Fix distance

Author: mihaic

experiments/configurations/cohere-calibration.json

@@ -132,7 +132,7 @@
       "data_type": "FLOAT16",
       "svs-vamana_config": {
         "NUM_THREADS": 16,
-        "DISTANCE_METRIC": "L2",
+        "DISTANCE_METRIC": "IP",
         "GRAPH_MAX_DEGREE": 64,
         "CONSTRUCTION_WINDOW_SIZE": 200,
         "compression": "GlobalSQ8"
@@ -165,7 +165,7 @@
       "data_type": "FLOAT32",
       "svs-vamana_config": {
         "NUM_THREADS": 16,
-        "DISTANCE_METRIC": "L2",
+        "DISTANCE_METRIC": "IP",
         "GRAPH_MAX_DEGREE": 64,
         "CONSTRUCTION_WINDOW_SIZE": 200,
         "compression": "GlobalSQ8"