update

NOTICE

@@ -49,4 +49,232 @@ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+SOFTWARE.
+
+------------- LICENSE FOR stanford_alpaca code  --------------
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+
+   Copyright 2023 Rohan Taori, Ishaan Gulrajani, Tianyi Zhang, Yann Dubois, Xuechen Li
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
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+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+   
+------------- LICENSE FOR PanQiWei AutoGPTQ code  --------------
+
+MIT License
+
+Copyright (c) 2023 潘其威(William)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
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+copies or substantial portions of the Software.
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+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -16,11 +16,11 @@ inference: false
 <br>
 
 <p align="center">
-        🤗 <a href="https://huggingface.co/Qwen">Hugging Face</a>&nbsp&nbsp | &nbsp&nbsp🤖 <a href="https://modelscope.cn/organization/qwen">ModelScope</a>&nbsp&nbsp | &nbsp&nbsp 📑 <a href="https://arxiv.org/abs/2309.16609">Paper</a>&nbsp&nbsp ｜ &nbsp&nbsp🖥️ <a href="https://modelscope.cn/studios/qwen/Qwen-7B-Chat-Demo/summary">Demo</a>
+        🤗 <a href="https://huggingface.co/Qwen">Hugging Face</a>&nbsp&nbsp | &nbsp&nbsp🤖 <a href="https://modelscope.cn/organization/qwen">ModelScope</a>&nbsp&nbsp | &nbsp&nbsp 📑 <a href="https://arxiv.org/abs/2309.16609">Paper</a> &nbsp&nbsp ｜ &nbsp&nbsp🖥️ <a href="https://modelscope.cn/studios/qwen/Qwen-7B-Chat-Demo/summary">Demo</a>
 <br>
-<a href="https://github.com/QwenLM/Qwen/blob/main/assets/wechat.png">WeChat (微信)</a>&nbsp&nbsp ｜ &nbsp&nbsp DingTalk (钉钉) &nbsp&nbsp | &nbsp&nbsp<a href="https://discord.gg/z3GAxXZ9Ce">Discord</a>&nbsp&nbsp
+<a href="assets/wechat.png">WeChat (微信)</a>&nbsp&nbsp | &nbsp&nbsp<a href="https://discord.gg/z3GAxXZ9Ce">Discord</a>&nbsp&nbsp ｜  &nbsp&nbsp<a href="https://dashscope.aliyun.com">API</a> 
 </p>
-<br><br>
+<br>
 
 ## 介绍 (Introduction)
 
@@ -260,9 +260,9 @@ If you find our work helpful, feel free to give us a cite.
 
 ## 使用协议（License Agreement）
 
-我们的代码和模型权重对学术研究完全开放，并支持商用。请查看[LICENSE](https://github.com/QwenLM/Qwen/blob/main/LICENSE)了解具体的开源协议细节。如需商用，请填写[问卷](https://dashscope.console.aliyun.com/openModelApply/qianwen)申请。
+我们的代码和模型权重对学术研究完全开放，并支持商用。请查看[LICENSE](https://github.com/QwenLM/Qwen/blob/main/Tongyi%20Qianwen%20LICENSE%20AGREEMENT)了解具体的开源协议细节。如需商用，请填写[问卷](https://dashscope.console.aliyun.com/openModelApply/qianwen)申请。
 
-Our code and checkpoints are open to research purpose, and they are allowed for commercial purposes. Check [LICENSE](https://github.com/QwenLM/Qwen/blob/main/LICENSE) for more details about the license. If you have requirements for commercial use, please fill out the [form](https://dashscope.console.aliyun.com/openModelApply/qianwen) to apply.
+Our code and checkpoints are open to research purpose, and they are allowed for commercial purposes. Check [LICENSE](https://github.com/QwenLM/Qwen/blob/main/Tongyi%20Qianwen%20LICENSE%20AGREEMENT) for more details about the license. If you have requirements for commercial use, please fill out the [form](https://dashscope.console.aliyun.com/openModelApply/qianwen) to apply.
 <br>
 
 ## 联系我们（Contact Us）

config.json

@@ -16,7 +16,7 @@
   "initializer_range": 0.02,
   "kv_channels": 128,
   "layer_norm_epsilon": 1e-06,
-  "max_position_embeddings": 8192,
+  "max_position_embeddings": 32768,
   "model_type": "qwen",
   "no_bias": true,
   "num_attention_heads": 32,

modeling_qwen.py

@@ -13,7 +13,6 @@ import torch
 import torch.nn.functional as F
 import torch.utils.checkpoint
 import warnings
-from torch.cuda.amp import autocast
 
