forked from StudioInfinity/dyna3
Rust trial: write benchmark
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Aaron Fenyes
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7 changed files with 345 additions and 0 deletions
176
lang-trials/rust-benchmark/src/engine.rs
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176
lang-trials/rust-benchmark/src/engine.rs
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use nalgebra::{*, allocator::Allocator};
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use std::f64::consts::{PI, E};
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use web_sys::console;
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/*use std::ops::Sub;*/
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/*use typenum::{B1, UInt, UTerm};*/
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/*pub fn eigvals_rotated<N>(A: SMatrix<f64, N, N>, time: f64): complex_eigenvalues(&self) -> OVector<NumComplex<T>, D>*/
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/* static matrices. should only be used when the dimension is really small */
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/*pub fn rand_eigval_series<N>(time_res: usize) -> Vec<OVector<Complex<f64>, N>>
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where
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N: ToTypenum + DimName + DimSub<U1>,
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DefaultAllocator:
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Allocator<N> +
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Allocator<N, N> +
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Allocator<<N as DimSub<U1>>::Output> +
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Allocator<N, <N as DimSub<U1>>::Output>
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{
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// initialize the random matrix
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let dim = N::try_to_usize().unwrap();
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console::log_1(&format!("dimension {dim}").into());
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let mut rand_mat = OMatrix::<f64, N, N>::from_fn(|j, k| {
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let n = j*dim + k;
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E*((n*n) as f64) % 2.0 - 1.0
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}) * (3.0 / (dim as f64)).sqrt();
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/*let mut rand_mat = OMatrix::<f64, N, N>::identity();*/
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// initialize the rotation step
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let mut rot_step = OMatrix::<f64, N, N>::identity();
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let max_freq = 4;
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for n in (0..dim).step_by(2) {
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let ang = PI * ((n % max_freq) as f64) / (time_res as f64);
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let ang_cos = ang.cos();
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let ang_sin = ang.sin();
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rot_step[(n, n)] = ang_cos;
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rot_step[(n+1, n)] = ang_sin;
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rot_step[(n, n+1)] = -ang_sin;
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rot_step[(n+1, n+1)] = ang_cos;
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}
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// find the eigenvalues
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let mut eigval_series = Vec::<OVector<Complex<f64>, N>>::with_capacity(time_res);
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console::log_1(&"before engine eigenvalues".into());
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eigval_series.push(rand_mat.complex_eigenvalues());
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console::log_1(&"after engine eigenvalues".into());
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for _ in 1..time_res {
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rand_mat = &rot_step * rand_mat;
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eigval_series.push(rand_mat.complex_eigenvalues());
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}
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eigval_series
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}*/
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/* another attempt at static matrices. i couldn't get the types to work out */
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/*pub fn random_eigval_series<const N: usize>(time_res: usize) -> Vec<OVector<Complex<f64>, Const<N>>>
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where
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Const<N>: ToTypenum,
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<Const<N> as ToTypenum>::Typenum: Sub<UInt<UTerm, B1>>,
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<<Const<N> as ToTypenum>::Typenum as Sub<UInt<UTerm, B1>>>::Output: ToConst
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{
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// initialize the random matrix
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/*let mut rand_mat = SMatrix::<f64, N, N>::zeros();
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for n in 0..N*N {
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rand_mat[n] = E*((n*n) as f64) % 2.0 - 1.0;
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}*/
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let rand_mat = OMatrix::<f64, Const<N>, Const<N>>::from_fn(|j, k| {
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let n = j*N + k;
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E*((n*n) as f64) % 2.0 - 1.0
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});
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// initialize the rotation step
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let mut rot_step = OMatrix::<f64, Const<N>, Const<N>>::identity();
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let max_freq = 4;
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for n in (0..N).step_by(2) {
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let ang = PI * ((n % max_freq) as f64) / (time_res as f64);
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let ang_cos = ang.cos();
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let ang_sin = ang.sin();
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rot_step[(n, n)] = ang_cos;
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rot_step[(n+1, n)] = ang_sin;
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rot_step[(n, n+1)] = -ang_sin;
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rot_step[(n+1, n+1)] = ang_cos;
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}
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// find the eigenvalues
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let mut eigvals = Vec::<OVector<Complex<f64>, Const<N>>>::with_capacity(time_res);
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unsafe { eigvals.set_len(time_res); }
