Log inductor config to dynamo_compile

Summary:
Scrubbed inductor config logging to dynamo_compile as json:str.

Scrub RE: `r'((^TYPE_CHECKING$)|(.*_progress$)|(.*TESTING.*)|(.*(rocm|halide).*)|(^trace\..*)|(^_))'`to save some space.

X-link: pytorch/pytorch#140790

Reviewed By: masnesral

Differential Revision: D65806399

Pulled By: ppanchalia

fbshipit-source-id: d8d82ed6a333dd09f9c8dda8be6011a510a16cc7

Author: ppanchalia

userbenchmark/dynamo/dynamobench/_dynamo/utils.py

@@ -14,6 +14,7 @@
 import importlib
 import inspect
 import itertools
+import json
 import linecache
 import logging
 import math
@@ -61,7 +62,6 @@
 
 import torch
 import torch._functorch.config
-import torch._inductor.config as inductor_config
 import torch.fx.experimental.symbolic_shapes
 import torch.utils._pytree as pytree
 from torch import fx
@@ -865,6 +865,7 @@ class CompilationMetrics:
     post_grad_pass_time_us: Optional[int] = None
     joint_graph_pass_time_us: Optional[int] = None
     log_format_version: int = LOG_FORMAT_VERSION
+    inductor_config: Optional[str] = None
 
 
 DEFAULT_COMPILATION_METRICS_LIMIT = 64
@@ -912,9 +913,48 @@ def add_compilation_metrics_to_chromium(c: Dict[str, Any]) -> None:
     )
 
 
+def _scrubbed_inductor_config_for_logging() -> Optional[str]:
+    """
+    Method to parse and scrub unintersting configs from inductor config
+    """
+
+    # TypeSafeSerializer for json.dumps()
+    # Skips complex types as values in config dict
+    class TypeSafeSerializer(json.JSONEncoder):
+        def default(self, o):
+            try:
+                return super().default(o)
+            except Exception:
+                return "Value is not JSON serializable"
+
+    configs_to_scrub_re = r"((^TYPE_CHECKING$)|(.*_progress$)|(.*TESTING.*)|(.*(rocm|halide).*)|(^trace\..*)|(^_))"
+    keys_to_scrub = set()
+    inductor_conf_str = None
+    inductor_config_copy = (
+        torch._inductor.config.get_config_copy() if torch._inductor.config else None
+    )
+    if inductor_config_copy is not None:
+        try:
+            for key, val in inductor_config_copy.items():
+                if not isinstance(key, str) or re.search(configs_to_scrub_re, key):
+                    keys_to_scrub.add(key)
+                # Convert set() to list for json.dumps()
+                if isinstance(val, set):
+                    inductor_config_copy[key] = list(val)
+            # Evict unwanted keys
+            for key in keys_to_scrub:
+                del inductor_config_copy[key]
+            # Stringify Inductor config
+            inductor_conf_str = json.dumps(
+                inductor_config_copy, cls=TypeSafeSerializer, skipkeys=True
+            )
+        except Exception:
+            # Don't crash because of runtime logging errors
+            inductor_conf_str = "Inductor Config is not JSON serializable"
+    return inductor_conf_str
+
+
 def record_compilation_metrics(metrics: Dict[str, Any]):
-    # TODO: Temporary; populate legacy fields from their replacements.
-    # Remove when we decide we can really deprecate them.
     def us_to_s(field):
         metric = metrics.get(field, None)
         return metric / 1e6 if metric is not None else None
@@ -923,7 +963,12 @@ def us_to_ms(field):
         metric = metrics.get(field, None)
         return metric // 1000 if metric is not None else None
 
-    legacy_metrics = {
+    common_metrics = {
+        "inductor_config": _scrubbed_inductor_config_for_logging(),
+        # -------- Any future common metircs go here --------
+        #
+        # Legacy metircs go here(TODO: Temporary; populate legacy fields from their replacements.)
+        # Remove when we decide we can really deprecate them.
         "entire_frame_compile_time_s": us_to_s("dynamo_cumulative_compile_time_us"),
         "backend_compile_time_s": us_to_s("aot_autograd_cumulative_compile_time_us"),
         "inductor_compile_time_s": us_to_s("inductor_cumulative_compile_time_us"),
@@ -937,7 +982,7 @@ def us_to_ms(field):
         ),
     }
 
-    compilation_metrics = CompilationMetrics(**{**metrics, **legacy_metrics})
+    compilation_metrics = CompilationMetrics(**{**metrics, **common_metrics})
     _compilation_metrics.append(compilation_metrics)
     if compilation_metrics.is_forward:
         name = "compilation_metrics"
@@ -2036,7 +2081,7 @@ def to_tensor(t):
                     and math.isnan(res_error)
                     # Some unit test for the accuracy minifier relies on
                     # returning false in this case.
-                    and not inductor_config.cpp.inject_relu_bug_TESTING_ONLY
+                    and not torch._inductor.config.cpp.inject_relu_bug_TESTING_ONLY
                 ):
                     passes_test = True
                 if not passes_test: