{"library":"nvidia-cudnn-cu12","title":"NVIDIA cuDNN Runtime Libraries for CUDA 12","description":"The `nvidia-cudnn-cu12` package provides the NVIDIA CUDA Deep Neural Network (cuDNN) runtime libraries, which are GPU-accelerated primitives essential for deep neural network operations such as convolutions, attention, and matrix multiplication. It acts as a critical low-level dependency, enabling deep learning frameworks like TensorFlow and PyTorch to efficiently leverage NVIDIA GPUs. This specific package targets CUDA 12.x environments. The current version is 9.20.0.48, with releases frequently updated to align with new CUDA Toolkit versions and cuDNN backend enhancements.","language":"python","status":"active","last_verified":"Tue May 12","install":{"commands":["pip install nvidia-cudnn-cu12","pip install nvidia-cudnn-cu12==9.20.0.48"],"cli":null},"imports":["import cudnn"],"auth":{"required":false,"env_vars":[]},"quickstart":{"code":"import tensorflow as tf\nimport os\n\n# Ensure TensorFlow doesn't pre-allocate all GPU memory\nos.environ['TF_FORCE_GPU_ALLOW_GROWTH'] = 'true'\n\n# Check if TensorFlow can detect and use GPUs\ngpus = tf.config.list_physical_devices('GPU')\n\nif gpus:\n    print(f\"TensorFlow detected the following GPUs: {gpus}\")\n    try:\n        # Limit GPU memory growth to avoid allocating all memory at once (alternative to env var)\n        for gpu in gpus:\n            tf.config.experimental.set_memory_growth(gpu, True)\n        print(\"GPU memory growth set to True.\")\n    except RuntimeError as e:\n        # Memory growth must be set before GPUs have been initialized\n        print(f\"Error setting memory growth: {e}\")\n    print(f\"TensorFlow is built with CUDA: {tf.test.is_built_with_cuda()}\")\n    # TensorFlow's built-in cuDNN version (indicates what TF was compiled with)\n    print(f\"TensorFlow's built-in cuDNN version: {tf.sysconfig.get_build_info().get('CUDNN_VERSION', 'N/A')}\")\n\n    # A small operation to trigger GPU usage if available\n    try:\n        with tf.device('/GPU:0'):\n            a = tf.constant([[1.0, 2.0], [3.0, 4.0]])\n            b = tf.constant([[1.0, 1.0], [1.0, 1.0]])\n            c = tf.matmul(a, b)\n            print(f\"Simple matrix multiplication on GPU: {c.numpy()}\")\n    except RuntimeError as e:\n        print(f\"Could not run on GPU: {e}. Running on CPU instead.\")\n        a = tf.constant([[1.0, 2.0], [3.0, 4.0]])\n        b = tf.constant([[1.0, 1.0], [1.0, 1.0]])\n        c = tf.matmul(a, b)\n        print(f\"Simple matrix multiplication on CPU: {c.numpy()}\")\nelse:\n    print(\"TensorFlow did not detect any GPUs. Please ensure CUDA and cuDNN are correctly installed and configured.\")","lang":"python","description":"This quickstart demonstrates how to verify that a deep learning framework like TensorFlow can detect and utilize your GPU, and implicitly, the underlying cuDNN runtime. Successful execution of this code confirms that `nvidia-cudnn-cu12` is likely correctly installed and accessible by TensorFlow. Note that the cuDNN version reported by TensorFlow is the version it was *built with*, not necessarily the exact version dynamically loaded, though they should be compatible.","tag":"stale","tag_description":"widespread failures or data too old to trust","last_tested":"2026-04-23","results":[{"runtime":"python:3.10-alpine","exit_code":1},{"runtime":"python:3.10-slim","exit_code":-1},{"runtime":"python:3.11-alpine","exit_code":1},{"runtime":"python:3.11-slim","exit_code":-1},{"runtime":"python:3.12-alpine","exit_code":1},{"runtime":"python:3.12-slim","exit_code":-1},{"runtime":"python:3.13-alpine","exit_code":1},{"runtime":"python:3.13-slim","exit_code":-1},{"runtime":"python:3.9-alpine","exit_code":1},{"runtime":"python:3.9-slim","exit_code":-1}]},"compatibility":{"tag":"stale","tag_description":"widespread failures or data too old to trust","last_tested":"2026-05-12","installed_version":null,"pypi_latest":null,"is_stale":null,"summary":{"python_range":"3.10–3.9","success_rate":0,"avg_install_s":null,"avg_import_s":null,"wheel_type":null},"results":[{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine (musl)","variant":"nvidia-cudnn-cu12","exit_code":1,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":null,"mem_mb":null,"disk_size":null},{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine (musl)","variant":"nvidia-cudnn-cu12==9.20.0.48","exit_code":1,"wheel_type":null,"failure_reason":null,"import_side_effects":null,"install_time_s":null,"import_time_s":null,"mem_mb":null,"disk_size":null},{"runtime":"python:3.10-slim","python_version":"3.10","os_libc":"slim 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