fc9c057b1a
Makes DistributedTPURewritePass::AssignArgsAndRetvalsToCores() support TUPLE sharding for return values. PiperOrigin-RevId: 324697874 Change-Id: I3039da1731c9622ebeb0bf9c3b45185e220267af
58 lines
2.3 KiB
C++
58 lines
2.3 KiB
C++
/* Copyright 2017 The TensorFlow Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==============================================================================*/
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#ifndef TENSORFLOW_COMPILER_TF2XLA_SHARDING_UTIL_H_
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#define TENSORFLOW_COMPILER_TF2XLA_SHARDING_UTIL_H_
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#include <string>
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#include "tensorflow/compiler/xla/client/sharding_builder.h"
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#include "tensorflow/compiler/xla/status_macros.h"
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#include "tensorflow/core/graph/graph.h"
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#include "tensorflow/core/lib/core/status.h"
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namespace tensorflow {
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// Parses the op sharding from the 'replicated core' device_name <device_name>.
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// Returns an error:
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// - if the device name is invalid.
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// - the core is parsed and is out of the range [0, num_cores_per_replica).
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//
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// Otherwise, returns either:
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// - explicit_sharding if explicit_sharding.has_value()
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// - a non-value if there is no assigned core or
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// - a sharding set as per xla::sharding_builder::AssignDevice.
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xla::StatusOr<absl::optional<xla::OpSharding>> ParseShardingFromDevice(
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const string& device_name, int num_cores_per_replica,
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absl::optional<xla::OpSharding> explicit_sharding = absl::nullopt);
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xla::StatusOr<absl::optional<xla::OpSharding>> ParseShardingFromDevice(
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const Node& node, int num_cores_per_replica);
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xla::StatusOr<absl::optional<xla::OpSharding>> ParseShardingFromDevice(
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const NodeDef& node_def, int num_cores_per_replica);
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xla::StatusOr<absl::optional<xla::OpSharding>> ParseShardingFromEdgeSource(
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const Edge& edge, int num_cores_per_replica);
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void SetShardingDeviceAssignmentFromNode(const Node& src, Node* dst);
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// Get sharding inforamtion from node.
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xla::StatusOr<absl::optional<xla::OpSharding>> GetShardingFromNodeDef(
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const NodeDef& node_def);
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} // namespace tensorflow
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#endif // TENSORFLOW_COMPILER_TF2XLA_SHARDING_UTIL_H_
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