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[FIXED] Загрядсков Максим. Технология STL. Умножение разреженных матриц. Элементы комплексного типа. Формат хранения матрицы – столбцовый (CCS). Вариант 7 #617

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[FIXED] Загрядсков Максим. Технология STL. Умножение разреженных матриц. Элементы комплексного типа. Формат хранения матрицы – столбцовый (CCS). Вариант 7 #617

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676daa3
remopved eps
midnsun Apr 9, 2026
cf70caa
Update ops_stl.cpp
midnsun Apr 9, 2026
9736a20
Update ops_stl.hpp
midnsun Apr 9, 2026
4dcf5b8
Update ops_seq.hpp
midnsun Apr 9, 2026
afeb647
12
midnsun Apr 9, 2026
82d4084
Update ops_stl.cpp
midnsun Apr 9, 2026
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6 changes: 3 additions & 3 deletions tasks/zagryadskov_m_complex_spmm_ccs/stl/include/ops_stl.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -18,9 +18,9 @@ class ZagryadskovMComplexSpMMCCSSTL : public BaseTask {
private:
inline static void SpMM(const CCS &a, const CCS &b, CCS &c);
inline static void SpMMSymbolic(const CCS &a, const CCS &b, std::vector<int> &col_ptr, int jstart, int jend);
inline static void SpMMNumeric(const CCS &a, const CCS &b, CCS &c, const std::complex<double> &zero, double eps,
int jstart, int jend);
inline static void SpMMKernel(const CCS &a, const CCS &b, CCS &c, const std::complex<double> &zero, double eps,
inline static void SpMMNumeric(const CCS &a, const CCS &b, CCS &c, const std::complex<double> &zero, int jstart,
int jend);
inline static void SpMMKernel(const CCS &a, const CCS &b, CCS &c, const std::complex<double> &zero,
std::vector<int> &rows, std::vector<std::complex<double>> &acc,
std::vector<int> &marker, int j);
bool ValidationImpl() override;
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21 changes: 8 additions & 13 deletions tasks/zagryadskov_m_complex_spmm_ccs/stl/src/ops_stl.cpp
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Expand Up @@ -38,9 +38,8 @@ void ZagryadskovMComplexSpMMCCSSTL::SpMMSymbolic(const CCS &a, const CCS &b, std
}

void ZagryadskovMComplexSpMMCCSSTL::SpMMKernel(const CCS &a, const CCS &b, CCS &c, const std::complex<double> &zero,
double eps, std::vector<int> &rows,
std::vector<std::complex<double>> &acc, std::vector<int> &marker,
int j) {
std::vector<int> &rows, std::vector<std::complex<double>> &acc,
std::vector<int> &marker, int j) {
rows.clear();
int write_ptr = c.col_ptr[j];

Expand All @@ -58,23 +57,21 @@ void ZagryadskovMComplexSpMMCCSSTL::SpMMKernel(const CCS &a, const CCS &b, CCS &
}

for (int r_idx : rows) {
if (std::norm(acc[r_idx]) > eps * eps) {
c.row_ind[write_ptr] = r_idx;
c.values[write_ptr] = acc[r_idx];
++write_ptr;
}
c.row_ind[write_ptr] = r_idx;
c.values[write_ptr] = acc[r_idx];
++write_ptr;
acc[r_idx] = zero;
}
}

void ZagryadskovMComplexSpMMCCSSTL::SpMMNumeric(const CCS &a, const CCS &b, CCS &c, const std::complex<double> &zero,
double eps, int jstart, int jend) {
int jstart, int jend) {
std::vector<int> marker(a.m, -1);
std::vector<std::complex<double>> acc(a.m, zero);
std::vector<int> rows;

for (int j = jstart; j < jend; ++j) {
SpMMKernel(a, b, c, zero, eps, rows, acc, marker, j);
SpMMKernel(a, b, c, zero, rows, acc, marker, j);
}
}

Expand All @@ -85,7 +82,6 @@ void ZagryadskovMComplexSpMMCCSSTL::SpMM(const CCS &a, const CCS &b, CCS &c) {
std::vector<std::thread> threads(num_threads);

std::complex<double> zero(0.0, 0.0);
const double eps = 1e-14;
c.col_ptr.assign(c.n + 1, 0);

for (int tid = 0; tid < num_threads; ++tid) {
Expand All @@ -107,8 +103,7 @@ void ZagryadskovMComplexSpMMCCSSTL::SpMM(const CCS &a, const CCS &b, CCS &c) {
for (int tid = 0; tid < num_threads; ++tid) {
int jstart = (tid * b.n) / num_threads;
int jend = ((tid + 1) * b.n) / num_threads;
threads[tid] =
std::thread(SpMMNumeric, std::cref(a), std::cref(b), std::ref(c), std::cref(zero), eps, jstart, jend);
threads[tid] = std::thread(SpMMNumeric, std::cref(a), std::cref(b), std::ref(c), std::cref(zero), jstart, jend);
}
for (auto &th : threads) {
th.join();
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