diff options
Diffstat (limited to 'generator/photon.py')
-rw-r--r-- | generator/photon.py | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/generator/photon.py b/generator/photon.py deleted file mode 100644 index 6c656b2..0000000 --- a/generator/photon.py +++ /dev/null @@ -1,97 +0,0 @@ -import g4gen -import multiprocessing -import numpy as np -import itertools -import threading -import zmq -import uuid - -class G4GeneratorProcess(multiprocessing.Process): - def __init__(self, idnum, material, vertex_socket_address, photon_socket_address, seed=None): - multiprocessing.Process.__init__(self) - - self.idnum = idnum - self.material = material - self.vertex_socket_address = vertex_socket_address - self.photon_socket_address = photon_socket_address - self.seed = seed - self.daemon = True - - def run(self): - gen = g4gen.G4Generator(self.material, seed=self.seed) - context = zmq.Context() - vertex_socket = context.socket(zmq.PULL) - vertex_socket.connect(self.vertex_socket_address) - photon_socket = context.socket(zmq.PUSH) - photon_socket.connect(self.photon_socket_address) - - # Signal with the photon socket that we are online - # and ready for messages. - photon_socket.send('READY') - - while True: - ev = vertex_socket.recv_pyobj() - ev.photons_beg = gen.generate_photons(ev.vertices) - #print 'type(ev.photons_beg) is %s' % type(ev.photons_beg) - photon_socket.send_pyobj(ev) - -def partition(num, partitions): - """Generator that returns num//partitions, with the last item including - the remainder. - - Useful for partitioning a number into mostly equal parts while preserving - the sum. - - Examples: - >>> list(partition(800, 3)) - [266, 266, 268] - >>> sum(list(partition(800, 3))) - 800 - """ - step = num // partitions - for i in xrange(partitions): - if i < partitions - 1: - yield step - else: - yield step + (num % partitions) - -def vertex_sender(vertex_iterator, vertex_socket): - for vertex in vertex_iterator: - vertex_socket.send_pyobj(vertex) - -def socket_iterator(nelements, socket): - for i in xrange(nelements): - yield socket.recv_pyobj() - -class G4ParallelGenerator(object): - def __init__(self, nprocesses, material, base_seed=None): - self.material = material - if base_seed is None: - base_seed = np.random.randint(100000000) - base_address = 'ipc:///tmp/chroma_'+str(uuid.uuid4()) - self.vertex_address = base_address + '.vertex' - self.photon_address = base_address + '.photon' - self.processes = [ G4GeneratorProcess(i, material, self.vertex_address, self.photon_address, seed=base_seed + i) for i in xrange(nprocesses) ] - - for p in self.processes: - p.start() - - self.zmq_context = zmq.Context() - self.vertex_socket = self.zmq_context.socket(zmq.PUSH) - self.vertex_socket.bind(self.vertex_address) - self.photon_socket = self.zmq_context.socket(zmq.PULL) - self.photon_socket.bind(self.photon_address) - - # Verify everyone is running and connected to avoid - # sending all the events to one client. - for i in xrange(nprocesses): - msg = self.photon_socket.recv() - assert msg == 'READY' - - def generate_events(self, vertex_iterator): - # Doing this to avoid a deadlock caused by putting to one queue - # while getting from another. - vertex_list = list(vertex_iterator) - sender_thread = threading.Thread(target=vertex_sender, args=(vertex_list, self.vertex_socket)) - sender_thread.start() - return socket_iterator(len(vertex_list), self.photon_socket) |