From e7688a05a194e3c8baf3c11fbf09b7f5e8640a77 Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Wed, 06 May 2015 21:08:16 +0000
Subject: [PATCH] no idea
---
src/cost_layer.c | 31 ++++++++++++++++++++++---------
1 files changed, 22 insertions(+), 9 deletions(-)
diff --git a/src/cost_layer.c b/src/cost_layer.c
index d2c616f..1f36232 100644
--- a/src/cost_layer.c
+++ b/src/cost_layer.c
@@ -10,6 +10,7 @@
COST_TYPE get_cost_type(char *s)
{
if (strcmp(s, "sse")==0) return SSE;
+ if (strcmp(s, "masked")==0) return MASKED;
fprintf(stderr, "Couldn't find activation function %s, going with SSE\n", s);
return SSE;
}
@@ -19,6 +20,8 @@
switch(a){
case SSE:
return "sse";
+ case MASKED:
+ return "masked";
}
return "sse";
}
@@ -38,18 +41,15 @@
return layer;
}
-void pull_cost_layer(cost_layer layer)
-{
- cuda_pull_array(layer.delta_gpu, layer.delta, layer.batch*layer.inputs);
-}
-void push_cost_layer(cost_layer layer)
-{
- cuda_push_array(layer.delta_gpu, layer.delta, layer.batch*layer.inputs);
-}
-
void forward_cost_layer(cost_layer layer, network_state state)
{
if (!state.truth) return;
+ if(layer.type == MASKED){
+ int i;
+ for(i = 0; i < layer.batch*layer.inputs; ++i){
+ if(state.truth[i] == 0) state.input[i] = 0;
+ }
+ }
copy_cpu(layer.batch*layer.inputs, state.truth, 1, layer.delta, 1);
axpy_cpu(layer.batch*layer.inputs, -1, state.input, 1, layer.delta, 1);
*(layer.output) = dot_cpu(layer.batch*layer.inputs, layer.delta, 1, layer.delta, 1);
@@ -63,9 +63,22 @@
#ifdef GPU
+void pull_cost_layer(cost_layer layer)
+{
+ cuda_pull_array(layer.delta_gpu, layer.delta, layer.batch*layer.inputs);
+}
+
+void push_cost_layer(cost_layer layer)
+{
+ cuda_push_array(layer.delta_gpu, layer.delta, layer.batch*layer.inputs);
+}
+
void forward_cost_layer_gpu(cost_layer layer, network_state state)
{
if (!state.truth) return;
+ if (layer.type == MASKED) {
+ mask_ongpu(layer.batch*layer.inputs, state.input, state.truth);
+ }
copy_ongpu(layer.batch*layer.inputs, state.truth, 1, layer.delta_gpu, 1);
axpy_ongpu(layer.batch*layer.inputs, -1, state.input, 1, layer.delta_gpu, 1);
--
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