Merge branch 'develop' of https://github.com/ethereum/cpp-ethereum into bc

cmake/EthCompilerSettings.cmake

@@ -55,6 +55,11 @@ else ()
 	message(WARNING "Your compiler is not tested, if you run into any issues, we'd welcome any patches.")
 endif ()
 
+# Set stack memory limits
+if (APPLE)
+	set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-stack_size,1000000")
+endif()
+
 if (PROFILING AND (("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU") OR ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")))
 	set(CMAKE_CXX_FLAGS "-g ${CMAKE_CXX_FLAGS}")
 	set(CMAKE_C_FLAGS "-g ${CMAKE_C_FLAGS}")

eth/main.cpp

@@ -93,6 +93,7 @@ void interactiveHelp()
 		<< "    accounts  Gives information on all owned accounts (balances, mining beneficiary and default signer)." << endl
 		<< "    newaccount <name>  Creates a new account with the given name." << endl
 		<< "    transact  Execute a given transaction." << endl
+		<< "    transactnonce  Execute a given transaction with a specified nonce." << endl
 		<< "    txcreate  Execute a given contract creation transaction." << endl
 		<< "    send  Execute a given transaction with current secret." << endl
 		<< "    contract  Create a new contract with current secret." << endl
@@ -108,6 +109,7 @@ void interactiveHelp()
 		<< "    exportconfig <path>  Export the config (.RLP) to the path provided." << endl
 		<< "    importconfig <path>  Import the config (.RLP) from the path provided." << endl
 		<< "    inspect <contract>  Dumps a contract to <APPDATA>/<contract>.evm." << endl
+		<< "    reprocess <block>  Reprocess a given block." << endl
 		<< "    dumptrace <block> <index> <filename> <format>  Dumps a transaction trace" << endl << "to <filename>. <format> should be one of pretty, standard, standard+." << endl
 		<< "    dumpreceipt <block> <index>  Dumps a transation receipt." << endl
 		<< "    exit  Exits the application." << endl;
@@ -806,13 +808,19 @@ int main(int argc, char** argv)
 
 	cout << "Transaction Signer: " << signingKey << endl;
 	cout << "Mining Benefactor: " << beneficiary << endl;
-	web3.startNetwork();
-	cout << "Node ID: " << web3.enode() << endl;
+
+	if (bootstrap || !remoteHost.empty())
+	{
+		web3.startNetwork();
+		cout << "Node ID: " << web3.enode() << endl;
+	}
+	else
+		cout << "Networking disabled. To start, use netstart or pass -b or a remote host." << endl;
 
 	if (bootstrap)
 		for (auto const& i: Host::pocHosts())
 			web3.requirePeer(i.first, i.second);
-	if (remoteHost.size())
+	if (!remoteHost.empty())
 		web3.addNode(p2p::NodeId(), remoteHost + ":" + toString(remotePort));
 
 #if ETH_JSONRPC || !ETH_TRUE
@@ -1175,6 +1183,75 @@ int main(int argc, char** argv)
 				else
 					cwarn << "Require parameters: submitTransaction ADDRESS AMOUNT GASPRICE GAS SECRET DATA";
 			}
+
+			else if (c && cmd == "transactnonce")
+			{
+				auto const& bc =c->blockChain();
+				auto h = bc.currentHash();
+				auto blockData = bc.block(h);
+				BlockInfo info(blockData);
+				if (iss.peek() != -1)
+				{
+					string hexAddr;
+					u256 amount;
+					u256 gasPrice;
+					u256 gas;
+					string sechex;
+					string sdata;
+					u256 nonce;
+
+					iss >> hexAddr >> amount >> gasPrice >> gas >> sechex >> sdata >> nonce;
+
+					if (!gasPrice)
+						gasPrice = gasPricer->bid(priority);
+
+					cnote << "Data:";
+					cnote << sdata;
+					bytes data = dev::eth::parseData(sdata);
+					cnote << "Bytes:";
+					string sbd = asString(data);
+					bytes bbd = asBytes(sbd);
+					stringstream ssbd;
+					ssbd << bbd;
+					cnote << ssbd.str();
+					int ssize = sechex.length();
+					int size = hexAddr.length();
+					u256 minGas = (u256)Transaction::gasRequired(data, 0);
+					if (size < 40)
+					{
+						if (size > 0)
+							cwarn << "Invalid address length:" << size;
+					}
+					else if (gas < minGas)
+						cwarn << "Minimum gas amount is" << minGas;
+					else if (ssize < 40)
+					{
+						if (ssize > 0)
+							cwarn << "Invalid secret length:" << ssize;
+					}
+					else
+					{
+						try
+						{
+							Secret secret = h256(fromHex(sechex));
+							Address dest = h160(fromHex(hexAddr));
+							c->submitTransaction(secret, amount, dest, data, gas, gasPrice, nonce);
+						}
+						catch (BadHexCharacter& _e)
+						{
+							cwarn << "invalid hex character, transaction rejected";
+							cwarn << boost::diagnostic_information(_e);
+						}
+						catch (...)
+						{
+							cwarn << "transaction rejected";
+						}
+					}
+				}
+				else
+					cwarn << "Require parameters: submitTransaction ADDRESS AMOUNT GASPRICE GAS SECRET DATA NONCE";
+			}
+
 			else if (c && cmd == "txcreate")
 			{
 				auto const& bc =c->blockChain();
@@ -1403,6 +1480,22 @@ int main(int argc, char** argv)
 				cout << "Hex: " << toHex(rb) << endl;
 				cout << r << endl;
 			}
+			else if (c && cmd == "reprocess")
+			{
+				string block;
+				iss >> block;
+				h256 blockHash;
+				try
+				{
+					if (block.size() == 64 || block.size() == 66)
+						blockHash = h256(block);
+					else
+						blockHash = c->blockChain().numberHash(stoi(block));
+					c->state(blockHash);
+				}
+				catch (...)
+				{}
+			}
 			else if (c && cmd == "dumptrace")
 			{
 				unsigned block;