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for t in 0..time_res {
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eigvals[t] = rand_mat.complex_eigenvalues();
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}
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eigvals
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}*/
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/* dynamic matrices */
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pub fn rand_eigval_series<N>(time_res: usize) -> Vec<OVector<Complex<f64>, Dyn>>
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where
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N: ToTypenum + DimName + DimSub<U1>,
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DefaultAllocator:
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Allocator<N> +
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Allocator<N, N> +
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Allocator<<N as DimSub<U1>>::Output> +
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Allocator<N, <N as DimSub<U1>>::Output>
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{
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// initialize the random matrix
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let dim = N::try_to_usize().unwrap();
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console::log_1(&format!("dimension {dim}").into());
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let mut rand_mat = DMatrix::<f64>::from_fn(dim, dim, |j, k| {
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let n = j*dim + k;
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E*((n*n) as f64) % 2.0 - 1.0
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}) * (3.0 / (dim as f64)).sqrt();
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// initialize the rotation step
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let mut rot_step = DMatrix::<f64>::identity(dim, dim);
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let max_freq = 4;
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for n in (0..dim).step_by(2) {
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let ang = PI * ((n % max_freq) as f64) / (time_res as f64);
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let ang_cos = ang.cos();
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let ang_sin = ang.sin();
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rot_step[(n, n)] = ang_cos;
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rot_step[(n+1, n)] = ang_sin;
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rot_step[(n, n+1)] = -ang_sin;
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rot_step[(n+1, n+1)] = ang_cos;
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}
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// find the eigenvalues
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let mut eigval_series = Vec::<OVector<Complex<f64>, Dyn>>::with_capacity(time_res);
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console::log_1(&"before engine eigenvalues".into());
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eigval_series.push(rand_mat.complex_eigenvalues());
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console::log_1(&"after engine eigenvalues".into());
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for _ in 1..time_res {
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rand_mat = &rot_step * rand_mat;
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eigval_series.push(rand_mat.complex_eigenvalues());
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}
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eigval_series
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}
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/* dynamic single float matrices */
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/*pub fn rand_eigval_series<N>(time_res: usize) -> Vec<OVector<Complex<f32>, Dyn>>
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where
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N: ToTypenum + DimName + DimSub<U1>,
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DefaultAllocator:
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Allocator<N> +
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Allocator<N, N> +
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Allocator<<N as DimSub<U1>>::Output> +
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Allocator<N, <N as DimSub<U1>>::Output>
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{
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// initialize the random matrix
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let dim = N::try_to_usize().unwrap();
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console::log_1(&format!("dimension {dim}").into());
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let mut rand_mat = DMatrix::<f32>::from_fn(dim, dim, |j, k| {
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let n = j*dim + k;
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(E as f32)*((n*n) as f32) % 2.0_f32 - 1.0_f32
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}) * (3.0_f32 / (dim as f32)).sqrt();
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// initialize the rotation step
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let mut rot_step = DMatrix::<f32>::identity(dim, dim);
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let max_freq = 4;
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for n in (0..dim).step_by(2) {
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let ang = (PI as f32) * ((n % max_freq) as f32) / (time_res as f32);
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let ang_cos = ang.cos();
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let ang_sin = ang.sin();
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rot_step[(n, n)] = ang_cos;
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rot_step[(n+1, n)] = ang_sin;
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rot_step[(n, n+1)] = -ang_sin;
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rot_step[(n+1, n+1)] = ang_cos;
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}
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// find the eigenvalues
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let mut eigval_series = Vec::<OVector<Complex<f32>, Dyn>>::with_capacity(time_res);
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console::log_1(&"before engine eigenvalues".into());
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eigval_series.push(rand_mat.complex_eigenvalues());
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console::log_1(&"after engine eigenvalues".into());
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for _ in 1..time_res {
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rand_mat = &rot_step * rand_mat;
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eigval_series.push(rand_mat.complex_eigenvalues());
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}
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eigval_series
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}*/
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