public KernelInput(KernelInput input, uint baseExp)
{
Rsa = input.Rsa;
LastWs = input.LastWs;
Midstates = input.Midstates;
ExpIndexes = input.ExpIndexes;
Results = input.Results;
BaseExp = baseExp;
}
private void CreateInput()
{
while (true)
{
bool inputQueueIsLow = false;
lock (_kernelInput) { inputQueueIsLow = _kernelInput.Count < 300; }
if (inputQueueIsLow)
{
int num_exps = (get_der_len(EXP_MAX) - get_der_len(EXP_MIN) + 1);
KernelInput input = new KernelInput(num_exps);
profiler.StartRegion("generate key");
input.Rsa.GenerateKey(keySize); // Generate a key
profiler.EndRegion("generate key");
// Build DERs and calculate midstates for exponents of representitive lengths
profiler.StartRegion("cpu precompute");
int cur_exp_num = 0;
BigNumber[] Exps = new BigNumber[num_exps];
bool skip_flag = false;
for (int i = get_der_len(EXP_MIN); i <= get_der_len(EXP_MAX); i++)
{
ulong exp = (ulong)0x01 << (int)((i - 1) * 8);
// Set the exponent in the RSA key
// NO SANITY CHECK - just for building a DER
input.Rsa.Rsa.PublicExponent = (BigNumber)exp;
Exps[cur_exp_num] = (BigNumber)exp;
// Get the DER
byte[] der = input.Rsa.DER;
int exp_index = der.Length % 64 - i;
if (kernel_type == KernelType.Optimized4_9)
{
if (exp_index != 9) // exponent index assumed to be 9 in the kernel
{
Console.WriteLine("Exponent index doesn't match - skipping key");
skip_flag = true;
break;
}
if (i != 4) // exponent length assumed to be 4 in the kernel
{
Console.WriteLine("Exponent length doesn't match - skipping key");
skip_flag = true;
break;
}
}
else if (kernel_type == KernelType.Optimized4_11)
{
if (exp_index != 11) // exponent index assumed to be 9 in the kernel
{
Console.WriteLine("Exponent index doesn't match - skipping key");
skip_flag = true;
break;
}
if (i != 4) // exponent length assumed to be 4 in the kernel
{
Console.WriteLine("Exponent length doesn't match - skipping key");
skip_flag = true;
break;
}
}
// Put the DER into Ws
SHA1 Sha1 = new SHA1();
List <uint[]> Ws = Sha1.DataToPaddedBlocks(der);
// Put all but the last block through the hash
Ws.Take(Ws.Count - 1).Select((t) =>
{
Sha1.SHA1_Block(t);
return(t);
}).ToArray();
// Put the midstate, the last W block, and the byte index of the exponent into the CL buffers
Sha1.H.CopyTo(input.Midstates, 5 * cur_exp_num);
Ws.Last().Take(16).ToArray().CopyTo(input.LastWs, 16 * cur_exp_num);
input.ExpIndexes[cur_exp_num] = exp_index;
// Increment the current exponent size
cur_exp_num++;
break;
}
profiler.EndRegion("cpu precompute");
if (skip_flag)
{
continue; // we got a bad key - don't enqueue it
}
List <KernelInput> inputs = new List <KernelInput>();
inputs.Add(input);
for (uint i = 1; i < (EXP_MAX - EXP_MIN) / 2 / workSize - 1; i++)
{
profiler.StartRegion("generate key");
if (EXP_MIN + workSize * 2 * i >= EXP_MAX)
{
throw new ArgumentException("base_exp > EXP_MAX");
}
inputs.Add(new KernelInput(input, EXP_MIN + workSize * 2 * i));
profiler.EndRegion("generate key");
}
lock (_kernelInput) //put input on queue
{
foreach (KernelInput i in inputs)
{
_kernelInput.Push(i);
}
}
continue; //skip the sleep cause we might be really low
}
Thread.Sleep(50);
}
}
public void Run(ProgramParameters parms)