 from torch.nn import CrossEntropyLoss
 from transformers import PreTrainedTokenizer, GenerationConfig, StoppingCriteriaList
@@ -79,9 +78,10 @@ We detect you have activated flash attention support, but running model computat
 apply_rotary_emb_func = None
 rms_norm = None
 flash_attn_unpadded_func = None
+flash_attn_func = None
 
 def _import_flash_attn():
-    global apply_rotary_emb_func, rms_norm, flash_attn_unpadded_func
+    global apply_rotary_emb_func, rms_norm, flash_attn_unpadded_func, flash_attn_func
     try:
         from flash_attn.layers.rotary import apply_rotary_emb_func as __apply_rotary_emb_func
         apply_rotary_emb_func = __apply_rotary_emb_func
@@ -102,14 +102,18 @@ def _import_flash_attn():
 
     try:
         import flash_attn
+        _flash_attn_func = None
         if not hasattr(flash_attn, '__version__'):
             from flash_attn.flash_attn_interface import flash_attn_unpadded_func as __flash_attn_unpadded_func
         else:
             if int(flash_attn.__version__.split(".")[0]) >= 2:
+                if int(flash_attn.__version__.split(".")[1]) >= 1:
+                    from flash_attn.flash_attn_interface import flash_attn_func as _flash_attn_func
                 from flash_attn.flash_attn_interface import flash_attn_varlen_func as __flash_attn_unpadded_func
             else:
                 from flash_attn.flash_attn_interface import flash_attn_unpadded_func as __flash_attn_unpadded_func
         flash_attn_unpadded_func = __flash_attn_unpadded_func
+        flash_attn_func = _flash_attn_func
     except ImportError:
         logger.warn(
             "Warning: import flash_attn fail, please install FlashAttention to get higher efficiency "
@@ -182,6 +186,11 @@ class FlashSelfAttention(torch.nn.Module):
         seqlen_k = k.shape[1]
         seqlen_out = seqlen_q
 
+        if flash_attn_func is not None and batch_size == 1:
+            dropout_p = self.dropout_p if self.training else 0
+            output = flash_attn_func(q, k, v, dropout_p, softmax_scale=self.softmax_scale, causal=self.causal)
+            return output
+
         q, k, v = [rearrange(x, "b s ... -> (b s) ...") for x in [q, k, v]]
         cu_seqlens_q = torch.arange(
             0,
@@ -311,7 +320,7 @@ class QWenAttention(nn.Module):
                     warnings.warn("Failed to import KV cache kernels.")
                     self.cache_kernels = None
 
-    def _attn(self, query, key, value, registered_causal_mask, attention_mask=None, head_mask=None):
+    def _attn(self, query, key, value, causal_mask=None, attention_mask=None, head_mask=None):
         device = query.device
         if self.use_cache_quantization:
             qk, qk_scale, qk_zero = key
@@ -336,26 +345,13 @@ class QWenAttention(nn.Module):
                 size_temp = value[0].size(-1)
             else:
                 size_temp = value.size(-1)
-            attn_weights = attn_weights / torch.full(
-                [],
-                size_temp ** 0.5,
-                dtype=attn_weights.dtype,
-                device=attn_weights.device,
-            )
-        if self.use_cache_quantization:
-            query_length, key_length = query.size(-2), key[0].size(-2)
-        else:
-            query_length, key_length = query.size(-2), key.size(-2)
-        causal_mask = registered_causal_mask[
-            :, :, key_length - query_length : key_length, :key_length
-        ]
+            attn_weights = attn_weights / (size_temp ** 0.5)
+
         mask_value = torch.finfo(attn_weights.dtype).min
-        mask_value = torch.full([], mask_value, dtype=attn_weights.dtype).to(
-            attn_weights.device
-        )
-        attn_weights = torch.where(
-            causal_mask, attn_weights.to(attn_weights.dtype), mask_value
-        )
+        if causal_mask is not None:
+            attn_weights = torch.where(
+                causal_mask, attn_weights.to(attn_weights.dtype), mask_value
+            )
 
         if attention_mask is not None:
             attn_weights = attn_weights + attention_mask
@@ -482,7 +478,8 @@ class QWenAttention(nn.Module):
         else:
             present = None
 
