Delete train.py
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train.py
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import torch
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import torch.nn as nn
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import torch.optim as optim
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from torch.utils.data import Dataset, DataLoader
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from transformers import BertTokenizer
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class SmallGemmaModel(nn.Module):
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def __init__(self, vocab_size, embedding_dim=256, num_heads=4, num_layers=4):
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super(SmallGemmaModel, self).__init__()
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self.token_embeddings = nn.Embedding(vocab_size, embedding_dim)
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self.transformer_layers = nn.ModuleList([
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nn.TransformerEncoderLayer(d_model=embedding_dim, nhead=num_heads) for _ in range(num_layers)
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])
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self.output_layer = nn.Linear(embedding_dim, vocab_size)
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def forward(self, input_ids):
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text_embeddings = self.token_embeddings(input_ids)
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for layer in self.transformer_layers:
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text_embeddings = layer(text_embeddings)
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return self.output_layer(text_embeddings)
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class KnowledgeDataset(Dataset):
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def __init__(self, file_path, tokenizer, max_length=128): # Reduced max_length
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self.tokenizer = tokenizer
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self.max_length = max_length
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with open(file_path, 'r') as f:
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self.data = f.read().splitlines()
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def __len__(self):
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return len(self.data)
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def __getitem__(self, idx):
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text = self.data[idx]
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encoding = self.tokenizer(text, return_tensors='pt', padding='max_length', truncation=True, max_length=self.max_length)
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input_ids = encoding['input_ids'].squeeze()
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return input_ids[:-1], input_ids[1:]
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def train_model(model, dataset, epochs=5, batch_size=8, learning_rate=1e-4): # Reduced batch size
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dataloader = DataLoader(dataset, batch_size=batch_size, shuffle=True)
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optimizer = optim.Adam(model.parameters(), lr=learning_rate)
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loss_fn = nn.CrossEntropyLoss()
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model.train()
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for epoch in range(epochs):
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for input_ids, target_ids in dataloader:
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optimizer.zero_grad()
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outputs = model(input_ids)
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loss = loss_fn(outputs.view(-1, outputs.size(-1)), target_ids.view(-1))
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loss.backward()
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optimizer.step()
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print(f"Epoch [{epoch+1}/{epochs}], Loss: {loss.item():.4f}")
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if __name__ == "__main__":
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vocab_size = 262208 // 4
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tokenizer = BertTokenizer.from_pretrained('bert-base-uncased')
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model = SmallGemmaModel(vocab_size=vocab_size)
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dataset = KnowledgeDataset('default.txt', tokenizer)
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train_model(model, dataset)
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