ethminer/MinerAux.h

@@ -30,6 +30,7 @@
 
 #include <boost/algorithm/string.hpp>
 #include <boost/algorithm/string/trim_all.hpp>
+#include <boost/optional.hpp>
 
 #include <libdevcore/FileSystem.h>
 #include <libevmcore/Instruction.h>
@@ -97,11 +98,11 @@ public:
 		if ((arg == "-F" || arg == "--farm") && i + 1 < argc)
 		{
 			mode = OperationMode::Farm;
-			farmURL = argv[++i];
+			m_farmURL = argv[++i];
 		}
 		else if (arg == "--farm-recheck" && i + 1 < argc)
 			try {
-				farmRecheckPeriod = stol(argv[++i]);
+				m_farmRecheckPeriod = stol(argv[++i]);
 			}
 			catch (...)
 			{
@@ -110,7 +111,7 @@ public:
 			}
 		else if (arg == "--opencl-platform" && i + 1 < argc)
 			try {
-				openclPlatform = stol(argv[++i]);
+				m_openclPlatform = stol(argv[++i]);
 			}
 			catch (...)
 			{
@@ -119,8 +120,8 @@ public:
 			}
 		else if (arg == "--opencl-device" && i + 1 < argc)
 			try {
-				openclDevice = stol(argv[++i]);
-				miningThreads = 1;
+				m_openclDevice = stol(argv[++i]);
+				m_miningThreads = 1;
 			}
 			catch (...)
 			{
@@ -128,17 +129,18 @@ public:
 				throw BadArgument();
 			}
 		else if (arg == "--list-devices")
-		{
-			ProofOfWork::GPUMiner::listDevices();
-			exit(0);
-		}
+			m_shouldListDevices = true;
+		else if (arg == "--allow-opencl-cpu")
+			m_clAllowCPU = true;
+		else if (arg == "--cl-extragpu-mem" && i + 1 < argc)
+			m_extraGPUMemory = 1000000 * stol(argv[++i]);
 		else if (arg == "--phone-home" && i + 1 < argc)
 		{
 			string m = argv[++i];
 			if (isTrue(m))
-				phoneHome = true;
+				m_phoneHome = true;
 			else if (isFalse(m))
-				phoneHome = false;
+				m_phoneHome = false;
 			else
 			{
 				cerr << "Bad " << arg << " option: " << m << endl;
@@ -147,7 +149,7 @@ public:
 		}
 		else if (arg == "--benchmark-warmup" && i + 1 < argc)
 			try {
-				benchmarkWarmup = stol(argv[++i]);
+				m_benchmarkWarmup = stol(argv[++i]);
 			}
 			catch (...)
 			{
@@ -156,7 +158,7 @@ public:
 			}
 		else if (arg == "--benchmark-trial" && i + 1 < argc)
 			try {
-				benchmarkTrial = stol(argv[++i]);
+				m_benchmarkTrial = stol(argv[++i]);
 			}
 			catch (...)
 			{
@@ -165,7 +167,7 @@ public:
 			}
 		else if (arg == "--benchmark-trials" && i + 1 < argc)
 			try {
-				benchmarkTrials = stol(argv[++i]);
+				m_benchmarkTrials = stol(argv[++i]);
 			}
 			catch (...)
 			{
@@ -175,21 +177,12 @@ public:
 		else if (arg == "-C" || arg == "--cpu")
 			m_minerType = MinerType::CPU;
 		else if (arg == "-G" || arg == "--opencl")
-		{
-			if (!ProofOfWork::GPUMiner::configureGPU())
-			{
-				cout << "No GPU device with sufficient memory was found. Defaulting to CPU" << endl;
-				m_minerType = MinerType::CPU;
-			}
-			else
-			{
-				m_minerType = MinerType::GPU;
-				miningThreads = 1;
-			}
-		}
+			m_minerType = MinerType::GPU;
+		else if (arg == "--current-block" && i + 1 < argc)
+			m_currentBlock = stol(argv[++i]);
 		else if (arg == "--no-precompute")
 		{
-			precompute = false;
+			m_precompute = false;
 		}
 		else if ((arg == "-D" || arg == "--create-dag") && i + 1 < argc)
 		{
@@ -197,7 +190,7 @@ public:
 			mode = OperationMode::DAGInit;
 			try
 			{
-				initDAG = stol(m);
+				m_initDAG = stol(m);
 			}
 			catch (...)
 			{
@@ -247,7 +240,7 @@ public:
 		else if ((arg == "-t" || arg == "--mining-threads") && i + 1 < argc)
 		{
 			try {
-				miningThreads = stol(argv[++i]);
+				m_miningThreads = stol(argv[++i]);
 			}
 			catch (...)
 			{
@@ -262,20 +255,35 @@ public:
 