-        if self.use_logn_attn and not self.training:
+        key_size = key[0].size(2) if self.use_cache_quantization else key.size(1)
+        if key_size > self.seq_length and self.use_logn_attn and not self.training:
             if self.use_cache_quantization:
                 seq_start = key[0].size(2) - query.size(1)
                 seq_end = key[0].size(2)
@@ -501,15 +498,19 @@ class QWenAttention(nn.Module):
             q, k, v = query, key, value
             attn_output = self.core_attention_flash(q, k, v, attention_mask=attention_mask)
         else:
-            registered_causal_mask = torch.tril(
-                torch.ones((key.size(1), key.size(1)), dtype=torch.bool, device=key.device)
-            ).view(1, 1, key.size(1), key.size(1))
+            key_size = key[0].size(2) if self.use_cache_quantization else key.size(1)
+            if query.size(1) == key_size:
+                causal_mask = torch.tril(
+                    torch.ones((key_size, key_size), dtype=torch.bool, device=query.device)
+                ).view(1, 1, key_size, key_size)
+            else:
+                causal_mask = None
             query = query.permute(0, 2, 1, 3)
             if not self.use_cache_quantization:
                 key = key.permute(0, 2, 1, 3)
                 value = value.permute(0, 2, 1, 3)
             if (
-                registered_causal_mask is None
+                causal_mask is None
                 and self.use_flash_attn
                 and flash_attn_unpadded_func is not None
                 and not self.is_fp32
@@ -518,13 +519,12 @@ class QWenAttention(nn.Module):
                 raise Exception(_ERROR_INPUT_CPU_QUERY_WITH_FLASH_ATTN_ACTIVATED)
 
             if not self.use_cache_quantization and SUPPORT_TORCH2:
-                causal_mask = registered_causal_mask[
-                    :, :, key.size(-2) - query.size(-2): key.size(-2), :key.size(-2)
-                ]
                 if attention_mask is not None:
                     attention_mask = attention_mask.expand(
                         -1, -1, causal_mask.size(2), -1
-                    ).masked_fill(~causal_mask, torch.finfo(query.dtype).min)
+                    )
+                    if causal_mask is not None:
+                        attention_mask.masked_fill(~causal_mask, torch.finfo(query.dtype).min)
                 else:
                     attention_mask = causal_mask
                 attn_output = F.scaled_dot_product_attention(
@@ -533,7 +533,7 @@ class QWenAttention(nn.Module):
                 attn_weight = None
             else:
                 attn_output, attn_weight = self._attn(
-                    query, key, value, registered_causal_mask, attention_mask, head_mask
+                    query, key, value, causal_mask, attention_mask, head_mask
                 )
         context_layer = self._merge_heads(
             attn_output, self.num_heads, self.head_dim
@@ -549,6 +549,8 @@ class QWenAttention(nn.Module):
                 and not self.is_fp32
             ):
                 raise ValueError("Cannot output attentions while using flash-attn")
+            elif not self.use_cache_quantization and SUPPORT_TORCH2:
+                raise ValueError("Cannot output attentions while using scaled_dot_product_attention")
             else:
                 outputs += (attn_weight,)
 
@@ -574,6 +576,7 @@ class QWenMLP(nn.Module):
         output = self.c_proj(intermediate_parallel)
         return output
 
+
 class QWenBlock(nn.Module):
     def __init__(self, config):
         super().__init__()
@@ -642,6 +645,7 @@ class QWenPreTrainedModel(PreTrainedModel):
     is_parallelizable = False
     supports_gradient_checkpointing = True
     _no_split_modules = ["QWenBlock"]
+    _skip_keys_device_placement = "past_key_values"
 
     def __init__(self, *inputs, **kwargs):
         super().__init__(*inputs, **kwargs)
@@ -933,11 +937,6 @@ class QWenLMHeadModel(QWenPreTrainedModel):
         assert (
             config.bf16 + config.fp16 + config.fp32 <= 1
         ), "Only one of \"bf16\", \"fp16\", \"fp32\" can be true"
-        logger.warn(
-            "Warning: please make sure that you are using the latest codes and checkpoints, "
-            "especially if you used Qwen-7B before 09.25.2023."
-            "请使用最新模型和代码，尤其如果你在9月25日前已经开始使用Qwen-7B，千万注意不要使用错误代码和模型。"
-        )
 
         autoset_precision = config.bf16 + config.fp16 + config.fp32 == 0
 
@@ -990,7 +989,6 @@ class QWenLMHeadModel(QWenPreTrainedModel):
             self.lm_head.half()
         self.post_init()
 
-
     def get_output_embeddings(self):
         return self.lm_head
 
@@ -1000,22 +998,13 @@ class QWenLMHeadModel(QWenPreTrainedModel):
     def prepare_inputs_for_generation(
         self, input_ids, past_key_values=None, inputs_embeds=None, **kwargs
     ):
-        token_type_ids = kwargs.get("token_type_ids", None)
         if past_key_values:
             input_ids = input_ids[:, -1].unsqueeze(-1)
-            if token_type_ids is not None:
-                token_type_ids = token_type_ids[:, -1].unsqueeze(-1)
 
