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vllm.model_executor.models.granitemoeshared

Inference-only GraniteMoeShared model.

The architecture is the same as granitemoe but with the addition of shared experts.

GraniteMoeSharedDecoderLayer

Bases: Module

Source code in vllm/model_executor/models/granitemoeshared.py 
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class GraniteMoeSharedDecoderLayer(nn.Module):

    def __init__(
        self,
        config: GraniteMoeSharedConfig,
        cache_config: Optional[CacheConfig] = None,
        quant_config: Optional[QuantizationConfig] = None,
        prefix: str = "",
    ) -> None:
        super().__init__()
        self.hidden_size = config.hidden_size
        # Requires transformers > 4.32.0
        rope_theta = getattr(config, "rope_theta", 10000)
        self.self_attn = GraniteMoeAttention(
            hidden_size=self.hidden_size,
            num_heads=config.num_attention_heads,
            max_position=config.max_position_embeddings,
            num_kv_heads=config.num_key_value_heads,
            rope_theta=rope_theta,
            cache_config=cache_config,
            quant_config=quant_config,
            prefix=f"{prefix}.self_attn",
            attention_multiplier=config.attention_multiplier)
        self.block_sparse_moe = GraniteMoeMoE(
            num_experts=config.num_local_experts,
            top_k=config.num_experts_per_tok,
            hidden_size=config.hidden_size,
            intermediate_size=config.intermediate_size,
            quant_config=quant_config,
            prefix=f"{prefix}.block_sparse_moe")
        self.shared_mlp = None if \
            getattr(config, 'shared_intermediate_size', 0) == 0 \
            else GraniteMoeSharedMLP(
                config,
                quant_config=quant_config,
                prefix=f"{prefix}.shared_mlp"
            )

        self.input_layernorm = RMSNorm(config.hidden_size,
                                       eps=config.rms_norm_eps)
        self.post_attention_layernorm = RMSNorm(config.hidden_size,
                                                eps=config.rms_norm_eps)

        self.residual_multiplier = config.residual_multiplier

    def forward(
        self,
        positions: torch.Tensor,
        hidden_states: torch.Tensor,
    ) -> torch.Tensor:
        # Self Attention
        residual = hidden_states
        hidden_states = self.input_layernorm(hidden_states)
        hidden_states = self.self_attn(
            positions=positions,
            hidden_states=hidden_states,
        )
        hidden_states = residual + hidden_states * self.residual_multiplier
        residual = hidden_states
        hidden_states = self.post_attention_layernorm(hidden_states)
        if self.shared_mlp is None:
            hidden_states = self.block_sparse_moe(hidden_states)
        else:
            # create a copy since block_sparse_moe modifies in-place
            moe_hidden_states = hidden_states.clone()
            moe_hidden_states = self.block_sparse_moe(moe_hidden_states)
            hidden_states = moe_hidden_states + self.shared_mlp(hidden_states)
            del moe_hidden_states
        hidden_states = residual + hidden_states * self.residual_multiplier

        return hidden_states

block_sparse_moe instance-attribute 

block_sparse_moe = GraniteMoeMoE(
    num_experts=num_local_experts,
    top_k=num_experts_per_tok,
    hidden_size=hidden_size,
    intermediate_size=intermediate_size,
    quant_config=quant_config,
    prefix=f"{prefix}.block_sparse_moe",
)

hidden_size instance-attribute 

hidden_size = hidden_size

input_layernorm instance-attribute 

input_layernorm = RMSNorm(hidden_size, eps=rms_norm_eps)

post_attention_layernorm instance-attribute 

post_attention_layernorm = RMSNorm(
    hidden_size, eps=rms_norm_eps
)

residual_multiplier instance-attribute 

residual_multiplier = residual_multiplier

self_attn instance-attribute 

self_attn = GraniteMoeAttention(
    hidden_size=hidden_size,
    num_heads=num_attention_heads,
    max_position=max_position_embeddings,
    num_kv_heads=num_key_value_heads,
    rope_theta=rope_theta,
    cache_config=cache_config,
    quant_config=quant_config,
    prefix=f"{prefix}.self_attn",
    attention_multiplier=attention_multiplier,
)

shared_mlp instance-attribute 

shared_mlp = (
    None
    if getattr(config, "shared_intermediate_size", 0) == 0
    else GraniteMoeSharedMLP(
        config,
        quant_config=quant_config,
        prefix=f"{prefix}.shared_mlp",
    )
)

