From a99050f0c8cb0315fa31e3d1fa3e38594fe5e40a Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Mon, 08 Dec 2014 04:16:21 +0000
Subject: [PATCH] Some fixes to momentum
---
src/connected_layer.c | 28 +++++++++++++---------------
1 files changed, 13 insertions(+), 15 deletions(-)
diff --git a/src/connected_layer.c b/src/connected_layer.c
index bcca631..85bf5c8 100644
--- a/src/connected_layer.c
+++ b/src/connected_layer.c
@@ -24,22 +24,20 @@
layer->delta = calloc(batch*outputs, sizeof(float*));
layer->weight_updates = calloc(inputs*outputs, sizeof(float));
- //layer->weight_adapt = calloc(inputs*outputs, sizeof(float));
layer->weights = calloc(inputs*outputs, sizeof(float));
float scale = 1./inputs;
scale = .01;
- for(i = 0; i < inputs*outputs; ++i)
- layer->weights[i] = scale*2*(rand_uniform()-.5);
-
- layer->bias_updates = calloc(outputs, sizeof(float));
- //layer->bias_adapt = calloc(outputs, sizeof(float));
- layer->biases = calloc(outputs, sizeof(float));
- for(i = 0; i < outputs; ++i){
- //layer->biases[i] = rand_normal()*scale + scale;
- layer->biases[i] = 1;
+ for(i = 0; i < inputs*outputs; ++i){
+ layer->weights[i] = scale*rand_normal();
}
- #ifdef GPU
+ layer->bias_updates = calloc(outputs, sizeof(float));
+ layer->biases = calloc(outputs, sizeof(float));
+ for(i = 0; i < outputs; ++i){
+ layer->biases[i] = .01;
+ }
+
+#ifdef GPU
layer->weights_cl = cl_make_array(layer->weights, inputs*outputs);
layer->biases_cl = cl_make_array(layer->biases, outputs);
@@ -48,7 +46,7 @@
layer->output_cl = cl_make_array(layer->output, outputs*batch);
layer->delta_cl = cl_make_array(layer->delta, outputs*batch);
- #endif
+#endif
layer->activation = activation;
fprintf(stderr, "Connected Layer: %d inputs, %d outputs\n", inputs, outputs);
return layer;
@@ -59,7 +57,7 @@
axpy_cpu(layer.outputs, layer.learning_rate, layer.bias_updates, 1, layer.biases, 1);
scal_cpu(layer.outputs, layer.momentum, layer.bias_updates, 1);
- scal_cpu(layer.inputs*layer.outputs, 1.-layer.learning_rate*layer.decay, layer.weights, 1);
+ axpy_cpu(layer.inputs*layer.outputs, -layer.decay, layer.weights, 1, layer.weight_updates, 1);
axpy_cpu(layer.inputs*layer.outputs, layer.learning_rate, layer.weight_updates, 1, layer.weights, 1);
scal_cpu(layer.inputs*layer.outputs, layer.momentum, layer.weight_updates, 1);
}
@@ -129,7 +127,7 @@
axpy_ongpu(layer.outputs, layer.learning_rate, layer.bias_updates_cl, 1, layer.biases_cl, 1);
scal_ongpu(layer.outputs, layer.momentum, layer.bias_updates_cl, 1);
- scal_ongpu(layer.inputs*layer.outputs, 1.-layer.learning_rate*layer.decay, layer.weights_cl, 1);
+ axpy_ongpu(layer.inputs*layer.outputs, -layer.decay, layer.weights_cl, 1, layer.weight_updates_cl, 1);
axpy_ongpu(layer.inputs*layer.outputs, layer.learning_rate, layer.weight_updates_cl, 1, layer.weights_cl, 1);
scal_ongpu(layer.inputs*layer.outputs, layer.momentum, layer.weight_updates_cl, 1);
pull_connected_layer(layer);
@@ -176,4 +174,4 @@
if(c) gemm_ongpu(0,1,m,n,k,1,a,k,b,k,0,c,n);
}
- #endif
+#endif
--
Gitblit v1.10.0