def batch_generator(corpus, k, V, thread_batch, lockedEta):
# ids
doc_id = 0
batch_id = 0
round_id = 0
# temp data
doc_buffer = []
voc_temp = set()
# process contral
nBatch = LockedSum(0, Lock())
for doc in corpus:
for vid, count in doc:
voc_temp.add(vid)
doc_buffer.append(doc)
if doc_id % thread_batch == thread_batch - 1:
eta_temp = lockedEta.get_eta(k, voc_temp)
etaSum = lockedEta.get_eta_sum(k, V)
alpha = _mea.get_alpha(k)
yield (doc_buffer, eta_temp, etaSum, alpha, batch_id)
# clear buffer
doc_buffer = []
voc_temp = set()
batch_id += 1
doc_id += 1
# some remain doc may not be processed
if len(doc_buffer) > 0:
eta_temp = lockedEta.get_eta(k, voc_temp)
etaSum = lockedEta.get_eta_sum(k, V)
alpha = _mea.get_alpha(k)
yield (doc_buffer, eta_temp, etaSum, alpha, batch_id)
batch_id += 1
def asyn_framework(corpus,
k,
V,
nthread,
minibatch,
var_path,
record_eta=False):
# configs
thread_batch = minibatch / nthread
# ids
doc_id = 0
batch_id = 0
round_id = 0
# temp data
doc_buffer = []
voc_temp = set()
old_doc_seen = {}
old_doc_seen[0] = 0
# global data
lockedEta = LockedEta({}, Lock())
# process contral
pool = Pool(processes=nthread)
nActPro = LockedSum(0, Lock())
nBatch = LockedSum(0, Lock())
results = []
for doc in corpus:
for vid, count in doc:
voc_temp.add(vid)
doc_buffer.append(doc)
if doc_id % thread_batch == thread_batch - 1:
eta_temp = lockedEta.get_eta(k, voc_temp)
etaSum = lockedEta.get_eta_sum(k, V)
alpha = _mea.get_alpha(k)
while True: # check for active processes amount
if nActPro.get_value() < nthread:
break
cb = lambda x: callback(x, lockedEta, nActPro, nBatch, var_path,
nthread, thread_batch, old_doc_seen)
result = pool.apply_async(asyn_workder,
(doc_buffer, eta_temp, etaSum, alpha),
callback=cb)
results.append(result)
nActPro.add_value(1)
# clear buffer
doc_buffer = []
voc_temp = set()
batch_id += 1
doc_id += 1
# some remain doc may not be processed
if len(doc_buffer) > 0:
eta_temp = lockedEta.get_eta(k, voc_temp)
etaSum = lockedEta.get_eta_sum(k, V)
alpha = _mea.get_alpha(k)
while True: # check for active processes amount
if nActPro.get_value() < nthread:
break
cb = lambda x: callback(x, lockedEta, nActPro, nBatch, var_path,
nthread, thread_batch, old_doc_seen)
result = pool.apply_async(asyn_workder,
(doc_buffer, eta_temp, etaSum, alpha),
callback=cb)
results.append(result)
nActPro.add_value(1)
batch_id += 1
for r in results:
r.wait()
if nBatch.get_value() % nthread != 0:
nBatch_value = nBatch.get_value()
fn = 'eta.{}.pickle'.format(nBatch_value / nthread)
path = os.path.join(var_path, fn)
lockedEta.write_eta(path)
return lockedEta.eta