Release notes

Author: jlblancoc

CHANGELOG.md

@@ -1,5 +1,6 @@
-# nanoflann 1.5.5: UNRELEASED
- - (none yet)
+# nanoflann 1.5.5: Released Mar 12, 2024
+ - Potentially more efficient scheduling of multi-thread index building ([PR #236](https://github.com/jlblancoc/nanoflann/pull/236))
+ - Bump minimum required cmake version to 3.5 ([PR #230](https://github.com/jlblancoc/nanoflann/pull/230/))
 
 # nanoflann 1.5.4: Released Jan 10, 2024
  - Fix outdated NANOFLANN_VERSION macro in header file

README.md

@@ -197,6 +197,8 @@ This parameter is really ignored in `nanoflann`, but was kept for backward compa
 
 This parameter determines the maximum number of threads that can be called concurrently during the construction of the KD tree. The default value is 1. When the parameter is set to 0, `nanoflann` automatically determines the number of threads to use.
 
+See [this pull request](https://github.com/jlblancoc/nanoflann/pull/236) for some benchmarking showing that using the maximum number of threads is not always the most efficient approach. Do benchmarking on your data!
+
 -----
 
 ## 3. Performance

include/nanoflann.hpp

@@ -1246,8 +1246,8 @@ class KDTreeBaseClass
 
             BoundingBox left_bbox(bbox);
             left_bbox[cutfeat].high = cutval;
-            node->child1 = this->divideTreeConcurrent(
-                obj, left, left + idx, left_bbox, thread_count, mutex);
+            node->child1            = this->divideTreeConcurrent(
+                           obj, left, left + idx, left_bbox, thread_count, mutex);
 
             if (right_future.valid())
             {