__init__ 

__init__(
    config: GraniteMoeSharedConfig,
    cache_config: Optional[CacheConfig] = None,
    quant_config: Optional[QuantizationConfig] = None,
    prefix: str = "",
) -> None
Source code in vllm/model_executor/models/granitemoeshared.py 
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def __init__(
    self,
    config: GraniteMoeSharedConfig,
    cache_config: Optional[CacheConfig] = None,
    quant_config: Optional[QuantizationConfig] = None,
    prefix: str = "",
) -> None:
    super().__init__()
    self.hidden_size = config.hidden_size
    # Requires transformers > 4.32.0
    rope_theta = getattr(config, "rope_theta", 10000)
    self.self_attn = GraniteMoeAttention(
        hidden_size=self.hidden_size,
        num_heads=config.num_attention_heads,
        max_position=config.max_position_embeddings,
        num_kv_heads=config.num_key_value_heads,
        rope_theta=rope_theta,
        cache_config=cache_config,
        quant_config=quant_config,
        prefix=f"{prefix}.self_attn",
        attention_multiplier=config.attention_multiplier)
    self.block_sparse_moe = GraniteMoeMoE(
        num_experts=config.num_local_experts,
        top_k=config.num_experts_per_tok,
        hidden_size=config.hidden_size,
        intermediate_size=config.intermediate_size,
        quant_config=quant_config,
        prefix=f"{prefix}.block_sparse_moe")
    self.shared_mlp = None if \
        getattr(config, 'shared_intermediate_size', 0) == 0 \
        else GraniteMoeSharedMLP(
            config,
            quant_config=quant_config,
            prefix=f"{prefix}.shared_mlp"
        )

    self.input_layernorm = RMSNorm(config.hidden_size,
                                   eps=config.rms_norm_eps)
    self.post_attention_layernorm = RMSNorm(config.hidden_size,
                                            eps=config.rms_norm_eps)

    self.residual_multiplier = config.residual_multiplier

forward 

forward(positions: Tensor, hidden_states: Tensor) -> Tensor
Source code in vllm/model_executor/models/granitemoeshared.py 
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def forward(
    self,
    positions: torch.Tensor,
    hidden_states: torch.Tensor,
) -> torch.Tensor:
    # Self Attention
    residual = hidden_states
    hidden_states = self.input_layernorm(hidden_states)
    hidden_states = self.self_attn(
        positions=positions,
        hidden_states=hidden_states,
    )
    hidden_states = residual + hidden_states * self.residual_multiplier
    residual = hidden_states
    hidden_states = self.post_attention_layernorm(hidden_states)
    if self.shared_mlp is None:
        hidden_states = self.block_sparse_moe(hidden_states)
    else:
        # create a copy since block_sparse_moe modifies in-place
        moe_hidden_states = hidden_states.clone()
        moe_hidden_states = self.block_sparse_moe(moe_hidden_states)
        hidden_states = moe_hidden_states + self.shared_mlp(hidden_states)
        del moe_hidden_states
    hidden_states = residual + hidden_states * self.residual_multiplier

    return hidden_states

GraniteMoeSharedForCausalLM

Bases: Module, SupportsLoRA, SupportsPP

Source code in vllm/model_executor/models/granitemoeshared.py 
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class GraniteMoeSharedForCausalLM(nn.Module, SupportsLoRA, SupportsPP):
    fall_back_to_pt_during_load = False

    packed_modules_mapping = {
        "qkv_proj": [
            "q_proj",
            "k_proj",
            "v_proj",
        ],
    }

