eval script fixes (#414)

Additional script fixes

Summary:

int4wo had an issue with device swap after quantization api (need to set device before quantize)
int4wo-gptq had an issue with kv_cache model var not being set correctly (now set in GPTQ code)
eval in general had an issue with lm_eval 0.4.2 (updates to tokenizer and eval harness) 
   #404
[not eval] autoquant docs not showing up (added __all__ to autoquant), made autoquant low level apis priviate

Test Plan:

python eval.py -q int4wo-64 --compile
wikitext: {'word_perplexity,none': 12.842987954345306, 'word_perplexity_stderr,none': 'N/A', 'byte
_perplexity,none': 1.611855472207904, 'byte_perplexity_stderr,none': 'N/A', 'bits_per_byte,none': 0.68  
87223897240059, 'bits_per_byte_stderr,none': 'N/A', 'alias': 'wikitext'}

Reviewers:

Subscribers:

Tasks:

Tags:

Author: HDCharles

test/quantization/test_quant_api.py

@@ -238,7 +238,6 @@ def test_8da4w_quantizer(self):
     def test_8da4w_gptq_quantizer(self):
         from torchao.quantization.GPTQ import Int8DynActInt4WeightGPTQQuantizer
         from torchao._models._eval import InputRecorder, TransformerEvalWrapper
-        torchao._models.llama.model.use_index_put_for_kv_cache = True
         # should be similar to TorchCompileDynamicQuantizer
         precision = torch.bfloat16
         device = "cpu"
@@ -338,7 +337,6 @@ def test_8da4w_quantizer_eval(self):
     def test_gptq_quantizer_int4_weight_only(self):
         from torchao.quantization.GPTQ import Int4WeightOnlyGPTQQuantizer
         from torchao._models._eval import InputRecorder, TransformerEvalWrapper
-        torchao._models.llama.model.use_index_put_for_kv_cache = True
         precision = torch.bfloat16
         device = "cuda"
         checkpoint_path = Path("../checkpoints/meta-llama/Llama-2-7b-chat-hf/model.pth")

torchao/_models/_eval.py

@@ -52,8 +52,13 @@ def __init__(
             pad_token=0,
             device="cpu",
         ):
-            super().__init__()
-            self._tokenizer = tokenizer
+            try:
+                super().__init__()
+            except TypeError:
+                # lm_eval 0.4.2 removed the default init
+                super().__init__("gpt2", device="cpu")
+
+            self.tokenizer = tokenizer
             self._device = torch.device(device)
             self.vocab_size = vocab_size
             self._max_seq_length = calibration_seq_length
@@ -74,9 +79,9 @@ def __init__(
         @property
         def eot_token_id(self):
             try:
-                return self._tokenizer.eos_id()
+                return self.tokenizer.eos_id()
             except:
-                return self._tokenizer.eos_id
+                return self.tokenizer.eos_id
 
         @property
         def max_length(self):
@@ -96,16 +101,16 @@ def device(self):
 
         def tok_encode(self, string: str, **kwargs):
             # TODO: verify this for multi-batch as well
-            tokens = self._tokenizer.encode(string)
-            if hasattr(self._tokenizer, "bos_id"):
+            tokens = self.tokenizer.encode(string)
+            if hasattr(self.tokenizer, "bos_id"):
                 try:
-                    tokens = [self._tokenizer.bos_id()] + tokens
+                    tokens = [self.tokenizer.bos_id()] + tokens
                 except:
-                    tokens = [self._tokenizer.bos_id] + tokens
+                    tokens = [self.tokenizer.bos_id] + tokens
             return tokens
 
         def tok_decode(self, tokens):
-            decoded = self._tokenizer.decode(tokens)
+            decoded = self.tokenizer.decode(tokens)
             return decoded
 
         def add_input(self, args):
@@ -185,9 +190,9 @@ def __init__(
             input_prep_func=None,
             device="cuda"
         ):
-            super().__init__(None, None)
+            super().__init__(tokenizer, None)
             self._model = model
-            self._tokenizer = tokenizer
+            # self.tokenizer = tokenizer
             self._device = torch.device(device)
             self._max_seq_length = max_seq_length
 

torchao/_models/llama/eval.py

@@ -13,15 +13,15 @@
 
 )
 from torchao.quantization.quant_api import (
-    quantize, int4wo, int8wo, int8da_int8w, unwrap_tensor_subclass
+    quantize, int4_weight_only, int8_weight_only, int8_dynamic_activation_int8_weight, unwrap_tensor_subclass
 
