add support for phi3-mini (#433) (#435)

Co-authored-by: shihaobai <42648726+shihaobai@users.noreply.github.com>

Author: 2 people

README.md

@@ -49,6 +49,7 @@ LightLLM is a Python-based LLM (Large Language Model) inference and serving fram
 - [Mixtral](https://huggingface.co/mistralai/Mixtral-8x7B-Instruct-v0.1)
 - [Stablelm](https://huggingface.co/stabilityai/stablelm-2-1_6b)
 - [MiniCPM](https://huggingface.co/openbmb/MiniCPM-2B-sft-bf16)
+- [Phi-3](https://huggingface.co/collections/microsoft/phi-3-6626e15e9585a200d2d761e3)
 - [CohereForAI](https://huggingface.co/CohereForAI/c4ai-command-r-plus)
 
 > When you start Qwen-7b, you need to set the parameter '--eos_id 151643 --trust_remote_code'.
@@ -61,6 +62,8 @@ LightLLM is a Python-based LLM (Large Language Model) inference and serving fram
 
 > Stablelm needs to set the parameter '--trust_remote_code'.
 
+> Phi-3 only supports Mini and Small.
+
 ## Get started
 
 ### Requirements

lightllm/models/llama/layer_weights/pre_and_post_layer_weight.py

@@ -19,6 +19,9 @@ def load_hf_weights(self, weights):
         if "lm_head.weight" in weights:
             # print(weights['lm_head.weight'].shape)
             self.lm_head_weight_ = self._cuda(weights["lm_head.weight"][split_start:split_end, :])
+            tie_word_embeddings = self.network_config_.get("tie_word_embeddings", False)
+            if tie_word_embeddings:
+                self.lm_head_weight_ = self.wte_weight_
         if "model.norm.weight" in weights:
             self.final_norm_weight_ = self._cuda(weights["model.norm.weight"])
 

lightllm/models/llama/model.py

@@ -1,6 +1,7 @@
 import os
 import json
 import torch
+import math
 from lightllm.models.llama.layer_infer.pre_layer_infer import LlamaPreLayerInfer
 from lightllm.models.llama.layer_infer.post_layer_infer import LlamaPostLayerInfer
 from lightllm.models.llama.layer_infer.transformer_layer_infer import LlamaTransformerLayerInfer
@@ -17,6 +18,7 @@
 
 logger = init_logger(__name__)
 
+
 class LlamaTpPartModel(TpPartBaseModel):
     # weight class
     pre_and_post_weight_class = LlamaPreAndPostLayerWeight
@@ -34,14 +36,14 @@ class LlamaTpPartModel(TpPartBaseModel):
     def __init__(self, kvargs):
         super().__init__(kvargs)
         return
-    
+
     def _init_config(self):
         super()._init_config()
         # rename key
         # repair_config()
         self._reset_num_key_value_heads()
-        return 
-    
+        return
+
     def _reset_num_key_value_heads(self):
         if "num_key_value_heads" not in self.config:
             self.config["num_key_value_heads"] = self.config["num_attention_heads"]
@@ -52,13 +54,15 @@ def _verify_params(self):
         assert self.config["num_key_value_heads"] % self.world_size_ == 0
         assert self.config["num_attention_heads"] % self.world_size_ == 0
         return
-    
+
     def _init_mem_manager(self):
-        self.mem_manager = select_mem_manager_class(self.mode)(self.max_total_token_num, 
-                                                     dtype=self.data_type,
-                                                     head_num=self.config["num_key_value_heads"] // self.world_size_,
-                                                     head_dim=self.config["hidden_size"] // self.config["num_attention_heads"],
-                                                     layer_num=self.config["num_hidden_layers"])
+        self.mem_manager = select_mem_manager_class(self.mode)(
+            self.max_total_token_num,
+            dtype=self.data_type,
+            head_num=self.config["num_key_value_heads"] // self.world_size_,
+            head_dim=self.config["hidden_size"] // self.config["num_attention_heads"],
+            layer_num=self.config["num_hidden_layers"],
+        )
         return
 
