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MPI

Modern C++20 message passing interface wrapper.

Examples

• Initialization:

  mpi::environment environment;
  const auto& communicator = mpi::world_communicator;

• Transmitting basic types:

  std::int32_t data = 0;
  if (communicator.rank() == 0)
  {
    data = 42;
    communicator.send(data, 1);
  }
  if (communicator.rank() == 1)
  {
    communicator.receive(data, 0);
  }

• Transmitting a container of basic types:

  std::vector<std::int32_t> data_container(3);
  if (communicator.rank() == 0)
  {
    data_container = {1, 2, 3};
    communicator.send(data_container, 1);
  }
  if (communicator.rank() == 1)
  {
    communicator.receive(data_container, 0);
  }

• Transmitting user-defined aggregates:

  struct user_type
  {
    std::int32_t         id      ;
    std::array<float, 3> position;
  };

  user_type user_object;
  if (communicator.rank() == 0)
  {
    user_object = {42, {0.0f, 1.0f, 2.0f}};
    communicator.send(user_object, 1);
  }
  if (communicator.rank() == 1)
  {
    communicator.receive(user_object, 0);
  }

• Transmitting a container of user-defined aggregates:

  std::vector<user_type> user_object_container(2);
  if (communicator.rank() == 0)
  {
    user_object_container[0] = {42, {0.0f, 1.0f, 2.0f}};
    user_object_container[1] = {84, {3.0f, 4.0f, 5.0f}};
    communicator.send(user_object_container, 1);
  }
  if (communicator.rank() == 1)
  {
    communicator.receive(user_object_container, 0);
  }

• See the tests for more.

Usage Notes

• Define MPI_USE_EXCEPTIONS to check the return values of all viable functions against MPI_SUCCESS and throw an exception otherwise.
• Define MPI_USE_RELAXED_TRAITS to prevent the library from checking the types of aggregate elements and triggering static asserts for non-aggregates (useful for e.g. testing).
• Define MPI_USE_UNSUPPORTED to enable features that are within the standard but currently not supported by major implementations (e.g. MPI_T_BIND_MPI_SESSION).
• Compliant types (satisfying mpi::is_compliant) are types whose corresponding mpi::data_type can be automatically generated:
  • Arithmetic types (satisfying std::is_arithmetic), enumerations (satisfying std::is_enum), specializations of std::complex are compliant types.
  • C-style arrays, std::array, std::pair, std::tuple, and aggregate types (satisfying std::is_aggregate) consisting of other compliant types are also compliant types.
  • If your type is none of the above, you can specialize template <> struct mpi::type_traits<TYPE> { static data_type get_data_type() { return DATA_TYPE; } }; manually.
• The MPI functions accepting buffers may be used with:
  • Compliant types.
  • Contiguous sequential containers (i.e. std::string, std::span, std::valarray, std::vector<!bool>) of compliant types.
• Extension functions (starting with MPIX) are not included as they are often implementation-specific. You can nevertheless use them with the wrapper via the native handle getters.

Design Notes

• Constructors:
  • Copy constructors are deleted unless MPI provides duplication functions (ending with _dup) for the object.
  • Move constructors are available whenever possible.
  • The object wrappers have two types of constructors:
    • Managed constructors: Construct a new MPI object, and be responsible for its destruction.
    • Unmanaged constructors: Accept an existing MPI object, and not be responsible for its destruction.
• Structures:
  • Structs are for POD data types. They may only contain member variables, constructors, destructors and assignment operators.
• Statics:
  • Namespace functions are preferred over static member functions whenever possible.
• Reflection:
  • The data type for aggregates are created automatically through reflection.
  • Survey of reflection libraries:

    Library	Built	Extra step	Manual	Dependencies
    https://github.com/rttrorg/rttr	True	False	True	False
    https://github.com/boostorg/pfr	False	False	False	False
    https://github.com/apolukhin/pfr_non_boost	False	False	False	False
    https://github.com/felixguendling/cista	False	False	False	False
    https://github.com/veselink1/refl-cpp	False	False	True	False
    https://github.com/AustinBrunkhorst/CPP-Reflection	True	True	True	True
    https://github.com/billyquith/ponder	True	False	True	False
    https://github.com/skypjack/meta	False	False	True	False
    https://github.com/Ubpa/USRefl	False	False	True	False
    https://github.com/Ubpa/UDRefl	True	False	True	False
    https://github.com/garbageslam/visit_struct	False	False	True	False
    https://github.com/chakaz/reflang	True	True	False	True
    https://github.com/Manu343726/tinyrefl	False	True	False	False
    https://github.com/Manu343726/siplasplas	True	True	False	False
    https://github.com/preshing/FlexibleReflection	False	False	True	False
    https://github.com/Celtoys/clReflect	True	True	True	False
    https://github.com/Leandros/metareflect	False	True	True	True
    https://github.com/Cylix/Reflex	False	False	True	True
    https://github.com/boostorg/describe	False	False	True	True

