From 913d355ec1cf34aad71fdd75202fc3b0309e63a0 Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Thu, 28 Jan 2016 20:30:38 +0000
Subject: [PATCH] lots of stuff
---
src/blas.c | 35 ++++++++++++++++++++++++++++-------
1 files changed, 28 insertions(+), 7 deletions(-)
diff --git a/src/blas.c b/src/blas.c
index 556603c..d7948bb 100644
--- a/src/blas.c
+++ b/src/blas.c
@@ -1,15 +1,26 @@
#include "blas.h"
#include "math.h"
+#include <assert.h>
-void shortcut_cpu(float *out, int w, int h, int c, int batch, int sample, float *add, int stride, int c2)
+void shortcut_cpu(int batch, int w1, int h1, int c1, float *add, int w2, int h2, int c2, float *out)
{
+ int stride = w1/w2;
+ int sample = w2/w1;
+ assert(stride == h1/h2);
+ assert(sample == h2/h1);
+ if(stride < 1) stride = 1;
+ if(sample < 1) sample = 1;
+ int minw = (w1 < w2) ? w1 : w2;
+ int minh = (h1 < h2) ? h1 : h2;
+ int minc = (c1 < c2) ? c1 : c2;
+
int i,j,k,b;
for(b = 0; b < batch; ++b){
- for(k = 0; k < c && k < c2; ++k){
- for(j = 0; j < h/sample; ++j){
- for(i = 0; i < w/sample; ++i){
- int out_index = i*sample + w*(j*sample + h*(k + c*b));
- int add_index = b*w*stride/sample*h*stride/sample*c2 + i*stride + w*stride/sample*(j*stride + h*stride/sample*k);
+ for(k = 0; k < minc; ++k){
+ for(j = 0; j < minh; ++j){
+ for(i = 0; i < minw; ++i){
+ int out_index = i*sample + w2*(j*sample + h2*(k + c2*b));
+ int add_index = i*stride + w1*(j*stride + h1*(k + c1*b));
out[out_index] += add[add_index];
}
}
@@ -56,7 +67,7 @@
for(f = 0; f < filters; ++f){
for(i = 0; i < spatial; ++i){
int index = b*filters*spatial + f*spatial + i;
- x[index] = (x[index] - mean[f])/(sqrt(variance[f]));
+ x[index] = (x[index] - mean[f])/(sqrt(variance[f]) + .00001f);
}
}
}
@@ -104,6 +115,16 @@
for(i = 0; i < N; ++i) Y[i*INCY] = X[i*INCX];
}
+void smooth_l1_cpu(int n, float *pred, float *truth, float *delta)
+{
+ int i;
+ for(i = 0; i < n; ++i){
+ float diff = truth[i] - pred[i];
+ if(fabs(diff) > 1) delta[i] = diff;
+ else delta[i] = (diff > 0) ? 1 : -1;
+ }
+}
+
float dot_cpu(int N, float *X, int INCX, float *Y, int INCY)
{
int i;
--
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