Add PersistentProgramCache (sqlite + filestream backends)

cuda_core/cuda/core/utils/__init__.py

@@ -0,0 +1,43 @@
+# SPDX-FileCopyrightText: Copyright (c) 2024-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+from cuda.core._memoryview import (
+    StridedMemoryView,
+    args_viewable_as_strided_memory,
+)
+
+__all__ = [
+    "FileStreamProgramCache",
+    "ProgramCacheResource",
+    "SQLiteProgramCache",
+    "StridedMemoryView",
+    "args_viewable_as_strided_memory",
+    "make_program_cache_key",
+]
+
+# Lazily expose the program-cache APIs so ``from cuda.core.utils import
+# StridedMemoryView`` stays lightweight -- the cache backends pull in driver,
+# NVRTC, and module-load machinery that memoryview-only consumers do not need.
+_LAZY_CACHE_ATTRS = frozenset(
+    {
+        "FileStreamProgramCache",
+        "ProgramCacheResource",
+        "SQLiteProgramCache",
+        "make_program_cache_key",
+    }
+)
+
+
+def __getattr__(name):
+    if name in _LAZY_CACHE_ATTRS:
+        from cuda.core.utils import _program_cache
+
+        value = getattr(_program_cache, name)
+        globals()[name] = value  # cache for subsequent accesses
+        return value
+    raise AttributeError(f"module 'cuda.core.utils' has no attribute {name!r}")
+
+
+def __dir__():
+    return sorted(__all__)