def set_difficulty(self, difficulty):
self.difficulty = difficulty
bits = '%08x' % bytereverse(difficulty)
true_target = '%064x' % (int(bits[2:], 16) *
2**(8 * (int(bits[:2], 16) - 3)), )
true_target = ''.join(list(chunks(true_target, 2))[::-1])
self.true_target = unpack('<8I', true_target.decode('hex'))
def send(self, result, send_callback):
for nonce in result.miner.nonce_generator(result.nonces):
h = hash(result.state, result.merkle_end, result.time, result.difficulty, nonce)
if h[7] != 0:
hash6 = pack('<I', long(h[6])).encode('hex')
say_line('Verification failed, check hardware! (%s, %s)', (result.miner.id(), hash6))
return True # consume this particular result
else:
self.diff1_found(bytereverse(h[6]), result.target[6])
if belowOrEquals(h[:7], result.target[:7]):
is_block = belowOrEquals(h[:7], self.true_target[:7])
hash6 = pack('<I', long(h[6])).encode('hex')
hash5 = pack('<I', long(h[5])).encode('hex')
self.sent[nonce] = (is_block, hash6, hash5)
ntime = long(pack('<I', long(result.time)).encode('hex'),16)
resnonce = long(pack('<I', long(nonce)).encode('hex'),16)
block = self.source.create_block_header(self.source.merkle_root, ntime, self.source.bits, resnonce)
hash_header = hashlib.sha256(hashlib.sha256(block).digest()).digest()[::-1]
shouldSend = int(hash_header.encode('hex_codec'), 16) < self.source.server_difficulty
print "t->" + str(ntime) + " nonce->" + str(resnonce) + " shouldSend->" + str(shouldSend)
if shouldSend:
if not send_callback(result, nonce):
return False
return True
def put_job(self):
if self.busy: return
temperature = self.get_temperature()
if temperature < self.cutoff_temp:
response = request(self.device, b'ZDX')
if self.is_ok(response):
if self.switch.update_time:
self.job.time = bytereverse(
uint32(long(time())) - self.job.time_delta)
data = b''.join([
pack('<8I', *self.job.state),
pack('<3I', self.job.merkle_end, self.job.time,
self.job.difficulty)
])
response = request(self.device,
b''.join([b'>>>>>>>>', data, b'>>>>>>>>']))
if self.is_ok(response):
self.busy = True
self.job_started = time()
self.last_job = Object()
self.last_job.header = self.job.header
self.last_job.merkle_end = self.job.merkle_end
self.last_job.time = self.job.time
self.last_job.difficulty = self.job.difficulty
self.last_job.target = self.job.target
self.last_job.state = self.job.state
self.last_job.job_id = self.job.job_id
self.last_job.extranonce2 = self.job.extranonce2
self.last_job.server = self.job.server
self.last_job.miner = self
self.check_interval = CHECK_INTERVAL
if not self.switch.update_time or bytereverse(
self.job.time) - bytereverse(
self.job.original_time) > 55:
self.update = True
self.job = None
else:
say_line('%s: bad response when sending block data: %s',
(self.id(), response))
else:
say_line('%s: bad response when submitting job (ZDX): %s',
(self.id(), response))
else:
say_line('%s: temperature exceeds cutoff, waiting...', self.id())
def put_job(self):
if self.busy: return
temperature = self.get_temperature()
if temperature < self.cutoff_temp:
response = request(self.device, b'ZDX')
if self.is_ok(response):
if self.switch.update_time:
self.job.time = bytereverse(uint32(long(time())) - self.job.time_delta)
data = b''.join([pack('<8I', *self.job.state), pack('<3I', self.job.merkle_end, self.job.time, self.job.difficulty)])
response = request(self.device, b''.join([b'>>>>>>>>', data, b'>>>>>>>>']))
if self.is_ok(response):
self.busy = True
self.job_started = time()
self.last_job = Object()
self.last_job.header = self.job.header
self.last_job.merkle_end = self.job.merkle_end
self.last_job.time = self.job.time
