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blas.c
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blas.c
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#include <stdlib.h>
#include <stdbool.h>
//#include "mkl_cblas.h"
//#include "i_malloc.h"
#define max(a,b) ({ typeof (a) _a = (a); typeof (b) _b = (b); _a > _b ? _a : _b; })
#define min(a,b) ({ typeof (a) _a = (a); typeof (b) _b = (b); _a < _b ? _a : _b; })
void clib_updt_modl(int numbsidexpos, int numbsideypos,
float* cntpmodl, float* cntpmodlacpt, int* regiacpt,
int sizeregi, int marg, int offsxpos, int offsypos, int booltile){
int NREGY, NREGX;
if (booltile > 0){
NREGX = (numbsidexpos / sizeregi) + 1;
NREGY = (numbsideypos / sizeregi) + 1;
}
else {
NREGX = (numbsidexpos / sizeregi);
NREGY = (numbsideypos / sizeregi);
}
int y0, y1, x0, x1, i, j, ii, jj;
for (j=0 ; j < NREGY ; j++){
y0 = max(j*sizeregi-offsypos-marg, 0);
y1 = min((j+1)*sizeregi-offsypos+marg, numbsideypos);
for (i=0 ; i < NREGX ; i++){
x0 = max(i*sizeregi-offsxpos-marg, 0);
x1 = min((i+1)*sizeregi-offsxpos+marg, numbsidexpos);
if (regiacpt[j*NREGX+i] > 0){
for (jj=y0 ; jj<y1; jj++)
for (ii=x0 ; ii<x1; ii++)
cntpmodlacpt[jj*numbsidexpos+ii] = cntpmodl[jj*numbsidexpos+ii];
}
}
}
}
void clib_eval_llik(int numbsidexpos, int numbsideypos,
float* cntpmodl, float* cntpresi, float* weig, double* chi2,
int sizeregi, int marg, int offsxpos, int offsypos, int booltile){
int NREGY, NREGX;
if (booltile > 0){
NREGX = (numbsidexpos / sizeregi) + 1;
NREGY = (numbsideypos / sizeregi) + 1;
}
else {
NREGX = (numbsidexpos / sizeregi);
NREGY = (numbsideypos / sizeregi);
}
//printf("offsxpos, offsypos: %d %d\n", offsxpos, offsypos);
int y0, y1, x0, x1, i, j, ii, jj;
for (j=0 ; j < NREGY ; j++){
y0 = max(j*sizeregi-offsypos-marg, 0);
y1 = min((j+1)*sizeregi-offsypos+marg, numbsideypos);
for (i=0 ; i < NREGX ; i++){
x0 = max(i*sizeregi-offsxpos-marg, 0);
x1 = min((i+1)*sizeregi-offsxpos+marg, numbsidexpos);
chi2[j*NREGX+i] = 0.;
for (jj=y0 ; jj<y1; jj++){
for (ii=x0 ; ii<x1; ii++){
//printf("sizeregi offsypos marg numbsideypos numbsidexpos y1 x1: %d %d %d %d %d %d %d \n", sizeregi, offsypos, marg, numbsideypos, numbsidexpos, y1, x1);
//printf("j,i,jj,ii: %d %d %d %d\n", j, i, jj, ii);
//printf("cntpmodl[jj*numbsidexpos+ii]: %f\n", cntpmodl[jj*numbsidexpos+ii]);
//printf("cntpresi[jj*numbsidexpos+ii]: %f\n", cntpresi[jj*numbsidexpos+ii]);
//printf("weig[jj*numbsidexpos+ii]: %f\n", weig[jj*numbsidexpos+ii]);
//printf("temp: %f\n\n", (cntpmodl[jj*numbsidexpos+ii]-cntpresi[jj*numbsidexpos+ii]) * \
// (cntpmodl[jj*numbsidexpos+ii]-cntpresi[jj*numbsidexpos+ii]) * weig[jj*numbsidexpos+ii]);
chi2[j*NREGX+i] += (cntpmodl[jj*numbsidexpos+ii]-cntpresi[jj*numbsidexpos+ii]) * \
(cntpmodl[jj*numbsidexpos+ii]-cntpresi[jj*numbsidexpos+ii]) * weig[jj*numbsidexpos+ii];
}
}
}
//printf("chi[0]: %f\n", chi2[0]);
}
}
void clib_eval_modl(int numbsidexpos, int numbsideypos, int numbphon, int numbpixlpsfnside, int numbparaspix,
float* A, float* B, float* C,
int* x, int* y,
float* cntpmodl, float* cntpresi, float* weig, double* chi2,
int sizeregi, int marg, int offsxpos, int offsypos, int booltile)
{
int i, m, t, imax, j, r, jmax, rad, p, xposthis, yposthis;
float alpha, beta;
int numbpixlpsfn = numbpixlpsfnside * numbpixlpsfnside;
int numbpixl = numbsidexpos * numbsideypos;
rad = numbpixlpsfnside / 2;
alpha = 1.; beta = 0.;
// save time if there are many phonions per pixel by overwriting and shorting the A matrix
int hash[numbsideypos*numbsidexpos];
for (i=0; i<numbsideypos*numbsidexpos; i++)
hash[i] = -1;
int numbphonshrt = 0;
for (p = 0; p < numbphon; p++){
xposthis = x[p];
yposthis = y[p];
int idx = yposthis*numbsidexpos+xposthis;
if (hash[idx] != -1){
for (i=0; i<numbparaspix; i++){
A[hash[idx]*numbparaspix+i] += A[p*numbparaspix+i];
}
}
else{
hash[idx] = numbphonshrt;
for (i=0; i<numbparaspix; i++)
A[numbphonshrt*numbparaspix+i] = A[p*numbparaspix+i];
x[numbphonshrt] = x[p];
y[numbphonshrt] = y[p];
numbphonshrt++;
}
}
numbphon = numbphonshrt;
// matrix multiplication
//cblas_sgemm(CblasRowMajor, CblasNoTrans, CblasNoTrans, numbphon, numbpixlpsfn, numbparaspix, alpha, A, numbparaspix, B, numbpixlpsfn, beta, C, numbpixlpsfn);
int c;
double summ;
for (p = 0; p < numbphon; p++){
for (i = 0; i < numbpixlpsfn; i++){
summ = 0.;
for (c = 0; c < numbparaspix; c++){
summ = summ + A[p*numbparaspix+c] * B[c*numbpixlpsfn+i];
}
C[p*numbpixlpsfn+i] = summ;
}
}
// loop over phonions, insert psfs into cntpmodl
for (p = 0 ; p < numbphon ; p++){
xposthis = x[p];
yposthis = y[p];
imax = min(xposthis+rad, numbsidexpos-1);
jmax = min(yposthis+rad, numbsideypos-1);
for (j = max(yposthis-rad, 0), r = (p*numbpixlpsfnside+j-yposthis+rad)*numbpixlpsfnside ; j <= jmax ; j++, r+=numbpixlpsfnside){
for (i = max(xposthis - rad, 0), m = i-xposthis+rad ; i <= imax ; i++, m++){
cntpmodl[j*numbsidexpos+i] += C[m+r];
}
}
}
//printf("sizeregi offsypos marg numbsideypos numbsidexpos: %d %d %d %d %d\n", sizeregi, sizeregi, marg, numbsideypos, numbsidexpos);
clib_eval_llik(numbsidexpos, numbsideypos, cntpmodl, cntpresi, weig, chi2, sizeregi, marg, offsxpos, offsypos, booltile);
}