Update cagra C API enums to have more long term stable values (#1436)

Authors:
  - Robert Maynard (https://github.com/robertmaynard)

Approvers:
  - Ben Frederickson (https://github.com/benfred)

URL: #1436

Author: robertmaynard

c/include/cuvs/neighbors/cagra.h

@@ -214,14 +214,14 @@ enum cuvsCagraSearchAlgo {
   /** For small batch sizes. */
   MULTI_CTA    = 1,
   MULTI_KERNEL = 2,
-  AUTO         = 3
+  AUTO         = 100
 };
 
 /**
  * @brief Enum to denote Hash Mode used while searching CAGRA index
  *
  */
-enum cuvsCagraHashMode { HASH = 0, SMALL = 1, AUTO_HASH = 2 };
+enum cuvsCagraHashMode { HASH = 0, SMALL = 1, AUTO_HASH = 100 };
 
 /**
  * @brief Supplemental parameters to search CAGRA index

cpp/include/cuvs/neighbors/cagra.hpp

@@ -133,10 +133,10 @@ enum class search_algo {
   /** For small batch sizes. */
   MULTI_CTA    = 1,
   MULTI_KERNEL = 2,
-  AUTO         = 3
+  AUTO         = 100
 };
 
-enum class hash_mode { HASH = 0, SMALL = 1, AUTO = 2 };
+enum class hash_mode { HASH = 0, SMALL = 1, AUTO = 100 };
 
 struct search_params : cuvs::neighbors::search_params {
   /** Maximum number of queries to search at the same time (batch size). Auto select when 0.*/

java/cuvs-java/src/main/java/com/nvidia/cuvs/CagraSearchParams.java

@@ -56,7 +56,7 @@ public enum SearchAlgo {
     /**
      * AUTO
      */
-    AUTO(3);
+    AUTO(100);
 
     /**
      * The value for the enum choice.
@@ -83,7 +83,7 @@ public enum HashMapMode {
     /**
      * AUTO_HASH
      */
-    AUTO_HASH(2);
+    AUTO_HASH(100);
 
     /**
      * The value for the enum choice.