self.last_job.difficulty = self.job.difficulty
self.last_job.target = self.job.target
self.last_job.state = self.job.state
self.last_job.job_id = self.job.job_id
self.last_job.extranonce2 = self.job.extranonce2
self.last_job.server = self.job.server
self.last_job.miner = self
self.check_interval = CHECK_INTERVAL
if not self.switch.update_time or bytereverse(self.job.time) - bytereverse(self.job.original_time) > 55:
self.update = True
self.job = None
else:
say_line('%s: bad response when sending block data: %s', (self.id(), response))
else:
say_line('%s: bad response when submitting job (ZDX): %s', (self.id(), response))
else:
say_line('%s: temperature exceeds cutoff, waiting...', self.id())
def send(self, result, send_callback):
for nonce in result.miner.nonce_generator(result.nonces):
h = hash(result.state, result.merkle_end, result.time, result.difficulty, nonce)
if h[7] != 0:
hash6 = pack('I', long(h[6])).encode('hex')
say_line('Verification failed, check hardware! (%s, %s)', (result.miner.id(), hash6))
return True # consume this particular result
else:
self.diff1_found(bytereverse(h[6]), result.target[6])
if belowOrEquals(h[:7], result.target[:7]):
is_block = belowOrEquals(h[:7], self.true_target[:7])
hash6 = pack('I', long(h[6])).encode('hex')
hash5 = pack('I', long(h[5])).encode('hex')
self.sent[nonce] = (is_block, hash6, hash5)
if not send_callback(result, nonce):
return False
return True
def send(self, result, send_callback):
for nonce in result.miner.nonce_generator(result.nonces):
h = hash(result.state, result.merkle_end, result.time, result.difficulty, nonce)
if h[7] != 0:
hash6 = pack('I', long(h[6])).encode('hex')
say_line('Verification failed, check hardware! (%s, %s)', (result.miner.id(), hash6))
return True # consume this particular result
else:
self.diff1_found(bytereverse(h[6]), result.target[6])
if belowOrEquals(h[:7], result.target[:7]):
is_block = belowOrEquals(h[:7], self.true_target[:7])
hash6 = pack('I', long(h[6])).encode('hex')
hash5 = pack('I', long(h[5])).encode('hex')
self.sent[nonce] = (is_block, hash6, hash5)
if not send_callback(result, nonce):
return False
return True
def send(self, result, send_callback):
for nonce in result.miner.nonce_generator(result.nonces):
# h = hash(result.state, result.merkle_end, result.time, result.difficulty, nonce)
hx = ''.join(pack('>19I', *result.dataX))
qh = skeinhash(''.join([hx, pack('>I', long(nonce))]))
h = unpack('>8I', qh)
#if h[6] & 0xf == 0:
# say_line('Nonce: %08x, hash: %s, h6: %08x', (nonce, qh.encode('hex'), h[6]))
if qh[-3:] != '\x00\x00\x00':
hash7 = pack('<I', long(h[7])).encode('hex')
say_line('Verification failed, check hardware! (%s, %s, %08x)', (result.miner.id(), hash7, nonce))
say_line('data %s' % ''.join([hx, pack('>I', long(nonce))]).encode('hex'))
return True # consume this particular result
else:
self.diff1_found(bytereverse(h[6]), result.target[6])
if belowOrEquals(h[:7], result.target[:7]):
is_block = belowOrEquals(h[:7], self.true_target[:7])
hash6 = pack('<I', long(h[6])).encode('hex')
hash5 = pack('<I', long(h[5])).encode('hex')
self.sent[nonce] = (is_block, hash6, hash5)
if not send_callback(result, nonce):
return False
return True
def mining_thread(self):
say_line('started OpenCL miner on platform %d, device %d (%s)', (self.options.platform, self.device_index, self.device_name))
(self.defines, rate_divisor, hashspace) = if_else(self.vectors, ('-DVECTORS', 500, 0x7FFFFFFF), ('', 1000, 0xFFFFFFFF))
self.defines += (' -DOUTPUT_SIZE=' + str(self.output_size))
self.defines += (' -DOUTPUT_MASK=' + str(self.output_size - 1))
self.load_kernel()