    # LoRA specific attributes
    embedding_modules = {
        "embed_tokens": "input_embeddings",
        "lm_head": "output_embeddings",
    }
    embedding_padding_modules = ["lm_head"]

    def __init__(self, *, vllm_config: VllmConfig, prefix: str = ""):
        super().__init__()
        config = vllm_config.model_config.hf_config
        quant_config = vllm_config.quant_config
        lora_config = vllm_config.lora_config

        self.config = config
        self.lora_config = lora_config

        self.model = GraniteMoeSharedModel(vllm_config=vllm_config,
                                           prefix=maybe_prefix(
                                               prefix, "model"))
        self.unpadded_vocab_size = config.vocab_size
        if lora_config:
            self.unpadded_vocab_size += lora_config.lora_extra_vocab_size
        self.lm_head = ParallelLMHead(
            self.unpadded_vocab_size,
            config.hidden_size,
            org_num_embeddings=config.vocab_size,
            padding_size=DEFAULT_VOCAB_PADDING_SIZE
            # We need bigger padding if using lora for kernel
            # compatibility
            if not lora_config else lora_config.lora_vocab_padding_size,
            quant_config=quant_config,
            prefix=maybe_prefix(prefix, "lm_head"))
        if config.tie_word_embeddings:
            self.lm_head.weight = self.model.embed_tokens.weight

        self.logits_processor = LogitsProcessor(self.unpadded_vocab_size,
                                                config.vocab_size,
                                                scale=1 /
                                                self.config.logits_scaling)

    def get_input_embeddings(self, input_ids: torch.Tensor) -> torch.Tensor:
        return self.model.get_input_embeddings(input_ids)

    def forward(
        self,
        input_ids: torch.Tensor,
        positions: torch.Tensor,
        intermediate_tensors: Optional[IntermediateTensors] = None,
        inputs_embeds: Optional[torch.Tensor] = None,
    ) -> torch.Tensor:
        hidden_states = self.model(input_ids, positions, intermediate_tensors,
                                   inputs_embeds)
        return hidden_states

    def compute_logits(
            self, hidden_states: torch.Tensor,
            sampling_metadata: SamplingMetadata) -> Optional[torch.Tensor]:
        logits = self.logits_processor(self.lm_head, hidden_states,
                                       sampling_metadata)
        return logits

    def make_empty_intermediate_tensors(
            self, batch_size: int, dtype: torch.dtype,
            device: torch.device) -> IntermediateTensors:
        return IntermediateTensors({
            "hidden_states":
            torch.zeros((batch_size, self.config.hidden_size),
                        dtype=dtype,
                        device=device),
            "residual":
            torch.zeros((batch_size, self.config.hidden_size),
                        dtype=dtype,
                        device=device),
        })

    def load_weights(self, weights: Iterable[tuple[str,
                                                   torch.Tensor]]) -> set[str]:
        loader = AutoWeightsLoader(
            self,
            skip_prefixes=(["lm_head."]
                           if self.config.tie_word_embeddings else None),
        )
        return loader.load_weights(weights)

config instance-attribute 

config = config

embedding_modules class-attribute instance-attribute 

embedding_modules = {
    "embed_tokens": "input_embeddings",
    "lm_head": "output_embeddings",
}

embedding_padding_modules class-attribute instance-attribute 

embedding_padding_modules = ['lm_head']

fall_back_to_pt_during_load class-attribute instance-attribute 

fall_back_to_pt_during_load = False

lm_head instance-attribute 

lm_head = ParallelLMHead(
    unpadded_vocab_size,
    hidden_size,
    org_num_embeddings=vocab_size,
    padding_size=DEFAULT_VOCAB_PADDING_SIZE
    if not lora_config
    else lora_vocab_padding_size,
    quant_config=quant_config,
    prefix=maybe_prefix(prefix, "lm_head"),
)

logits_processor instance-attribute 

logits_processor = LogitsProcessor(
    unpadded_vocab_size,
    vocab_size,
    scale=1 / logits_scaling,
)

lora_config instance-attribute 

lora_config = lora_config

model instance-attribute 

model = GraniteMoeSharedModel(
    vllm_config=vllm_config,
    prefix=maybe_prefix(prefix, "model"),
)

packed_modules_mapping class-attribute instance-attribute 

packed_modules_mapping = {
    "qkv_proj": ["q_proj", "k_proj", "v_proj"]
}

unpadded_vocab_size instance-attribute 

unpadded_vocab_size = vocab_size

__init__ 

__init__(*, vllm_config: VllmConfig, prefix: str = '')
Source code in vllm/model_executor/models/granitemoeshared.py 
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def __init__(self, *, vllm_config: VllmConfig, prefix: str = ""):
    super().__init__()
    config = vllm_config.model_config.hf_config
    quant_config = vllm_config.quant_config
    lora_config = vllm_config.lora_config