     def _init_custom(self):
@@ -67,37 +71,51 @@ def _init_custom(self):
         """
         if self.config.get("use_rope_yarn", False):
             self._init_to_get_yarn_rotary()
-        elif self.config.get("use_dynamic_ntk", False) or (self.config.get("rope_scaling", None) is not None and self.config.get("rope_scaling", {}).get("type", "base") == "dynamic"):
+        elif self.config.get("use_dynamic_ntk", False) or (
+            self.config.get("rope_scaling", None) is not None
+            and self.config.get("rope_scaling", {}).get("type", "base") == "dynamic"
+        ):
             self._init_to_get_dynamic_ntk_rotary()
+        elif (
+            self.config.get("rope_scaling", None) is not None
+            and self.config.get("rope_scaling", {}).get("type", "base") == "su"
+        ):
+            self._init_to_su_rotary()
         else:
             self._init_to_get_rotary()
         return
 
     def _init_weights(self):
-        self.pre_post_weight = self.pre_and_post_weight_class(self.tp_rank_, self.world_size_, self.data_type, network_config=self.config, mode=self.mode)
+        self.pre_post_weight = self.pre_and_post_weight_class(
+            self.tp_rank_, self.world_size_, self.data_type, network_config=self.config, mode=self.mode
+        )
         self.trans_layers_weight = [
-            self.transformer_weight_class(i, self.tp_rank_, self.world_size_, self.data_type, network_config=self.config, mode=self.mode)
+            self.transformer_weight_class(
+                i, self.tp_rank_, self.world_size_, self.data_type, network_config=self.config, mode=self.mode
+            )
             for i in range(self.config["n_layer"])
         ]
-        if self.load_way == 'HF':
+        if self.load_way == "HF":
             load_hf_weights(
                 self.data_type,
                 weight_dir=self.weight_dir_,
                 pre_post_layer=self.pre_post_weight,
                 transformer_layer_list=self.trans_layers_weight,
-                weight_dict=self.weight_dict)
+                weight_dict=self.weight_dict,
+            )
         else:
             load_ds_weights(
                 self.data_type,
                 weight_dir=self.weight_dir_,
                 pre_post_layer=self.pre_post_weight,
                 transformer_layer_list=self.trans_layers_weight,
                 weight_dict=self.weight_dict,
-                prefix='model.layers.',
-                num_layer=self.config["n_layer"])
+                prefix="model.layers.",
+                num_layer=self.config["n_layer"],
+            )
         self.pre_post_weight.verify_load()
-        [weight.verify_load() for weight in self.trans_layers_weight]            
-        return 
+        [weight.verify_load() for weight in self.trans_layers_weight]
+        return
 
     def _init_to_get_rotary(self, default_base=10000):
         partial_head_dim = int(self.config.get("partial_rotary_factor", 1) * self.head_dim_)
@@ -112,8 +130,7 @@ def _init_to_get_rotary(self, default_base=10000):
             max_seq_len = self.config["max_sequence_length"]
         else:
             max_position_embeddings = self.config.get(
-                "max_position_embeddings",
-                2048 if base <= 10000.0 + 1e-5 else 16384
+                "max_position_embeddings", 2048 if base <= 10000.0 + 1e-5 else 16384
             )
             max_seq_len = max_position_embeddings * rope_scaling_factor
 
@@ -124,11 +141,13 @@ def _init_to_get_rotary(self, default_base=10000):
             if ntk_alpha > 1:
                 logger.info(f"Note: NTK enabled, alpha set to {ntk_alpha}")
             max_seq_len *= ntk_alpha
-            base = base * (ntk_alpha ** (partial_head_dim / (partial_head_dim-2))) #Base change formula
+            base = base * (ntk_alpha ** (partial_head_dim / (partial_head_dim - 2)))  # Base change formula
         except:
             pass
 
-        inv_freq = 1.0 / (base ** (torch.arange(0, partial_head_dim, 2, device="cpu", dtype=torch.float32) / partial_head_dim))
+        inv_freq = 1.0 / (
+            base ** (torch.arange(0, partial_head_dim, 2, device="cpu", dtype=torch.float32) / partial_head_dim)
+        )
         t = torch.arange(max_seq_len + 1024 * 128, device="cpu", dtype=torch.float32) / rope_scaling_factor
         freqs = torch.outer(t, inv_freq)
 
