Initialize randomx dataset with 2 threads

src/miner.cpp

@@ -1168,13 +1168,15 @@ void static RandomXMiner()
 
             auto datasetItemCount = randomx_dataset_item_count();
             rxdebug("%s: dataset items=%lu\n", datasetItemCount);
+
             //TODO: this is hardcoded to use 2 threads instead of the number of mining threads
-            //std::thread t1(&randomx_init_dataset, randomxDataset, randomxCache, 0, datasetItemCount / 2);
-            //std::thread t2(&randomx_init_dataset, randomxDataset, randomxCache, datasetItemCount / 2, datasetItemCount - datasetItemCount / 2);
-            //t1.join();
-            //t2.join();
+            rxdebug("%s: initializing dataset with 2 threads\n");
+            std::thread t1(&randomx_init_dataset, randomxDataset, randomxCache, 0, datasetItemCount / 2);
+            std::thread t2(&randomx_init_dataset, randomxDataset, randomxCache, datasetItemCount / 2, datasetItemCount - datasetItemCount / 2);
+            t1.join();
+            t2.join();
 
-            randomx_init_dataset(randomxDataset, randomxCache, 0, datasetItemCount);
+            // randomx_init_dataset(randomxDataset, randomxCache, 0, datasetItemCount);
             rxdebug("%s: dataset initialized\n");
 
             randomx_vm *myVM = randomx_create_vm(flags, nullptr, randomxDataset);