Method foreach

src/core/impl/comp_node/cuda/comp_node.cpp:1049–1064

}

void CudaCompNode::foreach (thin_function<void(CompNode)> callback) {
    auto sd = CudaCompNodeImpl::sd;
    if (!sd)
        return;

    for (int i = 0;; ++i) {
        CompNode cur;
        {
            MGB_LOCK_GUARD(sd->mtx);
            if (i >= sd->nr_node)
                return;
            cur = make_comp_node_from_impl(&sd->node[i]);
        }
        callback(cur);
    }
}

size_t CudaCompNode::get_device_count(bool warn) {
    static int cnt = -1;