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from absl import flags |
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from absl import logging |
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from tensorflow.core.protobuf import debug_event_pb2 |
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from tensorflow.python.debug.lib import debug_events_writer |
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from tensorflow.python.framework import op_callbacks |
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from tensorflow.python.ops import gen_debug_ops |
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import tensorflow as tf |
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import re |
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import os |
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import json |
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try: |
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import horovod.tensorflow as hvd |
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except ImportError: |
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hvd = None |
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def horovod_enabled(): |
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return hvd is not None and hvd.is_initialized() |
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flags.DEFINE_string(name='dump_config', default=None, |
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help='Defines config for tensor dumping') |
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class _DumpCallback(object): |
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def __init__(self, dump_root, tensor_debug_mode, circular_buffer_size, op_regex, output_regex=None): |
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self._dump_root = dump_root |
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if horovod_enabled(): |
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self._dump_root = os.path.join( |
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self._dump_root, f"rank_{hvd.rank()}") |
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self._tensor_debug_mode = debug_event_pb2.TensorDebugMode.Value( |
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tensor_debug_mode) |
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self._circular_buffer_size = circular_buffer_size |
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self._op_regex = re.compile(op_regex) if isinstance( |
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op_regex, str) else op_regex |
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self._output_regex = re.compile(output_regex) if isinstance( |
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output_regex, str) else output_regex |
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self._tfdbg_run_id = '' |
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self._dump_op_counter = 0 |
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debug_writer_args = { |
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"dump_root": self._dump_root, |
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"circular_buffer_size": self._circular_buffer_size |
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} |
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if not tf.__version__.startswith("2.2"): |
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debug_writer_args["tfdbg_run_id"] = self._tfdbg_run_id |
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self._writer = debug_events_writer.DebugEventsWriter( |
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**debug_writer_args) |
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def callback(self, op_type, inputs, attrs, outputs, op_name=None, graph=None): |
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if op_name is not None and self._op_regex.match(op_name): |
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graph_name = "missing-graph-name" |
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if graph is not None and hasattr(graph, "name"): |
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graph_name = graph.name |
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logging.info("Adding dump op for '%s' of type '%s' from graph '%s'" % ( |
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op_name, op_type, graph_name)) |
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new_outputs = [] |
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for output_slot, output in enumerate(outputs): |
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if self._output_regex is not None and not self._output_regex.match(output.name): |
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logging.info("Skipped output: " + output.name) |
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new_outputs.append(output) |
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continue |
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debug_identity_op_kwargs = { |
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"tfdbg_context_id": graph_name, |
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"op_name": op_name, |
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"output_slot": output_slot, |
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"tensor_debug_mode": self._tensor_debug_mode, |
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"debug_urls": ["file://%s" % self._dump_root], |
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"name": "dump_%d" % self._dump_op_counter |
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} |
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if not tf.__version__.startswith("2.2"): |
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debug_identity_op_kwargs["circular_buffer_size"] = self._circular_buffer_size |
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debug_identity_op_kwargs["tfdbg_run_id"] = self._tfdbg_run_id |
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self._dump_op_counter = self._dump_op_counter + 1 |
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new_outputs.append(gen_debug_ops.debug_identity_v2( |
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output, **debug_identity_op_kwargs)) |
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return new_outputs |
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else: |
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return None |
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def __enter__(self, *args, **kwargs): |
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op_callbacks.add_op_callback(self.callback) |
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logging.info("Enabled tensor dumping") |
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def __exit__(self, *args, **kwargs): |
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op_callbacks.remove_op_callback(self.callback) |
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logging.info("Disabled tensor dumping") |
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def __del__(self): |
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self._writer.Close() |
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class _Dummy(object): |
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def __enter__(self, *args, **kwargs): |
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pass |
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def __exit__(self, *args, **kwargs): |
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pass |
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def dump_callback(config_file=None): |
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if config_file is not None: |
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kwargs = json.load(open(config_file, 'r')) |
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return _DumpCallback(**kwargs) |
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try: |
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kwargs = json.load(open(flags.FLAGS.dump_config, 'r')) |
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return _DumpCallback(**kwargs) |
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except: |
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return _Dummy() |
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