Getting Started with AI

TensorFlow

I have a laptop with an Nvidia RTX 4090 so I want to use that video card.

TensorFlow with GPU access is supported for WSL2

Install WSL (Windows Subsystem for Linux)

Run command prompt as administrator
wsl --install
For more information: https://learn.microsoft.com/en-us/windows/wsl/install

Install tensorflow

											python3 -m pip install tensorflow[and-cuda]
												python3 -c "import tensorflow as tf; print(tf.config.list_physical_devices('GPU'))"
												[PhysicalDevice(name='/physical_device:GPU:0', device_type='GPU')]

Create a simple script. y = 2x. So predicting 6 should get us something around 12.

											import tensorflow as tf
												import numpy as np
												from tensorflow.keras import Sequential
												from tensorflow.keras.layers import Dense
												
												layer0 = Dense(units=1, input_shape=[1])
												model = Sequential([layer0])
												model.compile(optimizer='sgd', loss='mean_squared_error')
												
												xs = np.array([1, 2, 3, 4, 5], dtype=float)
												ys = np.array([2, 4, 6, 8, 10], dtype=float)
												
												model.fit(xs, ys, epochs=1000)
												
												print(model.predict([6]))

Here's what I got: [[11.985531]]

But it used the wrong GPU

Screenshot of GPU usage for the built-in GPU instead of my RTX 4090

In the Nvidia control panel, Optimus was selected, which is a mode that automatically selects which GPU to use

What we want to do is select "NVIDIA GPU only" to force us to use the RTX 4090

Screenshot of nvidia control panel options

Now it's got the correct GPU

Screenshot of GPU usage, showing the correct GPU being used

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Getting Started with AI

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