Add DefaultMinerThreads chain parameter

src/chainparams.cpp

@@ -112,6 +112,7 @@ public:
         nRPCPort = 8332;
         bnProofOfWorkLimit = ~uint256(0) >> 32;
         nSubsidyHalvingInterval = 210000;
+        nMinerThreads = 0;
 
         // Build the genesis block. Note that the output of the genesis coinbase cannot
         // be spent as it did not originally exist in the database.
@@ -233,6 +234,7 @@ public:
         pchMessageStart[2] = 0xb5;
         pchMessageStart[3] = 0xda;
         nSubsidyHalvingInterval = 150;
+        nMinerThreads = 1;
         bnProofOfWorkLimit = ~uint256(0) >> 1;
         genesis.nTime = 1296688602;
         genesis.nBits = 0x207fffff;