override unsafe protected void MinerThread()
{
Random r = new Random();
UInt32[] output = new UInt32[256];
ComputeDevice computeDevice = Device.GetComputeDevice();
MarkAsAlive();
MainForm.Logger("Miner thread for Device #" + DeviceIndex + " started.");
ComputeProgram program;
try { mProgramArrayMutex.WaitOne(); } catch (Exception) { }
if (mProgramArray.ContainsKey(new long[] { DeviceIndex, mLocalWorkSize }))
{
program = mProgramArray[new long[] { DeviceIndex, mLocalWorkSize }];
}
else
{
String source = System.IO.File.ReadAllText(@"Kernels\ethash.cl");
program = new ComputeProgram(Context, source);
MainForm.Logger("Loaded ethash program for Device #" + DeviceIndex + ".");
String buildOptions = (Device.Vendor == "AMD"
? "-O1 "
: Device.Vendor == "NVIDIA"
? ""
: // "-cl-nv-opt-level=1 -cl-nv-maxrregcount=256 " :
"")
+ " -IKernels -DWORKSIZE=" + mLocalWorkSize;
try
{
program.Build(Device.DeviceList, buildOptions, null, IntPtr.Zero);
}
catch (Exception)
{
MainForm.Logger(program.GetBuildLog(computeDevice));
throw;
}
MainForm.Logger("Built cryptonight program for Device #" + DeviceIndex + ".");
MainForm.Logger("Built options: " + buildOptions);
mProgramArray[new long[] { DeviceIndex, mLocalWorkSize }] = program;
}
try { mProgramArrayMutex.ReleaseMutex(); } catch (Exception) { }
while (!Stopped)
{
MarkAsAlive();
try
{
// Wait for the first job to arrive.
int elapsedTime = 0;
while ((mStratum == null || mStratum.GetJob() == null) && elapsedTime < 5000)
{
Thread.Sleep(10);
elapsedTime += 10;
}
if (mStratum == null || mStratum.GetJob() == null)
{
MainForm.Logger("Stratum server failed to send a new job.");
//throw new TimeoutException("Stratum server failed to send a new job.");
return;
}
int epoch = -1;
long DAGSize = 0;
ComputeBuffer <byte> DAGBuffer = null;
using (ComputeKernel DAGKernel = program.CreateKernel("GenerateDAG"))
using (ComputeKernel searchKernel = program.CreateKernel("search"))
using (ComputeBuffer <UInt32> outputBuffer = new ComputeBuffer <UInt32>(Context, ComputeMemoryFlags.ReadWrite, 256))
using (ComputeBuffer <byte> headerBuffer = new ComputeBuffer <byte>(Context, ComputeMemoryFlags.ReadOnly, 32))
{
MarkAsAlive();
System.Diagnostics.Stopwatch consoleUpdateStopwatch = new System.Diagnostics.Stopwatch();
EthashStratum.Work work;
while (!Stopped && (work = mStratum.GetWork()) != null)
{
String poolExtranonce = mStratum.PoolExtranonce;
byte[] extranonceByteArray = Utilities.StringToByteArray(poolExtranonce);
byte localExtranonce = work.LocalExtranonce;
UInt64 startNonce = (UInt64)localExtranonce << (8 * (7 - extranonceByteArray.Length));
for (int i = 0; i < extranonceByteArray.Length; ++i)
{
startNonce |= (UInt64)extranonceByteArray[i] << (8 * (7 - i));
}
startNonce += (ulong)r.Next(0, int.MaxValue) & (0xfffffffffffffffful >> (extranonceByteArray.Length * 8 + 8));
String jobID = work.GetJob().ID;
String headerhash = work.GetJob().Headerhash;
String seedhash = work.GetJob().Seedhash;
double difficulty = mStratum.Difficulty;
fixed(byte *p = Utilities.StringToByteArray(headerhash))
Queue.Write <byte>(headerBuffer, true, 0, 32, (IntPtr)p, null);
if (epoch != work.GetJob().Epoch)
{
if (DAGBuffer != null)
{
DAGBuffer.Dispose();
DAGBuffer = null;
}
epoch = work.GetJob().Epoch;
DAGCache cache = new DAGCache(epoch, work.GetJob().Seedhash);
DAGSize = Utilities.GetDAGSize(epoch);
System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
sw.Start();
fixed(byte *p = cache.GetData())
{
long globalWorkSize = DAGSize / 64;
globalWorkSize /= 8;
if (globalWorkSize % mLocalWorkSize > 0)
{
globalWorkSize += mLocalWorkSize - globalWorkSize % mLocalWorkSize;
}
ComputeBuffer <byte> DAGCacheBuffer = new ComputeBuffer <byte>(Context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, cache.GetData().Length, (IntPtr)p);
DAGBuffer = new ComputeBuffer <byte>(Context, ComputeMemoryFlags.ReadWrite, globalWorkSize * 8 * 64 /* DAGSize */); // With this, we can remove a conditional statement in the DAG kernel.
