package rune
Automatic differentiation and JIT compilation for OCaml
Install
dune-project
Dependency
Authors
Maintainers
Sources
raven-1.0.0.alpha1.tbz
sha256=8e277ed56615d388bc69c4333e43d1acd112b5f2d5d352e2453aef223ff59867
sha512=369eda6df6b84b08f92c8957954d107058fb8d3d8374082e074b56f3a139351b3ae6e3a99f2d4a4a2930dd950fd609593467e502368a13ad6217b571382da28c
doc/src/rune.jit/rune_jit.ml.html
Source file rune_jit.ml
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299
(* rune_jit.ml *) module Ir = Ir module Dtype = Ir.Dtype module Var = Ir.Var module Backend_intf = Backend_intf type 'a kernel_artifact = { kernel_id : int; kernel_name : string; compiled : 'a; (* backend callable kernel *) arg_order : Var.t list; (* inputs first, then outputs *) global_dims : int array; (* [|gx; gy; gz|] from Scheduled.context *) local_dims : int array option; } type 'a exe_internal = { kernels : 'a kernel_artifact list; graph_meta : (Var.t, Ir.var_metadata) Hashtbl.t; graph_outputs : Var.t list; } type 'a executable = Executable of 'a exe_internal (* helper: monadic left-fold *) let rec result_fold_left f init = function | [] -> Ok init | x :: xs -> let ( let* ) = Result.bind in let* acc = f init x in result_fold_left f acc xs (* ───── LEGACY (optional) tinygrad-style path ───── *) let compile_legacy (type callable_kernel_native) ~(backend : (module Backend_intf.S with type callable_kernel_native = callable_kernel_native)) (graph : Ir.graph_t) = let ( let* ) = Result.bind in let module B = (val backend : Backend_intf.S with type callable_kernel_native = callable_kernel_native) in let specs = Grouper.group graph in let dev = B.Device_info.get_default () in let opts = B.Compiler.default_options dev in let compile_kernel (spec : Grouper.cluster_t) = let lowered = Lowerer.lower_kernel ~kernel_spec:spec ~original_graph_vars_metadata:graph.vars_metadata in let src = B.Renderer.render ~device_info:dev ~lowered_ir:lowered ~kernel_name:spec.name in let* art = B.Compiler.compile ~device_info:dev ~source_code:src ~options:opts in let* kern = B.Runtime.get_kernel ~artifact:art ~kernel_name:spec.name in Ok { kernel_id = -1; kernel_name = spec.name; compiled = kern; arg_order = spec.inputs @ spec.outputs; global_dims = [| 128; 1; 1 |]; local_dims = None; } in let* kernels = result_fold_left (fun acc spec -> let* k = compile_kernel spec in Ok (k :: acc)) [] specs in Ok (Executable { kernels = List.rev kernels; graph_meta = graph.vars_metadata; graph_outputs = graph.output_vars; }) (* ───── NEW: Scheduled IR pipeline ───── *) let compile (type callable_kernel_native) ~(backend : (module Backend_intf.S with type callable_kernel_native = callable_kernel_native)) (graph : Ir.graph_t) = let ( let* ) = Result.bind in let module B = (val backend : Backend_intf.S with type callable_kernel_native = callable_kernel_native) in (* 1) Build Scheduled IR *) let scheduled : Ir.Scheduled.graph_t = Schedule.build graph in let dev = B.Device_info.get_default () in let opts = B.Compiler.default_options dev in (* 2) Compile scheduled items (only kernels for now) *) let compile_item (it : Ir.Scheduled.schedule_item) = match it.operation with | Ir.Scheduled.S_Kernel { kernel_id; kernel_name; ops; inputs; outputs; context; _ } -> (* Bridge to existing Lowerer: synthesize a cluster_t *) let input_vars = List.map (fun (b : Ir.Scheduled.buffer_info) -> b.buf_var) inputs in let output_vars = List.map (fun (b : Ir.Scheduled.buffer_info) -> b.buf_var) outputs in let spec : Grouper.cluster_t = { name = kernel_name; nodes = ops; inputs = input_vars; outputs = output_vars; vars_metadata = scheduled.vars_metadata; } in let lowered = Lowerer.lower_kernel ~kernel_spec:spec ~original_graph_vars_metadata:scheduled.vars_metadata in let src = B.Renderer.render ~device_info:dev ~lowered_ir:lowered ~kernel_name in let* art = B.Compiler.compile ~device_info:dev ~source_code:src ~options:opts in let* kern = B.Runtime.get_kernel ~artifact:art ~kernel_name in Ok (Some { kernel_id; kernel_name; compiled = kern; arg_order = input_vars @ output_vars; global_dims = context.global_dims; local_dims = Some context.local_dims; }) | _ -> (* Skip