Use multithreading to fetch text embeddings

nxontology_ml/text_embeddings/text_embeddings_transformer.py

@@ -1,3 +1,6 @@
+import os
+from concurrent.futures import ThreadPoolExecutor
+
 import numpy as np
 import pandas as pd
 from sklearn.base import TransformerMixin
@@ -29,11 +32,13 @@ def __init__(
         lda: LDA | None,
         pca: PCA | None,
         embedding_model: AutoModelEmbeddings,
+        max_workers: int | None = None,
     ):
         self._enabled = enabled
         self._lda = lda
         self._pca = pca
         self._embedding_model = embedding_model
+        self._max_workers = max_workers or os.cpu_count() or 1
 
     def fit(
         self,
@@ -78,15 +83,18 @@ def transform(self, X: NodeFeatures, copy: bool | None = None) -> NodeFeatures:
         return X
 
     def _nodes_to_vec(self, X: NodeFeatures) -> np.ndarray:
-        embedded_nodes: list[np.array] = []
-        for node in tqdm(
-            X.nodes,
-            desc="Fetching node embeddings",
-            delay=5,
-        ):
-            embedded_nodes.append(self._embedding_model.embed_node(node))
-
-        return np.array(embedded_nodes)
+        with ThreadPoolExecutor(max_workers=self._max_workers) as executor:
+            parallel_it = executor.map(self._embedding_model.embed_node, X.nodes)
+            return np.array(
+                list(
+                    tqdm(
+                        parallel_it,
+                        desc="Fetching node embeddings",
+                        total=len(X.nodes),
+                        delay=5,
+                    )
+                )
+            )
 
     @classmethod
     def from_config(