package owl-base

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Source file owl_computation_cpu_engine.ml

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# 1 "src/base/compute/owl_computation_cpu_engine.ml"
(*
 * OWL - OCaml Scientific and Engineering Computing
 * Copyright (c) 2016-2019 Liang Wang <liang.wang@cl.cam.ac.uk>
 *)

open Owl_types


(* Functor of making a CPU-based engine to execute computation graphs. *)

module Make_Nested
  (Graph : Owl_computation_graph_sig.Sig)
  = struct

  module Graph = Graph

  open Graph.Optimiser.Operator.Symbol

  (* module aliases *)

  module CG_Init = Owl_computation_cpu_init.Make (Graph)

  module CG_Eval = Owl_computation_cpu_eval.Make (Graph)


  (* core interface *)

  (* ! Make sure the order of evaluation of init and eval is always the same. *)
  let eval_gen nodes =
    CG_Init._init_terms nodes;
    CG_Eval._eval_terms nodes


  let eval_elt xs = Array.map elt_to_node xs |> eval_gen


  let eval_arr xs = Array.map arr_to_node xs |> eval_gen


  let eval_graph graph =
    Graph.invalidate_rvs graph;
    Graph.get_outputs graph |> eval_gen


end


(* Functor of making CPU-based engine with unrolled module hierarchy *)

module Make
  (A : Ndarray_Mutable)
  = struct

  include
    Owl_computation_engine.Flatten (
      Make_Nested (
        Owl_computation_engine.Make_Graph (
          Owl_computation_cpu_device.Make (A)
        )
      )
    )

end


(* Make functor ends *)