AZEN-SGG/2nd_Sem_Bogachev
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AZEN-SGG 2025-03-26 15:17:02 +03:00
parent 4134eda893
commit 3eb349f81c
32 changed files with 475 additions and 16 deletions
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5
2025.03.28/02Ex/a.txt Normal file
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@ -0,0 +1,5 @@
4 1 0 0 0
1 4 1 0 0
0 1 4 1 0
0 0 1 4 1
0 0 0 1 4

9
2025.03.28/02Ex/matrix.c
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@ -8,12 +8,9 @@ void init_vec_b(const double * restrict a, double * restrict b, int n)
{
double sum = 0;
// #pragma omp simd reduction(+:sum)
// for (int k = 1; k < n; k+=2)
// sum += a[i * n + k];
for (int k = 0; k < (n-1)/2; ++k)
sum += a[i*n + 2*k+1];
#pragma omp simd reduction(+:sum)
for (int k = 1; k < n; k+=2)
sum += a[i * n + k];
b[i] = sum;
}

19
2025.03.28/02Ex/solve.c
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@ -5,7 +5,6 @@
void t2_solve(const double * restrict A, double * restrict x_0, const double * restrict b, double * restrict x, int n, int m, double t)
{
#pragma omp parallel for
for (int k = 0; k < m; ++k)
{
double * swap_temp;
@ -20,7 +19,7 @@ void t2_solve(const double * restrict A, double * restrict x_0, const double * r
x_0 = swap_temp;
}
if (m % 2 == 0)
if (m % 2 == 0) // Проверил 100 раз
for (int i = 0; i < n; i++)
{
double temp = x[i];
@ -62,18 +61,18 @@ double t2_get_r1(const double * restrict A, const double * restrict x_k, const d
double t2_get_r2_value(const double * restrict x_k, int n)
{
double r2 = 0;
double abs_xi = 0;
double abs_i = 0;
double relative_error = 0;
double total_diff = 0;
double template_sum = 0;
#pragma omp parallel for reduction(+:abs_xi, abs_i)
#pragma omp parallel for reduction(+:total_diff, template_sum)
for (int i = 0; i < n; ++i)
{
short int modi = i ^ 1;
abs_xi += fabs(x_k[i] - modi);
abs_i += modi;
total_diff += fabs(x_k[i] - modi);
template_sum += modi;
}
r2 = abs_xi / abs_i;
return r2;
relative_error = total_diff / template_sum;
return relative_error;
}

5
2025.03.28/02Ex/t.txt Normal file
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@ -0,0 +1,5 @@
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