45 lines
796 B
C
45 lines
796 B
C
#include "solve.h"
|
|
#include "matrix.h"
|
|
#include <math.h>
|
|
|
|
|
|
void t7_solve(const double * restrict A, double * restrict x_0, const double * restrict b, double * restrict x, double * restrict r, int n, int m, double t)
|
|
{
|
|
(void)r;
|
|
|
|
for (int k = 0; k < m; ++k)
|
|
{
|
|
double * swap_temp;
|
|
|
|
#pragma omp parallel for
|
|
for (int i = 0; i < n; ++i)
|
|
{
|
|
double sum = 0;
|
|
|
|
#pragma omp simd reduction(+:sum)
|
|
for (int j = 0; j < n; ++j)
|
|
sum += A[i*n + j] * x_0[j];
|
|
|
|
x[i] = x_0[i] + ((b[i] - sum) / A[i*n + i]) * t;
|
|
}
|
|
|
|
swap_temp = x;
|
|
x = x_0;
|
|
x_0 = swap_temp;
|
|
}
|
|
|
|
if (m % 2 == 0) // Проверил 100 раз
|
|
for (int i = 0; i < n; i++)
|
|
{
|
|
double temp = x[i];
|
|
x[i] = x_0[i];
|
|
x_0[i] = temp;
|
|
}
|
|
else
|
|
{
|
|
double * swap_temp = x;
|
|
x = x_0;
|
|
x_0 = swap_temp;
|
|
}
|
|
}
|
|
|