2 Commits

Author SHA1 Message Date
Daniel Lubarov
9081ae7337
Reduce noise in FRI logging (#129)
* Reduce noise in FRI logging

Previously, all logs related to gate counts were at the `Debug` log level. This PR gives us more flexibility to adjust the log levels of particular scopes.

In particular, our circuit checks 40 FRI queries, and we log a bunch of steps for each query, creating a lot of noise. With this change, we log just a single FRI query at the `Debug` level, and demote others to the `Trace` level.

With `RUST_LOG=debug`, our logs now look like

```
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] 17631 gates to root
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | 8 gates to observe proof and generates challenges
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | 4150 gates to evaluate the vanishing polynomial at our challenge point, zeta.
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | 3184 gates to evaluate gate constraints
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 227 gates to evaluate InterpolationGate { num_points: 4, _phantom: PhantomData }<D=4> constraints
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 867 gates to evaluate <R=101> GMiMCGate { ... } constraints
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 576 gates to evaluate BaseSumGate { num_limbs: 63 } + Base: 2 constraints
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 78 gates to evaluate ArithmeticExtensionGate constraints
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 288 gates to evaluate BaseSumGate { num_limbs: 31 } + Base: 2 constraints
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 115 gates to evaluate InsertionGate { vec_size: 3, _phantom: PhantomData }<D=4> constraints
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 26 gates to evaluate BaseSumGate { num_limbs: 2 } + Base: 2 constraints
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 633 gates to evaluate ReducingGate { num_coeffs: 21 } constraints
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 4 gates to evaluate ConstantGate constraints
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 11 gates to evaluate PublicInputGate constraints
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 2 gates to evaluate NoopGate constraints
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | 16 gates to check vanishing and quotient polynomials.
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | 13336 gates to verify FRI proof
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | 6 gates to recover the random betas used in the FRI reductions.
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | 4 gates to check PoW
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | 104 gates to precompute reduced evaluations
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | 330 gates to verify one (of 40) query rounds
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 95 gates to check FRI initial proof
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | | 22 gates to verify 0'th initial Merkle proof
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | | 33 gates to verify 1'th initial Merkle proof
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | | 20 gates to verify 2'th initial Merkle proof
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | | 20 gates to verify 3'th initial Merkle proof
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 34 gates to compute x from its index
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 32 gates to combine initial oracles
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 17 gates to verify FRI round Merkle proof.
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 10 gates to infer evaluation using interpolation
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 15 gates to verify FRI round Merkle proof.
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 10 gates to infer evaluation using interpolation
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 13 gates to verify FRI round Merkle proof.
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 10 gates to infer evaluation using interpolation
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 11 gates to verify FRI round Merkle proof.
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 10 gates to infer evaluation using interpolation
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 9 gates to verify FRI round Merkle proof.
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 10 gates to infer evaluation using interpolation
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 7 gates to verify FRI round Merkle proof.
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 10 gates to infer final evaluation using interpolation
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | | 8 gates to evaluate final polynomial
```

This bit corresponds to the single FRI query being shown:

```
[2021-07-26T21:07:45Z DEBUG plonky2::context_tree] | | 330 gates to verify one (of 40) query rounds
```

* Minor cleanup

* Address feedback
2021-07-26 16:21:14 -07:00
Daniel Lubarov
8438d23937
Tree of scopes (#106)
* Tree of scopes

This is an extension of the context concept.

Earlier I was planning to store a simple stack of contexts, but I ended up storing the whole history, in a tree structure. This gives us more control over the output, i.e. we can print the gate count of a parent scope before those of its child scopes, which seems more user-friendly.

Sample gate count output:

    [2021-07-19T18:09:24Z INFO  plonky2::circuit_builder] 27829 gates to root
    [2021-07-19T18:09:24Z INFO  plonky2::circuit_builder] | 2373 gates to evaluate the vanishing polynomial at our challenge point, zeta.
    [2021-07-19T18:09:24Z INFO  plonky2::circuit_builder] | | 1284 gates to evaluate gate constraints
    [2021-07-19T18:09:24Z INFO  plonky2::circuit_builder] | 25312 gates to verify FRI proof
    [2021-07-19T18:09:24Z INFO  plonky2::circuit_builder] | | 650 gates to verify 0'th FRI query
    [2021-07-19T18:09:24Z INFO  plonky2::circuit_builder] | | | 96 gates to check FRI initial proof
    [2021-07-19T18:09:24Z INFO  plonky2::circuit_builder] | | | 65 gates to compute x from its index
    [2021-07-19T18:09:24Z INFO  plonky2::circuit_builder] | | | 233 gates to combine initial oracles
    ...

Sample copy constraint failure:

    Error: Copy constraint 'root > verify FRI proof > verify 0'th FRI query > check FRI initial proof > verify 0'th initial Merkle proof > check Merkle root: 0-th hash element' between wire 12 of gate #2550 [...] and wire 0 of gate #0 [...] is not satisfied. Got values of 6861386743364621393 and 0 respectively.

* No min

* info -> debug

* Move to its own file
2021-07-19 12:22:18 -07:00