Struct RooflineModel 

pub struct RooflineModel {
    pub target: String,
    pub peak_compute: HashMap<Precision, f64>,
    pub peak_bandwidth: HashMap<MemoryLevel, f64>,
}

Roofline model for a specific hardware target. Implements the Empirical Roofline Toolkit (ERT) methodology [6].

Fields

target: String

Hardware target name (e.g., “RTX 4090”, “AMD EPYC AVX2”)

peak_compute: HashMap<Precision, f64>

Peak compute throughput (FLOP/s) per precision

peak_bandwidth: HashMap<MemoryLevel, f64>

Peak memory bandwidth (bytes/s) per memory level

Implementations

impl RooflineModel

pub fn ridge_point( &self, precision: Precision, mem_level: MemoryLevel, ) -> Option<f64>

Compute the ridge point for a given precision and memory level. Ridge = peak_compute / peak_bandwidth (FLOP/byte). This is the arithmetic intensity where the kernel transitions from memory-bound to compute-bound.

pub fn theoretical_peak( &self, arithmetic_intensity: f64, precision: Precision, mem_level: MemoryLevel, ) -> Option<f64>

Compute the theoretical peak throughput at a given arithmetic intensity. throughput = min(peak_compute, AI * peak_bandwidth)

pub fn classify( &self, arithmetic_intensity: f64, achieved_throughput: f64, precision: Precision, mem_level: MemoryLevel, ) -> Option<KernelRooflinePoint>

Classify a kernel as compute-bound or memory-bound.

pub fn rtx_4090() -> Self

Create the RTX 4090 roofline model with spec values.

pub fn cpu_avx2(freq_ghz: f64, cores: usize, mem_bandwidth_gbps: f64) -> Self

Create a CPU AVX2+FMA roofline model. Assumes dual 256-bit FMA units (e.g., AMD EPYC / Intel Skylake).

pub fn cpu_avx512(freq_ghz: f64, cores: usize, mem_bandwidth_gbps: f64) -> Self

Create a CPU AVX-512 roofline model. AVX-512: 2 FMA units * 16 floats * 2 (FMA) * freq * cores.

pub fn cpu_neon(freq_ghz: f64, cores: usize, mem_bandwidth_gbps: f64) -> Self

Create an ARM NEON roofline model. NEON: 2 FMA units * 4 floats * 2 (FMA) * freq * cores (typical A76/A78).

Trait Implementations

impl Clone for RooflineModel

fn clone(&self) -> RooflineModel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RooflineModel

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for RooflineModel

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for RooflineModel

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

where __S: Serializer,

Serialize this value into the given Serde serializer.