//int deviceId, int workGroupSize, int workSize, int numThreadsCreateWork, KernelType kernelt, int keysize, IEnumerable<string> patterns)
{
int deviceId = (int)parms.DeviceId;
int workGroupSize = (int)parms.WorkGroupSize;
int workSize = (int)parms.WorkSize;
int numThreadsCreateWork = (int)parms.CpuThreads;
KernelType kernelt = parms.KernelType;
int keysize = (int)parms.KeySize;
Console.WriteLine("Cooking up some delicions scallions...");
this.workSize = (uint)workSize;
profiler = new Profiler();
#region init
profiler.StartRegion("init");
// Combine patterns into a single regexp and build one of Richard's objects
var rp = new RegexPattern(parms.Regex);
// Create bitmasks array for the GPU
var gpu_bitmasks = rp.GenerateOnionPatternBitmasksForGpu(MIN_CHARS)
.Select(t => TorBase32.ToUIntArray(TorBase32.CreateBase32Mask(t)))
.SelectMany(t => t).ToArray();
//Create Hash Table
uint[] dataArray;
ushort[] hashTable;
uint[][] all_patterns;
int max_items_per_key = 0;
{
Func <uint[], ushort> fnv =
(pattern_arr) =>
{
uint f = Util.FNVHash(pattern_arr[0], pattern_arr[1], pattern_arr[2]);
f = ((f >> 10) ^ f) & (uint)1023;
return((ushort)f);
};
all_patterns = rp.GenerateOnionPatternsForGpu(7)
.Select(i => TorBase32.ToUIntArray(TorBase32.FromBase32Str(i.Replace('.', 'a'))))
.ToArray();
var gpu_dict_list = all_patterns
.Select(i => new KeyValuePair <ushort, uint>(fnv(i), Util.FNVHash(i[0], i[1], i[2])))
.GroupBy(i => i.Key)
.OrderBy(i => i.Key)
.ToList();
dataArray = gpu_dict_list.SelectMany(i => i.Select(j => j.Value)).ToArray();
hashTable = new ushort[1024]; //item 1 index, item 2 length
int currIndex = 0;
foreach (var item in gpu_dict_list)
{
int len = item.Count();
hashTable[item.Key] = (ushort)currIndex;
currIndex += len;
if (len > max_items_per_key)
{
max_items_per_key = len;
}
}
Console.WriteLine("Putting {0} patterns into {1} buckets.", currIndex, gpu_dict_list.Count);
}
// Set the key size
keySize = keysize;
// Find kernel name and check key size
kernel_type = kernelt;
string kernelFileName = null, kernelName = null;
switch (kernel_type)
{
case KernelType.Normal:
kernelFileName = "kernel.cl";
kernelName = "normal";
break;
case KernelType.Optimized4_9:
if (keySize != 1024)
{
throw new ArgumentException("Kernel only works with keysize 1024.");
}
kernelFileName = "kernel.cl";
kernelName = "optimized";
break;
case KernelType.Optimized4_11:
if (keySize != 2048 && keySize != 4096)
{
throw new ArgumentException("Kernel only works with keysize 2048 or 4096.");
}
kernelFileName = "kernel.cl";
kernelName = "optimized";
break;
default:
throw new ArgumentException("Pick a supported kernel.");
}
Console.WriteLine("Using kernel {0} from file {1} ({2})", kernelName, kernelFileName, kernel_type);
//create device context and kernel
CLDeviceInfo device = GetDevices()[deviceId];
if ((uint)workGroupSize > device.MaxWorkGroupSize)
{
workGroupSize = (int)device.MaxWorkGroupSize;
}
Console.WriteLine("Using work group size {0}", workGroupSize);
CLContext context = new CLContext(device.DeviceId);
Console.Write("Compiling kernel... ");
string kernel_text = KernelGenerator.GenerateKernel(parms, gpu_bitmasks.Length / 3, max_items_per_key, gpu_bitmasks.Take(3).ToArray(), all_patterns[0], all_patterns.Length);
