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* Restructuring TOC Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> * Resolve merge conflicts Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> * More foundational rewrites of ML Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> * TOC restructure Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> * Rename and rewrite search pages and add keyword search Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> * Small wording change Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> * Small wording change Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> * Updated response Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> * Apply suggestions from code review Co-authored-by: Melissa Vagi <vagimeli@amazon.com> Signed-off-by: kolchfa-aws <105444904+kolchfa-aws@users.noreply.github.com> * Small rewording Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> * Move neural search to top of vector search list Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> * Change terminology Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> * Reorganize search methods list Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> * Rename links Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> * More link renames Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> * Apply suggestions from code review Co-authored-by: Nathan Bower <nbower@amazon.com> Signed-off-by: kolchfa-aws <105444904+kolchfa-aws@users.noreply.github.com> * Implemented editorial comments Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> --------- Signed-off-by: Fanit Kolchina <kolchfa@amazon.com> Signed-off-by: kolchfa-aws <105444904+kolchfa-aws@users.noreply.github.com> Co-authored-by: Melissa Vagi <vagimeli@amazon.com> Co-authored-by: Nathan Bower <nbower@amazon.com>
24 lines
1.3 KiB
Markdown
24 lines
1.3 KiB
Markdown
---
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layout: default
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title: JNI libraries
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nav_order: 35
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parent: k-NN search
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grand_parent: Search methods
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has_children: false
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redirect_from:
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- /search-plugins/knn/jni-library/
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---
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# JNI libraries
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To integrate [nmslib](https://github.com/nmslib/nmslib/) and [faiss](https://github.com/facebookresearch/faiss/) approximate k-NN functionality (implemented in C++) into the k-NN plugin (implemented in Java), we created a Java Native Interface, which lets the k-NN plugin make calls to the native libraries. The interface includes three libraries: `libopensearchknn_nmslib`, the JNI library that interfaces with nmslib, `libopensearchknn_faiss`, the JNI library that interfaces with faiss, and `libopensearchknn_common`, a library containing common shared functionality between native libraries.
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The Lucene library is not implemented using a native library.
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{: .note}
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The libraries `libopensearchknn_faiss` and `libopensearchknn_nmslib` are lazily loaded when they are first called in the plugin. This means that if you are only planning on using one of the libraries, the plugin never loads the other library.
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To build the libraries from source, refer to the [DEVELOPER_GUIDE](https://github.com/opensearch-project/k-NN/blob/main/DEVELOPER_GUIDE.md).
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For more information about JNI, see [Java Native Interface](https://en.wikipedia.org/wiki/Java_Native_Interface) on Wikipedia.
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