Multiprocessing PoW fixes and improvements
- the multiprocessing PoW should now work correctly - it also should be interruptible correctly and the GUI will ask about it during exit
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GPG Key ID:
0C5F50C0B5F37D87
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@ -2735,8 +2735,7 @@ class MyForm(settingsmixin.SMainWindow):
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waitForSync = False
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# C PoW currently doesn't support interrupting and OpenCL is untested
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# Since Windows doesn't have UNIX-style signals, it probably doesn't work on Win either, so disabling there
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if getPowType == "python" and ('win32' in sys.platform or 'win64' in sys.platform) and (powQueueSize() > 0 or invQueueSize() > 0):
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if getPowType() == "python" and (powQueueSize() > 0 or invQueueSize() > 0):
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reply = QtGui.QMessageBox.question(self, _translate("MainWindow", "Proof of work pending"),
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_translate("MainWindow", "%n object(s) pending proof of work", None, QtCore.QCoreApplication.CodecForTr, powQueueSize()) + ", " +
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_translate("MainWindow", "%n object(s) waiting to be distributed", None, QtCore.QCoreApplication.CodecForTr, invQueueSize()) + "\n\n" +
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@ -45,10 +45,9 @@ def signal_handler(signal, frame):
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logger.error("Got signal %i in %s/%s", signal, current_process().name, current_thread().name)
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if current_process().name == "RegExParser":
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# on Windows this isn't triggered, but it's fine, it has its own process termination thing
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print "RegExParser interrupted"
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raise SystemExit
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if current_process().name != "MainProcess":
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raise StopIteration("Interrupted")
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if "PoolWorker" in current_process().name:
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raise SystemExit
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if current_thread().name != "MainThread":
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return
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logger.error("Got signal %i", signal)
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@ -2,11 +2,11 @@
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#import time
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#from multiprocessing import Pool, cpu_count
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import hashlib
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import signal
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from struct import unpack, pack
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import sys
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import time
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from debug import logger
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from shared import config, frozen, codePath, shutdown, safeConfigGetBoolean, UISignalQueue
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import shared
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import openclpow
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import tr
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import os
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@ -30,7 +30,7 @@ def _set_idle():
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def _pool_worker(nonce, initialHash, target, pool_size):
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_set_idle()
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trialValue = float('inf')
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while trialValue > target and shutdown == 0:
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while trialValue > target:
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nonce += pool_size
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trialValue, = unpack('>Q',hashlib.sha512(hashlib.sha512(pack('>Q',nonce) + initialHash).digest()).digest()[0:8])
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return [trialValue, nonce]
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@ -39,57 +39,52 @@ def _doSafePoW(target, initialHash):
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logger.debug("Safe PoW start")
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nonce = 0
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trialValue = float('inf')
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while trialValue > target and shutdown == 0:
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while trialValue > target and shared.shutdown == 0:
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nonce += 1
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trialValue, = unpack('>Q',hashlib.sha512(hashlib.sha512(pack('>Q',nonce) + initialHash).digest()).digest()[0:8])
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if shutdown != 0:
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if shared.shutdown != 0:
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raise StopIteration("Interrupted")
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logger.debug("Safe PoW done")
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return [trialValue, nonce]
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def _doFastPoW(target, initialHash):
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logger.debug("Fast PoW start")
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import time
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from multiprocessing import Pool, cpu_count
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try:
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pool_size = cpu_count()
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except:
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pool_size = 4
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try:
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maxCores = config.getint('bitmessagesettings', 'maxcores')
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maxCores = shared.config.getint('bitmessagesettings', 'maxcores')
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except:
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maxCores = 99999
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if pool_size > maxCores:
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pool_size = maxCores
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# temporarily disable handlers
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#int_handler = signal.getsignal(signal.SIGINT)
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#term_handler = signal.getsignal(signal.SIGTERM)
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#signal.signal(signal.SIGINT, signal.SIG_IGN)
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#signal.signal(signal.SIGTERM, signal.SIG_IGN)
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pool = Pool(processes=pool_size)
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result = []
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for i in range(pool_size):
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result.append(pool.apply_async(_pool_worker, args=(i, initialHash, target, pool_size)))
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# re-enable handlers
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#signal.signal(signal.SIGINT, int_handler)
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#signal.signal(signal.SIGTERM, term_handler)
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while True:
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if shutdown >= 1:
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if shared.shutdown > 0:
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try:
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pool.terminate()
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pool.join()
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except:
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pass
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raise StopIteration("Interrupted")
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for i in range(pool_size):
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if result[i].ready():
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try:
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result[i].successful()
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except AssertionError:
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pool.terminate()
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pool.join()
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raise StopIteration("Interrupted")
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result = result[i].get()
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pool.terminate()
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pool.join() #Wait for the workers to exit...
