chainer.iterators
Chainer provides some iterators that implement typical strategies to create mini-batches by iterating over datasets. SerialIterator is the simplest one, which extract mini-batches in the main thread. MultiprocessIterator and MultithreadIterator are a parallelized version of SerialIterator. It maintains worker subprocesses and subthreads to load the next mini-batch in parallel.
chainer.iterators.SerialIterator chainer.iterators.MultiprocessIterator chainer.iterators.MultithreadIterator