From: François Fleuret Date: Mon, 17 Jun 2024 13:41:51 +0000 (+0200) Subject: Update. X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=commitdiff_plain;h=b6228999b93968b7362b70b1b570e622a954b805;p=culture.git Update. --- diff --git a/turing.py b/turing.py new file mode 100755 index 0000000..66c7f03 --- /dev/null +++ b/turing.py @@ -0,0 +1,44 @@ +#!/usr/bin/env python + +import torch + + +def generate_turing_sequences(N, nb_iter=5, nb_states=4, nb_symbols=2, tape_size=5): + next_state = torch.randint(nb_states, (N, nb_states, nb_symbols)) + next_symbol = torch.randint(nb_symbols, (N, nb_states, nb_symbols)) + next_move = torch.randint(3, (N, nb_states, nb_symbols)) + + all_n = torch.arange(N) + + tape = torch.randint(nb_symbols, (N, tape_size)) + position = torch.randint(tape_size, (N,)) + state = torch.randint(nb_states, (N,)) + + result = [] + + for _ in range(nb_iter): + result.append(tape) + current_symbol = tape[all_n, position] + tape[all_n, position] = next_symbol[all_n, state, current_symbol] + position = (position + next_move[all_n, state, current_symbol] - 1) % tape_size + state = next_state[all_n, state, current_symbol] + + result = torch.cat([x[:, None, :] for x in result], dim=1) + + return result + + +###################################################################### + +if __name__ == "__main__": + print("Basic check.") + + tapes = generate_turing_sequences(5) + + for i in range(tapes.size(1)): + print(f"- {i:03d} ------------------------") + # for s, h, r in zip(state, position, tape): + # print("".join([f"{x}" for x in r])) + # print(" " * h + f"^[{s}]") + for r in tapes: + print("".join([f"{x}" for x in r[i]]))