 )
 from torchao._models._eval import TransformerEvalWrapper, InputRecorder
 
 from tokenizer import get_tokenizer
 import time
 from torchao.quantization.GPTQ import Int4WeightOnlyGPTQQuantizer
-from model import prepare_inputs_for_model
+from torchao._models.llama.model import prepare_inputs_for_model
 
 torch._inductor.config.fx_graph_cache = True
 torch._inductor.config.force_fuse_int_mm_with_mul = True
@@ -60,17 +60,18 @@ def run_evaluation(
 
     if quantization:
         if "int8wo" in quantization:
-            quantize(model, int8wo())
+            quantize(model, int8_weight_only())
         if "int8dq" in quantization:
-            quantize(model, int8da_int8w())
+            quantize(model, int8_dynamic_activation_int8_weight())
         if "int4wo" in quantization and not "gptq" in quantization:
             groupsize=int(quantization.split("-")[-1])
             assert groupsize in [32,64,128,256], f"int4wo groupsize needs to be one of [32,64,128,256] but got {groupsize}"
-            quantize(model, int4wo(groupsize=groupsize))
+            quantize(model.to(device), int4_weight_only(group_size=groupsize))
         if "int4wo" in quantization and "gptq" in quantization:
             groupsize=int(quantization.split("-")[-2])
             assert groupsize in [32,64,128,256], f"int4wo groupsize needs to be one of [32,64,128,256] but got {groupsize}"
             assert precision==torch.bfloat16, f"{quantization} requires precision or bfloat16 but got {precision}"
+            assert "cuda" in device, "int4 gptq quantization only works on cuda"
             inputs = InputRecorder(
                 tokenizer,
                 calibration_seq_length,
@@ -83,7 +84,7 @@ def run_evaluation(
                 calibration_limit,
             ).get_inputs()
 
-            quantizer = Int4WeightOnlyGPTQQuantizer(groupsize=groupsize)
+            quantizer = Int4WeightOnlyGPTQQuantizer(groupsize=groupsize, device=device)
             model.setup_caches(max_batch_size=1, max_seq_length=calibration_seq_length)
             model = quantizer.quantize(model, inputs).to(device)
         else:

torchao/_models/llama/generate.py

@@ -35,8 +35,8 @@ def device_sync(device):
 wd = Path(__file__).parent.parent.resolve()
 sys.path.append(str(wd))
 
-from model import Transformer, prepare_inputs_for_model
-from tokenizer import get_tokenizer
+from torchao._models.llama.model import Transformer, prepare_inputs_for_model
+from torchao._models.llama.tokenizer import get_tokenizer
 
 def multinomial_sample_one_no_sync(probs_sort): # Does multinomial sampling without a cuda synchronization
     q = torch.empty_like(probs_sort).exponential_(1)
@@ -189,21 +189,21 @@ def main(
     if quantization:
         from torchao.quantization.quant_api import (
             quantize,
-            int8wo,
-            int8da_int8w,
-            int4wo,
+            int8_weight_only,
+            int8_dynamic_activation_int8_weight,
+            int4_weight_only,
             autoquant,
             unwrap_tensor_subclass
     )
 
         if "int8wo" in quantization:
-            quantize(model, int8wo())
+            quantize(model, int8_weight_only())
         if "int8dq" in quantization:
-            quantize(model, int8da_int8w())
+            quantize(model, int8_dynamic_activation_int8_weight())
         if "int4wo" in quantization:
             groupsize=int(quantization.split("-")[-1])
             assert groupsize in [32,64,128,256], f"int4wo groupsize needs to be one of [32,64,128,256] but got {groupsize}"
-            quantize(model, int4wo(groupsize=groupsize))
+            quantize(model, int4_weight_only(groupsize=groupsize))
         if "autoquant" == quantization:
             model = autoquant(model, manual=True)
 

torchao/_models/llama/tokenizer.py

@@ -30,6 +30,8 @@ class SentencePieceWrapper(TokenizerInterface):
     def __init__(self, model_path):
         super().__init__(model_path)
         self.processor = spm.SentencePieceProcessor(str(model_path))
+        self.bos_token_id = self.bos_id()
+        self.eos_token_id = self.eos_id()
 