if (parms.SaveGeneratedKernelPath != null)
{
System.IO.File.WriteAllText(parms.SaveGeneratedKernelPath, kernel_text);
}
IntPtr program = context.CreateAndCompileProgram(kernel_text);
var hashes_per_win = 0.5 / rp.GenerateAllOnionPatternsForRegex().Select(t => Math.Pow(2, -5 * t.Count(q => q != '.'))).Sum();
Console.WriteLine("done.");
CLKernel kernel = context.CreateKernel(program, kernelName);
//Create buffers
CLBuffer <uint> bufLastWs;
CLBuffer <uint> bufMidstates;
CLBuffer <int> bufExpIndexes;
CLBuffer <uint> bufResults;
{
int num_exps = (get_der_len(EXP_MAX) - get_der_len(EXP_MIN) + 1);
uint[] LastWs = new uint[num_exps * 16];
uint[] Midstates = new uint[num_exps * 5];
int[] ExpIndexes = new int[num_exps];
uint[] Results = new uint[128];
bufLastWs = context.CreateBuffer(OpenTK.Compute.CL10.MemFlags.MemReadOnly | OpenTK.Compute.CL10.MemFlags.MemCopyHostPtr, LastWs);
bufMidstates = context.CreateBuffer(OpenTK.Compute.CL10.MemFlags.MemReadOnly | OpenTK.Compute.CL10.MemFlags.MemCopyHostPtr, Midstates);
bufExpIndexes = context.CreateBuffer(OpenTK.Compute.CL10.MemFlags.MemReadOnly | OpenTK.Compute.CL10.MemFlags.MemCopyHostPtr, ExpIndexes);
bufResults = context.CreateBuffer(OpenTK.Compute.CL10.MemFlags.MemReadWrite | OpenTK.Compute.CL10.MemFlags.MemCopyHostPtr, Results);
}
//Create pattern buffers
CLBuffer <ushort> bufHashTable;
CLBuffer <uint> bufDataArray;
CLBuffer <uint> bufBitmasks;
{
bufHashTable = context.CreateBuffer(OpenTK.Compute.CL10.MemFlags.MemReadOnly | OpenTK.Compute.CL10.MemFlags.MemCopyHostPtr, hashTable);
bufDataArray = context.CreateBuffer(OpenTK.Compute.CL10.MemFlags.MemReadOnly | OpenTK.Compute.CL10.MemFlags.MemCopyHostPtr, dataArray);
bufBitmasks = context.CreateBuffer(OpenTK.Compute.CL10.MemFlags.MemReadOnly | OpenTK.Compute.CL10.MemFlags.MemCopyHostPtr, gpu_bitmasks);
}
//Set kernel arguments
lock (new object()) { } // Empty lock, resolves (or maybe hides) a race condition in SetKernelArg
kernel.SetKernelArg(0, bufLastWs);
kernel.SetKernelArg(1, bufMidstates);
kernel.SetKernelArg(2, bufResults);
kernel.SetKernelArg(3, (uint)EXP_MIN);
kernel.SetKernelArg(4, (byte)get_der_len(EXP_MIN));
kernel.SetKernelArg(5, bufExpIndexes);
kernel.SetKernelArg(6, bufBitmasks);
kernel.SetKernelArg(7, bufHashTable);
kernel.SetKernelArg(8, bufDataArray);
profiler.EndRegion("init");
bufBitmasks.EnqueueWrite(true);
bufHashTable.EnqueueWrite(true);
bufDataArray.EnqueueWrite(true);
//start the thread to generate input data
for (int i = 0; i < numThreadsCreateWork; i++)
{
Thread inputThread = new Thread(CreateInput);
inputThread.Start();
inputThreads.Add(inputThread);
}
Thread.Sleep(3000); //wait just a bit so some work is available
#endregion
int loop = 0;
var gpu_runtime_sw = System.Diagnostics.Stopwatch.StartNew();
profiler.StartRegion("total without init");
bool success = false;
while (!success)
{
lock (this) { if (this.Abort)
{
break;
}
} //abort flag was set.... bail
KernelInput input = null;
lock (_kernelInput)
{
if (_kernelInput.Count > 0)
{
input = _kernelInput.Pop();
}
}
if (input == null) //If we have run out of work sleep for a bit
