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| author |  Yuefeng Zhou <yuefengz@google.com> | 2018-09-28 10:25:42 -0700 |
|---|---|---|
| committer |  TensorFlower Gardener <gardener@tensorflow.org> | 2018-09-28 10:29:45 -0700 |
| commit | 301e3043e67493ce3777d2b36b43d0210f7b920c (patch) | |
| tree | 6fd48fe19adc5bbfc5b31568332bd392104e563f /tensorflow/contrib/distribute/python/values.py | |
| parent | b47f0b1b0ac8047d53a824f4ca82a12387a16e4d (diff) | |
Disable auto_shard for MirroredStrategy by default.
We will re-enable it when it is more robust.
PiperOrigin-RevId: 214956066
Diffstat (limited to 'tensorflow/contrib/distribute/python/values.py')
| -rw-r--r-- | tensorflow/contrib/distribute/python/values.py | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/tensorflow/contrib/distribute/python/values.py b/tensorflow/contrib/distribute/python/values.py index cce41e7717..327775a729 100644 --- a/tensorflow/contrib/distribute/python/values.py +++ b/tensorflow/contrib/distribute/python/values.py @@ -814,7 +814,8 @@ class MultiWorkerDataset(object): eager mode. """ - def __init__(self, dataset_fn, worker_device_map, prefetch_on_device=None): + def __init__(self, dataset_fn, worker_device_map, prefetch_on_device=None, + auto_shard=False): """Initialize the MultiWorkerDataset object. Args: @@ -822,6 +823,7 @@ class MultiWorkerDataset(object): worker_device_map: a dict mapping from each worker to a list of devices that belong to this worker. prefetch_on_device: whether to prefetch to devices. + auto_shard: whether to auto-shard the dataset. """ self._worker_device_map = worker_device_map self._datasets = {} @@ -831,8 +833,9 @@ class MultiWorkerDataset(object): six.iteritems(worker_device_map)): with ops.device(worker): worker_input = dataset_fn() - worker_input = input_ops.auto_shard_dataset( - worker_input, len(worker_device_map), i) + if auto_shard: + worker_input = input_ops.auto_shard_dataset( + worker_input, len(worker_device_map), i) self._datasets[worker] = PerDeviceDataset( worker_input, worker_devices, |