extern crate nalgebra_sparse;
use nalgebra_sparse::CsrMatrix;
use std::time::{Duration, Instant};

#[cfg(feature = "io")]
use nalgebra_sparse::io::load_coo_from_matrix_market_file;
fn main() {
    #[cfg(feature = "io")]
    {
        let sparse_input_matrix =
            load_coo_from_matrix_market_file::<f64, _>("./data/crankseg_1.mtx").unwrap();
        let sparse_input_matrix = CsrMatrix::from(&sparse_input_matrix);
        let spmm_result = &sparse_input_matrix * &sparse_input_matrix;
        let now = Instant::now();
        let spmm_result = &sparse_input_matrix * &sparse_input_matrix;
        let spmm_time = now.elapsed().as_millis();
        println!("SGEMM time was {}", spmm_time);
        let sum: f64 = spmm_result.triplet_iter().map(|(_, _, v)| v).sum();
        println!("sum of product is {}", sum);
    }
    #[cfg(not(feature = "io"))]
    {
        panic!("Run with IO feature only");
    }
}