 	void execute()
 	{
+		if (m_shouldListDevices)
+		{
+			ProofOfWork::GPUMiner::listDevices();
+			exit(0);
+		}
+
 		if (m_minerType == MinerType::CPU)
-			ProofOfWork::CPUMiner::setNumInstances(miningThreads);
+			ProofOfWork::CPUMiner::setNumInstances(m_miningThreads);
 		else if (m_minerType == MinerType::GPU)
 		{
-			ProofOfWork::GPUMiner::setDefaultPlatform(openclPlatform);
-			ProofOfWork::GPUMiner::setDefaultDevice(openclDevice);
-			ProofOfWork::GPUMiner::setNumInstances(miningThreads);
+			ProofOfWork::GPUMiner::setNumInstances(m_miningThreads);
+			if (!ProofOfWork::GPUMiner::configureGPU(
+					m_openclPlatform,
+					m_openclDevice,
+					m_clAllowCPU,
+					m_extraGPUMemory,
+					m_currentBlock
+				))
+			{
+				cout << "No GPU device with sufficient memory was found. Can't GPU mine. Remove the -G argument" << endl;
+				exit(1);
+			}
 		}
 		if (mode == OperationMode::DAGInit)
-			doInitDAG(initDAG);
+			doInitDAG(m_initDAG);
 		else if (mode == OperationMode::Benchmark)
-			doBenchmark(m_minerType, phoneHome, benchmarkWarmup, benchmarkTrial, benchmarkTrials);
+			doBenchmark(m_minerType, m_phoneHome, m_benchmarkWarmup, m_benchmarkTrial, m_benchmarkTrials);
 		else if (mode == OperationMode::Farm)
-			doFarm(m_minerType, farmURL, farmRecheckPeriod);
+			doFarm(m_minerType, m_farmURL, m_farmRecheckPeriod);
 	}
 
 	static void streamHelp(ostream& _out)
@@ -306,6 +314,10 @@ public:
 			<< "    --opencl-platform <n>  When mining using -G/--opencl use OpenCL platform n (default: 0)." << endl
 			<< "    --opencl-device <n>  When mining using -G/--opencl use OpenCL device n (default: 0)." << endl
 			<< "    -t, --mining-threads <n> Limit number of CPU/GPU miners to n (default: use everything available on selected platform)" << endl
+			<< "    --allow-opencl-cpu Allows CPU to be considered as an OpenCL device if the OpenCL platform supports it." << endl
+			<< "    --list-devices List the detected OpenCL devices and exit." <<endl
+			<< "    --current-block Let the miner know the current block number at configuration time. Will help determine DAG size and required GPU memory." <<endl
+			<< "    --cl-extragpu-mem Set the memory (in MB) you believe your GPU requires for stuff other than mining. Windows rendering e.t.c.." <<endl
 			;
 	}
 
@@ -441,7 +453,7 @@ private:
 						cnote << "Grabbing DAG for" << newSeedHash;
 					if (!(dag = EthashAux::full(newSeedHash, true, [&](unsigned _pc){ cout << "\rCreating DAG. " << _pc << "% done..." << flush; return 0; })))
 						BOOST_THROW_EXCEPTION(DAGCreationFailure());
-					if (precompute)
+					if (m_precompute)
 						EthashAux::computeFull(sha3(newSeedHash), true);
 					if (hh != current.headerHash)
 					{
@@ -490,22 +502,26 @@ private:
 