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pool.join()
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logger.debug("Fast PoW done")
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return result[0], result[1]
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time.sleep(0.2)
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@ -102,7 +97,7 @@ def _doCPoW(target, initialHash):
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logger.debug("C PoW start")
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nonce = bmpow(out_h, out_m)
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trialValue, = unpack('>Q',hashlib.sha512(hashlib.sha512(pack('>Q',nonce) + initialHash).digest()).digest()[0:8])
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if shutdown != 0:
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if shared.shutdown != 0:
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raise StopIteration("Interrupted")
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logger.debug("C PoW done")
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return [trialValue, nonce]
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@ -114,11 +109,11 @@ def _doGPUPoW(target, initialHash):
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#print "{} - value {} < {}".format(nonce, trialValue, target)
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if trialValue > target:
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deviceNames = ", ".join(gpu.name for gpu in openclpow.gpus)
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UISignalQueue.put(('updateStatusBar', tr._translate("MainWindow",'Your GPU(s) did not calculate correctly, disabling OpenCL. Please report to the developers.')))
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shared.UISignalQueue.put(('updateStatusBar', tr._translate("MainWindow",'Your GPU(s) did not calculate correctly, disabling OpenCL. Please report to the developers.')))
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logger.error("Your GPUs (%s) did not calculate correctly, disabling OpenCL. Please report to the developers.", deviceNames)
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openclpow.ctx = False
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raise Exception("GPU did not calculate correctly.")
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if shutdown != 0:
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if shared.shutdown != 0:
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raise StopIteration("Interrupted")
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logger.debug("GPU PoW done")
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return [trialValue, nonce]
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@ -149,17 +144,17 @@ def estimate(difficulty, format = False):
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return ret
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def getPowType():
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if safeConfigGetBoolean('bitmessagesettings', 'opencl') and openclpow.has_opencl():
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if shared.safeConfigGetBoolean('bitmessagesettings', 'opencl') and openclpow.has_opencl():
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return "OpenCL"
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if bmpow:
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return "C"
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return "python"
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def run(target, initialHash):
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if shutdown != 0:
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if shared.shutdown != 0:
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raise
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target = int(target)
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if safeConfigGetBoolean('bitmessagesettings', 'opencl') and openclpow.has_opencl():
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if shared.safeConfigGetBoolean('bitmessagesettings', 'opencl') and openclpow.has_opencl():
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# trialvalue1, nonce1 = _doGPUPoW(target, initialHash)
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# trialvalue, nonce = _doFastPoW(target, initialHash)
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# print "GPU: %s, %s" % (trialvalue1, nonce1)
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@ -178,7 +173,7 @@ def run(target, initialHash):
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raise
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except:
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pass # fallback
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if frozen == "macosx_app" or not frozen:
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if shared.frozen == "macosx_app" or not shared.frozen:
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# on my (Peter Surda) Windows 10, Windows Defender
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# does not like this and fights with PyBitmessage
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# over CPU, resulting in very slow PoW
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@ -207,7 +202,7 @@ if "win32" == sys.platform:
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bitmsglib = 'bitmsghash64.dll'
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try:
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# MSVS
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bso = ctypes.WinDLL(os.path.join(codePath(), "bitmsghash", bitmsglib))
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bso = ctypes.WinDLL(os.path.join(shared.codePath(), "bitmsghash", bitmsglib))
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logger.info("Loaded C PoW DLL (stdcall) %s", bitmsglib)
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bmpow = bso.BitmessagePOW
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bmpow.restype = ctypes.c_ulonglong
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@ -217,7 +212,7 @@ if "win32" == sys.platform:
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logger.error("C PoW test fail.", exc_info=True)
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try:
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# MinGW
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bso = ctypes.CDLL(os.path.join(codePath(), "bitmsghash", bitmsglib))
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bso = ctypes.CDLL(os.path.join(shared.codePath(), "bitmsghash", bitmsglib))
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logger.info("Loaded C PoW DLL (cdecl) %s", bitmsglib)
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bmpow = bso.BitmessagePOW
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bmpow.restype = ctypes.c_ulonglong
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@ -228,7 +223,7 @@ if "win32" == sys.platform:
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bso = None
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else:
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try:
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bso = ctypes.CDLL(os.path.join(codePath(), "bitmsghash", bitmsglib))
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bso = ctypes.CDLL(os.path.join(shared.codePath(), "bitmsghash", bitmsglib))
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logger.info("Loaded C PoW DLL %s", bitmsglib)
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except:
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bso = None
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@ -17,7 +17,6 @@ import pickle
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import Queue
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import random
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from multiprocessing import active_children, Queue as mpQueue, Lock as mpLock
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from signal import SIGTERM
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import socket
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import sys
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import stat
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@ -512,12 +511,6 @@ def doCleanShutdown():
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parserInputQueue.put(None, False)
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except Queue.Full:
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pass
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for child in active_children():
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try:
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logger.info("Killing PoW child %i", child.pid)
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os.kill(child.pid, SIGTERM)
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except:
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pass
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broadcastToSendDataQueues((0, 'shutdown', 'no data'))
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objectProcessorQueue.put(('checkShutdownVariable', 'no data'))
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for thread in threading.enumerate():
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