    self.config = config
    self.lora_config = lora_config

    self.model = GraniteMoeSharedModel(vllm_config=vllm_config,
                                       prefix=maybe_prefix(
                                           prefix, "model"))
    self.unpadded_vocab_size = config.vocab_size
    if lora_config:
        self.unpadded_vocab_size += lora_config.lora_extra_vocab_size
    self.lm_head = ParallelLMHead(
        self.unpadded_vocab_size,
        config.hidden_size,
        org_num_embeddings=config.vocab_size,
        padding_size=DEFAULT_VOCAB_PADDING_SIZE
        # We need bigger padding if using lora for kernel
        # compatibility
        if not lora_config else lora_config.lora_vocab_padding_size,
        quant_config=quant_config,
        prefix=maybe_prefix(prefix, "lm_head"))
    if config.tie_word_embeddings:
        self.lm_head.weight = self.model.embed_tokens.weight

    self.logits_processor = LogitsProcessor(self.unpadded_vocab_size,
                                            config.vocab_size,
                                            scale=1 /
                                            self.config.logits_scaling)

compute_logits 

compute_logits(
    hidden_states: Tensor,
    sampling_metadata: SamplingMetadata,
) -> Optional[Tensor]
Source code in vllm/model_executor/models/granitemoeshared.py 
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def compute_logits(
        self, hidden_states: torch.Tensor,
        sampling_metadata: SamplingMetadata) -> Optional[torch.Tensor]:
    logits = self.logits_processor(self.lm_head, hidden_states,
                                   sampling_metadata)
    return logits

forward 

forward(
    input_ids: Tensor,
    positions: Tensor,
    intermediate_tensors: Optional[
        IntermediateTensors
    ] = None,
    inputs_embeds: Optional[Tensor] = None,
) -> Tensor
Source code in vllm/model_executor/models/granitemoeshared.py 
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def forward(
    self,
    input_ids: torch.Tensor,
    positions: torch.Tensor,
    intermediate_tensors: Optional[IntermediateTensors] = None,
    inputs_embeds: Optional[torch.Tensor] = None,
) -> torch.Tensor:
    hidden_states = self.model(input_ids, positions, intermediate_tensors,
                               inputs_embeds)
    return hidden_states

get_input_embeddings 

get_input_embeddings(input_ids: Tensor) -> Tensor
Source code in vllm/model_executor/models/granitemoeshared.py 
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def get_input_embeddings(self, input_ids: torch.Tensor) -> torch.Tensor:
    return self.model.get_input_embeddings(input_ids)

load_weights 

load_weights(
    weights: Iterable[tuple[str, Tensor]],
) -> set[str]
Source code in vllm/model_executor/models/granitemoeshared.py 
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def load_weights(self, weights: Iterable[tuple[str,
                                               torch.Tensor]]) -> set[str]:
    loader = AutoWeightsLoader(
        self,
        skip_prefixes=(["lm_head."]
                       if self.config.tie_word_embeddings else None),
    )
    return loader.load_weights(weights)

make_empty_intermediate_tensors 

make_empty_intermediate_tensors(
    batch_size: int, dtype: dtype, device: device
) -> IntermediateTensors
Source code in vllm/model_executor/models/granitemoeshared.py 
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def make_empty_intermediate_tensors(
        self, batch_size: int, dtype: torch.dtype,
        device: torch.device) -> IntermediateTensors:
    return IntermediateTensors({
        "hidden_states":
        torch.zeros((batch_size, self.config.hidden_size),
                    dtype=dtype,
                    device=device),
        "residual":
        torch.zeros((batch_size, self.config.hidden_size),
                    dtype=dtype,
                    device=device),
    })

