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87 lines
2.7 KiB
OCaml
87 lines
2.7 KiB
OCaml
(** Module for handling distributed parallelism *)
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val size : int
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(** Number of distributed processes. *)
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val rank : Mpi.rank
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(** Rank of the current distributed processe. *)
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val master : bool
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(** True if [rank = 0]. *)
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val barrier : unit -> unit
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(** Wait for all processes to reach this point. *)
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(** {5 Vector operations} *)
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module Vec : sig
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type t =
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{
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global_first : int ; (* Lower index in the global array *)
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global_last : int ; (* Higher index in the global array *)
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local_first : int ; (* Lower index in the local array *)
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local_last : int ; (* Higher index in the local array *)
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data : Lacaml.D.vec ; (* Lacaml vector containing the data *)
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}
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val pp : Format.formatter -> t -> unit
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(** {6 Creation/conversion of vectors and dimension accessor} *)
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val create : int -> t
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(** [create n] @return a distributed vector with [n] rows (not initialized). *)
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val make : int -> float -> t
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(** [make n x] @return a distributed vector with [n] rows initialized with value [x]. *)
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val make0 : int -> t
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(** [make0 n x] @return a distributed vector with [n] rows initialized with the zero
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element. *)
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val init : int -> (int -> float) -> t
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(** [init n f] @return a distributed vector containing [n] elements, where
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each element at position [i] is initialized by the result of calling [f i]. *)
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val of_array : float array -> t
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(** [of_array ar] @return a distributed vector initialized from array [ar]. *)
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val to_array : t -> float array
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(** [to_array v] @return an array initialized from vector [v]. *)
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val of_vec : Lacaml.D.vec -> t
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(** [of_vec vec] @return a distributed vector initialized from Lacaml vector [vec]. *)
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val to_vec : t -> Lacaml.D.vec
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(** [to_vec v] @return a Lacaml vector initialized from vector [v]. *)
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end
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(*
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module Mat : sig
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type t =
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{
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global_first_row : int ; (* Lower row index in the global array *)
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global_last_row : int ; (* Higher row index in the global array *)
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global_first_col : int ; (* Lower column index in the global array *)
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global_last_col : int ; (* Higher column index in the global array *)
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local_first_row : int ; (* Lower row index in the local array *)
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local_last_row : int ; (* Higher row index in the local array *)
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local_first_col : int ; (* Lower column index in the local array *)
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local_last_col : int ; (* Higher column index in the local array *)
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data : Lacaml.D.mat ; (* Lacaml matrix containing the data *)
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}
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end
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val gemm : Mat.t -> Mat.t -> Mat.t
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(* Distributed matrix-matrix product. The result is a distributed matrix. *)
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val dot : Vec.t -> Vec.t-> float
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(* Dot product between distributed vectors. *)
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*)
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