 	/// Mining options
 	MinerType m_minerType = MinerType::CPU;
-	unsigned openclPlatform = 0;
-	unsigned openclDevice = 0;
-	unsigned miningThreads = UINT_MAX;
-	unsigned dagChunks = 1;
+	unsigned m_openclPlatform = 0;
+	unsigned m_openclDevice = 0;
+	unsigned m_miningThreads = UINT_MAX;
+	bool m_shouldListDevices = false;
+	bool m_clAllowCPU = false;
+	boost::optional<uint64_t> m_currentBlock;
+	// default value is 350MB of GPU memory for other stuff (windows system rendering, e.t.c.)
+	unsigned m_extraGPUMemory = 350000000;
 
 	/// DAG initialisation param.
-	unsigned initDAG = 0;
+	unsigned m_initDAG = 0;
 
 	/// Benchmarking params
-	bool phoneHome = true;
-	unsigned benchmarkWarmup = 3;
-	unsigned benchmarkTrial = 3;
-	unsigned benchmarkTrials = 5;
+	bool m_phoneHome = true;
+	unsigned m_benchmarkWarmup = 3;
+	unsigned m_benchmarkTrial = 3;
+	unsigned m_benchmarkTrials = 5;
 
 	/// Farm params
-	string farmURL = "http://127.0.0.1:8545";
-	unsigned farmRecheckPeriod = 500;
-	bool precompute = true;
+	string m_farmURL = "http://127.0.0.1:8545";
+	unsigned m_farmRecheckPeriod = 500;
+	bool m_precompute = true;
 };

libdevcore/FixedHash.h

@@ -100,7 +100,7 @@ public:
 	FixedHash operator|(FixedHash const& _c) const { return FixedHash(*this) |= _c; }
 	FixedHash& operator&=(FixedHash const& _c) { for (unsigned i = 0; i < N; ++i) m_data[i] &= _c.m_data[i]; return *this; }
 	FixedHash operator&(FixedHash const& _c) const { return FixedHash(*this) &= _c; }
-	FixedHash& operator~() { for (unsigned i = 0; i < N; ++i) m_data[i] = ~m_data[i]; return *this; }
+	FixedHash operator~() const { FixedHash ret; for (unsigned i = 0; i < N; ++i) ret[i] = ~m_data[i]; return ret; }
 
 	/// @returns true if all bytes in @a _c are set in this object.
 	bool contains(FixedHash const& _c) const { return (*this & _c) == _c; }

libdevcore/vector_ref.h

@@ -43,7 +43,8 @@ public:
 	vector_ref<_T> cropped(size_t _begin) const { if (m_data && _begin <= m_count) return vector_ref<_T>(m_data + _begin, m_count - _begin); else return vector_ref<_T>(); }
 	void retarget(_T* _d, size_t _s) { m_data = _d; m_count = _s; }
 	void retarget(std::vector<_T> const& _t) { m_data = _t.data(); m_count = _t.size(); }
-	void copyTo(vector_ref<typename std::remove_const<_T>::type> _t) const { memcpy(_t.data(), m_data, std::min(_t.size(), m_count) * sizeof(_T)); }
+	template <class T> bool overlapsWith(vector_ref<T> _t) const { void const* f1 = data(); void const* t1 = data() + size(); void const* f2 = _t.data(); void const* t2 = _t.data() + _t.size(); return f1 < t2 && t1 > f2; }
+	void copyTo(vector_ref<typename std::remove_const<_T>::type> _t) const { if (overlapsWith(_t)) memmove(_t.data(), m_data, std::min(_t.size(), m_count) * sizeof(_T)); else memcpy(_t.data(), m_data, std::min(_t.size(), m_count) * sizeof(_T)); }
 	void populate(vector_ref<typename std::remove_const<_T>::type> _t) const { copyTo(_t); memset(_t.data() + m_count, 0, std::max(_t.size(), m_count) - m_count); }
 
 	_T* begin() { return m_data; }

libethash-cl/ethash_cl_miner.cpp

@@ -32,11 +32,11 @@
 #include <vector>
 #include <libethash/util.h>
 #include <libethash/ethash.h>
+#include <libethash/internal.h>
 #include "ethash_cl_miner.h"
 #include "ethash_cl_miner_kernel.h"
 
 #define ETHASH_BYTES 32
-#define ETHASH_CL_MINIMUM_MEMORY 2000000000
 
 // workaround lame platforms
 #if !CL_VERSION_1_2
@@ -51,6 +51,8 @@ using namespace std;
 
