 5 | # define USE_OPENCL |
---|
| 6 | #endif |
---|
| 7 | |
---|
[e3a9733] | 8 | #define USE_KAHAN_SUMMATION 0 |
---|
| 9 | |
---|
[f734e7d] | 10 | // If opencl is not available, then we are compiling a C function |
---|
| 11 | // Note: if using a C++ compiler, then define kernel as extern "C" |
---|
| 12 | #ifndef USE_OPENCL |
---|
| 13 | # ifdef __cplusplus |
---|
[95e861b] | 14 | #include <cstdio> |
---|
[f734e7d] | 15 | #include <cmath> |
---|
[750ffa5] | 16 | using namespace std; |
---|
[f734e7d] | 17 | #if defined(_MSC_VER) |
---|
[caf768d] | 18 | #include <float.h> |
---|
| 19 | #define kernel extern "C" __declspec( dllexport ) |
---|
[750ffa5] | 20 | inline double trunc(double x) { return x>=0?floor(x):-floor(-x); } |
---|
[caf768d] | 21 | inline double fmin(double x, double y) { return x>y ? y : x; } |
---|
| 22 | inline double fmax(double x, double y) { return x<y ? y : x; } |
---|
| 23 | inline double isnan(double x) { return _isnan(x); } |
---|
[f734e7d] | 24 | #else |
---|
[caf768d] | 25 | #define kernel extern "C" |
---|
[f734e7d] | 26 | #endif |
---|
[750ffa5] | 27 | inline void SINCOS(double angle, double &svar, double &cvar) { svar=sin(angle); cvar=cos(angle); } |
---|
[f734e7d] | 28 | # else |
---|
[95e861b] | 29 | #include <stdio.h> |
---|
[750ffa5] | 30 | #include <tgmath.h> // C99 type-generic math, so sin(float) => sinf |
---|
| 31 | // MSVC doesn't support C99, so no need for dllexport on C99 branch |
---|
[f734e7d] | 32 | #define kernel |
---|
[750ffa5] | 33 | #define SINCOS(angle,svar,cvar) do {const double _t_=angle; svar=sin(_t_);cvar=cos(_t_);} while (0) |
---|
[f734e7d] | 34 | # endif |
---|
| 35 | # define global |
---|
| 36 | # define local |
---|
| 37 | # define constant const |
---|
[750ffa5] | 38 | // OpenCL powr(a,b) = C99 pow(a,b), b >= 0 |
---|
| 39 | // OpenCL pown(a,b) = C99 pow(a,b), b integer |
---|
[f734e7d] | 40 | # define powr(a,b) pow(a,b) |
---|
| 41 | # define pown(a,b) pow(a,b) |
---|
| 42 | #else |
---|
| 43 | # ifdef USE_SINCOS |
---|
| 44 | # define SINCOS(angle,svar,cvar) svar=sincos(angle,&cvar) |
---|
| 45 | # else |
---|
[750ffa5] | 46 | # define SINCOS(angle,svar,cvar) do {const double _t_=angle; svar=sin(_t_);cvar=cos(_t_);} while (0) |
---|
[f734e7d] | 47 | # endif |
---|
| 48 | #endif |
---|
| 49 | |
---|
| 50 | // Standard mathematical constants: |
---|
| 51 | // M_E, M_LOG2E, M_LOG10E, M_LN2, M_LN10, M_PI, M_PI_2=pi/2, M_PI_4=pi/4, |
---|
| 52 | // M_1_PI=1/pi, M_2_PI=2/pi, M_2_SQRTPI=2/sqrt(pi), SQRT2, SQRT1_2=sqrt(1/2) |
---|
| 53 | // OpenCL defines M_constant_F for float constants, and nothing if double |
---|
| 54 | // is not enabled on the card, which is why these constants may be missing |
---|
| 55 | #ifndef M_PI |
---|
| 56 | # define M_PI 3.141592653589793 |
---|
| 57 | #endif |
---|
| 58 | #ifndef M_PI_2 |
---|
| 59 | # define M_PI_2 1.570796326794897 |
---|
| 60 | #endif |
---|
| 61 | #ifndef M_PI_4 |
---|
| 62 | # define M_PI_4 0.7853981633974483 |
---|
| 63 | #endif |
---|
| 64 | |
---|
| 65 | // Non-standard pi/180, used for converting between degrees and radians |
---|
| 66 | #ifndef M_PI_180 |
---|
| 67 | # define M_PI_180 0.017453292519943295 |
---|
| 68 | #endif |
---|
| 69 | |
---|
| 70 | |
---|
| 71 | %(DEFINES)s |
---|
| 72 | |
---|
| 73 | %(SOURCES)s |
---|
| 74 | |
---|
| 75 | /* |
---|
| 76 | ########################################################## |
---|
| 77 | # # |
---|
| 78 | # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! # |
---|
| 79 | # !! !! # |
---|
| 80 | # !! KEEP THIS CODE CONSISTENT WITH KERNELPY.PY !! # |