{
Console.WriteLine("Lack of work for the GPU!! Taking a nap!!");
Thread.Sleep(250);
continue;
}
profiler.StartRegion("set buffers");
bufLastWs.Data = input.LastWs;
bufMidstates.Data = input.Midstates;
bufExpIndexes.Data = input.ExpIndexes;
bufResults.Data = input.Results;
kernel.SetKernelArg(3, input.BaseExp);
profiler.EndRegion("set buffers");
profiler.StartRegion("write buffers");
bufLastWs.EnqueueWrite(true);
bufMidstates.EnqueueWrite(true);
bufExpIndexes.EnqueueWrite(true);
Array.Clear(bufResults.Data, 0, bufResults.Data.Length);
bufResults.EnqueueWrite(true);
profiler.EndRegion("write buffers");
kernel.EnqueueNDRangeKernel(workSize, workGroupSize);
profiler.StartRegion("read results");
bufResults.EnqueueRead(false);
profiler.EndRegion("read results");
loop++;
Console.Write("\r");
long hashes = (long)workSize * (long)loop;
Console.Write("LoopIteration:{0} HashCount:{1:0.00}MH Speed:{2:0.0}MH/s Runtime:{3} Predicted:{4} ",
loop, hashes / 1000000.0d, hashes / gpu_runtime_sw.ElapsedMilliseconds / 1000.0d,
gpu_runtime_sw.Elapsed.ToString().Split('.')[0],
PredictedRuntime(hashes_per_win, hashes * 1000 / gpu_runtime_sw.ElapsedMilliseconds));
profiler.StartRegion("check results");
foreach (var result in input.Results)
{
if (result != 0)
{
try
{
input.Rsa.ChangePublicExponent((BigNumber)result);
string onion_hash = input.Rsa.OnionHash;
Console.WriteLine("CPU checking hash: {0}", onion_hash);
if (rp.DoesOnionHashMatchPattern(onion_hash))
{
Console.WriteLine();
Console.WriteLine("Ding!! Delicious scallions for you!!");
Console.WriteLine();
string key = input.Rsa.Rsa.PrivateKeyAsPEM;
if (parms.KeyOutputPath != null)
{
System.IO.File.AppendAllText(parms.KeyOutputPath, "Generated at: " + System.DateTime.Now.ToString("G") + "\n");
System.IO.File.AppendAllText(parms.KeyOutputPath, "Address/Hash: " + onion_hash + ".onion\n");
System.IO.File.AppendAllText(parms.KeyOutputPath, "RSA key: \n" + key + "\n\n");
}
Console.WriteLine("Exponent: {0}", result);
input.Rsa.ChangePublicExponent((BigNumber)result);
Console.WriteLine("Address/Hash: " + onion_hash + ".onion");
Console.WriteLine();
Console.WriteLine(key);
Console.WriteLine();
if (!parms.ContinueGeneration)
{
success = true;
}
}
}
catch (OpenSslException /*ex*/) { }
}
}
profiler.EndRegion("check results");
}
foreach (var thread in inputThreads)
{
thread.Abort();
}
profiler.EndRegion("total without init");
Console.WriteLine(profiler.GetSummaryString());
Console.WriteLine("{0:0.00} million hashes per second", ((long)loop * (long)workSize * (long)1000) / (double)profiler.GetTotalMS("total without init") / (double)1000000);
}
public void Run(ProgramParameters parms)
//int deviceId, int workGroupSize, int workSize, int numThreadsCreateWork, KernelType kernelt, int keysize, IEnumerable<string> patterns)
{
int deviceId = (int)parms.DeviceId;
int workGroupSize = (int)parms.WorkGroupSize;
int workSize = (int)parms.WorkSize;
int numThreadsCreateWork = (int)parms.CpuThreads;
KernelType kernelt = parms.KernelType;
int keysize = (int)parms.KeySize;
Console.WriteLine("Cooking up some delicions scallions...");
this.workSize = (uint)workSize;
profiler = new Profiler();
