[inference] Refactor inference architecture (#5057)

* [inference] support only TP (#4998)

* support only tp

* enable tp

* add support for bloom (#5008)

* [refactor] refactor gptq and smoothquant llama (#5012)

* refactor gptq and smoothquant llama

* fix import error

* fix linear import torch-int

* fix smoothquant llama import error

* fix import accelerate error

* fix bug

* fix import smooth cuda

* fix smoothcuda

* [Inference Refactor] Merge chatglm2 with pp and tp (#5023)

merge chatglm with pp and tp

* [Refactor] remove useless inference code (#5022)

* remove useless code

* fix quant model

* fix test import bug

* mv original inference legacy

* fix chatglm2

* [Refactor] refactor policy search and quant type controlling in inference (#5035)

* [Refactor] refactor policy search and quant type controling in inference

* [inference] update readme (#5051)

* update readme

* update readme

* fix architecture

* fix table

* fix table

* [inference] udpate example (#5053)

* udpate example

* fix run.sh

* fix rebase bug

* fix some errors

* update readme

* add some features

* update interface

* update readme

* update benchmark

* add requirements-infer

---------

Co-authored-by: Bin Jia <45593998+FoolPlayer@users.noreply.github.com>
Co-authored-by: Zhongkai Zhao <kanezz620@gmail.com>

colossalai/legacy/inference/quant/smoothquant/models/__init__.py

@@ -0,0 +1,12 @@
+try:
+    import torch_int
+
+    HAS_TORCH_INT = True
+except ImportError:
+    HAS_TORCH_INT = False
+    raise ImportError(
+        "Not install torch_int. Please install torch_int from https://github.com/Guangxuan-Xiao/torch-int"
+    )
+
+if HAS_TORCH_INT:
+    from .llama import LLamaSmoothquantAttention, LlamaSmoothquantMLP