 // TODO: If at any point we can use libdevcore in here then we should switch to using a LogChannel
 #define ETHCL_LOG(_contents) cout << "[OPENCL]:" << _contents << endl
+// Types of OpenCL devices we are interested in
+#define ETHCL_QUERIED_DEVICE_TYPES (CL_DEVICE_TYPE_GPU | CL_DEVICE_TYPE_ACCELERATOR)
 
 static void addDefinition(string& _source, char const* _id, unsigned _value)
 {
@@ -82,9 +84,8 @@ string ethash_cl_miner::platform_info(unsigned _platformId, unsigned _deviceId)
 	}
 
 	// get GPU device of the selected platform
-	vector<cl::Device> devices;
 	unsigned platform_num = min<unsigned>(_platformId, platforms.size() - 1);
-	platforms[platform_num].getDevices(CL_DEVICE_TYPE_ALL, &devices);
+	vector<cl::Device> devices = getDevices(platforms, _platformId);
 	if (devices.empty())
 	{
 		ETHCL_LOG("No OpenCL devices found.");
@@ -99,6 +100,17 @@ string ethash_cl_miner::platform_info(unsigned _platformId, unsigned _deviceId)
 	return "{ \"platform\": \"" + platforms[platform_num].getInfo<CL_PLATFORM_NAME>() + "\", \"device\": \"" + device.getInfo<CL_DEVICE_NAME>() + "\", \"version\": \"" + device_version + "\" }";
 }
 
+std::vector<cl::Device> ethash_cl_miner::getDevices(std::vector<cl::Platform> const& _platforms, unsigned _platformId)
+{
+	vector<cl::Device> devices;
+	unsigned platform_num = min<unsigned>(_platformId, _platforms.size() - 1);
+	_platforms[platform_num].getDevices(
+		s_allowCPU ? CL_DEVICE_TYPE_ALL : ETHCL_QUERIED_DEVICE_TYPES,
+		&devices
+	);
+	return devices;
+}
+
 unsigned ethash_cl_miner::getNumPlatforms()
 {
 	vector<cl::Platform> platforms;
@@ -116,9 +128,7 @@ unsigned ethash_cl_miner::getNumDevices(unsigned _platformId)
 		return 0;
 	}
 
-	vector<cl::Device> devices;
-	unsigned platform_num = min<unsigned>(_platformId, platforms.size() - 1);
-	platforms[platform_num].getDevices(CL_DEVICE_TYPE_ALL, &devices);
+	vector<cl::Device> devices = getDevices(platforms, _platformId);
 	if (devices.empty())
 	{
 		ETHCL_LOG("No OpenCL devices found.");
@@ -127,13 +137,18 @@ unsigned ethash_cl_miner::getNumDevices(unsigned _platformId)
 	return devices.size();
 }
 
-bool ethash_cl_miner::configureGPU()
+bool ethash_cl_miner::configureGPU(bool _allowCPU, unsigned _extraGPUMemory, boost::optional<uint64_t> _currentBlock)
 {
-	return searchForAllDevices([](cl::Device const _device) -> bool
+	s_allowCPU = _allowCPU;
+	s_extraRequiredGPUMem = _extraGPUMemory;
+	// by default let's only consider the DAG of the first epoch
+	uint64_t dagSize = _currentBlock ? ethash_get_datasize(*_currentBlock) : 1073739904U;
+	uint64_t requiredSize =  dagSize + _extraGPUMemory;
+	return searchForAllDevices([&requiredSize](cl::Device const _device) -> bool
 		{
 			cl_ulong result;
 			_device.getInfo(CL_DEVICE_GLOBAL_MEM_SIZE, &result);
-			if (result >= ETHASH_CL_MINIMUM_MEMORY)
+			if (result >= requiredSize)
 			{
 				ETHCL_LOG(
 					"Found suitable OpenCL device [" << _device.getInfo<CL_DEVICE_NAME>()
@@ -145,13 +160,16 @@ bool ethash_cl_miner::configureGPU()
 			ETHCL_LOG(
 				"OpenCL device " << _device.getInfo<CL_DEVICE_NAME>()
 				<< " has insufficient GPU memory." << result <<
-				" bytes of memory found < " << ETHASH_CL_MINIMUM_MEMORY << " bytes of memory required"
+				" bytes of memory found < " << requiredSize << " bytes of memory required"
 			);
 			return false;
 		}
 	);
 }
 
