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GBTree::Predict performance fix: removed excess thread_temp initialization

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This commit is contained in:
yoori 2015-10-20 00:06:00 +04:00
parent fd8439ffbc
commit c0853967d5
1 changed files with 12 additions and 6 deletions
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18
src/gbm/gbtree-inl.hpp
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@ -138,9 +138,12 @@ class GBTree : public IGradBooster {
{
nthread = omp_get_num_threads();
}
thread_temp.resize(nthread, tree::RegTree::FVec());
for (int i = 0; i < nthread; ++i) {
thread_temp[i].Init(mparam.num_feature);
int prev_thread_temp_size = thread_temp.size();
if(prev_thread_temp_size < nthread) {
thread_temp.resize(nthread, tree::RegTree::FVec());
for (int i = prev_thread_temp_size; i < nthread; ++i) {
thread_temp[i].Init(mparam.num_feature);
}
}
std::vector<float> &preds = *out_preds;
const size_t stride = info.num_row * mparam.num_output_group;
@ -194,9 +197,12 @@ class GBTree : public IGradBooster {
{
nthread = omp_get_num_threads();
}
thread_temp.resize(nthread, tree::RegTree::FVec());
for (int i = 0; i < nthread; ++i) {
thread_temp[i].Init(mparam.num_feature);
int prev_thread_temp_size = thread_temp.size();
if(prev_thread_temp_size < nthread) {
thread_temp.resize(nthread, tree::RegTree::FVec());
for (int i = prev_thread_temp_size; i < nthread; ++i) {
thread_temp[i].Init(mparam.num_feature);
}
}
this->PredPath(p_fmat, info, out_preds, ntree_limit);
}