commit | a36d79ec38f92d119203c313cafeef1109843117 | [log] [tgz] |
---|---|---|
author | Zhi An Ng <zhin@google.com> | Tue Aug 08 11:23:56 2023 +0800 |
committer | Marat Dukhan <maratek@gmail.com> | Mon Aug 07 21:27:11 2023 -0600 |
tree | 87c1ee42006f9c6e74a817578dc25e7d035f6edd | |
parent | edeb5d6b967bef092ff195ab40e216fa5ac11f61 [diff] |
Update GoogleTest to 1.12.0 Getting some weird warnings with 1.11.0 In file included from /src/pthreadpool/build/googletest-source/googletest/src/gtest-all.cc:42: /src/pthreadpool/build/googletest-source/googletest/src/gtest-death-test.cc: In function ‘bool testing::internal::StackGrowsDown()’: /src/pthreadpool/build/googletest-source/googletest/src/gtest-death-test.cc:1301:24: error: ‘dummy’ may be used uninitialized [-Werror=maybe-uninitialized] 1301 | StackLowerThanAddress(&dummy, &result); | ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
pthreadpool is a portable and efficient thread pool implementation. It provides similar functionality to #pragma omp parallel for
, but with additional features.
The following example demonstates using the thread pool for parallel addition of two arrays:
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; }