  • Decided on PFR after watching https://www.youtube.com/watch?v=abdeAew3gmQ, specifically https://github.com/apolukhin/pfr_non_boost without the boost namespace.
  • Limitations:
    • The type must be an aggregate (satisfy std::is_aggregate<type>):
      • No user-declared or inherited constructors.
      • No private or protected direct non-static data members.
      • No virtual functions.
      • No virtual, private or protected base classes.
    • Additionally:
      • No const fields.
      • No references.
      • Static data members are ignored.
    • See https://www.boost.org/doc/libs/1_76_0/doc/html/boost_pfr/limitations_and_configuration.html for further detail.
• Constants:
  • Several MPI constants are unused:
    • MPI_STATUS_IGNORE : Stati are return values and this would require void overloads for every function.
    • MPI_STATUSES_IGNORE: Stati are return values and this would require void overloads for every function.
    • MPI_ARGVS_NULL : This would require a scan over std::vector<spawn_info>::arguments() to see if they all are empty.
    • MPI_WEIGHTS_EMPTY : Prefer an empty container instead.
    • MPI_BOTTOM : Prefer nullptr instead.
    • MPI_ROOT : Unused in default arguments as intercommunicators are rarer than intracommunicators. Can nevertheless be passed to functions.
    • MPI_PROC_NULL : Unused in default arguments as intercommunicators are rarer than intracommunicators. Can nevertheless be passed to functions.
• Versioning:
  • The major and minor version numbers correspond to the supported MPI version, whereas the patch number is specific to the wrapper.

Coverage (list from https://www.open-mpi.org/doc/v4.1/)

