You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
49 lines
1.3 KiB
49 lines
1.3 KiB
4 months ago
|
#include <stdio.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
#include <assert.h>
|
||
|
|
|
||
|
|
#include <pthreadpool.h>
|
||
|
|
|
||
|
|
struct array_addition_context {
|
||
|
|
double *augend;
|
||
|
|
double *addend;
|
||
|
|
double *sum;
|
||
|
|
};
|
||
|
|
|
||
|
|
static void add_arrays(struct array_addition_context* context, size_t i) {
|
||
|
|
context->sum[i] = context->augend[i] + context->addend[i];
|
||
|
|
}
|
||
|
|
|
||
|
|
#define ARRAY_SIZE 4
|
||
|
|
|
||
|
|
int main() {
|
||
|
|
double augend[ARRAY_SIZE] = { 1.0, 2.0, 4.0, -5.0 };
|
||
|
|
double addend[ARRAY_SIZE] = { 0.25, -1.75, 0.0, 0.5 };
|
||
|
|
double sum[ARRAY_SIZE];
|
||
|
|
|
||
|
|
pthreadpool_t threadpool = pthreadpool_create(0);
|
||
|
|
assert(threadpool != NULL);
|
||
|
|
|
||
|
|
const size_t threads_count = pthreadpool_get_threads_count(threadpool);
|
||
|
|
printf("Created thread pool with %zu threads\n", threads_count);
|
||
|
|
|
||
|
|
struct array_addition_context context = { augend, addend, sum };
|
||
|
|
pthreadpool_parallelize_1d(threadpool,
|
||
|
|
(pthreadpool_task_1d_t) add_arrays,
|
||
|
|
(void**) &context,
|
||
|
|
ARRAY_SIZE,
|
||
|
|
PTHREADPOOL_FLAG_DISABLE_DENORMALS /* flags */);
|
||
|
|
|
||
|
|
pthreadpool_destroy(threadpool);
|
||
|
|
threadpool = NULL;
|
||
|
|
|
||
|
|
printf("%8s\t%.2lf\t%.2lf\t%.2lf\t%.2lf\n", "Augend",
|
||
|
|
augend[0], augend[1], augend[2], augend[3]);
|
||
|
|
printf("%8s\t%.2lf\t%.2lf\t%.2lf\t%.2lf\n", "Addend",
|
||
|
|
addend[0], addend[1], addend[2], addend[3]);
|
||
|
|
printf("%8s\t%.2lf\t%.2lf\t%.2lf\t%.2lf\n", "Sum",
|
||
|
|
sum[0], sum[1], sum[2], sum[3]);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|