GraniteMoeSharedMLP

Bases: Module

Source code in vllm/model_executor/models/granitemoeshared.py 
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class GraniteMoeSharedMLP(nn.Module):

    def __init__(
        self,
        config: GraniteMoeSharedConfig,
        quant_config: Optional[QuantizationConfig] = None,
        prefix: str = "",
    ):
        super().__init__()

        self.input_size = config.hidden_size
        self.hidden_size = config.shared_intermediate_size
        self.input_linear = MergedColumnParallelLinear(
            input_size=self.input_size,
            output_sizes=[self.hidden_size] * 2,
            bias=False,
            quant_config=quant_config,
            prefix=f"{prefix}.input_linear")
        self.output_linear = RowParallelLinear(
            self.hidden_size,
            self.input_size,
            bias=False,
            quant_config=quant_config,
            prefix=f"{prefix}.output_linear")
        if config.hidden_act != "silu":
            raise ValueError(f"Unsupported activation: {config.hidden_act}. "
                             "Only silu is supported for now.")
        self.act_fn = SiluAndMul()

    def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
        hidden_states, _ = self.input_linear(hidden_states)
        hidden_states = self.act_fn(hidden_states)
        hidden_states, _ = self.output_linear(hidden_states)
        return hidden_states

act_fn instance-attribute 

act_fn = SiluAndMul()

hidden_size instance-attribute 

hidden_size = shared_intermediate_size

input_linear instance-attribute 

input_linear = MergedColumnParallelLinear(
    input_size=input_size,
    output_sizes=[hidden_size] * 2,
    bias=False,
    quant_config=quant_config,
    prefix=f"{prefix}.input_linear",
)

input_size instance-attribute 

input_size = hidden_size

output_linear instance-attribute 

output_linear = RowParallelLinear(
    hidden_size,
    input_size,
    bias=False,
    quant_config=quant_config,
    prefix=f"{prefix}.output_linear",
)

__init__ 

__init__(
    config: GraniteMoeSharedConfig,
    quant_config: Optional[QuantizationConfig] = None,
    prefix: str = "",
)
Source code in vllm/model_executor/models/granitemoeshared.py 
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def __init__(
    self,
    config: GraniteMoeSharedConfig,
    quant_config: Optional[QuantizationConfig] = None,
    prefix: str = "",
):
    super().__init__()

    self.input_size = config.hidden_size
    self.hidden_size = config.shared_intermediate_size
    self.input_linear = MergedColumnParallelLinear(
        input_size=self.input_size,
        output_sizes=[self.hidden_size] * 2,
        bias=False,
        quant_config=quant_config,
        prefix=f"{prefix}.input_linear")
    self.output_linear = RowParallelLinear(
        self.hidden_size,
        self.input_size,
        bias=False,
        quant_config=quant_config,
        prefix=f"{prefix}.output_linear")
    if config.hidden_act != "silu":
        raise ValueError(f"Unsupported activation: {config.hidden_act}. "
                         "Only silu is supported for now.")
    self.act_fn = SiluAndMul()

forward 

forward(hidden_states: Tensor) -> Tensor
Source code in vllm/model_executor/models/granitemoeshared.py 
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def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
    hidden_states, _ = self.input_linear(hidden_states)
    hidden_states = self.act_fn(hidden_states)
    hidden_states, _ = self.output_linear(hidden_states)
    return hidden_states

GraniteMoeSharedModel

Bases: Module

Source code in vllm/model_executor/models/granitemoeshared.py 
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@support_torch_compile
class GraniteMoeSharedModel(nn.Module):

    def __init__(self, *, vllm_config: VllmConfig, prefix: str = ""):
        super().__init__()

        config = vllm_config.model_config.hf_config
        cache_config = vllm_config.cache_config
        quant_config = vllm_config.quant_config
        lora_config = vllm_config.lora_config

        self.config = config
        self.quant_config = quant_config  # Required by MixtralModel
        self.padding_idx = config.pad_token_id
        lora_vocab = (lora_config.lora_extra_vocab_size *
                      (lora_config.max_loras or 1)) if lora_config else 0
        self.vocab_size = config.vocab_size + lora_vocab
        self.org_vocab_size = config.vocab_size

        self.embed_tokens = VocabParallelEmbedding(
            self.vocab_size,
            config.hidden_size,
            org_num_embeddings=config.vocab_size,
            quant_config=quant_config,
        )
        self.embedding_multiplier = config.embedding_multiplier