• [x] Constants
• [x] MPI_Abort
• [x] MPI_Accumulate
• [x] MPI_Add_error_class
• [x] MPI_Add_error_code
• [x] MPI_Add_error_string
• [x] ~~MPI_Address~~
• [x] MPI_Aint_add
• [x] MPI_Aint_diff
• [x] MPI_Allgather
• [x] MPI_Allgatherv
• [x] MPI_Alloc_mem
• [x] MPI_Allreduce
• [x] MPI_Alltoall
• [x] MPI_Alltoallv
• [x] MPI_Alltoallw
• [x] ~~MPI_Attr_delete~~
• [x] ~~MPI_Attr_get~~
• [x] ~~MPI_Attr_put~~
• [x] MPI_Barrier
• [x] MPI_Bcast
• [x] MPI_Bsend
• [x] MPI_Bsend_init
• [x] MPI_Buffer_attach
• [x] MPI_Buffer_detach
• [x] MPI_Cancel
• [x] MPI_Cart_coords
• [x] MPI_Cart_create
• [x] MPI_Cart_get
• [x] MPI_Cart_map
• [x] MPI_Cart_rank
• [x] MPI_Cart_shift
• [x] MPI_Cart_sub
• [x] MPI_Cartdim_get
• [x] MPI_Close_port
• [x] MPI_Comm_accept
• [x] ~~MPI_Comm_c2f~~
• [x] MPI_Comm_call_errhandler
• [x] MPI_Comm_compare
• [x] MPI_Comm_connect
• [x] MPI_Comm_create
• [x] MPI_Comm_create_errhandler
• [x] MPI_Comm_create_group
• [x] MPI_Comm_create_keyval
• [x] MPI_Comm_delete_attr
• [x] MPI_Comm_disconnect
• [x] MPI_Comm_dup
• [x] MPI_Comm_dup_with_info
• [x] ~~MPI_Comm_f2c~~
• [x] MPI_Comm_free
• [x] MPI_Comm_free_keyval
• [x] MPI_Comm_get_attr
• [x] MPI_Comm_get_errhandler
• [x] MPI_Comm_get_info
• [x] MPI_Comm_get_name
• [x] MPI_Comm_get_parent
• [x] MPI_Comm_group
• [x] MPI_Comm_idup
• [x] MPI_Comm_join
• [x] MPI_Comm_rank
• [x] MPI_Comm_remote_group
• [x] MPI_Comm_remote_size
• [x] MPI_Comm_set_attr
• [x] MPI_Comm_set_errhandler
• [x] MPI_Comm_set_info
• [x] MPI_Comm_set_name
• [x] MPI_Comm_size
• [x] MPI_Comm_spawn
• [x] MPI_Comm_spawn_multiple
• [x] MPI_Comm_split
• [x] MPI_Comm_split_type
• [x] MPI_Comm_test_inter
• [x] MPI_Compare_and_swap
• [x] MPI_Dims_create
• [x] MPI_Dist_graph_create
• [x] MPI_Dist_graph_create_adjacent
• [x] MPI_Dist_graph_neighbors
• [x] MPI_Dist_graph_neighbors_count
• [x] ~MPI_Errhandler_create~
• [x] MPI_Errhandler_free
• [x] ~~MPI_Errhandler_get~~
• [x] ~~MPI_Errhandler_set~~
• [x] MPI_Error_class
• [x] MPI_Error_string
• [x] MPI_Exscan
• [x] MPI_Fetch_and_op
• [x] ~~MPI_File_c2f~~
• [x] MPI_File_call_errhandler
• [x] MPI_File_close
• [x] MPI_File_create_errhandler
• [x] MPI_File_delete
• [x] ~~MPI_File_f2c~~
• [x] MPI_File_get_amode
• [x] MPI_File_get_atomicity
• [x] MPI_File_get_byte_offset
• [x] MPI_File_get_errhandler
• [x] MPI_File_get_group
• [x] MPI_File_get_info
• [x] MPI_File_get_position
• [x] MPI_File_get_position_shared
• [x] MPI_File_get_size
• [x] MPI_File_get_type_extent
• [x] MPI_File_get_view
• [x] MPI_File_iread
• [x] MPI_File_iread_all
• [x] MPI_File_iread_at
• [x] MPI_File_iread_at_all
• [x] MPI_File_iread_shared
• [x] MPI_File_iwrite
• [x] MPI_File_iwrite_all
• [x] MPI_File_iwrite_at
• [x] MPI_File_iwrite_at_all
• [x] MPI_File_iwrite_shared
• [x] MPI_File_open
• [x] MPI_File_preallocate
• [x] MPI_File_read
• [x] MPI_File_read_all
• [x] MPI_File_read_all_begin
• [x] MPI_File_read_all_end
• [x] MPI_File_read_at
• [x] MPI_File_read_at_all
• [x] MPI_File_read_at_all_begin
• [x] MPI_File_read_at_all_end
• [x] MPI_File_read_ordered
• [x] MPI_File_read_ordered_begin
• [x] MPI_File_read_ordered_end
• [x] MPI_File_read_shared
• [x] MPI_File_seek
• [x] MPI_File_seek_shared
• [x] MPI_File_set_atomicity
• [x] MPI_File_set_errhandler
• [x] MPI_File_set_info
• [x] MPI_File_set_size
• [x] MPI_File_set_view
• [x] MPI_File_sync
• [x] MPI_File_write
• [x] MPI_File_write_all
• [x] MPI_File_write_all_begin
• [x] MPI_File_write_all_end
• [x] MPI_File_write_at
• [x] MPI_File_write_at_all
• [x] MPI_File_write_at_all_begin
• [x] MPI_File_write_at_all_end
• [x] MPI_File_write_ordered
• [x] MPI_File_write_ordered_begin
• [x] MPI_File_write_ordered_end
• [x] MPI_File_write_shared
• [x] MPI_Finalize
• [x] MPI_Finalized
• [x] MPI_Free_mem
• [x] MPI_Gather
• [x] MPI_Gatherv
• [x] MPI_Get
• [x] MPI_Get_accumulate
• [x] MPI_Get_address
• [x] MPI_Get_count
• [x] MPI_Get_elements
• [x] MPI_Get_elements_x
• [x] MPI_Get_library_version
• [x] MPI_Get_processor_name
• [x] MPI_Get_version
• [x] MPI_Graph_create
• [x] MPI_Graph_get
• [x] MPI_Graph_map
• [x] MPI_Graph_neighbors
• [x] MPI_Graph_neighbors_count
• [x] MPI_Graphdims_get
• [x] MPI_Grequest_complete
• [x] MPI_Grequest_start
• [x] ~~MPI_Group_c2f~~
• [x] MPI_Group_compare
• [x] MPI_Group_difference
• [x] MPI_Group_excl
• [x] ~~MPI_Group_f2c~~
• [x] MPI_Group_free
• [x] MPI_Group_incl
• [x] MPI_Group_intersection
• [x] MPI_Group_range_excl
• [x] MPI_Group_range_incl
• [x] MPI_Group_rank
• [x] MPI_Group_size
• [x] MPI_Group_translate_ranks
• [x] MPI_Group_union
• [x] MPI_Iallgather
• [x] MPI_Iallgatherv
• [x] MPI_Iallreduce
• [x] MPI_Ialltoall
• [x] MPI_Ialltoallv
• [x] MPI_Ialltoallw
• [x] MPI_Ibarrier
• [x] MPI_Ibcast
• [x] MPI_Ibsend
• [x] MPI_Iexscan
• [x] MPI_Igather
• [x] MPI_Igatherv
• [x] MPI_Improbe
• [x] MPI_Imrecv
• [x] MPI_Ineighbor_allgather
• [x] MPI_Ineighbor_allgatherv
• [x] MPI_Ineighbor_alltoall
• [x] MPI_Ineighbor_alltoallv
• [x] MPI_Ineighbor_alltoallw
• [x] ~~MPI_Info_c2f~~
• [x] MPI_Info_create
• [x] MPI_Info_delete
• [x] MPI_Info_dup
• [x] MPI_Info_env
• [x] ~~MPI_Info_f2c~~
• [x] MPI_Info_free
• [x] MPI_Info_get
• [x] MPI_Info_get_nkeys
• [x] MPI_Info_get_nthkey
• [x] MPI_Info_get_valuelen
• [x] MPI_Info_set
• [x] MPI_Init
• [x] MPI_Init_thread
• [x] MPI_Initialized
• [x] MPI_Intercomm_create
• [x] MPI_Intercomm_merge
• [x] MPI_Iprobe
• [x] MPI_Irecv
• [x] MPI_Ireduce
• [x] MPI_Ireduce_scatter
• [x] MPI_Ireduce_scatter_block
• [x] MPI_Irsend
• [x] MPI_Is_thread_main
• [x] MPI_Iscan
• [x] MPI_Iscatter
• [x] MPI_Iscatterv
• [x] MPI_Isend
• [x] MPI_Issend
• [x] ~~MPI_Keyval_create~~
• [x] ~~MPI_Keyval_free~~
• [x] MPI_Lookup_name
• [x] ~~MPI_Message_c2f~~
• [x] ~~MPI_Message_f2c~~
• [x] MPI_Mprobe
• [x] MPI_Mrecv
• [x] MPI_Neighbor_allgather
• [x] MPI_Neighbor_allgatherv
• [x] MPI_Neighbor_alltoall
• [x] MPI_Neighbor_alltoallv
• [x] MPI_Neighbor_alltoallw
• [x] ~~MPI_Op_c2f~~
• [x] MPI_Op_commutative
• [x] MPI_Op_create
• [x] ~~MPI_Op_f2c~~
• [x] MPI_Op_free
• [x] MPI_Open_port
• [x] MPI_Pack
• [x] MPI_Pack_external
• [x] MPI_Pack_external_size
• [x] MPI_Pack_size
• [x] MPI_Pcontrol
• [x] MPI_Probe
• [x] MPI_Publish_name
• [x] MPI_Put
• [x] MPI_Query_thread
• [x] MPI_Raccumulate
• [x] MPI_Recv
• [x] MPI_Recv_init
• [x] MPI_Reduce
• [x] MPI_Reduce_local
• [x] MPI_Reduce_scatter
• [x] MPI_Reduce_scatter_block
• [x] MPI_Register_datarep
• [x] ~~MPI_Request_c2f~~
• [x] ~~MPI_Request_f2c~~
• [x] MPI_Request_free
• [x] MPI_Request_get_status
• [x] MPI_Rget
• [x] MPI_Rget_accumulate
• [x] MPI_Rput
• [x] MPI_Rsend
• [x] MPI_Rsend_init
• [x] MPI_Scan
• [x] MPI_Scatter
• [x] MPI_Scatterv
• [x] MPI_Send
• [x] MPI_Send_init
• [x] MPI_Sendrecv
• [x] MPI_Sendrecv_replace
• [x] ~~MPI_Sizeof~~
• [x] MPI_Ssend
• [x] MPI_Ssend_init
• [x] MPI_Start
• [x] MPI_Startall
• [x] ~~MPI_Status_c2f~~
• [x] ~~MPI_Status_f2c~~
• [x] MPI_Status_set_cancelled
• [x] MPI_Status_set_elements
• [x] MPI_Status_set_elements_x
• [x] MPI_T_category_changed
• [x] MPI_T_category_get_categories
• [x] MPI_T_category_get_cvars
• [x] MPI_T_category_get_info
• [x] MPI_T_category_get_num
• [x] MPI_T_category_get_pvars
• [x] MPI_T_cvar_get_info
• [x] MPI_T_cvar_get_num
• [x] MPI_T_cvar_handle_alloc
• [x] MPI_T_cvar_handle_free
• [x] MPI_T_cvar_read
• [x] MPI_T_cvar_write
• [x] MPI_T_enum_get_info
• [x] MPI_T_enum_get_item
• [x] MPI_T_finalize
• [x] MPI_T_init_thread
• [x] MPI_T_pvar_get_info
• [x] MPI_T_pvar_get_num
• [x] MPI_T_pvar_handle_alloc
• [x] MPI_T_pvar_handle_free
• [x] MPI_T_pvar_read
• [x] MPI_T_pvar_readreset
• [x] MPI_T_pvar_reset
• [x] MPI_T_pvar_session_create
• [x] MPI_T_pvar_session_free
• [x] MPI_T_pvar_start
• [x] MPI_T_pvar_stop
• [x] MPI_T_pvar_write
• [x] MPI_Test
• [x] MPI_Test_cancelled
• [x] MPI_Testall
• [x] MPI_Testany
• [x] MPI_Testsome
• [x] MPI_Topo_test
• [x] ~~MPI_Type_c2f~~
• [x] MPI_Type_commit
• [x] MPI_Type_contiguous
• [x] MPI_Type_create_darray
• [x] ~~MPI_Type_create_f90_complex~~
• [x] ~~MPI_Type_create_f90_integer~~
• [x] ~~MPI_Type_create_f90_real~~
• [x] MPI_Type_create_hindexed
• [x] MPI_Type_create_hindexed_block
• [x] MPI_Type_create_hvector
• [x] MPI_Type_create_indexed_block
• [x] MPI_Type_create_keyval
• [x] MPI_Type_create_resized
• [x] MPI_Type_create_struct
• [x] MPI_Type_create_subarray
• [x] MPI_Type_delete_attr
• [x] MPI_Type_dup
• [x] ~~MPI_Type_extent~~
• [x] ~~MPI_Type_f2c~~
• [x] MPI_Type_free
• [x] MPI_Type_free_keyval
• [x] MPI_Type_get_attr
• [x] MPI_Type_get_contents
• [x] MPI_Type_get_envelope
• [x] MPI_Type_get_extent
• [x] MPI_Type_get_extent_x
• [x] MPI_Type_get_name
• [x] MPI_Type_get_true_extent
• [x] MPI_Type_get_true_extent_x
• [x] ~~MPI_Type_hindexed~~
• [x] ~~MPI_Type_hvector~~
• [x] MPI_Type_indexed
• [x] ~~MPI_Type_lb~~
• [x] MPI_Type_match_size
• [x] MPI_Type_set_attr
• [x] MPI_Type_set_name
• [x] MPI_Type_size
• [x] MPI_Type_size_x
• [x] ~~MPI_Type_struct~~
• [x] ~~MPI_Type_ub~~
• [x] MPI_Type_vector
• [x] MPI_Unpack
• [x] MPI_Unpack_external
• [x] MPI_Unpublish_name
• [x] MPI_Wait
• [x] MPI_Waitall
• [x] MPI_Waitany
• [x] MPI_Waitsome
• [x] MPI_Win_allocate
