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58 lines
1.5 KiB
Python
58 lines
1.5 KiB
Python
# Copyright 2023 The JAX Authors.
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#
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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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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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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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"""Python definitions for third_party.jax.jaxlib.mosaic.python.tpu
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These definitions are needed internally by the tpu module.
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TODO(tlongeri): Migrate definitions to tpu module
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"""
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import collections
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import enum
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from typing import Literal
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TargetTuple = collections.namedtuple("TargetTuple", ["sublanes", "lanes"])
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@enum.unique
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class Direction(enum.Enum):
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SUBLANES = "sublanes"
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LANES = "lanes"
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SUBELEMENTS = "subelements"
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def __repr__(self):
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return self.name.lower()
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SUBLANES = Direction.SUBLANES
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LANES = Direction.LANES
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SUBELEMENTS = Direction.SUBELEMENTS
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class Replicated(enum.Enum):
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REPLICATED = "*"
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def __repr__(self):
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return "*"
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__str__ = __repr__
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def __bool__(self):
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return False # Useful because we can then say `offset or 0`
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REPLICATED = Replicated.REPLICATED
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Offset = int | Literal[REPLICATED]
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class ImplicitDim(enum.IntEnum):
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MINOR = -1
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SECOND_MINOR = -2
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def __repr__(self) -> str:
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return str(int(self))
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