static_thread_pool is not fit into any::__default_buffer_size

[ashat1701]

Hello, I'm trying to get along new standard. But when i wrote simple program like this

exec::task<std::string> coro1(int &counter)
{
    for (int i = 0; i < 10; i++)
    {
        counter += 1;
    }
    co_return std::to_string(counter);
}

exec::task<int> coro2(int &counter)
{
    for (int i = 0; i < 10; i++)
    {
        counter += 1;
    }
    co_return counter;
}

exec::task<void> main_coro(int &counter)
{
    auto [result1, result2] = co_await stdexec::when_all(
        coro1(counter),
        coro2(counter)
        );
    std::cout << result1 << " " << result2 << " " << counter;

    co_return ;
}
int main() {
    exec::static_thread_pool pool(3);
    auto scheduler = pool.get_scheduler();
    int counter = 50;
    stdexec::sync_wait(
        stdexec::when_all(
            stdexec::starts_on(scheduler, main_coro(counter))
            )
    );
}

I have a runtime error:

testAsync: /cmake-build-debug/_deps/stdexec-src/include/stdexec/__detail/__any.hpp:636: virtual void 
stdexec::__any::__value_model<experimental::execution::_any::_ischeduler<experimental::execution::any_sender<experimental::execution::any_receiver<stdexec::completion_signatures<stdexec::set_value_t (), stdexec::set_error_t (std::__exception_ptr::exception_ptr), stdexec::set_stopped_t ()>>>, 
experimental::execution::queries<>>::_interface_, experimental::execution::_pool_::_static_thread_pool::scheduler, 
std::allocator<experimental::execution::_pool_::_static_thread_pool::scheduler>>::__move_to(__iroot *&, std::span<std::byte>) [_Interface = 
experimental::execution::_any::_ischeduler<experimental::execution::any_sender<experimental::execution::any_receiver<stdexec::completion_signatures<stdexec::set_value_t (), stdexec::set_error_t (std::__exception_ptr::exception_ptr), stdexec::set_stopped_t ()>>>, 
experimental::execution::queries<>>::_interface_, _Value = experimental::execution::_pool_::_static_thread_pool::scheduler, _Allocator = 
std::allocator<experimental::execution::_pool_::_static_thread_pool::scheduler>]: Assertion 
`stdexec::__any::__is_small<__value_model>(__buff.size())' failed.

I made some experiments and think that size of static_thread_pool is more than any::__default_buffer_size, so it doesn't fit. If i use another schedulers (for example asio) - it compile and run perfectly. Is it expected behavior, or i doing something wrong

[ericniebler]

you're not doing anything wrong. i need to shrink the size of the thread pool scheduler.