non-kernel items (transfers/sync) until Multi is wired to runtime *) Ok None in let* built = result_fold_left (fun acc it -> let* kopt = compile_item it in Ok (kopt :: acc)) [] (Array.to_list scheduled.schedule_items) in let kernels = List.filter_map (fun x -> x) (List.rev built) in Ok (Executable { kernels; graph_meta = scheduled.vars_metadata; graph_outputs = graph.output_vars; }) (* ───── Execute ───── *) let execute (type device_buffer_native callable_kernel_native) ~(backend : (module Backend_intf.S with type device_buffer_native = device_buffer_native and type callable_kernel_native = callable_kernel_native)) (Executable exe) ~inputs ~(outputs : Var.t list) = let ( let* ) = Result.bind in let module B = (val backend) in let dev = B.Device_info.get_default () in let live : (Var.t, B.any_device_buffer) Hashtbl.t = Hashtbl.copy inputs in (* Allocate a buffer for var v if missing, using graph_meta *) let ensure_buffer (v : Var.t) : (B.any_device_buffer, string) result = match Hashtbl.find_opt live v with | Some b -> Ok b | None -> ( match Hashtbl.find_opt exe.graph_meta v with | None -> Error ("Missing metadata for " ^ Var.to_string v) | Some { dtype = Dtype.Any_Dtype dt; shape; _ } -> let bytes = let n = Array.fold_left ( * ) 1 (if Array.length shape = 0 then [| 1 |] else shape) in n * Dtype.sizeof_elt dt in let* buf = B.Runtime.allocate_buffer ~device_info:dev ~size_in_bytes:bytes ~dtype:dt in let any = Backend_intf.Any_Device_Buffer buf in Hashtbl.add live v any; Ok any) in let launch (k : _ kernel_artifact) = let* args = result_fold_left (fun acc v -> let* b = ensure_buffer v in Ok (b :: acc)) [] k.arg_order in B.Runtime.launch_kernel ~device_info:dev ~global_dims:k.global_dims ?local_dims:k.local_dims ~args:(List.rev args) k.compiled in let* () = result_fold_left (fun () k -> launch k) () exe.kernels in (* Collect requested outputs *) let result_tbl = Hashtbl.create (List.length outputs) in List.iter (fun v -> match Hashtbl.find_opt live v with | Some b -> Hashtbl.add result_tbl v b | None -> ( (* If a requested output didn’t exist yet, allocate an empty buffer so caller can fill *) match Hashtbl.find_opt exe.graph_meta v with | Some { dtype = Dtype.Any_Dtype dt; shape; _ } -> ( let bytes = let n = Array.fold_left ( * ) 1 (if Array.length shape = 0 then [| 1 |] else shape) in n * Dtype.sizeof_elt dt in match B.Runtime.allocate_buffer ~device_info:dev ~size_in_bytes:bytes ~dtype:dt with | Ok buf -> let any = Backend_intf.Any_Device_Buffer buf in Hashtbl.add result_tbl v any; Hashtbl.add live v any | Error _ -> ()) | None -> ())) outputs; Ok result_tbl (* ───── convenience wrappers ───── *) let allocate_buffer (type device_buffer_native) ~(backend : (module Backend_intf.S with type device_buffer_native = device_buffer_native)) ~size_in_bytes ~(dtype : 'a Dtype.t) = let module B = (val backend) in let device_info = B.Device_info.get_default () in B.Runtime.allocate_buffer ~device_info ~size_in_bytes ~dtype let copy_to_device (type device_buffer_native) ~(backend : (module Backend_intf.S with type device_buffer_native = device_buffer_native)) ~dest_buffer ~host = let module B = (val backend) in let bytes = Bigarray.Array1.size_in_bytes host in if bytes = 0 then Ok () else let ptr = Ctypes.(raw_address_of_ptr (to_voidp (bigarray_start array1 host))) in B.Runtime.copy_to_device ~dest_buffer ~host_data:ptr ~host_data_offset_bytes:0 ~copy_size_bytes:bytes let copy_from_device (type device_buffer_native) ~(backend : (module Backend_intf.S with type device_buffer_native = device_buffer_native)) ~src_buffer ~dest = let module B = (val backend) in let bytes = Bigarray.Array1.size_in_bytes dest in if bytes = 0 then Ok () else let ptr = Ctypes.(raw_address_of_ptr (to_voidp (bigarray_start array1 dest))) in B.Runtime.copy_from_device ~src_buffer ~host_dest_ptr:ptr ~device_data_offset_bytes:0 ~copy_size_bytes:bytes (* Internal modules exposed for testing *) module Internal = struct module Grouper = Grouper module Lowerer = Lowerer end
sectionYPositions = computeSectionYPositions($el), 10)"
x-init="setTimeout(() => sectionYPositions = computeSectionYPositions($el), 10)"
>