@@ -147,24 +166,37 @@ def _init_to_get_dynamic_ntk_rotary(self):
         max_seq_len = max(self.max_seq_length, max_position_embeddings)
         self._cos_cached = torch.zeros((max_seq_len, partial_head_dim // 2), dtype=self.data_type, device="cuda")
         self._sin_cached = torch.zeros((max_seq_len, partial_head_dim // 2), dtype=self.data_type, device="cuda")
-        
-        inv_freq = 1.0 / (base ** (torch.arange(0, partial_head_dim, 2, device="cpu", dtype=torch.float32) / partial_head_dim))
+
+        inv_freq = 1.0 / (
+            base ** (torch.arange(0, partial_head_dim, 2, device="cpu", dtype=torch.float32) / partial_head_dim)
+        )
         t = torch.arange(max_position_embeddings, device="cpu", dtype=torch.float32)
         freqs = torch.outer(t, inv_freq)
         self._cos_cached[0:max_position_embeddings, :] = torch.cos(freqs).to(self.data_type).cuda()
         self._sin_cached[0:max_position_embeddings, :] = torch.sin(freqs).to(self.data_type).cuda()
 
         for seq_loc_index in range(max_position_embeddings, max_seq_len, 1):
-            new_base = base * ((scaling_factor * (seq_loc_index + 1) / max_position_embeddings) -(scaling_factor - 1)) ** (partial_head_dim / (partial_head_dim - 2))
-            inv_freq = 1.0 / (new_base ** (torch.arange(0, partial_head_dim, 2, device="cpu", dtype=torch.float32) / partial_head_dim))
-            t = torch.tensor([seq_loc_index,], device="cpu", dtype=torch.float32)
+            new_base = base * (
+                (scaling_factor * (seq_loc_index + 1) / max_position_embeddings) - (scaling_factor - 1)
+            ) ** (partial_head_dim / (partial_head_dim - 2))
+            inv_freq = 1.0 / (
+                new_base ** (torch.arange(0, partial_head_dim, 2, device="cpu", dtype=torch.float32) / partial_head_dim)
+            )
+            t = torch.tensor(
+                [
+                    seq_loc_index,
+                ],
+                device="cpu",
+                dtype=torch.float32,
+            )
             freqs = torch.outer(t, inv_freq)
-            self._cos_cached[seq_loc_index:seq_loc_index + 1, :] = torch.cos(freqs).to(self.data_type).cuda()
-            self._sin_cached[seq_loc_index:seq_loc_index + 1, :] = torch.sin(freqs).to(self.data_type).cuda()
+            self._cos_cached[seq_loc_index : seq_loc_index + 1, :] = torch.cos(freqs).to(self.data_type).cuda()
+            self._sin_cached[seq_loc_index : seq_loc_index + 1, :] = torch.sin(freqs).to(self.data_type).cuda()
         return
 
     def _init_to_get_yarn_rotary(self):
         from .yarn_rotary_utils import find_correction_range, linear_ramp_mask, get_mscale
+
         dim = self.head_dim_
         max_position_embeddings = self.config.get("max_position_embeddings", 2048)
         base = self.config.get("rope_theta", 10000.0)
@@ -183,10 +215,12 @@ def _init_to_get_yarn_rotary(self):
         inv_freq_interpolation = 1.0 / (scale * pos_freqs)
 
         low, high = find_correction_range(beta_fast, beta_slow, dim, base, original_max_position_embeddings)
-        inv_freq_mask = (1 - linear_ramp_mask(low, high, dim // 2).float().cuda()) * extrapolation_factor # Get n-d rotational scaling corrected for extrapolation
+        inv_freq_mask = (
+            1 - linear_ramp_mask(low, high, dim // 2).float().cuda()
+        ) * extrapolation_factor  # Get n-d rotational scaling corrected for extrapolation
         inv_freq = inv_freq_interpolation * (1 - inv_freq_mask) + inv_freq_extrapolation * inv_freq_mask
 