        self.start_layer, self.end_layer, self.layers = make_layers(
            config.num_hidden_layers,
            lambda prefix: GraniteMoeSharedDecoderLayer(
                config, cache_config, quant_config=quant_config, prefix=prefix
            ),
            prefix=f"{prefix}.layers")

        self.norm = RMSNorm(config.hidden_size, eps=config.rms_norm_eps)

    def get_input_embeddings(self, input_ids: torch.Tensor) -> torch.Tensor:
        return self.embed_tokens(input_ids)

    def forward(
        self,
        input_ids: torch.Tensor,
        positions: torch.Tensor,
        intermediate_tensors: Optional[IntermediateTensors],
        inputs_embeds: Optional[torch.Tensor] = None,
    ) -> torch.Tensor:
        if get_pp_group().is_first_rank:
            if inputs_embeds is not None:
                hidden_states = inputs_embeds
            else:
                hidden_states = self.get_input_embeddings(input_ids)
            hidden_states *= self.embedding_multiplier
            residual = None
        else:
            assert intermediate_tensors is not None
            hidden_states = intermediate_tensors["hidden_states"]
            residual = intermediate_tensors["residual"]
        for i in range(self.start_layer, self.end_layer):
            layer = self.layers[i]
            hidden_states = layer(positions, hidden_states)
        if not get_pp_group().is_last_rank:
            return IntermediateTensors({
                "hidden_states": hidden_states,
                "residual": residual
            })
        hidden_states = self.norm(hidden_states)
        return hidden_states

    def load_weights(self, weights: Iterable[tuple[str,
                                                   torch.Tensor]]) -> set[str]:
        new_weights = {}
        for n, p in weights:
            if n.endswith('.block_sparse_moe.input_linear.weight'):
                for e in range(p.size(0)):
                    w1_name = n.replace(
                        '.block_sparse_moe.input_linear.weight',
                        f".block_sparse_moe.experts.{e}.w1.weight")
                    w3_name = n.replace(
                        '.block_sparse_moe.input_linear.weight',
                        f".block_sparse_moe.experts.{e}.w3.weight")
                    w1_param, w3_param = p[e].chunk(2, dim=0)
                    assert w1_name not in new_weights
                    assert w3_name not in new_weights
                    new_weights[w1_name] = w1_param
                    new_weights[w3_name] = w3_param
            elif n.endswith('.block_sparse_moe.output_linear.weight'):
                for e in range(p.size(0)):
                    w2_name = n.replace(
                        '.block_sparse_moe.output_linear.weight',
                        f".block_sparse_moe.experts.{e}.w2.weight")
                    w2_param = p[e]
                    assert w2_name not in new_weights
                    new_weights[w2_name] = w2_param
            elif n.endswith('.block_sparse_moe.router.layer.weight'):
                gate_name = n.replace('.block_sparse_moe.router.layer.weight',
                                      ".block_sparse_moe.gate.weight")
                assert gate_name not in new_weights
                new_weights[gate_name] = p
            else:
                new_weights[n] = p
        return mixtral.MixtralModel.load_weights(self, new_weights.items())

config instance-attribute 

config = config

embed_tokens instance-attribute 

embed_tokens = VocabParallelEmbedding(
    vocab_size,
    hidden_size,
    org_num_embeddings=vocab_size,
    quant_config=quant_config,
)

embedding_multiplier instance-attribute 

embedding_multiplier = embedding_multiplier

norm instance-attribute 

norm = RMSNorm(hidden_size, eps=rms_norm_eps)

org_vocab_size instance-attribute 

org_vocab_size = vocab_size

padding_idx instance-attribute 

padding_idx = pad_token_id

quant_config instance-attribute 

quant_config = quant_config

vocab_size instance-attribute 

vocab_size = vocab_size + lora_vocab

__init__ 

__init__(*, vllm_config: VllmConfig, prefix: str = '')
Source code in vllm/model_executor/models/granitemoeshared.py 
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def __init__(self, *, vllm_config: VllmConfig, prefix: str = ""):
    super().__init__()

    config = vllm_config.model_config.hf_config
    cache_config = vllm_config.cache_config
    quant_config = vllm_config.quant_config
    lora_config = vllm_config.lora_config