• [x] MPI_Win_allocate_shared
• [x] MPI_Win_attach
• [x] ~~MPI_Win_c2f~~
• [x] MPI_Win_call_errhandler
• [x] MPI_Win_complete
• [x] MPI_Win_create
• [x] MPI_Win_create_dynamic
• [x] MPI_Win_create_errhandler
• [x] MPI_Win_create_keyval
• [x] MPI_Win_delete_attr
• [x] MPI_Win_detach
• [x] ~~MPI_Win_f2c~~
• [x] MPI_Win_fence
• [x] MPI_Win_flush
• [x] MPI_Win_flush_all
• [x] MPI_Win_flush_local
• [x] MPI_Win_flush_local_all
• [x] MPI_Win_free
• [x] MPI_Win_free_keyval
• [x] MPI_Win_get_attr
• [x] MPI_Win_get_errhandler
• [x] MPI_Win_get_group
• [x] MPI_Win_get_info
• [x] MPI_Win_get_name
• [x] MPI_Win_lock
• [x] MPI_Win_lock_all
• [x] MPI_Win_post
• [x] MPI_Win_set_attr
• [x] MPI_Win_set_errhandler
• [x] MPI_Win_set_info
• [x] MPI_Win_set_name
• [x] MPI_Win_shared_query
• [x] MPI_Win_start
• [x] MPI_Win_sync
• [x] MPI_Win_test
• [x] MPI_Win_unlock
• [x] MPI_Win_unlock_all
• [x] MPI_Win_wait
• [x] MPI_Wtick
• [x] MPI_Wtime
• [x] MPI_Allgather_init
• [x] MPI_Allgatherv_init
• [x] MPI_Allreduce_init
• [x] MPI_Alltoall_init
• [x] MPI_Alltoallv_init
• [x] MPI_Alltoallw_init
• [x] MPI_Barrier_init
• [x] MPI_Bcast_init
• [x] MPI_Comm_create_from_group
• [x] MPI_Comm_idup_with_info
• [x] MPI_Exscan_init
• [x] MPI_Gather_init
• [x] MPI_Gatherv_init
• [x] MPI_Group_from_session_pset
• [x] MPI_Info_create_env
• [x] MPI_Info_get_string
• [x] MPI_Intercomm_create_from_groups
• [x] MPI_Isendrecv
• [x] MPI_Isendrecv_replace
• [x] MPI_Neighbor_allgather_init
• [x] MPI_Neighbor_allgatherv_init
• [x] MPI_Neighbor_alltoall_init
• [x] MPI_Neighbor_alltoallv_init
• [x] MPI_Neighbor_alltoallw_init
• [x] MPI_Parrived
• [x] MPI_Pready
• [x] MPI_Pready_list
• [x] MPI_Pready_range
• [x] MPI_Precv_init
• [x] MPI_Psend_init
• [x] MPI_Reduce_init
• [x] MPI_Reduce_scatter_block_init
• [x] MPI_Reduce_scatter_init
• [x] MPI_Scan_init
• [x] MPI_Scatter_init
• [x] MPI_Scatterv_init
• [x] MPI_Session_call_errhandler
• [x] MPI_Session_create_errhandler
• [x] ~~MPI_Session_c2f~~
• [x] ~~MPI_Session_f2c~~
• [x] MPI_Session_finalize
• [x] MPI_Session_get_errhandler
• [x] MPI_Session_get_info
• [x] MPI_Session_get_nth_pset
• [x] MPI_Session_get_num_psets
• [x] MPI_Session_get_pset_info
• [x] MPI_Session_init
• [x] MPI_Session_set_errhandler
• [x] MPI_T_category_get_events
• [x] MPI_T_category_get_index
• [x] MPI_T_category_get_num_events
• [x] MPI_T_cvar_get_index
• [x] MPI_T_pvar_get_index
• [x] MPI_T_event_callback_get_info
• [x] MPI_T_event_callback_set_info
• [x] MPI_T_event_copy
• [x] MPI_T_event_get_num
• [x] MPI_T_event_get_info
• [x] MPI_T_event_get_index
• [x] MPI_T_event_get_source
• [x] MPI_T_event_get_timestamp
• [x] MPI_T_event_handle_alloc
• [x] MPI_T_event_handle_free
• [x] MPI_T_event_handle_get_info
• [x] MPI_T_event_handle_set_info
• [x] MPI_T_event_read
• [x] MPI_T_event_register_callback
• [x] MPI_T_event_set_dropped_handler
• [x] MPI_T_source_get_info
• [x] MPI_T_source_get_num
• [x] MPI_T_source_get_timestamp

Future Work

• See https://github.com/acdemiralp/mpi/projects/1