---|
| 81 | # !! !! # |
---|
| 82 | # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! # |
---|
| 83 | # # |
---|
| 84 | ########################################################## |
---|
| 85 | */ |
---|
| 86 | |
---|
| 87 | #ifdef IQ_KERNEL_NAME |
---|
| 88 | kernel void IQ_KERNEL_NAME( |
---|
| 89 | global const double *q, |
---|
| 90 | global double *result, |
---|
| 91 | const int Nq, |
---|
| 92 | #ifdef IQ_OPEN_LOOPS |
---|
| 93 | #ifdef USE_OPENCL |
---|
| 94 | global double *loops_g, |
---|
| 95 | #endif |
---|
| 96 | local double *loops, |
---|
| 97 | const double cutoff, |
---|
| 98 | IQ_DISPERSION_LENGTH_DECLARATIONS, |
---|
| 99 | #endif |
---|
| 100 | IQ_FIXED_PARAMETER_DECLARATIONS |
---|
| 101 | ) |
---|
| 102 | { |
---|
| 103 | #ifdef USE_OPENCL |
---|
| 104 | #ifdef IQ_OPEN_LOOPS |
---|
| 105 | // copy loops info to local memory |
---|
| 106 | event_t e = async_work_group_copy(loops, loops_g, (IQ_DISPERSION_LENGTH_SUM)*2, 0); |
---|
| 107 | wait_group_events(1, &e); |
---|
| 108 | #endif |
---|
| 109 | |
---|
| 110 | int i = get_global_id(0); |
---|
| 111 | if (i < Nq) |
---|
| 112 | #else |
---|
| 113 | #pragma omp parallel for |
---|
| 114 | for (int i=0; i < Nq; i++) |
---|
| 115 | #endif |
---|
| 116 | { |
---|
| 117 | const double qi = q[i]; |
---|
| 118 | #ifdef IQ_OPEN_LOOPS |
---|
| 119 | double ret=0.0, norm=0.0; |
---|
| 120 | #ifdef VOLUME_PARAMETERS |
---|
| 121 | double vol=0.0, norm_vol=0.0; |
---|
| 122 | #endif |
---|
| 123 | IQ_OPEN_LOOPS |
---|
| 124 | //for (int radius_i=0; radius_i < Nradius; radius_i++) { |
---|
| 125 | // const double radius = loops[2*(radius_i)]; |
---|
| 126 | // const double radius_w = loops[2*(radius_i)+1]; |
---|
| 127 | |
---|
| 128 | const double weight = IQ_WEIGHT_PRODUCT; |
---|
| 129 | if (weight > cutoff) { |
---|
[750ffa5] | 130 | const double scattering = Iq(qi, IQ_PARAMETERS); |
---|
[c138211] | 131 | // allow kernels to exclude invalid regions by returning NaN |
---|
| 132 | if (!isnan(scattering)) { |
---|
[750ffa5] | 133 | ret += weight*scattering; |
---|
[f734e7d] | 134 | norm += weight; |
---|
| 135 | #ifdef VOLUME_PARAMETERS |
---|
| 136 | const double vol_weight = VOLUME_WEIGHT_PRODUCT; |
---|
| 137 | vol += vol_weight*form_volume(VOLUME_PARAMETERS); |
---|
| 138 | norm_vol += vol_weight; |
---|
| 139 | #endif |
---|
[c138211] | 140 | } |
---|
[750ffa5] | 141 | //else { printf("exclude qx,qy,I:%%g,%%g,%%g\n",qi,scattering); } |
---|
[f734e7d] | 142 | } |
---|
| 143 | IQ_CLOSE_LOOPS |
---|
| 144 | #ifdef VOLUME_PARAMETERS |
---|
| 145 | if (vol*norm_vol != 0.0) { |
---|
| 146 | ret *= norm_vol/vol; |
---|
| 147 | } |
---|
| 148 | #endif |
---|
| 149 | result[i] = scale*ret/norm+background; |
---|
| 150 | #else |
---|
| 151 | result[i] = scale*Iq(qi, IQ_PARAMETERS) + background; |
---|
| 152 | #endif |
---|
| 153 | } |
---|
| 154 | } |
---|
| 155 | #endif |
---|
| 156 | |
---|
| 157 | |
---|
| 158 | #ifdef IQXY_KERNEL_NAME |
---|
| 159 | kernel void IQXY_KERNEL_NAME( |
---|
| 160 | global const double *qx, |
---|
| 161 | global const double *qy, |
---|
| 162 | global double *result, |
---|
| 163 | const int Nq, |
---|
| 164 | #ifdef IQXY_OPEN_LOOPS |
---|
| 165 | #ifdef USE_OPENCL |
---|
| 166 | global double *loops_g, |
---|
| 167 | #endif |
---|
| 168 | local double *loops, |
---|
| 169 | const double cutoff, |
---|
| 170 | IQXY_DISPERSION_LENGTH_DECLARATIONS, |
---|
| 171 | #endif |
---|
| 172 | IQXY_FIXED_PARAMETER_DECLARATIONS |
---|
| 173 | ) |
---|
| 174 | { |
---|
| 175 | #ifdef USE_OPENCL |