frame = 1.0 / max(self.frames, 3)
unit = self.worksize * 256
global_threads = unit * 10
queue = cl.CommandQueue(self.context)
last_rated_pace = last_rated = last_n_time = last_temperature = time()
base = last_hash_rate = threads_run_pace = threads_run = 0
output = np.zeros(self.output_size + 1, np.uint32)
output_buffer = cl.Buffer(self.context, cl.mem_flags.WRITE_ONLY | cl.mem_flags.USE_HOST_PTR, hostbuf=output)
self.kernel.set_arg(20, output_buffer)
work = None
temperature = 0
while True:
if self.should_stop: return
sleep(self.frameSleep)
if (not work) or (not self.work_queue.empty()):
try:
work = self.work_queue.get(True, 1)
except Empty: continue
else:
if not work: continue
nonces_left = hashspace
state = work.state
state2 = work.state2
f = work.f
self.kernel.set_arg(0, state[0])
self.kernel.set_arg(1, state[1])
self.kernel.set_arg(2, state[2])
self.kernel.set_arg(3, state[3])
self.kernel.set_arg(4, state[4])
self.kernel.set_arg(5, state[5])
self.kernel.set_arg(6, state[6])
self.kernel.set_arg(7, state[7])
self.kernel.set_arg(8, state2[1])
self.kernel.set_arg(9, state2[2])
self.kernel.set_arg(10, state2[3])
self.kernel.set_arg(11, state2[5])
self.kernel.set_arg(12, state2[6])
self.kernel.set_arg(13, state2[7])
self.kernel.set_arg(15, f[0])
self.kernel.set_arg(16, f[1])
self.kernel.set_arg(17, f[2])
self.kernel.set_arg(18, f[3])
self.kernel.set_arg(19, f[4])
if temperature < self.cutoff_temp:
self.kernel.set_arg(14, pack('I', base))
cl.enqueue_nd_range_kernel(queue, self.kernel, (global_threads,), (self.worksize,))
nonces_left -= global_threads
threads_run_pace += global_threads
threads_run += global_threads
base = uint32(base + global_threads)
else:
threads_run_pace = 0
last_rated_pace = time()
sleep(self.cutoff_interval)
now = time()
if self.adapterIndex != None:
t = now - last_temperature
if temperature >= self.cutoff_temp or t > 1:
last_temperature = now
with adl_lock:
temperature = self.get_temperature()
t = now - last_rated_pace
if t > 1:
rate = (threads_run_pace / t) / rate_divisor
last_rated_pace = now; threads_run_pace = 0
r = last_hash_rate / rate
if r < 0.9 or r > 1.1:
global_threads = max(unit * int((rate * frame * rate_divisor) / unit), unit)
last_hash_rate = rate
t = now - last_rated
if t > self.options.rate:
self.update_rate(now, threads_run, t, work.targetQ, rate_divisor)
last_rated = now; threads_run = 0
queue.finish()
cl.enqueue_read_buffer(queue, output_buffer, output)
queue.finish()
if output[self.output_size]:
result = Object()
result.header = work.header
result.merkle_end = work.merkle_end
result.time = work.time
result.difficulty = work.difficulty
result.target = work.target
result.state = np.array(state)
result.nonces = np.array(output)
result.job_id = work.job_id
result.extranonce2 = work.extranonce2
result.server = work.server
result.miner = self
self.switch.put(result)
output.fill(0)
cl.enqueue_write_buffer(queue, output_buffer, output)
if not self.switch.update_time:
if nonces_left < 3 * global_threads * self.frames:
self.update = True
nonces_left += 0xFFFFFFFFFFFF
elif 0xFFFFFFFFFFF < nonces_left < 0xFFFFFFFFFFFF:
say_line('warning: job finished, %s is idle', self.id())
work = None
elif now - last_n_time > 1:
work.time = bytereverse(bytereverse(work.time) + 1)
state2 = partial(state, work.merkle_end, work.time, work.difficulty, f)
calculateF(state, work.merkle_end, work.time, work.difficulty, f, state2)
self.kernel.set_arg(8, state2[1])
self.kernel.set_arg(9, state2[2])
self.kernel.set_arg(10, state2[3])
self.kernel.set_arg(11, state2[5])
self.kernel.set_arg(12, state2[6])
self.kernel.set_arg(13, state2[7])
