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{
"cells": [
{
"cell_type": "code",
"execution_count": 2,
"id": "780b8bd2-ddee-4f38-8507-48643ff1fb3d",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"2.13.0\n"
]
}
],
"source": [
"import tensorflow\n",
"print(tensorflow.__version__)"
]
},
{
"cell_type": "code",
"execution_count": 3,
"id": "edea97c0-8733-45a0-838e-07bdde3e09c6",
"metadata": {},
"outputs": [],
"source": [
"mnist = tensorflow.keras.datasets.mnist\n",
"\n",
"(x_train, y_train), (x_test, y_test) = mnist.load_data()\n",
"x_train, x_test = x_train / 255.0, x_test / 255.0"
]
},
{
"cell_type": "code",
"execution_count": 4,
"id": "e4f05156-c521-4706-84c5-c759de4243e3",
"metadata": {},
"outputs": [
{
"name": "stderr",
"output_type": "stream",
"text": [
"2024-04-28 13:30:52.410401: I tensorflow/core/common_runtime/process_util.cc:146] Creating new thread pool with default inter op setting: 2. Tune using inter_op_parallelism_threads for best performance.\n"
]
}
],
"source": [
"model = tensorflow.keras.models.Sequential([\n",
" tensorflow.keras.layers.Flatten(input_shape=(28, 28)),\n",
" tensorflow.keras.layers.Dense(128, activation='relu'),\n",
" tensorflow.keras.layers.Dropout(0.2),\n",
" tensorflow.keras.layers.Dense(10)\n",
"])"
]
},
{
"cell_type": "code",
"execution_count": 5,
"id": "0af8cfcd-1025-45cc-83bd-1af251495622",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"array([[ 0.51568913, -0.22694974, 0.7567456 , -0.8453866 , 0.40375337,\n",
" 0.06754087, 1.095877 , -0.82267034, 0.59129924, 0.15186527]],\n",
" dtype=float32)"
]
},
"execution_count": 5,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"predictions = model(x_train[:1]).numpy()\n",
"predictions"
]
},
{
"cell_type": "code",
"execution_count": 6,
"id": "afab32b7-ef89-4f5b-8641-4d15f31137d3",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"2.571601"
]
},
"execution_count": 6,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"loss_fn = tensorflow.keras.losses.SparseCategoricalCrossentropy(from_logits=True)\n",
"loss_fn(y_train[:1], predictions).numpy()"
]
},
{
"cell_type": "code",
"execution_count": 7,
"id": "e9c2c641-62ed-483b-a60a-73b7bef90052",
"metadata": {},
"outputs": [],
"source": [
"model.compile(\n",
" optimizer='adam',\n",
" loss=loss_fn,\n",
" metrics=['accuracy']\n",
")"
]
},
{
"cell_type": "code",
"execution_count": 8,
"id": "6cc7246e-e875-4d84-9447-2f4349e0d1a3",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Start time 2024-04-28 13:30:52.532594\n",
"Epoch 1/5\n",
"1875/1875 [==============================] - 10s 5ms/step - loss: 0.2980 - accuracy: 0.9135\n",
"Epoch 2/5\n",
"1875/1875 [==============================] - 33s 17ms/step - loss: 0.1455 - accuracy: 0.9574\n",
"Epoch 3/5\n",
"1875/1875 [==============================] - 19s 10ms/step - loss: 0.1104 - accuracy: 0.9668\n",
"Epoch 4/5\n",
"1875/1875 [==============================] - 17s 9ms/step - loss: 0.0874 - accuracy: 0.9724\n",
"Epoch 5/5\n",
"1875/1875 [==============================] - 17s 9ms/step - loss: 0.0774 - accuracy: 0.9759\n",
"End time 2024-04-28 13:33:15.639799\n",
"0:02:23.107205\n"
]
}
],
"source": [
"import datetime\n",
"\n",
"start = datetime.datetime.now()\n",
"print(f\"Start time {start}\")\n",
"\n",
"model.fit(x_train, y_train, epochs=5)\n",
"\n",
"end = datetime.datetime.now()\n",
"print(f\"End time {end}\")\n",
"print(end - start)"
]
},
{
"cell_type": "code",
"execution_count": 1,
"id": "1db98023-3052-4f26-8af0-4725eae0fad6",
"metadata": {},
"outputs": [
{
"name": "stderr",
"output_type": "stream",
"text": [
"2024-04-28 13:40:14.388937: I tensorflow/core/platform/cpu_feature_guard.cc:182] This TensorFlow binary is optimized to use available CPU instructions in performance-critical operations.\n",
"To enable the following instructions: AVX2 AVX512F FMA, in other operations, rebuild TensorFlow with the appropriate compiler flags.\n",
"2024-04-28 13:41:07.064024: I tensorflow/core/common_runtime/process_util.cc:146] Creating new thread pool with default inter op setting: 2. Tune using inter_op_parallelism_threads for best performance.\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Start time 2024-04-28 13:41:08.409854\n",
"End time 2024-04-28 13:42:22.532379\n",
"0:01:14.122525\n"
]
}
],
"source": [
"import tensorflow\n",
"import datetime\n",
"\n",
"mnist = tensorflow.keras.datasets.mnist\n",
"(x_train, y_train), (x_test, y_test) = mnist.load_data()\n",
"x_train, x_test = x_train / 255.0, x_test / 255.0\n",
"\n",
"model = tensorflow.keras.models.Sequential([\n",
" tensorflow.keras.layers.Flatten(input_shape=(28, 28)),\n",
" tensorflow.keras.layers.Dense(128, activation='relu'),\n",
" tensorflow.keras.layers.Dropout(0.2),\n",
" tensorflow.keras.layers.Dense(10)\n",
"])\n",
"\n",
"loss_fn = tensorflow.keras.losses.SparseCategoricalCrossentropy(from_logits=True)\n",
"\n",
"optimizer = tensorflow.keras.optimizers.Adam()\n",
"\n",
"@tensorflow.function\n",
"def train_step(x, y):\n",
" with tensorflow.GradientTape() as tape:\n",
" predictions = model(x, training=True)\n",
" loss = loss_fn(y, predictions)\n",
" gradients = tape.gradient(loss, model.trainable_variables)\n",
" optimizer.apply_gradients(zip(gradients, model.trainable_variables))\n",
"\n",
"batch_size = 32\n",
"dataset = tensorflow.data.Dataset.from_tensor_slices((x_train, y_train)).batch(batch_size)\n",
"\n",
"start = datetime.datetime.now()\n",
"print(f\"Start time {start}\")\n",
"\n",
"epochs = 5\n",
"for epoch in range(epochs):\n",
" for x_batch, y_batch in dataset:\n",
" train_step(x_batch, y_batch)\n",
"\n",
"end = datetime.datetime.now()\n",
"print(f\"End time {end}\")\n",
"print(end - start)"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "62988706-fd36-4cf5-b80a-b4adf3ee3653",
"metadata": {},
"outputs": [],
"source": []
},
{
"cell_type": "code",
"execution_count": null,
"id": "fca4de9a-798c-46e9-bf70-b51cb7c79ab8",
"metadata": {},
"outputs": [],
"source": []
}
],
"metadata": {
"kernelspec": {
"display_name": "Tensorflow (Intel® oneAPI 2023.2)",
"language": "python",
"name": "c009-intel_distribution_of_python_3_oneapi-beta05-tf"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.16"
}
},
"nbformat": 4,
"nbformat_minor": 5
}
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