设置FFT PATIENT模式超时时间
void kml_fft_set_timelimit(double tlim)
void kml_fftf_set_timelimit(double tlim)
void kml_ffth_set_timelimit(double tlim)
参数名 |
描述 |
取值范围 |
输入/输出 |
|---|---|---|---|
tlim |
设置FFT PATIENT模式超时时间，单位为秒。若不调用改接口，表现为无时间限制。 |
double 负数、0表现为无时间限制，plan接口将进行完整的PATIENT模式搜索 正数值将设定指定秒数的超时时间，内部搜索循环会在每次评估后进行超时判断，若超时，则输出已评估列表中的最优解。 |
输入 |
C: "kfft.h"
int N = 16;
kml_fft_complex *in;
kml_fft_complex *out;
kml_fft_plan plan;
in = (kml_fft_complex*)kml_fft_malloc(sizeof(kml_fft_complex) * N);
out = (kml_fft_complex*)kml_fft_malloc(sizeof(kml_fft_complex) * N);
for (int i = 0; i < N; i++){
in[i][0] = (double)i;
in[i][1] = (double)i;
}
kml_fft_set_timelimit(10);
plan = kml_fft_plan_dft_1d(N, in , out, KML_FFT_FORWARD, KML_FFT_PATIENT);
kml_fft_execute_dft(plan, in, out);
kml_fft_destroy_plan(plan);
kml_fft_free(in);
kml_fft_free(out);
/*
* out = {{1.200000e+02, 1.200000e+02}, {-4.821872e+01, 3.221872e+01},
* {-2.731371e+01, 1.131371e+01}, {-1.997285e+01, 3.972846e+00},
* {-1.600000e+01, 0.000000e+00}, {-1.334543e+01, -2.654571e+00},
* {-1.131371e+01, -4.686292e+00}, {-9.591299e+00, -6.408701e+00},
* {-8.000000e+00, -8.000000e+00}, {-6.408701e+00, -9.591299e+00},
* {-4.686292e+00, -1.131371e+01}, {-2.654571e+00, -1.334543e+01},
* {0.000000e+00, -1.600000e+01}, {3.972846e+00, -1.997285e+01},
* {1.131371e+01, -2.731371e+01}, {3.221872e+01, -4.821872e+01}}
*/