+bool ethash_cl_miner::s_allowCPU = false;
+unsigned ethash_cl_miner::s_extraRequiredGPUMem;
+
 bool ethash_cl_miner::searchForAllDevices(function<bool(cl::Device const&)> _callback)
 {
 	vector<cl::Platform> platforms;
@@ -175,8 +193,7 @@ bool ethash_cl_miner::searchForAllDevices(unsigned _platformId, function<bool(cl
 	if (_platformId >= platforms.size())
 		return false;
 
-	vector<cl::Device> devices;
-	platforms[_platformId].getDevices(CL_DEVICE_TYPE_ALL, &devices);
+	vector<cl::Device> devices = getDevices(platforms, _platformId);
 	for (cl::Device const& device: devices)
 		if (_callback(device))
 			return true;
@@ -204,8 +221,7 @@ void ethash_cl_miner::doForAllDevices(unsigned _platformId, function<void(cl::De
 	if (_platformId >= platforms.size())
 		return;
 
-	vector<cl::Device> devices;
-	platforms[_platformId].getDevices(CL_DEVICE_TYPE_ALL, &devices);
+	vector<cl::Device> devices = getDevices(platforms, _platformId);
 	for (cl::Device const& device: devices)
 		_callback(device);
 }
@@ -253,8 +269,7 @@ bool ethash_cl_miner::init(
 		ETHCL_LOG("Using platform: " << platforms[_platformId].getInfo<CL_PLATFORM_NAME>().c_str());
 
 		// get GPU device of the default platform
-		vector<cl::Device> devices;
-		platforms[_platformId].getDevices(CL_DEVICE_TYPE_ALL, &devices);
+		vector<cl::Device> devices = getDevices(platforms, _platformId);
 		if (devices.empty())
 		{
 			ETHCL_LOG("No OpenCL devices found.");
@@ -267,9 +282,19 @@ bool ethash_cl_miner::init(
 		ETHCL_LOG("Using device: " << device.getInfo<CL_DEVICE_NAME>().c_str() << "(" << device_version.c_str() << ")");
 
 		// configure chunk number depending on max allocateable memory
-		cl_ulong result;		
+		cl_ulong result;
 		device.getInfo(CL_DEVICE_MAX_MEM_ALLOC_SIZE, &result);
-		m_dagChunksNum = result >= ETHASH_CL_MINIMUM_MEMORY ? 4 : 1;
+		if (result >= _dagSize)
+		{
+			m_dagChunksNum = 1;
+			ETHCL_LOG("Using 1 big chunk. Max OpenCL allocateable memory is" << result);
+		}
+		else
+		{
+			m_dagChunksNum = 4;
+			ETHCL_LOG("Using 4 chunks. Max OpenCL allocateable memory is" << result);
+		}
+
 		if (strncmp("OpenCL 1.0", device_version.c_str(), 10) == 0)
 		{
 			ETHCL_LOG("OpenCL 1.0 is not supported.");

libethash-cl/ethash_cl_miner.h

@@ -12,6 +12,7 @@
 #include "cl.hpp"
 #endif
 
+#include <boost/optional.hpp>
 #include <time.h>
 #include <functional>
 #include <libethash/ethash.h>
@@ -40,7 +41,7 @@ public:
 	static unsigned getNumDevices(unsigned _platformId = 0);
 	static std::string platform_info(unsigned _platformId = 0, unsigned _deviceId = 0);
 	static void listDevices();
-	static bool configureGPU();
+	static bool configureGPU(bool _allowCPU, unsigned _extraGPUMemory, boost::optional<uint64_t> _currentBlock);
 
 	bool init(
 		uint8_t const* _dag,
@@ -56,6 +57,9 @@ public:
 	void search_chunk(uint8_t const* header, uint64_t target, search_hook& hook);
 
 private:
+
+	static std::vector<cl::Device> getDevices(std::vector<cl::Platform> const& _platforms, unsigned _platformId);
+	
 	enum { c_max_search_results = 63, c_num_buffers = 2, c_hash_batch_size = 1024, c_search_batch_size = 1024*256 };
 
 	cl::Context m_context;
@@ -70,4 +74,9 @@ private:
 	unsigned m_workgroup_size;
 	bool m_opencl_1_1;
 
+	/// Allow CPU to appear as an OpenCL device or not. Default is false
+	static bool s_allowCPU;
+	/// GPU memory required for other things, like window rendering e.t.c.
+	/// User can set it via the --cl-extragpu-mem argument.
+	static unsigned s_extraRequiredGPUMem;
 };

libethash-cl/ethash_cl_miner_kernel.cl

@@ -585,4 +585,4 @@ __kernel void ethash_search_chunks(
 		uint slot = min(convert_uint(MAX_OUTPUTS), convert_uint(atomic_inc(&g_output[0]) + 1));
 		g_output[slot] = gid;
 	}
-}
+}

libethcore/Ethash.cpp

@@ -381,9 +381,17 @@ void Ethash::GPUMiner::listDevices()
 	return ethash_cl_miner::listDevices();
 }
 