-        mscale = float(get_mscale(scale) * attn_factor) # Get n-d magnitude scaling corrected for interpolation
+        mscale = float(get_mscale(scale) * attn_factor)  # Get n-d magnitude scaling corrected for interpolation
 
         # Build here to make `torch.jit.trace` work.
         max_seq_len_cached = max_position_embeddings
@@ -199,4 +233,50 @@ def _init_to_get_yarn_rotary(self):
 
         return
 
+    def _init_to_su_rotary(self):
+        rope_scaling = self.config["rope_scaling"]
+        short_factor = rope_scaling["short_factor"]
+        long_factor = rope_scaling["long_factor"]
+        original_max_position_embeddings = self.config["original_max_position_embeddings"]
+        max_position_embeddings = self.config.get("max_position_embeddings", original_max_position_embeddings)
+        base = self.config.get("rope_theta", 10000.0)
+        short_factor = torch.tensor(short_factor, dtype=torch.float32, device="cpu")
+        long_factor = torch.tensor(long_factor, dtype=torch.float32, device="cpu")
+
+        scale = max_position_embeddings / original_max_position_embeddings
+        if scale <= 1.0:
+            rope_scaling_factor = 1.0
+        else:
+            rope_scaling_factor = math.sqrt(1 + math.log(scale) / math.log(original_max_position_embeddings))
+
+        max_seq_len = max(self.max_seq_length, max_position_embeddings)
+        self._cos_cached = torch.zeros((max_seq_len, self.head_dim_ // 2), dtype=self.data_type, device="cuda")
+        self._sin_cached = torch.zeros((max_seq_len, self.head_dim_ // 2), dtype=self.data_type, device="cuda")
+
+        inv_freq = 1.0 / (
+            short_factor
+            * base ** (torch.arange(0, self.head_dim_, 2, device="cpu", dtype=torch.float32) / self.head_dim_)
+        )
+        t = torch.arange(original_max_position_embeddings, device="cpu", dtype=torch.float32)
+        freqs = torch.outer(t, inv_freq)
+        self._cos_cached[0:original_max_position_embeddings, :] = (
+            (torch.cos(freqs) * rope_scaling_factor).to(self.data_type).cuda()
+        )
+        self._sin_cached[0:original_max_position_embeddings, :] = (
+            (torch.sin(freqs) * rope_scaling_factor).to(self.data_type).cuda()
+        )
 
+        inv_freq = 1.0 / (
+            long_factor
+            * base ** (torch.arange(0, self.head_dim_, 2, device="cpu", dtype=torch.float32) / self.head_dim_)
+        )
+        t = torch.arange(original_max_position_embeddings, max_seq_len, device="cpu", dtype=torch.float32)
+        freqs = torch.outer(t, inv_freq)
+        self._cos_cached[original_max_position_embeddings:, :] = (
+            (torch.cos(freqs) * rope_scaling_factor).to(self.data_type).cuda()
+        )
+        self._sin_cached[original_max_position_embeddings:, :] = (
+            (torch.sin(freqs) * rope_scaling_factor).to(self.data_type).cuda()
+        )
+
+        return