---|
| 176 | #ifdef IQXY_OPEN_LOOPS |
---|
| 177 | // copy loops info to local memory |
---|
| 178 | event_t e = async_work_group_copy(loops, loops_g, (IQXY_DISPERSION_LENGTH_SUM)*2, 0); |
---|
| 179 | wait_group_events(1, &e); |
---|
| 180 | #endif |
---|
| 181 | |
---|
| 182 | int i = get_global_id(0); |
---|
| 183 | if (i < Nq) |
---|
| 184 | #else |
---|
| 185 | #pragma omp parallel for |
---|
| 186 | for (int i=0; i < Nq; i++) |
---|
| 187 | #endif |
---|
| 188 | { |
---|
| 189 | const double qxi = qx[i]; |
---|
| 190 | const double qyi = qy[i]; |
---|
[e3a9733] | 191 | #if USE_KAHAN_SUMMATION |
---|
| 192 | double accumulated_error = 0.0; |
---|
| 193 | #endif |
---|
[f734e7d] | 194 | #ifdef IQXY_OPEN_LOOPS |
---|
| 195 | double ret=0.0, norm=0.0; |
---|
| 196 | #ifdef VOLUME_PARAMETERS |
---|
| 197 | double vol=0.0, norm_vol=0.0; |
---|
| 198 | #endif |
---|
| 199 | IQXY_OPEN_LOOPS |
---|
| 200 | //for (int radius_i=0; radius_i < Nradius; radius_i++) { |
---|
| 201 | // const double radius = loops[2*(radius_i)]; |
---|
| 202 | // const double radius_w = loops[2*(radius_i)+1]; |
---|
| 203 | |
---|
| 204 | const double weight = IQXY_WEIGHT_PRODUCT; |
---|
| 205 | if (weight > cutoff) { |
---|
| 206 | |
---|
[750ffa5] | 207 | const double scattering = Iqxy(qxi, qyi, IQXY_PARAMETERS); |
---|
[9c79c32] | 208 | if (!isnan(scattering)) { // if scattering is bad, exclude it from sum |
---|
[062c56d] | 209 | //if (scattering >= 0.0) { // scattering cannot be negative |
---|
[f734e7d] | 210 | // TODO: use correct angle for spherical correction |
---|
| 211 | // Definition of theta and phi are probably reversed relative to the |
---|
| 212 | // equation which gave rise to this correction, leading to an |
---|
| 213 | // attenuation of the pattern as theta moves through pi/2. Either |
---|
| 214 | // reverse the meanings of phi and theta in the forms, or use phi |
---|
| 215 | // rather than theta in this correction. Current code uses cos(theta) |
---|
| 216 | // so that values match those of sasview. |
---|
[e3a9733] | 217 | #if defined(IQXY_HAS_THETA) // && 0 |
---|
[f734e7d] | 218 | const double spherical_correction |
---|
[9c79c32] | 219 | = (Ntheta>1 ? fabs(cos(M_PI_180*theta))*M_PI_2:1.0); |
---|
[e3a9733] | 220 | const double next = spherical_correction * weight * scattering; |
---|
| 221 | #else |
---|
| 222 | const double next = weight * scattering; |
---|
| 223 | #endif |
---|
| 224 | #if USE_KAHAN_SUMMATION |
---|
| 225 | const double y = next - accumulated_error; |
---|
| 226 | const double t = ret + y; |
---|
| 227 | accumulated_error = (t - ret) - y; |
---|
| 228 | ret = t; |
---|
[f734e7d] | 229 | #else |
---|
[e3a9733] | 230 | ret += next; |
---|
[f734e7d] | 231 | #endif |
---|
| 232 | norm += weight; |
---|
| 233 | #ifdef VOLUME_PARAMETERS |
---|
| 234 | const double vol_weight = VOLUME_WEIGHT_PRODUCT; |
---|
| 235 | vol += vol_weight*form_volume(VOLUME_PARAMETERS); |
---|
| 236 | #endif |
---|
| 237 | norm_vol += vol_weight; |
---|
[9c79c32] | 238 | } |
---|
[750ffa5] | 239 | //else { printf("exclude qx,qy,I:%%g,%%g,%%g\n",qi,scattering); } |
---|
[f734e7d] | 240 | } |
---|
| 241 | IQXY_CLOSE_LOOPS |
---|
| 242 | #ifdef VOLUME_PARAMETERS |
---|
| 243 | if (vol*norm_vol != 0.0) { |
---|
| 244 | ret *= norm_vol/vol; |
---|
| 245 | } |
---|
| 246 | #endif |
---|
| 247 | result[i] = scale*ret/norm+background; |
---|
| 248 | #else |
---|
| 249 | result[i] = scale*Iqxy(qxi, qyi, IQXY_PARAMETERS) + background; |
---|
| 250 | #endif |
---|
| 251 | } |
---|
| 252 | } |
---|
| 253 | #endif |
---|