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VWDictionary: use multi-core FLANN kNN search (#1760)

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* VWDictionary: use multi-core FLANN kNN search

* Add parameter with default 1 thread

* Kp/FlannTreads plumbing  to UI. Also added to performance tests for comparison.

* fixing ci error

* dump debug data for windows ci

* Adding  more dll debugging report windows ci

* install vc2012 runtime explicitly

* updated comment

---------

Co-authored-by: matlabbe <[email protected]>
This commit is contained in:
Torjus Iveland
2026-09-10 23:22:00 -07:00
committed by GitHub
co-authored by matlabbe
parent fb457255b7
commit 2fbbe19d70
10 changed files with 283 additions and 32 deletions
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guilib/src/PreferencesDialog.cpp
+1
View File
@@ -1141,6 +1141,7 @@ PreferencesDialog::PreferencesDialog(QWidget * parent) :
_ui->checkBox_kp_incrementalFlann->setObjectName(Parameters::kKpIncrementalFlann().c_str());
_ui->checkBox_kp_byteToFloat->setObjectName(Parameters::kKpByteToFloat().c_str());
_ui->surf_doubleSpinBox_rebalancingFactor->setObjectName(Parameters::kKpFlannRebalancingFactor().c_str());
_ui->spinBox_kp_flannThreads->setObjectName(Parameters::kKpFlannThreads().c_str());
_ui->comboBox_detector_strategy->setObjectName(Parameters::kKpDetectorStrategy().c_str());
_ui->surf_doubleSpinBox_nndrRatio->setObjectName(Parameters::kKpNndrRatio().c_str());
_ui->surf_doubleSpinBox_maxDepth->setObjectName(Parameters::kKpMaxDepth().c_str());
guilib/src/ui/preferencesDialog.ui
+29
View File
@@ -12185,6 +12185,35 @@ When set to false, no new words are added to dictionary, so no more updates are
</property>
</widget>
</item>
<item row="12" column="0">
<widget class="QSpinBox" name="spinBox_kp_flannThreads">
<property name="specialValueText">
<string>Auto</string>
</property>
<property name="minimum">
<number>0</number>
</property>
<property name="maximum">
<number>128</number>
</property>
<property name="value">
<number>1</number>
</property>
</widget>
</item>
<item row="12" column="2">
<widget class="QLabel" name="label_kp_flannThreads">
<property name="text">
<string>Number of threads used for FLANN kNN search of the batched queries (Auto=one per core, 1=single-threaded search).</string>
</property>
<property name="wordWrap">
<bool>true</bool>
</property>
<property name="textInteractionFlags">
<set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByMouse</set>
</property>
</widget>
</item>
</layout>
</widget>
</item>