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| void  | ityr::ito::init (MPI_Comm comm=MPI_COMM_WORLD) | 
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| void  | ityr::ito::fini () | 
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| template<typename Fn , typename... Args>  | 
| auto  | ityr::ito::root_exec (Fn &&fn, Args &&... args) | 
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| template<typename SchedLoopCallback , typename Fn , typename... Args>  | 
| auto  | ityr::ito::root_exec (with_callback_t, SchedLoopCallback cb, Fn &&fn, Args &&... args) | 
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| bool  | ityr::ito::is_spmd () | 
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| bool  | ityr::ito::is_root () | 
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| template<typename Fn , typename... Args>  | 
| auto  | ityr::ito::coll_exec (const Fn &fn, const Args &... args) | 
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| template<typename PreSuspendCallback , typename PostSuspendCallback >  | 
| void  | ityr::ito::migrate_to (common::topology::rank_t target_rank, PreSuspendCallback &&pre_suspend_cb, PostSuspendCallback &&post_suspend_cb) | 
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| void  | ityr::ito::migrate_to (common::topology::rank_t target_rank) | 
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| template<typename PreSuspendCallback , typename PostSuspendCallback >  | 
| void  | ityr::ito::poll (PreSuspendCallback &&pre_suspend_cb, PostSuspendCallback &&post_suspend_cb) | 
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| void  | ityr::ito::task_group_begin (task_group_data *tgdata) | 
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| template<typename PreSuspendCallback , typename PostSuspendCallback >  | 
| void  | ityr::ito::task_group_end (PreSuspendCallback &&pre_suspend_cb, PostSuspendCallback &&post_suspend_cb) | 
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| void  | ityr::ito::dag_prof_begin () | 
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| void  | ityr::ito::dag_prof_end () | 
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| void  | ityr::ito::dag_prof_print () | 
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