DAGKernel.SetValueArgument <UInt32>(0, 0);
DAGKernel.SetMemoryArgument(1, DAGCacheBuffer);
DAGKernel.SetMemoryArgument(2, DAGBuffer);
DAGKernel.SetValueArgument <UInt32>(3, (UInt32)cache.GetData().Length / 64);
DAGKernel.SetValueArgument <UInt32>(4, 0xffffffffu);
for (long start = 0; start < DAGSize / 64; start += globalWorkSize)
{
Queue.Execute(DAGKernel, new long[] { start }, new long[] { globalWorkSize }, new long[] { mLocalWorkSize }, null);
Queue.Finish();
if (Stopped || !mStratum.GetJob().ID.Equals(jobID))
{
break;
}
}
DAGCacheBuffer.Dispose();
if (Stopped || !mStratum.GetJob().ID.Equals(jobID))
{
break;
}
}
sw.Stop();
MainForm.Logger("Generated DAG for Epoch #" + epoch + " (" + (long)sw.Elapsed.TotalMilliseconds + "ms).");
}
consoleUpdateStopwatch.Start();
while (!Stopped && mStratum.GetJob().ID.Equals(jobID) && mStratum.PoolExtranonce.Equals(poolExtranonce))
{
MarkAsAlive();
// Get a new local extranonce if necessary.
if ((startNonce & (0xfffffffffffffffful >> (extranonceByteArray.Length * 8 + 8)) + (ulong)mGlobalWorkSize) >= ((ulong)0x1 << (64 - (extranonceByteArray.Length * 8 + 8))))
{
break;
}
UInt64 target = (UInt64)((double)0xffff0000U / difficulty);
searchKernel.SetMemoryArgument(0, outputBuffer); // g_output
searchKernel.SetMemoryArgument(1, headerBuffer); // g_header
searchKernel.SetMemoryArgument(2, DAGBuffer); // _g_dag
searchKernel.SetValueArgument <UInt32>(3, (UInt32)(DAGSize / 128)); // DAG_SIZE
searchKernel.SetValueArgument <UInt64>(4, startNonce); // start_nonce
searchKernel.SetValueArgument <UInt64>(5, target); // target
searchKernel.SetValueArgument <UInt32>(6, 0xffffffffu); // isolate
System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
sw.Start();
fixed(UInt32 *p = output)
{
output[255] = 0; // output[255] is used as an atomic counter.
Queue.Write <UInt32>(outputBuffer, true, 0, 256, (IntPtr)p, null);
Queue.Execute(searchKernel, new long[] { 0 }, new long[] { mGlobalWorkSize }, new long[] { mLocalWorkSize }, null);
Queue.Read <UInt32>(outputBuffer, true, 0, 256, (IntPtr)p, null);
}
sw.Stop();
mSpeed = ((double)mGlobalWorkSize) / sw.Elapsed.TotalSeconds;
if (consoleUpdateStopwatch.ElapsedMilliseconds >= 10 * 1000)
{
MainForm.Logger("Device #" + DeviceIndex + ": " + String.Format("{0:N2} Mh/s", mSpeed / (1000000)));
consoleUpdateStopwatch.Restart();
}
if (mStratum.GetJob().ID.Equals(jobID))
{
for (int i = 0; i < output[255]; ++i)
{
mStratum.Submit(GatelessGateDevice, work.GetJob(), startNonce + (UInt64)output[i]);
}
}
startNonce += (UInt64)mGlobalWorkSize;
}
}
}
if (DAGBuffer != null)
{
DAGBuffer.Dispose();
DAGBuffer = null;
}
}
catch (Exception ex)
{
MainForm.Logger("Exception in miner thread: " + ex.Message + ex.StackTrace);
MainForm.Logger("Restarting miner thread...");
}
}
MarkAsDone();
}
unsafe public void MinerThread()
{
MainForm.Logger("Miner thread for Device #" + DeviceIndex + " started.");
// Wait for the first job to arrive.
