mirror of
https://github.moeyy.xyz/https://github.com/TheAlgorithms/C.git
synced 2023-10-11 15:56:24 +08:00
move openmp loop variable outside
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parent
bf1c367a62
commit
dee56f7781
@ -25,7 +25,8 @@ int get_number(FILE *fp, char *buffer, uint8_t *out_int)
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{
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{
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perror("found inavlid character in the number!");
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perror("found inavlid character in the number!");
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return -1;
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return -1;
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} else
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}
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else
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out_int[L - i - 1] = buffer[i] - 0x30;
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out_int[L - i - 1] = buffer[i] - 0x30;
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return 0;
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return 0;
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@ -48,7 +49,8 @@ int add_numbers(uint8_t *a, uint8_t *b, uint8_t N)
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{
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{
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carry = 1;
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carry = 1;
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c[i] -= 10;
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c[i] -= 10;
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} else
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}
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else
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carry = 0;
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carry = 0;
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// printf("= %d, %d\n", carry, c[i]);
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// printf("= %d, %d\n", carry, c[i]);
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}
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}
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@ -63,7 +65,8 @@ int add_numbers(uint8_t *a, uint8_t *b, uint8_t N)
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{
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{
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carry = 1;
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carry = 1;
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c[i] -= 10;
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c[i] -= 10;
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} else
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}
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else
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carry = 0;
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carry = 0;
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// printf("= %d, %d\n", carry, c[i]);
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// printf("= %d, %d\n", carry, c[i]);
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}
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}
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@ -98,10 +101,12 @@ int print_number(uint8_t *number, uint8_t N, int8_t num_digits_to_print)
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return 0;
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return 0;
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}
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}
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#define N 10
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#define N2 (N + 10)
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int main(void)
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int main(void)
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{
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{
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const char N = 50, N2 = N+10; /* length of numbers */
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// const char N = 50, N2 = N+10; /* length of numbers */
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char txt_buffer[N + 5]; /* temporary buffer */
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char txt_buffer[N + 5]; /* temporary buffer */
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uint8_t number[N]; /* array to store digits of a large number */
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uint8_t number[N]; /* array to store digits of a large number */
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uint8_t sum[N2]; /* array to store the sum of the large numbers. For
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uint8_t sum[N2]; /* array to store the sum of the large numbers. For
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@ -118,7 +123,8 @@ int main(void)
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int count = 0;
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int count = 0;
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get_number(fp, txt_buffer, sum); /* 0 + = first_number = first_number */
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get_number(fp, txt_buffer, sum); /* 0 + = first_number = first_number */
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do {
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do
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{
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count++;
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count++;
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if (get_number(fp, txt_buffer, number) != 0)
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if (get_number(fp, txt_buffer, number) != 0)
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break;
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break;
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@ -46,10 +46,11 @@ int main(int argc, char **argv)
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*
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*
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* Automatically detects for OPENMP using the _OPENMP macro.
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* Automatically detects for OPENMP using the _OPENMP macro.
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**/
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**/
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long long i;
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#ifdef _OPENMP
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#ifdef _OPENMP
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#pragma omp parallel for shared(max_len, max_len_num) schedule(guided)
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#pragma omp parallel for shared(max_len, max_len_num) schedule(guided)
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#endif
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#endif
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for (long long i = 1; i < MAX_NUM; i++)
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for (i = 1; i < MAX_NUM; i++)
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{
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{
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long long L = collatz(i);
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long long L = collatz(i);
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if (L > max_len)
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if (L > max_len)
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@ -52,12 +52,12 @@ int main(int argc, char **argv)
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char *flags = (char *)calloc(MAX_N, sizeof(char));
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char *flags = (char *)calloc(MAX_N, sizeof(char));
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clock_t start_time = clock();
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clock_t start_time = clock();
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unsigned int i;
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#ifdef _OPENMP
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#ifdef _OPENMP
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#pragma omp for schedule(runtime)
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#pragma omp for schedule(runtime)
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#endif
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#endif
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/* there are no such numbers till 10. Lets search from there on */
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/* there are no such numbers till 10. Lets search from there on */
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for (unsigned int i = 10; i < MAX_N; i++)
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for (i = 10; i < MAX_N; i++)
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{
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{
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if (flags[i] != 0)
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if (flags[i] != 0)
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/* already processed, skip */
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/* already processed, skip */
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@ -110,14 +110,16 @@ int main(int argc, char **argv)
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long sum_score = 0;
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long sum_score = 0;
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clock_t start_time = clock();
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clock_t start_time = clock();
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unsigned int i;
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#ifdef _OPENMP
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#ifdef _OPENMP
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#pragma omp parallel for schedule(runtime) reduction(+ \
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#pragma omp parallel for schedule(runtime) reduction(+ \
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: sum_score)
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: sum_score)
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#endif
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#endif
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#ifdef DEBUG
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#ifdef DEBUG
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for (unsigned int i = 935; i < 940; i++)
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for (i = 935; i < 940; i++)
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#else
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#else
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for (unsigned int i = 0; i < COUNT; i++)
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for (i = 0; i < COUNT; i++)
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#endif
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#endif
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{
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{
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unsigned int score = 0;
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unsigned int score = 0;
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@ -92,12 +92,13 @@ int main(int argc, char **argv)
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#endif
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#endif
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double total_duration = 0;
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double total_duration = 0;
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unsigned long i;
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function_timer *timer = new_timer();
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function_timer *timer = new_timer();
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#ifdef _OPENMP
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#ifdef _OPENMP
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#pragma omp parallel for reduction(+ \
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#pragma omp parallel for reduction(+ \
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: sum) schedule(runtime)
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: sum) schedule(runtime)
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#endif
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#endif
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for (unsigned long i = 1; i <= MAX_N; i++)
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for (i = 1; i <= MAX_N; i++)
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{
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{
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start_timer(timer);
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start_timer(timer);
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if (!is_sum_of_abundant(i))
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if (!is_sum_of_abundant(i))
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@ -120,10 +120,11 @@ int main(int argc, char **argv)
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clock_t start_time = clock();
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clock_t start_time = clock();
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/* Loop to set abundant flags */
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/* Loop to set abundant flags */
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unsigned long N;
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#ifdef _OPENMP
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#ifdef _OPENMP
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#pragma omp for schedule(runtime)
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#pragma omp for schedule(runtime)
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#endif
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#endif
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for (unsigned long N = 1; N <= MAX_N; N++)
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for (N = 1; N <= MAX_N; N++)
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{
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{
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char ret = get_perfect_number(N);
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char ret = get_perfect_number(N);
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if (ret == 1)
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if (ret == 1)
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@ -19,10 +19,11 @@ int main(int argc, char *argv[])
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unsigned short max_digits = 0, max_idx_number = 0;
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unsigned short max_digits = 0, max_idx_number = 0;
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clock_t start_time = clock();
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clock_t start_time = clock();
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unsigned short deno;
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#ifdef _OPENMP
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#ifdef _OPENMP
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#pragma omp for
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#pragma omp for
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#endif
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#endif
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for (unsigned short deno = 2; deno < MAX_DENO; deno++)
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for (deno = 2; deno < MAX_DENO; deno++)
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{
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{
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unsigned short remainders[MAX_LEN];
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unsigned short remainders[MAX_LEN];
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unsigned short rem = 1, *rem_ptr = remainders;
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unsigned short rem = 1, *rem_ptr = remainders;
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