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add full support for JAX in utils.py #17

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2 changes: 1 addition & 1 deletion gpt2.py
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Original file line number Diff line number Diff line change
Expand Up @@ -72,7 +72,7 @@ def transformer_block(x, mlp, attn, ln_1, ln_2, n_head): # [n_seq, n_embd] -> [

def gpt2(inputs, wte, wpe, blocks, ln_f, n_head): # [n_seq] -> [n_seq, n_vocab]
# token + positional embeddings
x = wte[inputs] + wpe[range(len(inputs))] # [n_seq] -> [n_seq, n_embd]
x = wte[np.array(inputs)] + wpe[np.array(range(len(inputs)))] # [n_seq] -> [n_seq, n_embd]

# forward pass through n_layer transformer blocks
for block in blocks:
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2 changes: 1 addition & 1 deletion gpt2_pico.py
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Original file line number Diff line number Diff line change
Expand Up @@ -35,7 +35,7 @@ def transformer_block(x, mlp, attn, ln_1, ln_2, n_head):
return x

def gpt2(inputs, wte, wpe, blocks, ln_f, n_head):
x = wte[inputs] + wpe[range(len(inputs))]
x = wte[np.array(inputs)] + wpe[np.array(range(len(inputs)))]
for block in blocks:
x = transformer_block(x, **block, n_head=n_head)
return layer_norm(x, **ln_f) @ wte.T
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