int timePassed = 0;
while ((mStratum == null || mStratum.CurrentJob == null) && timePassed < 5000)
{
Thread.Sleep(10);
timePassed += 10;
}
if (mStratum == null || mStratum.CurrentJob == null)
{
MainForm.Logger("Stratum server failed to send a new job.");
//throw new TimeoutException("Stratum server failed to send a new job.");
return;
}
System.Diagnostics.Stopwatch consoleUpdateStopwatch = new System.Diagnostics.Stopwatch();
EthashStratum.Work work;
int epoch = -1;
long DAGSize = 0;
ComputeBuffer <byte> DAGBuffer = null;
ComputeBuffer <UInt32> outputBuffer = new ComputeBuffer <UInt32>(Context, ComputeMemoryFlags.ReadWrite, 256);
ComputeBuffer <byte> headerBuffer = new ComputeBuffer <byte>(Context, ComputeMemoryFlags.ReadOnly, 32);
UInt32[] output = new UInt32[256];
Random r = new Random();
while (!Stopped && (work = mStratum.GetWork()) != null)
{
String poolExtranonce = mStratum.PoolExtranonce;
byte[] extranonceByteArray = Utilities.StringToByteArray(poolExtranonce);
byte localExtranonce = work.LocalExtranonce;
UInt64 startNonce = (UInt64)localExtranonce << (8 * (7 - extranonceByteArray.Length));
for (int i = 0; i < extranonceByteArray.Length; ++i)
{
startNonce |= (UInt64)extranonceByteArray[i] << (8 * (7 - i));
}
startNonce += (ulong)r.Next(0, int.MaxValue) & (0xfffffffffffffffful >> (extranonceByteArray.Length * 8 + 16));
String jobID = work.GetJob().ID;
String headerhash = work.GetJob().Headerhash;
String seedhash = work.GetJob().Seedhash;
double difficulty = mStratum.Difficulty;
fixed(byte *p = Utilities.StringToByteArray(headerhash))
Queue.Write <byte>(headerBuffer, true, 0, 32, (IntPtr)p, null);
if (epoch != work.GetJob().Epoch)
{
if (DAGBuffer != null)
{
DAGBuffer.Dispose();
DAGBuffer = null;
}
epoch = work.GetJob().Epoch;
DAGCache cache = new DAGCache(epoch, work.GetJob().Seedhash);
DAGSize = Utilities.GetDAGSize(epoch);
System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
sw.Start();
fixed(byte *p = cache.GetData())
{
long globalWorkSize = DAGSize / 64;
globalWorkSize /= 8;
if (globalWorkSize % mLocalWorkSize > 0)
{
globalWorkSize += mLocalWorkSize - globalWorkSize % mLocalWorkSize;
}
ComputeBuffer <byte> DAGCacheBuffer = new ComputeBuffer <byte>(Context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, cache.GetData().Length, (IntPtr)p);
DAGBuffer = new ComputeBuffer <byte>(Context, ComputeMemoryFlags.ReadWrite, globalWorkSize * 8 * 64 /* DAGSize */); // With this, we can remove a conditional statement in the DAG kernel.
mDAGKernel.SetValueArgument <UInt32>(0, 0);
mDAGKernel.SetMemoryArgument(1, DAGCacheBuffer);
mDAGKernel.SetMemoryArgument(2, DAGBuffer);
mDAGKernel.SetValueArgument <UInt32>(3, (UInt32)cache.GetData().Length / 64);
//mDAGKernel.SetValueArgument<UInt32>(4, (UInt32)(DAGSize / 64));
mDAGKernel.SetValueArgument <UInt32>(4, 0xffffffffu);
for (long start = 0; start < DAGSize / 64; start += globalWorkSize)
{
Queue.Execute(mDAGKernel, new long[] { start }, new long[] { globalWorkSize }, new long[] { mLocalWorkSize }, null);
Queue.Finish();
}
DAGCacheBuffer.Dispose();
}
sw.Stop();
MainForm.Logger("Generated DAG for Epoch #" + epoch + " (" + (long)sw.Elapsed.TotalMilliseconds + "ms).");
}
consoleUpdateStopwatch.Start();
while (!Stopped && mStratum.CurrentJob.ID.Equals(jobID) && mStratum.PoolExtranonce.Equals(poolExtranonce))
{
UInt64 target = (UInt64)((double)0xffff0000U / difficulty);
mSearchKernel.SetMemoryArgument(0, outputBuffer); // g_output
mSearchKernel.SetMemoryArgument(1, headerBuffer); // g_header
mSearchKernel.SetMemoryArgument(2, DAGBuffer); // _g_dag
mSearchKernel.SetValueArgument <UInt32>(3, (UInt32)(DAGSize / 128)); // DAG_SIZE
mSearchKernel.SetValueArgument <UInt64>(4, startNonce); // start_nonce
mSearchKernel.SetValueArgument <UInt64>(5, target); // target
mSearchKernel.SetValueArgument <UInt32>(6, 0xffffffffu); // isolate
System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
sw.Start();
fixed(UInt32 *p = output)
{
output[255] = 0; // output[255] is used as an atomic counter.
Queue.Write <UInt32>(outputBuffer, true, 0, 256, (IntPtr)p, null);
Queue.Execute(mSearchKernel, new long[] { 0 }, new long[] { mGlobalWorkSize }, new long[] { mLocalWorkSize }, null);
Queue.Read <UInt32>(outputBuffer, true, 0, 256, (IntPtr)p, null);
}
sw.Stop();
mSpeed = ((double)mGlobalWorkSize) / sw.Elapsed.TotalSeconds;
if (consoleUpdateStopwatch.ElapsedMilliseconds >= 10 * 1000)
{
MainForm.Logger("Device #" + DeviceIndex + ": " + String.Format("{0:N2} Mh/s", mSpeed / (1000000)));
consoleUpdateStopwatch.Restart();
}
for (int i = 0; i < output[255]; ++i)
{
mStratum.Submit(work.GetJob(), startNonce + (UInt64)output[i]);
}
startNonce += (UInt64)mGlobalWorkSize;
}
}
headerBuffer.Dispose();
outputBuffer.Dispose();
DAGBuffer.Dispose();
mSpeed = 0;
}
