int main(int argc, char* argv[])
{
mpi::environment env(argc, argv);
mpi::communicator world;
if(world.size() < 2)
throw std::runtime_error("Please run with at least 2 MPI processes!");
int group_a_ranks[2] = {0,1};
mpi::group world_group = world.group();
mpi::group group_a = world_group.include(group_a_ranks,group_a_ranks+2);
mpi::communicator comm_a(world,group_a);
std::string value("Hello world!");
if(comm_a)
{
if(comm_a.rank() == 0) {
value = "Hello group a!";
}
mpi::broadcast(comm_a, value, 0);
}
std::cout << "Process #" << world.rank() << " says " << value << std::endl;
return 0;
}
static void add_comment(CommentPtr comment, Wt::WTextEdit* edit,
ForumCommentWidget* widget) {
dbo::Transaction t(tApp->session());
comment.reread();
tApp->user().reread();
Comment::State state = Comment::state_of_new(tApp->user(),
Comment::FORUM_COMMENT, comment);
if (state == Comment::DELETED) {
return;
}
CommentPtr c = tApp->session().add(new Comment(true));
c.modify()->set_parent(comment);
c.modify()->set_type(Comment::FORUM_COMMENT);
c.modify()->set_text(patch_text_edit_text(edit->valueText()));
c.modify()->set_init(tApp->user());
c.modify()->set_root(comment->root());
c.modify()->set_state(state);
int root_id = comment->root().id();
CommentPtr post_text = comment->root();
CommentPtr post = post_text->parent();
post.reread();
post.modify()->post_comment_added();
c.flush();
// private notification
Wt::WString notification = "[auto] " + comm_a(c.id());
User::send_message(tApp->user(), post->init(), notification);
if (post->init() != comment->init()) {
User::send_message(tApp->user(), comment->init(), notification);
}
t.commit();
t_emit(COMMENT, root_id);
if (state == Comment::DRAFT) {
widget->clear();
widget->addWidget(new Wt::WText(Wt::WString::tr(
"tc.comment.draft_message")));
} else {
tApp->path().post()->set_integer_value(post.id());
tApp->path().post()->open();
}
}