self.kernel.set_arg(15, f[0])
self.kernel.set_arg(16, f[1])
self.kernel.set_arg(17, f[2])
self.kernel.set_arg(18, f[3])
self.kernel.set_arg(19, f[4])
last_n_time = now
self.update_time_counter += 1
if self.update_time_counter >= self.switch.max_update_time:
self.update = True
self.update_time_counter = 1
def set_difficulty(self, difficulty):
self.difficulty = difficulty
bits = '%08x' % bytereverse(difficulty)
true_target = '%064x' % (int(bits[2:], 16) * 2 ** (8 * (int(bits[:2], 16) - 3)),)
true_target = ''.join(list(chunks(true_target, 2))[::-1])
self.true_target = unpack('<8I', true_target.decode('hex'))
def mining_thread(self):
say_line('started BFL miner on %s', (self.id()))
while not self.should_stop:
try:
self.device = open_device(self.port)
response = init_device(self.device)
if not is_good_init(response):
say_line('Failed to initialize %s (response: %s), retrying...', (self.id(), response))
self.device.close()
self.device = None
sleep(1)
continue
last_rated = time()
iterations = 0
self.job = None
self.busy = False
while not self.should_stop:
if (not self.job) or (not self.work_queue.empty()):
try:
self.job = self.work_queue.get(True, 1)
except Empty:
if not self.busy:
continue
else:
if not self.job and not self.busy:
continue
targetQ = self.job.targetQ
self.job.original_time = self.job.time
self.job.time_delta = uint32(long(time())) - bytereverse(self.job.time)
if not self.busy:
self.put_job()
else:
result = self.check_result()
if result:
now = time()
self.busy = False
r = self.last_job
job_duration = now - self.job_started
self.put_job()
self.min_interval = min(self.min_interval, job_duration)
iterations += 4294967296
t = now - last_rated
if t > self.options.rate:
self.update_rate(now, iterations, t, targetQ)
last_rated = now; iterations = 0
if result != b'NO-NONCE\n':
r.nonces = result
self.switch.put(r)
sleep(self.min_interval - (CHECK_INTERVAL * 2))
else:
if result is None:
self.check_interval = min(self.check_interval * 2, 1)
sleep(self.check_interval)
except Exception:
say_exception()
if self.device:
self.device.close()
self.device = None
sleep(1)
def mining_thread(self):
say_line('started BFL miner on %s', (self.id()))
while not self.should_stop:
try:
self.device = open_device(self.port)
response = init_device(self.device)
if not is_good_init(response):
say_line(
'Failed to initialize %s (response: %s), retrying...',
(self.id(), response))
self.device.close()
self.device = None
sleep(1)
continue
last_rated = time()
iterations = 0
self.job = None
self.busy = False
while not self.should_stop:
if (not self.job) or (not self.work_queue.empty()):
try:
self.job = self.work_queue.get(True, 1)
except Empty:
if not self.busy:
continue
else:
if not self.job and not self.busy:
continue
targetQ = self.job.targetQ
self.job.original_time = self.job.time
self.job.time_delta = uint32(long(
time())) - bytereverse(self.job.time)
if not self.busy:
self.put_job()
else:
result = self.check_result()
if result:
now = time()
self.busy = False
r = self.last_job
job_duration = now - self.job_started
self.put_job()
self.min_interval = min(self.min_interval,
job_duration)
iterations += 4294967296
t = now - last_rated
if t > self.options.rate:
self.update_rate(now, iterations, t, targetQ)
last_rated = now
iterations = 0
if result != b'NO-NONCE\n':
r.nonces = result
self.switch.put(r)
sleep(self.min_interval - (CHECK_INTERVAL * 2))
else:
if result is None:
self.check_interval = min(
self.check_interval * 2, 1)
sleep(self.check_interval)
except Exception:
say_exception()
if self.device:
self.device.close()
self.device = None
sleep(1)