     def encode(self, text):
         return self.processor.EncodeAsIds(text)
@@ -86,6 +88,8 @@ def __init__(self, model_path):
         # BOS / EOS token IDs
         self._bos_id: int = self.special_tokens["<|begin_of_text|>"]
         self._eos_id: int = self.special_tokens["<|end_of_text|>"]
+        self.bos_token_id = self.bos_id()
+        self.eos_token_id = self.eos_id()
 
     def encode(self, text):
         return self.model.encode(text)

torchao/quantization/GPTQ.py

@@ -81,6 +81,9 @@ def __init__(
 
         # trace model for one input
         one_input = [multi.values[0].cpu() for multi in inputs]  # pyre-ignore[16]
+        # needed for GPTQ on the torchao llama model
+        import torchao
+        torchao._models.llama.model.use_index_put_for_kv_cache = True
         exported_model = torch._dynamo.export(
             model.cpu(), aten_graph=True, pre_dispatch=True, tracing_mode="fake"
         )(*one_input)
@@ -95,7 +98,7 @@ def __init__(
         self.groupsize = groupsize
         self.inputs = inputs
         self.gptq_done = False
-        self.debug = False
+        self.debug = True
 
     def configure_quantization_mode(
         self,
@@ -672,9 +675,9 @@ def quantize(
 class Int4WeightOnlyGPTQQuantizer(GPTQQuantizer):
         def __init__(
             self,
-            blocksize,
-            percdamp,
-            groupsize,
+            blocksize=128,
+            percdamp=0.01,
+            groupsize=64,
             inner_k_tiles=8,
             padding_allowed=True,
             device: torch.device = torch.device("cuda"),

torchao/quantization/__init__.py

@@ -17,8 +17,6 @@
     "swap_conv2d_1x1_to_linear"
     "safe_int_mm",
     "autoquant",
-    "change_linears_to_autoquantizable",
-    "change_autoquantizable_to_quantized",
     "get_scale",
     "SmoothFakeDynQuantMixin",
     "SmoothFakeDynamicallyQuantizedLinear",

torchao/quantization/autoquant.py

@@ -17,6 +17,12 @@
 except:
     from torch._inductor.runtime.runtime_utils import do_bench
 
+__all__ = [
+    "AutoQuantizableLinearWeight",
+    "autoquant",
+]
+
+
 aten = torch.ops.aten
 
 AUTOQUANT_CACHE = {}
@@ -382,11 +388,11 @@ def from_float(cls, weight):
     AQInt8DynamicallyQuantizedLinearWeight,
 ]
 
-def change_linears_to_autoquantizable(model, **kwargs):
+def _change_linears_to_autoquantizable(model, **kwargs):
     """
     Converts all linear weight tensors to the
     AutoQuantizableLinearWeight tensor subclass. Expectation is that this is followed
-    by running the model and then calling change_autoquantizable_to_quantized
+    by running the model and then calling _change_autoquantizable_to_quantized
     """
     from torchao.quantization.quant_api import _is_linear
     filter_fn = kwargs.pop("filter_fn", _is_linear)
@@ -401,7 +407,7 @@ def change_linears_to_autoquantizable(model, **kwargs):
         filter_fn if filter_fn is not None else _is_linear,
     )
 
-def change_autoquantizable_to_quantized(model, **kwargs):
+def _change_autoquantizable_to_quantized(model, **kwargs):
     """
     Converts AutoQuantizableLinearWeight tensor subclasses
     to various quantized/non-quantized tensor subclasses depending
@@ -490,7 +496,7 @@ def autoquant(
 
     # perform initial swap from linear weights
     # to AutoQuantizableLinearWeight
-    change_linears_to_autoquantizable(
+    _change_linears_to_autoquantizable(
         model,
         filter_fn=filter_fn,
         qtensor_class_list=qtensor_class_list,
@@ -531,7 +537,7 @@ def autoquant_prehook(module, args, kwargs):
     # note the torch.compile wrapper (eval_frame) moves the assignment of any assigned
     # attributes to the inner model that didn't exist before, so we have to call delattr on the inner model
     def finalize_autoquant():
-        change_autoquantizable_to_quantized(
+        _change_autoquantizable_to_quantized(
             real_model,
             **aq_kwargs,
         )