-bool Ethash::GPUMiner::configureGPU()
+bool Ethash::GPUMiner::configureGPU(
+	unsigned _platformId,
+	unsigned _deviceId,
+	bool _allowCPU,
+	unsigned _extraGPUMemory,
+	boost::optional<uint64_t> _currentBlock
+)
 {
-	return ethash_cl_miner::configureGPU();
+	s_platformId = _platformId;
+	s_deviceId = _deviceId;
+	return ethash_cl_miner::configureGPU(_allowCPU, _extraGPUMemory, _currentBlock);
 }
 
 #endif

libethcore/Ethash.h

@@ -87,11 +87,8 @@ public:
 
 		static unsigned instances() { return s_numInstances > 0 ? s_numInstances : std::thread::hardware_concurrency(); }
 		static std::string platformInfo();
-		static void setDefaultPlatform(unsigned) {}
-		static void setDagChunks(unsigned) {}
-		static void setDefaultDevice(unsigned) {}
 		static void listDevices() {}
-		static bool configureGPU() { return false; }
+		static bool configureGPU(unsigned, unsigned, bool, unsigned, boost::optional<uint64_t>) { return false; }
 		static void setNumInstances(unsigned _instances) { s_numInstances = std::min<unsigned>(_instances, std::thread::hardware_concurrency()); }
 	protected:
 		void kickOff() override
@@ -120,9 +117,13 @@ public:
 		static std::string platformInfo();
 		static unsigned getNumDevices();
 		static void listDevices();
-		static bool configureGPU();
-		static void setDefaultPlatform(unsigned _id) { s_platformId = _id; }
-		static void setDefaultDevice(unsigned _id) { s_deviceId = _id; }
+		static bool configureGPU(
+			unsigned _platformId,
+			unsigned _deviceId,
+			bool _allowCPU,
+			unsigned _extraGPUMemory,
+			boost::optional<uint64_t> _currentBlock
+		);
 		static void setNumInstances(unsigned _instances) { s_numInstances = std::min<unsigned>(_instances, getNumDevices()); }
 
 	protected:

libethcore/EthashAux.cpp

@@ -54,6 +54,11 @@ uint64_t EthashAux::cacheSize(BlockInfo const& _header)
 	return ethash_get_cachesize((uint64_t)_header.number);
 }
 
+uint64_t EthashAux::dataSize(uint64_t _blockNumber)
+{
+	return ethash_get_datasize(_blockNumber);
+}
+
 h256 EthashAux::seedHash(unsigned _number)
 {
 	unsigned epoch = _number / ETHASH_EPOCH_LENGTH;

libethcore/EthashAux.h

@@ -66,6 +66,7 @@ public:
 	static h256 seedHash(unsigned _number);
 	static uint64_t number(h256 const& _seedHash);
 	static uint64_t cacheSize(BlockInfo const& _header);
+	static uint64_t dataSize(uint64_t _blockNumber);
 
 	static LightType light(h256 const& _seedHash);
 

libethereum/Client.cpp

@@ -614,13 +614,10 @@ bool Client::submitWork(ProofOfWork::Solution const& _solution)
 void Client::syncBlockQueue()
 {
 	ImportRoute ir;
-
 	cwork << "BQ ==> CHAIN ==> STATE";
-	{
-		tie(ir.first, ir.second, m_syncBlockQueue) = m_bc.sync(m_bq, m_stateDB, rand() % 90 + 10);
-		if (ir.first.empty())
-			return;
-	}
+	tie(ir.first, ir.second, m_syncBlockQueue) = m_bc.sync(m_bq, m_stateDB, rand() % 10 + 5);
+	if (ir.first.empty())
+		return;
 	onChainChanged(ir);
 }
 

libethereum/ClientBase.cpp

@@ -45,6 +45,21 @@ State ClientBase::asOf(BlockNumber _h) const
 	return asOf(bc().numberHash(_h));
 }
 
