Resnet18 example acc and performance alligned nncf/x86 inductor

examples/quantization_aware_training/torch/resnet18/main.py

@@ -16,12 +16,14 @@
 
 import re
 import subprocess
+import time
 import warnings
 from copy import deepcopy
 from pathlib import Path
 from typing import List, Tuple
 
 import openvino as ov
+import openvino.torch  # noqa
 import torch
 import torch.ao.quantization.quantizer.x86_inductor_quantizer as xiq
 import torch.nn as nn
@@ -37,6 +39,7 @@
 from torch.ao.quantization.quantize_pt2e import convert_pt2e
 from torch.ao.quantization.quantize_pt2e import prepare_pt2e
 from torch.ao.quantization.quantizer.x86_inductor_quantizer import X86InductorQuantizer
+from torch.fx.passes.graph_drawer import FxGraphDrawer
 from torch.jit import TracerWarning
 
 import nncf
@@ -63,6 +66,18 @@
 DATASET_PATH = "~/.cache/nncf/datasets"
 
 
+def measure_time(model, example_inputs, num_iters):
+    with torch.no_grad():
+        model(*example_inputs)
+        total_time = 0
+        for i in range(0, num_iters):
+            start_time = time.time()
+            model(*example_inputs)
+            total_time += time.time() - start_time
+        average_time = (total_time / num_iters) * 1000
+    return average_time
+
+
 def download_dataset() -> Path:
     downloader = FastDownload(base=DATASET_PATH, archive="downloaded", data="extracted")
     return downloader.get(DATASET_URL)
@@ -264,7 +279,7 @@ def transform_fn(data_item):
 
     with torch.no_grad():
         example_inputs = (torch.ones((1, 3, IMAGE_SIZE, IMAGE_SIZE)),)
-        exported_model = capture_pre_autograd_graph(model, example_inputs)
+        exported_model = capture_pre_autograd_graph(model.eval(), example_inputs)
 
     NNCF_TORCH_FX = False
 
@@ -277,15 +292,50 @@ def transform_fn(data_item):
 
         from tqdm import tqdm
 
-        for data in tqdm(islice(quantization_dataset.get_inference_data(), 3)):
+        for data in tqdm(islice(quantization_dataset.get_inference_data(), 300)):
             prepared_model(data)
         quantized_model = convert_pt2e(prepared_model)
+
+        g = FxGraphDrawer(quantized_model, "acc_resnet18_int8_native")
+        g.get_dot_graph().write_svg("acc_resnet18_int8_native.svg")
     else:
         quantized_model = nncf.quantize(exported_model, quantization_dataset)
+        g = FxGraphDrawer(quantized_model, "acc_resnet18_int8_nncf")
+        g.get_dot_graph().write_svg("acc_resnet18_int8_nncf.svg")
 
-    quantized_model = torch.compile(quantized_model)
-    acc1_int8_init = validate(val_loader, quantized_model, device)
+    # quantized_model = torch.compile(quantized_model)
+    # acc1_int8_init = validate(val_loader, quantized_model, device)
+    acc1_int8_init = validate(val_loader, torch.compile(quantized_model), device)
     print(f"Accuracy@1 of initialized INT8 model: {acc1_int8_init:.3f}")
+
+    num_iters = 100
+
+    print("original model execution time: ", measure_time(model, example_inputs, num_iters))
+    native_optimized_model_fp32 = torch.compile(exported_model)
+    print(
+        "Torch Inductor FP32 model execution time: ",
+        measure_time(native_optimized_model_fp32, example_inputs, num_iters),
+    )
+    native_optimized_model_int8 = torch.compile(quantized_model)
+    print(
+        "Torch Inductor INT8 model execution time: ",
+        measure_time(native_optimized_model_int8, example_inputs, num_iters),
+    )
+
+    ov_optimized_model_fp32 = torch.compile(exported_model, backend="openvino")
+    print(
+        "Torch.compile OpenVINO FP32 model execution time: ",
+        measure_time(ov_optimized_model_fp32, example_inputs, num_iters),
+    )
+
+    ov_optimized_model_int8 = torch.compile(
+        quantized_model, backend="openvino", options={"model_caching": True, "cache_dir": "./model_cache"}
+    )
+    print(
+        "Torch.compile OpenVINO INT8 model execution time: ",
+        measure_time(ov_optimized_model_int8, example_inputs, num_iters),
+    )
+
     return
     ###############################################################################
     # Step 3: Fine tune quantized model

nncf/experimental/torch_fx/quantization/default_quantization.py

@@ -36,6 +36,7 @@
         operator_metatypes.PTLayerNormMetatype,
         operator_metatypes.PTModuleLayerNormMetatype,
         # operator_metatypes.PTAddMetatype,
+        operator_metatypes.PTReshapeMetatype,
         operator_metatypes.PTMulMetatype,
         operator_metatypes.PTDivMetatype,
         operator_metatypes.PTMatMulMetatype,
@@ -80,7 +81,7 @@
         operator_metatypes.PTTransposeMetatype,
         operator_metatypes.PTGatherMetatype,
         operator_metatypes.PTScatterMetatype,
-        operator_metatypes.PTReshapeMetatype,
+        # operator_metatypes.PTReshapeMetatype,
         operator_metatypes.PTSqueezeMetatype,
         operator_metatypes.PTSplitMetatype,
         operator_metatypes.PTExpandMetatype,

nncf/experimental/torch_fx/transformations.py

@@ -105,11 +105,13 @@ def insert_one_qdq(
         }
         quantize_op = torch.ops.quantized_decomposed.quantize_per_tensor.default
         dequantize_op = torch.ops.quantized_decomposed.dequantize_per_tensor.default
+
     # Quantized functions accepts only uint8 as an input
     if target_point.target_type != TargetType.OPERATION_WITH_WEIGHTS and qparams["_dtype_"] == torch.int8:
-        qparams["_zero_point_"] = 125
+        qparams["_zero_point_"] = qparams["_zero_point_"] - qparams["_quant_min_"]
+        quants_len = qparams["_quant_max_"] - qparams["_quant_min_"]
         qparams["_quant_min_"] = 0
-        qparams["_quant_max_"] = 255
+        qparams["_quant_max_"] = quants_len
         qparams["_dtype_"] = torch.uint8
     # TODO: map FakeQuantizePramaeters to qparams for quantize/dequantize
     # 2. replace activation_post_process node with quantize and dequantize

torch_compile_ex_release.py

@@ -44,7 +44,7 @@ def get_exported_model_from_nn_module(module, example_inputs):
         return capture_pre_autograd_graph(module, example_inputs)
 
 
-NNCF_IMPL = False
+NNCF_IMPL = True
 
 
 def get_qsetup(exported_model, example_inputs):
@@ -163,13 +163,13 @@ def main(model_name, num_iters):
 
     converted_model = quantize(copy.deepcopy(model), example_inputs)
 
-    # print("original model execution time: ", measure_time(model, example_inputs, num_iters))
+    print("original model execution time: ", measure_time(model, example_inputs, num_iters))
 
-    # native_optimized_model_fp32 = torch.compile(model)
-    # print(
-    #    "Torch Inductor FP32 model execution time: ",
-    #    measure_time(native_optimized_model_fp32, example_inputs, num_iters),
-    # )
+    native_optimized_model_fp32 = torch.compile(model)
+    print(
+        "Torch Inductor FP32 model execution time: ",
+        measure_time(native_optimized_model_fp32, example_inputs, num_iters),
+    )
 
     native_optimized_model_int8 = torch.compile(converted_model)
     print(