#region init
profiler.StartRegion("init");
// Combine patterns into a single regexp and build one of Richard's objects
var rp = new RegexPattern(parms.Regex);
// Create bitmasks array for the GPU
var gpu_bitmasks = rp.GenerateOnionPatternBitmasksForGpu(MIN_CHARS)
.Select(t => TorBase32.ToUIntArray(TorBase32.CreateBase32Mask(t)))
.SelectMany(t => t).ToArray();
//Create Hash Table
uint[] dataArray;
ushort[] hashTable;
uint[][] all_patterns;
int max_items_per_key = 0;
{
Func <uint[], ushort> fnv =
(pattern_arr) =>
{
uint f = Util.FNVHash(pattern_arr[0], pattern_arr[1], pattern_arr[2]);
f = ((f >> 10) ^ f) & (uint)1023;
return((ushort)f);
};
all_patterns = rp.GenerateOnionPatternsForGpu(7)
.Select(i => TorBase32.ToUIntArray(TorBase32.FromBase32Str(i.Replace('.', 'a'))))
.ToArray();
var gpu_dict_list = all_patterns
.Select(i => new KeyValuePair <ushort, uint>(fnv(i), Util.FNVHash(i[0], i[1], i[2])))
.GroupBy(i => i.Key)
.OrderBy(i => i.Key)
.ToList();
dataArray = gpu_dict_list.SelectMany(i => i.Select(j => j.Value)).ToArray();
hashTable = new ushort[1024]; //item 1 index, item 2 length
int currIndex = 0;
foreach (var item in gpu_dict_list)
{
int len = item.Count();
hashTable[item.Key] = (ushort)currIndex;
currIndex += len;
if (len > max_items_per_key)
{
max_items_per_key = len;
}
}
Console.WriteLine("Putting {0} patterns into {1} buckets.", currIndex, gpu_dict_list.Count);
}
// Set the key size
keySize = keysize;
// Find kernel name and check key size
kernel_type = kernelt;
string kernelFileName = null, kernelName = null;
switch (kernel_type)
{
case KernelType.Normal:
kernelFileName = "kernel.cl";
kernelName = "normal";
break;
case KernelType.Optimized4:
kernelFileName = "kernel.cl";
kernelName = "optimized";
break;
default:
throw new ArgumentException("Pick a supported kernel.");
}
Console.WriteLine("Using kernel {0} from file {1} ({2})", kernelName, kernelFileName, kernel_type);
//create device context and kernel
CLDeviceInfo device = GetDevices()[deviceId];
if ((uint)workGroupSize > device.MaxWorkGroupSize)
{
workGroupSize = (int)device.MaxWorkGroupSize;
}
Console.WriteLine("Using work group size {0}", workGroupSize);
CLContext context = new CLContext(device.DeviceId);
Console.Write("Compiling kernel... ");
string kernel_text = KernelGenerator.GenerateKernel(parms, gpu_bitmasks.Length / 3, max_items_per_key, gpu_bitmasks.Take(3).ToArray(), all_patterns[0], all_patterns.Length, parms.ExponentIndex);
if (parms.SaveGeneratedKernelPath != null)
{
System.IO.File.WriteAllText(parms.SaveGeneratedKernelPath, kernel_text);
}
IntPtr program = context.CreateAndCompileProgram(kernel_text);
var hashes_per_win = 0.5 / rp.GenerateAllOnionPatternsForRegex().Select(t => Math.Pow(2, -5 * t.Count(q => q != '.'))).Sum();
Console.WriteLine("done.");
//
// Test SHA1 algo
//
{
Console.WriteLine("Testing SHA1 hash...");
CLKernel shaTestKern = context.CreateKernel(program, "shaTest");
CLBuffer <uint> bufSuccess = context.CreateBuffer(OpenTK.Compute.CL10.MemFlags.MemReadWrite | OpenTK.Compute.CL10.MemFlags.MemCopyHostPtr, new uint[5]);
shaTestKern.SetKernelArg(0, bufSuccess);
shaTestKern.EnqueueNDRangeKernel(workSize, workGroupSize);
