fix tests

Author: divyegala

cpp/src/detail/jit_lto/AlgorithmPlanner.cu

@@ -53,6 +53,7 @@ std::shared_ptr<AlgorithmLauncher> AlgorithmPlanner::get_launcher()
   static std::mutex cache_mutex;
   std::lock_guard<std::mutex> lock(cache_mutex);
   if (launchers.count(launch_key) == 0) {
+    RAFT_LOG_INFO("A first time JIT compilation has been triggered for your algorithm.");
     add_entrypoint();
     add_device_functions();
     std::string log_message =
@@ -61,7 +62,7 @@ std::shared_ptr<AlgorithmLauncher> AlgorithmPlanner::get_launcher()
       log_message += device_function + ",";
     }
     log_message.pop_back();
-    RAFT_LOG_INFO("%s", log_message.c_str());
+    RAFT_LOG_DEBUG("%s", log_message.c_str());
     launchers[launch_key] = this->build();
   }
   return launchers[launch_key];

cpp/src/neighbors/ivf_flat/ivf_flat_interleaved_scan_jit.cuh

@@ -190,7 +190,7 @@ void launch_kernel(const index<T, IdxT>& index,
     std::string metric_name  = "metric_udf_" + udf_hash;
     auto& nvrtc_lto_compiler = nvrtc_compiler();
     std::string key =
-      metric_name + "_" + std::to_string(Veclen) + "_" +
+      metric_name + "_veclen_" + std::to_string(Veclen) + "_" +
       make_fragment_key<decltype(get_data_type_tag<T>()), decltype(get_acc_type_tag<AccT>())>();
     nvrtc_lto_compiler.compile(key, metric_udf);
     kernel_planner.template add_metric_device_function<decltype(get_data_type_tag<T>()),