    self.config = config
    self.quant_config = quant_config  # Required by MixtralModel
    self.padding_idx = config.pad_token_id
    lora_vocab = (lora_config.lora_extra_vocab_size *
                  (lora_config.max_loras or 1)) if lora_config else 0
    self.vocab_size = config.vocab_size + lora_vocab
    self.org_vocab_size = config.vocab_size

    self.embed_tokens = VocabParallelEmbedding(
        self.vocab_size,
        config.hidden_size,
        org_num_embeddings=config.vocab_size,
        quant_config=quant_config,
    )
    self.embedding_multiplier = config.embedding_multiplier

    self.start_layer, self.end_layer, self.layers = make_layers(
        config.num_hidden_layers,
        lambda prefix: GraniteMoeSharedDecoderLayer(
            config, cache_config, quant_config=quant_config, prefix=prefix
        ),
        prefix=f"{prefix}.layers")

    self.norm = RMSNorm(config.hidden_size, eps=config.rms_norm_eps)

forward 

forward(
    input_ids: Tensor,
    positions: Tensor,
    intermediate_tensors: Optional[IntermediateTensors],
    inputs_embeds: Optional[Tensor] = None,
) -> Tensor
Source code in vllm/model_executor/models/granitemoeshared.py 
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def forward(
    self,
    input_ids: torch.Tensor,
    positions: torch.Tensor,
    intermediate_tensors: Optional[IntermediateTensors],
    inputs_embeds: Optional[torch.Tensor] = None,
) -> torch.Tensor:
    if get_pp_group().is_first_rank:
        if inputs_embeds is not None:
            hidden_states = inputs_embeds
        else:
            hidden_states = self.get_input_embeddings(input_ids)
        hidden_states *= self.embedding_multiplier
        residual = None
    else:
        assert intermediate_tensors is not None
        hidden_states = intermediate_tensors["hidden_states"]
        residual = intermediate_tensors["residual"]
    for i in range(self.start_layer, self.end_layer):
        layer = self.layers[i]
        hidden_states = layer(positions, hidden_states)
    if not get_pp_group().is_last_rank:
        return IntermediateTensors({
            "hidden_states": hidden_states,
            "residual": residual
        })
    hidden_states = self.norm(hidden_states)
    return hidden_states

get_input_embeddings 

get_input_embeddings(input_ids: Tensor) -> Tensor
Source code in vllm/model_executor/models/granitemoeshared.py 
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def get_input_embeddings(self, input_ids: torch.Tensor) -> torch.Tensor:
    return self.embed_tokens(input_ids)

load_weights 

load_weights(
    weights: Iterable[tuple[str, Tensor]],
) -> set[str]
Source code in vllm/model_executor/models/granitemoeshared.py 
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def load_weights(self, weights: Iterable[tuple[str,
                                               torch.Tensor]]) -> set[str]:
    new_weights = {}
    for n, p in weights:
        if n.endswith('.block_sparse_moe.input_linear.weight'):
            for e in range(p.size(0)):
                w1_name = n.replace(
                    '.block_sparse_moe.input_linear.weight',
                    f".block_sparse_moe.experts.{e}.w1.weight")
                w3_name = n.replace(
                    '.block_sparse_moe.input_linear.weight',
                    f".block_sparse_moe.experts.{e}.w3.weight")
                w1_param, w3_param = p[e].chunk(2, dim=0)
                assert w1_name not in new_weights
                assert w3_name not in new_weights
                new_weights[w1_name] = w1_param
                new_weights[w3_name] = w3_param
        elif n.endswith('.block_sparse_moe.output_linear.weight'):
            for e in range(p.size(0)):
                w2_name = n.replace(
                    '.block_sparse_moe.output_linear.weight',
                    f".block_sparse_moe.experts.{e}.w2.weight")
                w2_param = p[e]
                assert w2_name not in new_weights
                new_weights[w2_name] = w2_param
        elif n.endswith('.block_sparse_moe.router.layer.weight'):
            gate_name = n.replace('.block_sparse_moe.router.layer.weight',
                                  ".block_sparse_moe.gate.weight")
            assert gate_name not in new_weights
            new_weights[gate_name] = p
        else:
            new_weights[n] = p
    return mixtral.MixtralModel.load_weights(self, new_weights.items())