bufSuccess.EnqueueRead(false);
// Calculate the SHA1 CPU-side
System.Security.Cryptography.SHA1 sha = new System.Security.Cryptography.SHA1CryptoServiceProvider();
String testdata = "Hello world!";
byte[] cpuhash = sha.ComputeHash(Encoding.ASCII.GetBytes(testdata));
StringBuilder cpuhex = new StringBuilder(cpuhash.Length * 2);
foreach (byte b in cpuhash)
{
cpuhex.AppendFormat("{0:x2}", b);
}
Console.WriteLine("CPU SHA-1: {0}", cpuhex.ToString());
// Convert the SHA1 GPU-side to hex
String gpuhex = String.Format("{0:x8}{1:x8}{2:x8}{3:x8}{4:x8}", bufSuccess.Data[0], bufSuccess.Data[1], bufSuccess.Data[2], bufSuccess.Data[3], bufSuccess.Data[4]);
Console.WriteLine("GPU SHA-1: {0}", gpuhex);
if (gpuhex != cpuhex.ToString())
{
Console.WriteLine();
Console.WriteLine("******************************* ERROR ERROR ERROR *******************************");
Console.WriteLine("* *");
Console.WriteLine("* GPU and CPU SHA-1 calculations do NOT match. *");
Console.WriteLine("* Hashing will NOT work until this is resolved. *");
Console.WriteLine("* The program will continue, but WILL NOT find a valid match. *");
Console.WriteLine("* *");
Console.WriteLine("* See https://github.com/lachesis/scallion/issues/11#issuecomment-29046835 *");
Console.WriteLine("* *");
Console.WriteLine("*********************************************************************************");
Console.WriteLine();
}
else
{
Console.WriteLine("Looks good!");
}
}
CLKernel kernel = context.CreateKernel(program, kernelName);
//Create buffers
CLBuffer <uint> bufLastWs;
CLBuffer <uint> bufMidstates;
CLBuffer <int> bufExpIndexes;
CLBuffer <uint> bufResults;
{
int num_exps = (get_der_len(EXP_MAX) - get_der_len(EXP_MIN) + 1);
uint[] LastWs = new uint[num_exps * 16];
uint[] Midstates = new uint[num_exps * 5];
int[] ExpIndexes = new int[num_exps];
uint[] Results = new uint[128];
bufLastWs = context.CreateBuffer(OpenTK.Compute.CL10.MemFlags.MemReadOnly | OpenTK.Compute.CL10.MemFlags.MemCopyHostPtr, LastWs);
bufMidstates = context.CreateBuffer(OpenTK.Compute.CL10.MemFlags.MemReadOnly | OpenTK.Compute.CL10.MemFlags.MemCopyHostPtr, Midstates);
bufExpIndexes = context.CreateBuffer(OpenTK.Compute.CL10.MemFlags.MemReadOnly | OpenTK.Compute.CL10.MemFlags.MemCopyHostPtr, ExpIndexes);
bufResults = context.CreateBuffer(OpenTK.Compute.CL10.MemFlags.MemReadWrite | OpenTK.Compute.CL10.MemFlags.MemCopyHostPtr, Results);
}
//Create pattern buffers
CLBuffer <ushort> bufHashTable;
CLBuffer <uint> bufDataArray;
CLBuffer <uint> bufBitmasks;
{
bufHashTable = context.CreateBuffer(OpenTK.Compute.CL10.MemFlags.MemReadOnly | OpenTK.Compute.CL10.MemFlags.MemCopyHostPtr, hashTable);
bufDataArray = context.CreateBuffer(OpenTK.Compute.CL10.MemFlags.MemReadOnly | OpenTK.Compute.CL10.MemFlags.MemCopyHostPtr, dataArray);
bufBitmasks = context.CreateBuffer(OpenTK.Compute.CL10.MemFlags.MemReadOnly | OpenTK.Compute.CL10.MemFlags.MemCopyHostPtr, gpu_bitmasks);
}
//Set kernel arguments
lock (new object()) { } // Empty lock, resolves (or maybe hides) a race condition in SetKernelArg
kernel.SetKernelArg(0, bufLastWs);
kernel.SetKernelArg(1, bufMidstates);
kernel.SetKernelArg(2, bufResults);
