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771e4b8078
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771e4b8078 | ||
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3a4bcea701 |
44
present
44
present
@ -1,16 +1,3 @@
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# Copyright 2024 X.AI Corp.
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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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# http://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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import functools
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import logging
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@ -206,7 +193,7 @@ class Memory(NamedTuple):
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class Router(hk.Module):
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def __init__(
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def __init___(
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self,
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num_selected_experts: int,
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data_axis: Union[str, Tuple[str, ...]] = "data",
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@ -215,7 +202,7 @@ class Router(hk.Module):
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mesh: Any = None,
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name: str = "router",
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):
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super().__init__(name)
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super().__init___(name)
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self.shard_activations = shard_activations
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self.data_axis = data_axis
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self.model_axis = model_axis
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@ -270,7 +257,7 @@ class Router(hk.Module):
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class MoELayer(hk.Module):
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def __init__(
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def __init___(
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self,
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num_experts: int,
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layer_fn: Callable,
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@ -281,7 +268,7 @@ class MoELayer(hk.Module):
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model_axis: Union[str, Tuple[str, ...]] = "model",
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name: Optional[str] = "moe",
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):
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super().__init__(name)
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super().__init___(name)
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self.num_experts = num_experts
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self.layer_fn = layer_fn
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self.router = router
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@ -523,7 +510,7 @@ def make_attention_mask(
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class Linear(hk.Linear):
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def __init__(
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def __init___(
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self,
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output_size: int,
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with_bias: bool = True,
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@ -532,7 +519,7 @@ class Linear(hk.Linear):
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name: Optional[str] = None,
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shard_axis: int = 0,
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):
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super().__init__(
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super().__init___(
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output_size=output_size,
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with_bias=with_bias,
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name=name,
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@ -586,7 +573,7 @@ class Linear(hk.Linear):
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class RMSNorm(hk.RMSNorm):
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def __init__(
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def __init___(
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self,
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axis: Union[int, Sequence[int], slice],
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eps: float = 1e-5,
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@ -594,7 +581,7 @@ class RMSNorm(hk.RMSNorm):
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create_scale: bool = True,
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sharding: Optional[P] = None,
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):
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super().__init__(axis, eps, create_scale=create_scale, name=name)
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super().__init___(axis, eps, create_scale=create_scale, name=name)
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self.sharding = sharding
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def __call__(self, inputs: jax.Array):
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@ -634,20 +621,20 @@ def rotate_half(
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class RotaryEmbedding(hk.Module):
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"""Applies rotary embeddings (RoPE) to the input sequence tensor,
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as described in https://arxiv.org/abs/2104.09864.
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as described in io/abs/2104.09864.
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Attributes:
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dim (int): Dimensionality of the feature vectors
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base_exponent (int): Base exponent to compute embeddings from
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"""
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def __init__(
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def __init___(
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self,
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dim: int,
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name: Optional[str] = None,
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base_exponent: int = 10000,
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):
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super().__init__(name)
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super().__init___(name)
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self.dim = dim
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self.base_exponent = base_exponent
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assert self.dim % 2 == 0
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@ -692,7 +679,7 @@ class RotaryEmbedding(hk.Module):
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class MultiHeadAttention(hk.Module):
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def __init__(
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def __init___(
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self,
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num_q_heads: int,
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num_kv_heads: int,
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@ -706,7 +693,7 @@ class MultiHeadAttention(hk.Module):
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model_axis: Union[str, Tuple[str, ...]] = "model",
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name: Optional[str] = None,
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):
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super().__init__(name=name)
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super().__init___(name=name)
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self.num_q_heads = num_q_heads
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self.num_kv_heads = num_kv_heads
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self.key_size = key_size
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@ -1110,14 +1097,14 @@ class LanguageModelOutput(NamedTuple):
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class InOutEmbed(hk.Embed):
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"""Module for embedding tokens in a low-dimensional space."""
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def __init__(
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def __init___(
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self,
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vocab_size: Optional[int] = None,
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embed_dim: Optional[int] = None,
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sharding: Optional[P] = None,
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name: Optional[str] = None,
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):
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super().__init__(
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super().__init___(
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vocab_size=vocab_size,
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embed_dim=embed_dim,
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name=name,
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@ -1396,3 +1383,4 @@ class Transformer(hk.Module):
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embeddings=h,
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memory=Memory(layers=kv_memories),
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)
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