lightllm/models/phi3/__init__.py

@@ -0,0 +1,90 @@
+import torch
+import torch.functional as F
+import torch.distributed as dist
+import numpy as np
+from functools import partial
+
+from lightllm.models.llama.layer_infer.transformer_layer_infer import LlamaTransformerLayerInfer
+from lightllm.models.phi3.triton_kernel.rotary_emb import rotary_emb_fwd
+from lightllm.models.phi3.triton_kernel.context_flashattention_nopad import (
+    context_attention_fwd,
+    context_attention_fwd_no_prompt_cache,
+)
+from lightllm.models.phi3.triton_kernel.destindex_copy_kv import destindex_copy_kv
+from lightllm.models.phi3.layer_weights.transformer_layer_weight import Phi3TransformerLayerWeight
+from lightllm.models.llama.infer_struct import LlamaInferStateInfo
+
+
+class Phi3TransformerLayerInfer(LlamaTransformerLayerInfer):
+    """ """
+
+    def __init__(self, layer_num, tp_rank, world_size, network_config, mode=[]):
+        super().__init__(layer_num, tp_rank, world_size, network_config, mode)
+        return
+
+    def _bind_attention(self):
+        self._context_attention_kernel = partial(Phi3TransformerLayerInfer._context_attention_kernel, self)
+        self._copy_kv_to_mem_cache = partial(Phi3TransformerLayerInfer._copy_kv_to_mem_cache_normal, self)
+        self._token_attention_kernel = partial(Phi3TransformerLayerInfer._token_decode_attention_flashdecoding, self)
+        return
+
+    def _get_qkv(self, input_emb, cache_kv, infer_state: LlamaInferStateInfo, layer_weight: Phi3TransformerLayerWeight):
+        q = torch.mm(input_emb.view(-1, self.embed_dim_), layer_weight.q_weight_)
+        torch.mm(
+            input_emb.view(-1, self.embed_dim_),
+            layer_weight.kv_weight_,
+            out=cache_kv.view(-1, (self.tp_k_head_num_ + self.tp_v_head_num_) * self.head_dim_),
+        )
+        rotary_emb_fwd(
+            q.view(-1, self.tp_q_head_num_, self.head_dim_),
+            cache_kv[:, 0 : self.tp_k_head_num_, :],
+            infer_state.position_cos,
+            infer_state.position_sin,
+        )
+        return q, cache_kv
+
+    def _copy_kv_to_mem_cache(self, buffer, mem_index, mem_manager):
+        destindex_copy_kv(buffer, mem_index, mem_manager.kv_buffer[self.layer_num_])
+        return
+
+    def _context_attention_kernel(
+        self, q, kv, infer_state: LlamaInferStateInfo, layer_weight, out=None
+    ) -> torch.Tensor:
+        o_tensor = torch.empty_like(q) if out is None else out
+        if infer_state.use_dynamic_prompt_cache:
+            kv = infer_state.mem_manager.kv_buffer[self.layer_num_]
+            context_attention_fwd(
+                q.view(-1, self.tp_q_head_num_, self.head_dim_),
+                kv[:, 0 : self.tp_k_head_num_, :],
+                kv[:, self.tp_k_head_num_ : self.tp_k_head_num_ + self.tp_v_head_num_, :],
+                o_tensor.view(-1, self.tp_q_head_num_, self.head_dim_),
+                infer_state.b_req_idx,
+                infer_state.b_start_loc,
+                infer_state.b_seq_len,
+                infer_state.b_ready_cache_len,
+                infer_state.max_len_in_batch,
+                infer_state.req_manager.req_to_token_indexs,
+            )
+        else:
+            context_attention_fwd_no_prompt_cache(
+                q.view(-1, self.tp_q_head_num_, self.head_dim_),
+                kv[:, 0 : self.tp_k_head_num_, :],
+                kv[:, self.tp_k_head_num_ : self.tp_k_head_num_ + self.tp_v_head_num_, :],
+                o_tensor.view(-1, self.tp_q_head_num_, self.head_dim_),
+                infer_state.b_start_loc,
+                infer_state.b_seq_len,
+                infer_state.max_len_in_batch,
+            )
+
+        return o_tensor
+
+    def _token_decode_attention_flashdecoding(self, q, infer_state: LlamaInferStateInfo, layer_weight, out=None):
+        from lightllm.models.phi3.triton_kernel.flash_decoding import token_decode_attention_flash_decoding
+
+        cache_k = infer_state.mem_manager.kv_buffer[self.layer_num_][:, 0 : self.tp_k_head_num_, :]
+        cache_v = infer_state.mem_manager.kv_buffer[self.layer_num_][
+            :, self.tp_k_head_num_ : self.tp_k_head_num_ + self.tp_v_head_num_, :
+        ]
+        return token_decode_attention_flash_decoding(
+            q, infer_state, self.tp_q_head_num_, self.head_dim_, cache_k, cache_v, out=out
+        )