Struct SolverAuditEntry 

pub struct SolverAuditEntry {
    pub request_id: String,
    pub algorithm: Algorithm,
    pub input_hash: [u8; 8],
    pub output_hash: [u8; 8],
    pub iterations: usize,
    pub wall_time_us: u64,
    pub converged: bool,
    pub residual: f64,
    pub timestamp_ns: u128,
    pub matrix_rows: usize,
    pub matrix_nnz: usize,
}

A single audit trail record for one solver invocation.

Captures a deterministic fingerprint of the problem (input hash), the solution (output hash), performance counters, and a monotonic timestamp.

Serialization

Derives Serialize / Deserialize so entries can be persisted as JSON, MessagePack, or any serde-compatible format.

Fields

request_id: String

Unique identifier for this solve request.

algorithm: Algorithm

Algorithm that produced the result.

input_hash: [u8; 8]

8-byte hash of the input (matrix + rhs). Produced by hash_input.

output_hash: [u8; 8]

8-byte hash of the output solution vector. Produced by hash_output.

iterations: usize

Number of iterations the solver executed.

wall_time_us: u64

Wall-clock time in microseconds.

converged: bool

Whether the solver converged within tolerance.

residual: f64

Final residual L2 norm.

timestamp_ns: u128

Timestamp as nanoseconds since the Unix epoch.

matrix_rows: usize

Number of rows in the input matrix.

matrix_nnz: usize

Number of non-zero entries in the input matrix.

Trait Implementations

impl Clone for SolverAuditEntry

fn clone(&self) -> SolverAuditEntry

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SolverAuditEntry

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SolverAuditEntry

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for SolverAuditEntry

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.