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This commit is contained in:
Jean-Philippe Bossuat
2025-04-25 15:24:09 +02:00
parent 90b34e171d
commit 2a96f89047
16 changed files with 864 additions and 895 deletions
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35
base2k/examples/vector_matrix_product.rs
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@@ -1,5 +1,5 @@
use base2k::{
BACKEND, Encoding, Infos, Module, VecZnx, VecZnxBig, VecZnxBigOps, VecZnxDft, VecZnxDftOps, VecZnxOps, VmpPMat, VmpPMatOps,
Encoding, FFT64, Infos, Module, VecZnx, VecZnxBig, VecZnxBigOps, VecZnxDft, VecZnxDftOps, VecZnxOps, VmpPMat, VmpPMatOps,
alloc_aligned,
};
@@ -7,50 +7,51 @@ fn main() {
let log_n: i32 = 5;
let n: usize = 1 << log_n;
let module: Module = Module::new(n, BACKEND::FFT64);
let module: Module<FFT64> = Module::<FFT64>::new(n);
let log_base2k: usize = 15;
let cols: usize = 5;
let log_k: usize = log_base2k * cols - 5;
let limbs_vec: usize = 5;
let log_k: usize = log_base2k * limbs_vec - 5;
let rows: usize = cols;
let cols: usize = cols + 1;
let rows_mat: usize = limbs_vec;
let limbs_mat: usize = limbs_vec + 1;
// Maximum size of the byte scratch needed
let tmp_bytes: usize = module.vmp_prepare_tmp_bytes(rows, cols) | module.vmp_apply_dft_tmp_bytes(cols, cols, rows, cols);
let tmp_bytes: usize = module.vmp_prepare_tmp_bytes(rows_mat, 1, limbs_mat)
| module.vmp_apply_dft_tmp_bytes(limbs_vec, limbs_vec, rows_mat, limbs_mat);
let mut buf: Vec<u8> = alloc_aligned(tmp_bytes);
let mut a_values: Vec<i64> = vec![i64::default(); n];
a_values[1] = (1 << log_base2k) + 1;
let mut a: VecZnx = module.new_vec_znx(1, rows);
let mut a: VecZnx = module.new_vec_znx(1, limbs_vec);
a.encode_vec_i64(0, log_base2k, log_k, &a_values, 32);
a.normalize(log_base2k, &mut buf);
a.print(0, a.cols(), n);
a.print(n);
println!();
let mut vmp_pmat: VmpPMat = module.new_vmp_pmat(1, rows, cols);
let mut vmp_pmat: VmpPMat<FFT64> = module.new_vmp_pmat(rows_mat, 1, limbs_mat);
(0..a.cols()).for_each(|row_i| {
let mut tmp: VecZnx = module.new_vec_znx(1, cols);
tmp.at_mut(row_i)[1] = 1 as i64;
(0..a.limbs()).for_each(|row_i| {
let mut tmp: VecZnx = module.new_vec_znx(1, limbs_mat);
tmp.at_limb_mut(row_i)[1] = 1 as i64;
module.vmp_prepare_row(&mut vmp_pmat, tmp.raw(), row_i, &mut buf);
});
let mut c_dft: VecZnxDft = module.new_vec_znx_dft(1, cols);
let mut c_dft: VecZnxDft<FFT64> = module.new_vec_znx_dft(1, limbs_mat);
module.vmp_apply_dft(&mut c_dft, &a, &vmp_pmat, &mut buf);
let mut c_big: VecZnxBig = c_dft.as_vec_znx_big();
let mut c_big: VecZnxBig<FFT64> = c_dft.as_vec_znx_big();
module.vec_znx_idft_tmp_a(&mut c_big, &mut c_dft);
let mut res: VecZnx = module.new_vec_znx(1, rows);
let mut res: VecZnx = module.new_vec_znx(1, limbs_vec);
module.vec_znx_big_normalize(log_base2k, &mut res, &c_big, &mut buf);
let mut values_res: Vec<i64> = vec![i64::default(); n];
res.decode_vec_i64(0, log_base2k, log_k, &mut values_res);
res.print(0, res.cols(), n);
res.print(n);
module.free();