-        attention_mask = kwargs.get("attention_mask", None)
-        position_ids = kwargs.get("position_ids", None)
-
-        if attention_mask is not None and position_ids is None:
-            position_ids = attention_mask.long().cumsum(-1) - 1
-            position_ids.masked_fill_(attention_mask == 0, 1)
-            if past_key_values:
-                position_ids = position_ids[:, -1].unsqueeze(-1)
+        if input_ids.size(0) == 1:
+            attention_mask = None
         else:
-            position_ids = None
+            attention_mask = kwargs.get("attention_mask", None)
 
         if inputs_embeds is not None and past_key_values is None:
             model_inputs = {"inputs_embeds": inputs_embeds}
@@ -1026,9 +1015,7 @@ class QWenLMHeadModel(QWenPreTrainedModel):
             {
                 "past_key_values": past_key_values,
                 "use_cache": kwargs.get("use_cache"),
-                "position_ids": position_ids,
                 "attention_mask": attention_mask,
-                "token_type_ids": token_type_ids,
             }
         )
         return model_inputs
@@ -1299,8 +1286,7 @@ class RotaryEmbedding(torch.nn.Module):
         self._ntk_alpha_cached = 1.0
         self._ntk_alpha_cached_list = [1.0]
 
-    def update_rotary_pos_emb_cache(self, max_seq_len, offset=0, ntk_alpha=1.0):
-        seqlen = max_seq_len + offset
+    def update_rotary_pos_emb_cache(self, seqlen, ntk_alpha=1.0):
         if seqlen > self._seq_len_cached or ntk_alpha != self._ntk_alpha_cached:
             base = self.base * ntk_alpha ** (self.dim / (self.dim - 2))
             self.inv_freq = 1.0 / (
@@ -1323,10 +1309,10 @@ class RotaryEmbedding(torch.nn.Module):
             cos, sin = emb.cos(), emb.sin()
             self._rotary_pos_emb_cache = [cos, sin]
 
-    def forward(self, max_seq_len, offset=0, ntk_alpha=1.0):
-        self.update_rotary_pos_emb_cache(max_seq_len, offset, ntk_alpha)
+    def forward(self, max_seq_len, ntk_alpha=1.0):
+        self.update_rotary_pos_emb_cache(max_seq_len, ntk_alpha)
         cos, sin = self._rotary_pos_emb_cache
-        return [cos[:, offset : offset + max_seq_len], sin[:, offset : offset + max_seq_len]]
+        return [cos[:, :max_seq_len], sin[:, :max_seq_len]]
 
 
 def _rotate_half(x):
@@ -1338,21 +1324,28 @@ def _rotate_half(x):
 
 
 def apply_rotary_pos_emb(t, freqs):
+    """ Apply rotary embedding to the first rotary_dim of the iput
+
+    Arguments:
+      t (tensor(batch_size, seq_len, n_head, head_dim)):
+        the input embedding/hidden states
+      freqs (list[tensor(1, seq_len, 1, rotary_dim), tensor(1, seq_len, 1, rotary_dim)]):
+        the cached cos/sin position embeddings 
+    """
+    rot_dim = freqs[0].shape[-1]
     cos, sin = freqs
+    t_float = t.float()
     if apply_rotary_emb_func is not None and t.is_cuda:
-        t_ = t.float()
-        cos = cos.squeeze(0).squeeze(1)[:, : cos.shape[-1] // 2]
-        sin = sin.squeeze(0).squeeze(1)[:, : sin.shape[-1] // 2]
-        output = apply_rotary_emb_func(t_, cos, sin).type_as(t)
-        return output
+        # apply_rotary_emb in flash_attn requires cos/sin to be of 
+        # shape (seqlen, rotary_dim / 2) and apply rotary embedding 
+        # to the first rotary_dim of the input
+        cos = cos.squeeze(0).squeeze(1)[:, : rot_dim // 2]
+        sin = sin.squeeze(0).squeeze(1)[:, : rot_dim // 2]
+        return apply_rotary_emb_func(t_float, cos, sin).type_as(t)
     else:
-        rot_dim = freqs[0].shape[-1]
-        cos, sin = freqs
-        t_, t_pass_ = t[..., :rot_dim], t[..., rot_dim:]
-        t_ = t_.float()
-        t_pass_ = t_pass_.float()
-        t_ = (t_ * cos) + (_rotate_half(t_) * sin)
-        return torch.cat((t_, t_pass_), dim=-1).type_as(t)
+        t_rot, t_pass = t_float[..., :rot_dim], t_float[..., rot_dim:]
+        t_rot = (t_rot * cos) + (_rotate_half(t_rot) * sin)
+        return torch.cat((t_rot, t_pass), dim=-1).type_as(t)
 
 
 class RMSNorm(torch.nn.Module):

tokenizer_config.json

@@ -1,5 +1,5 @@
 {
-  "model_max_length": 8192,
+  "model_max_length": 32768,
   "tokenizer_class": "QWenTokenizer",
   "auto_map": {
     "AutoTokenizer": [