+void ClientBase::submitTransaction(Secret _secret, u256 _value, Address _dest, bytes const& _data, u256 _gas, u256 _gasPrice, u256 _nonce)
+{
+	prepareForTransaction();
+
+	auto a = toAddress(_secret);
+	u256 n = postMine().transactionsFrom(a);
+	cdebug << "submitTx: " << a << "postMine=" << n << "; tq=" << m_tq.maxNonce(a);
+
+	Transaction t(_value, _gasPrice, _gas, _dest, _data, _nonce, _secret);
+	m_tq.import(t.rlp());
+
+	StructuredLogger::transactionReceived(t.sha3().abridged(), t.sender().abridged());
+	cnote << "New transaction " << t << "(maxNonce for sender" << a << "is" << m_tq.maxNonce(a) << ")";
+}
+
 void ClientBase::submitTransaction(Secret _secret, u256 _value, Address _dest, bytes const& _data, u256 _gas, u256 _gasPrice)
 {
 	prepareForTransaction();

libethereum/ClientBase.h

@@ -76,6 +76,7 @@ public:
 	virtual ~ClientBase() {}
 
 	/// Submits the given message-call transaction.
+	virtual void submitTransaction(Secret _secret, u256 _value, Address _dest, bytes const& _data, u256 _gas, u256 _gasPrice, u256 _nonce);
 	virtual void submitTransaction(Secret _secret, u256 _value, Address _dest, bytes const& _data = bytes(), u256 _gas = 10000, u256 _gasPrice = 10 * szabo) override;
 
 	/// Submits a new contract-creation transaction.

libethereum/EthereumHost.cpp

@@ -111,7 +111,7 @@ void EthereumHost::doWork()
 	bool netChange = ensureInitialised();
 	auto h = m_chain.currentHash();
 	// If we've finished our initial sync (including getting all the blocks into the chain so as to reduce invalid transactions), start trading transactions & blocks
-	if (isSyncing() && m_chain.isKnown(m_latestBlockSent))
+	if (!isSyncing() && m_chain.isKnown(m_latestBlockSent))
 	{
 		if (m_newTransactions)
 		{
@@ -171,6 +171,7 @@ void EthereumHost::maintainTransactions()
 			RLPStream ts;
 			_p->prep(ts, TransactionsPacket, n).appendRaw(b, n);
 			_p->sealAndSend(ts);
+			cnote << "Sent" << n << "transactions to " << _p->session()->info().clientVersion;
 		}
 		_p->m_requireTransactions = false;
 	});

libethereum/Precompiled.cpp

@@ -81,8 +81,7 @@ void ripemd160Code(bytesConstRef _in, bytesRef _out)
 
 void identityCode(bytesConstRef _in, bytesRef _out)
 {
-	bytes b = _in.toBytes();
-	memcpy(_out.data(), b.data(), min(_out.size(), b.size()));
+	_in.copyTo(_out);
 }
 
 }

libethereum/State.cpp

@@ -141,7 +141,12 @@ State::State(OverlayDB const& _db, BlockChain const& _bc, h256 _h, ImportRequire
 
 		// 2. Enact the block's transactions onto this state.
 		m_ourAddress = bi.coinbaseAddress;
-		enact(BlockChain::verifyBlock(b), _bc, _ir);
+		boost::timer t;
+		auto vb = BlockChain::verifyBlock(b);
+		cnote << "verifyBlock:" << t.elapsed();
+		t.restart();
+		enact(vb, _bc, _ir);
+		cnote << "enact:" << t.elapsed();
 	}
 	else
 	{

test/TestHelper.cpp

@@ -352,6 +352,8 @@ void ImportTest::exportTest(bytes const& _output, State const& _statePost)
 			BOOST_CHECK_MESSAGE((m_TestObject["out"].get_str() == m_TestObject["expectOut"].get_str()), warning);
 		else
 			BOOST_WARN_MESSAGE((m_TestObject["out"].get_str() == m_TestObject["expectOut"].get_str()), warning);
+
+		m_TestObject.erase(m_TestObject.find("expectOut"));
 	}
 
 	// export logs

test/libevm/vm.cpp

@@ -388,6 +388,19 @@ void doVMTests(json_spirit::mValue& v, bool _fillin)
 
 				o["callcreates"] = fev.exportCallCreates();
 				o["out"] = output.size() > 4096 ? "#" + toString(output.size()) : toHex(output, 2, HexPrefix::Add);
+
+				// compare expected output with post output
+				if (o.count("expectOut") > 0)
+				{
+					std::string warning = "Check State: Error! Unexpected output: " + o["out"].get_str() + " Expected: " + o["expectOut"].get_str();
+					if (Options::get().checkState)
+						BOOST_CHECK_MESSAGE((o["out"].get_str() == o["expectOut"].get_str()), warning);
+					else
+						BOOST_WARN_MESSAGE((o["out"].get_str() == o["expectOut"].get_str()), warning);
+
+					o.erase(o.find("expectOut"));
+				}
+
 				o["gas"] = toCompactHex(fev.gas, HexPrefix::Add, 1);
 				o["logs"] = exportLog(fev.sub.logs);
 			}