Fix license header, add validation

python/cuda/bench/results/__init__.py

@@ -1,18 +1,5 @@
-# Copyright 2026 NVIDIA Corporation
-#
-#  Licensed under the Apache License, Version 2.0 with the LLVM exception
-#  (the "License"); you may not use this file except in compliance with
-#  the License.
-#
-#  You may obtain a copy of the License at
-#
-#      http://llvm.org/foundation/relicensing/LICENSE.txt
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  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.
+# SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 """Utilities for reading NVBench JSON benchmark result files."""
 

python/cuda/bench/results/__init__.pyi

@@ -1,18 +1,5 @@
-# Copyright 2026 NVIDIA Corporation
-#
-#  Licensed under the Apache License, Version 2.0 with the LLVM exception
-#  (the "License"); you may not use this file except in compliance with
-#  the License.
-#
-#  You may obtain a copy of the License at
-#
-#      http://llvm.org/foundation/relicensing/LICENSE.txt
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  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.
+# SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 from array import array
 from collections.abc import Callable, ItemsView, Iterator, KeysView, ValuesView

python/cuda/bench/results/_benchmark_result.py

@@ -1,18 +1,5 @@
-# Copyright 2026 NVIDIA Corporation
-#
-#  Licensed under the Apache License, Version 2.0 with the LLVM exception
-#  (the "License"); you may not use this file except in compliance with
-#  the License.
-#
-#  You may obtain a copy of the License at
-#
-#      http://llvm.org/foundation/relicensing/LICENSE.txt
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  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.
+# SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 from __future__ import annotations
 
@@ -52,18 +39,44 @@ def read_json(filename: str | os.PathLike[str]) -> dict:
     return file_root
 
 
+def extract_summary_data_value(summary: dict, name: str, expected_type: str) -> Any:
+    summary_tag = summary.get("tag", "<unknown>")
+    for value_data in summary.get("data", []):
+        if value_data.get("name") != name:
+            continue
+
+        value_type = value_data.get("type")
+        if value_type != expected_type:
+            raise ValueError(
+                f"summary {summary_tag!r} field {name!r} has type "
+                f"{value_type!r}; expected {expected_type!r}"
+            )
+        if "value" not in value_data:
+            raise ValueError(f"summary {summary_tag!r} field {name!r} is missing value")
+        return value_data["value"]
+
+    raise ValueError(f"summary {summary_tag!r} is missing field {name!r}")
+
+
 def extract_filename(summary: dict) -> str:
-    summary_data = summary["data"]
-    value_data = next(filter(lambda v: v["name"] == "filename", summary_data))
-    assert value_data["type"] == "string"
-    return value_data["value"]
+    value = extract_summary_data_value(summary, "filename", "string")
+    if not isinstance(value, str):
+        raise ValueError(
+            f"summary {summary.get('tag', '<unknown>')!r} field 'filename' "
+            "value must be a string"
+        )
+    return value
 
 
 def extract_size(summary: dict) -> int:
-    summary_data = summary["data"]
-    value_data = next(filter(lambda v: v["name"] == "size", summary_data))
-    assert value_data["type"] == "int64"
-    return int(value_data["value"])
+    value = extract_summary_data_value(summary, "size", "int64")
+    try:
+        return int(value)
+    except (TypeError, ValueError) as e:
+        raise ValueError(
+            f"summary {summary.get('tag', '<unknown>')!r} field 'size' "
+            f"value {value!r} is not an int64"
+        ) from e
 
 
 def parse_summary_value(value_data: dict) -> _SummaryValue:

python/examples/benchmark_result_autotune.py

@@ -1,18 +1,5 @@
-# Copyright 2026 NVIDIA Corporation
-#
-#  Licensed under the Apache License, Version 2.0 with the LLVM exception
-#  (the "License"); you may not use this file except in compliance with
-#  the License.
-#
-#  You may obtain a copy of the License at
-#
-#      http://llvm.org/foundation/relicensing/LICENSE.txt
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  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.
+# SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 from __future__ import annotations
 

python/scripts/nvbench_json_summary.py

@@ -1,20 +1,6 @@
 #!/usr/bin/env python
-#
-# Copyright 2026 NVIDIA Corporation
-#
-#  Licensed under the Apache License, Version 2.0 with the LLVM exception
-#  (the "License"); you may not use this file except in compliance with
-#  the License.
-#
-#  You may obtain a copy of the License at
-#
-#      http://llvm.org/foundation/relicensing/LICENSE.txt
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  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.
+# SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 from __future__ import annotations
 

python/test/test_benchmark_result.py

@@ -1,18 +1,5 @@
-# Copyright 2026 NVIDIA Corporation
-#
-#  Licensed under the Apache License, Version 2.0 with the LLVM exception
-#  (the "License"); you may not use this file except in compliance with
-#  the License.
-#
-#  You may obtain a copy of the License at
-#
-#      http://llvm.org/foundation/relicensing/LICENSE.txt
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  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.
+# SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 import json
 import struct
@@ -514,6 +501,44 @@ def test_benchmark_result_uses_empty_summaries_when_field_is_missing():
     assert state.bw is None
 
 
+@pytest.mark.parametrize(
+    "field_name,bad_type,expected_type",
+    [
+        ("filename", "int64", "string"),
+        ("size", "string", "int64"),
+    ],
+)
+def test_benchmark_result_validates_binary_summary_field_types(
+    field_name, bad_type, expected_type
+):
+    summary = sample_times_summary("result.json-bin/0.bin", 3)
+    for value_data in summary["data"]:
+        if value_data["name"] == field_name:
+            value_data["type"] = bad_type
+            if field_name == "filename":
+                value_data["value"] = "123"
+
+    with pytest.raises(
+        ValueError,
+        match=rf"field '{field_name}' has type '{bad_type}'; expected '{expected_type}'",
+    ):
+        results.SubBenchmarkResult(
+            {
+                "name": "copy",
+                "axes": [],
+                "states": [
+                    {
+                        "name": "Device=0",
+                        "axis_values": [],
+                        "summaries": [summary],
+                        "is_skipped": False,
+                    }
+                ],
+            },
+            "",
+        )
+
+
 def test_benchmark_result_uses_none_for_unavailable_samples(tmp_path):
     json_fn = tmp_path / "result.json"
     write_json(

python/test/test_nvbench_json_summary.py

@@ -1,18 +1,5 @@
-# Copyright 2026 NVIDIA Corporation
-#
-#  Licensed under the Apache License, Version 2.0 with the LLVM exception
-#  (the "License"); you may not use this file except in compliance with
-#  the License.
-#
-#  You may obtain a copy of the License at
-#
-#      http://llvm.org/foundation/relicensing/LICENSE.txt
-#
-#  Unless required by applicable law or agreed to in writing, software
-#  distributed under the License is distributed on an "AS IS" BASIS,
-#  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.
+# SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 import importlib.util
 import json