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Update num_threads to use the concurrent hint from the stdlib

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This commit is contained in:
Christian Mazakas
2023-04-25 12:18:15 -07:00
parent 4c117ab20a
commit a7c15e86fc
1 changed files with 4 additions and 2 deletions
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6
test/cfoa/helpers.hpp
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@ -21,8 +21,10 @@
#include <mutex> #include <mutex>
#include <thread> #include <thread>
#include <vector> #include <vector>
#include <type_traits>
constexpr std::size_t const num_threads = 16; static std::size_t const num_threads =
std::max(2u, std::thread::hardware_concurrency());
struct transp_hash struct transp_hash
{ {
@ -326,7 +328,7 @@ std::vector<boost::span<T> > split(
template <class T, class F> void thread_runner(std::vector<T>& values, F f) template <class T, class F> void thread_runner(std::vector<T>& values, F f)
{ {
boost::latch latch(num_threads); boost::latch latch(static_cast<std::ptrdiff_t>(num_threads));
std::vector<std::thread> threads; std::vector<std::thread> threads;
auto subslices = split<T>(values, num_threads); auto subslices = split<T>(values, num_threads);