kernel.SetKernelArg(3, (uint)EXP_MIN);
kernel.SetKernelArg(4, (byte)get_der_len(EXP_MIN));
kernel.SetKernelArg(5, bufExpIndexes);
kernel.SetKernelArg(6, bufBitmasks);
kernel.SetKernelArg(7, bufHashTable);
kernel.SetKernelArg(8, bufDataArray);
profiler.EndRegion("init");
bufBitmasks.EnqueueWrite(true);
bufHashTable.EnqueueWrite(true);
bufDataArray.EnqueueWrite(true);
//start the thread to generate input data
for (int i = 0; i < numThreadsCreateWork; i++)
{
Thread inputThread = new Thread(CreateInput);
inputThread.Start();
inputThreads.Add(inputThread);
}
Thread.Sleep(3000); //wait just a bit so some work is available
#endregion
int loop = 0;
var gpu_runtime_sw = System.Diagnostics.Stopwatch.StartNew();
profiler.StartRegion("total without init");
bool success = false;
while (!success)
{
lock (this) { if (this.Abort)
{
break;
}
} //abort flag was set.... bail
KernelInput input = null;
lock (_kernelInput)
{
if (_kernelInput.Count > 0)
{
input = _kernelInput.Pop();
}
}
if (input == null) //If we have run out of work sleep for a bit
{
Console.WriteLine("Lack of work for the GPU!! Taking a nap!!");
Thread.Sleep(250);
continue;
}
profiler.StartRegion("set buffers");
bufLastWs.Data = input.LastWs;
bufMidstates.Data = input.Midstates;
bufExpIndexes.Data = input.ExpIndexes;
bufResults.Data = input.Results;
kernel.SetKernelArg(3, input.BaseExp);
profiler.EndRegion("set buffers");
profiler.StartRegion("write buffers");
bufLastWs.EnqueueWrite(true);
bufMidstates.EnqueueWrite(true);
bufExpIndexes.EnqueueWrite(true);
Array.Clear(bufResults.Data, 0, bufResults.Data.Length);
bufResults.EnqueueWrite(true);
profiler.EndRegion("write buffers");
kernel.EnqueueNDRangeKernel(workSize, workGroupSize);
profiler.StartRegion("read results");
bufResults.EnqueueRead(false);
profiler.EndRegion("read results");
loop++;
Console.Write("\r");
long hashes = (long)workSize * (long)loop;
Console.Write("LoopIteration:{0} HashCount:{1:0.00}MH Speed:{2:0.0}MH/s Runtime:{3} Predicted:{4} ",
loop, hashes / 1000000.0d, hashes / gpu_runtime_sw.ElapsedMilliseconds / 1000.0d,
gpu_runtime_sw.Elapsed.ToString().Split('.')[0],
PredictedRuntime(hashes_per_win, hashes * 1000 / gpu_runtime_sw.ElapsedMilliseconds));
profiler.StartRegion("check results");
foreach (var result in input.Results)
{
if (result != 0)
{
try
{
input.Rsa.Rsa.PublicExponent = (BigNumber)result;
string onion_hash = input.Rsa.OnionHash;
Console.WriteLine("CPU checking hash: {0}", onion_hash);
if (rp.DoesOnionHashMatchPattern(onion_hash))
{
input.Rsa.ChangePublicExponent(result);
OutputKey(input.Rsa);
if (!parms.ContinueGeneration)
{
success = true;
}
}
}
catch (OpenSslException /*ex*/) { }
}
}
profiler.EndRegion("check results");
// Mark key as used (if configured)
if (parms.UsedModuliFile != null)
{
parms.UsedModuliFile.WriteLine(input.Rsa.Rsa.PublicModulus.ToDecimalString());
}
}
foreach (var thread in inputThreads)
{
thread.Abort();
}
profiler.EndRegion("total without init");
Console.WriteLine(profiler.GetSummaryString());
Console.WriteLine("{0:0.00} million hashes per second", ((long)loop * (long)workSize * (long)1000) / (double)profiler.GetTotalMS("total without init") / (double)1000000);
}