# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. from __future__ import print_function from functools import reduce import collections import math import os import warnings import logging import six import paddle.fluid as fluid from paddle.fluid import core from paddle.fluid.core import CommContext import paddle.fluid.framework as framework import paddle.distributed.fleet as fleet #logging.basicConfig( # format='%(levelname)s - %(asctime)s - %(pathname)s: %(lineno)s - %(message)s', level=logging.INFO) #logger = logging.getLogger(__name__) OP_NAME_SCOPE = "op_namescope" CLIP_OP_NAME_SCOPE = "gradient_clip" STEP_COUNTER = "@PS_STEP_COUNTER@" LEARNING_RATE_DECAY_COUNTER = "@LR_DECAY_COUNTER@" OP_ROLE_VAR_ATTR_NAME = core.op_proto_and_checker_maker.kOpRoleVarAttrName() RPC_OP_ROLE_ATTR_NAME = core.op_proto_and_checker_maker.kOpRoleAttrName() RPC_OP_ROLE_ATTR_VALUE = core.op_proto_and_checker_maker.OpRole.RPC op_role_attr_name = core.op_proto_and_checker_maker.kOpRoleAttrName() LR_SCHED_OP_ROLE_ATTR_VALUE = core.op_proto_and_checker_maker.OpRole.LRSched OPT_OP_ROLE_ATTR_VALUE = core.op_proto_and_checker_maker.OpRole.Optimize backward = core.op_proto_and_checker_maker.OpRole.Backward DEVICE_LIST = ["cpu", "gpu", "xpu"] COMMUNICATE_OPS_TYPE = ["send", "recv", "fetch_barrier", "send_barrier"] SPARSE_OP_LIST = ["lookup_table", "lookup_table_v2"] SPARSE_OP_TYPE_DICT = {"lookup_table": "W", "lookup_table_v2": "W"} SPARSE_GRAD_OP_TYPE_DICT = { "lookup_table_grad": "W", "lookup_table_v2_grad": "W" } DEFAULT_DEVICE = 'cpu' def logger_config(log_path, logging_name): logger = logging.getLogger(logging_name) logger.setLevel(level=logging.DEBUG) handler = logging.FileHandler(log_path, mode='a', encoding='UTF-8') handler.setLevel(logging.INFO) formatter = logging.Formatter( '%(levelname)s - %(asctime)s - %(pathname)s: %(lineno)s - %(message)s') handler.setFormatter(formatter) console = logging.StreamHandler() console.setLevel(logging.DEBUG) logger.addHandler(handler) logger.addHandler(console) return logger logger = logger_config(log_path='/ps_log', logging_name='ps_log') class DistributedMode: SYNC = 0 ASYNC = 1 HALF_ASYNC = 2 GEO = 3 FL = 4 class TrainerRuntimeConfig(object): def __init__(self, valid_strategy): self.mode = None k_steps = valid_strategy.a_sync_configs["k_steps"] logger.info("ps mode in strategy: {}, {}".format( valid_strategy.a_sync, valid_strategy.a_sync_configs["k_steps"])) if not valid_strategy.a_sync and k_steps == 0: self.mode = DistributedMode.SYNC if valid_strategy.a_sync and k_steps == 0: self.mode = DistributedMode.ASYNC if valid_strategy.a_sync and k_steps > 0: self.mode = DistributedMode.GEO num_threads = os.getenv("CPU_NUM", "1") self.runtime_configs = {} self.runtime_configs['communicator_max_merge_var_num'] = os.getenv( "FLAGS_communicator_max_merge_var_num", num_threads) self.runtime_configs['communicator_send_queue_size'] = os.getenv( "FLAGS_communicator_send_queue_size", num_threads) self.runtime_configs[ 'communicator_independent_recv_thread'] = os.getenv( "FLAGS_communicator_independent_recv_thread", "1") self.runtime_configs[ 'communicator_min_send_grad_num_before_recv'] = os.getenv( "FLAGS_communicator_min_send_grad_num_before_recv", num_threads) self.runtime_configs['communicator_thread_pool_size'] = os.getenv( "FLAGS_communicator_thread_pool_size", "5") self.runtime_configs['communicator_send_wait_times'] = os.getenv( "FLAGS_communicator_send_wait_times", "5") self.runtime_configs['communicator_is_sgd_optimizer'] = os.getenv( "FLAGS_communicator_is_sgd_optimizer", "1") def get_lr_ops(program): lr_ops = [] for index, op in enumerate(program.global_block().ops): role_id = int(op.attr(RPC_OP_ROLE_ATTR_NAME)) if role_id == int(LR_SCHED_OP_ROLE_ATTR_VALUE) or \ role_id == int(LR_SCHED_OP_ROLE_ATTR_VALUE) | \ int(OPT_OP_ROLE_ATTR_VALUE): lr_ops.append(op) return lr_ops def get_optimize_ops(_program): block = _program.global_block() opt_ops = [] for op in block.ops: if _is_opt_role_op(op): # delete clip op from opt_ops when run in Parameter Server mode if OP_NAME_SCOPE in op.all_attrs() \ and CLIP_OP_NAME_SCOPE in op.attr(OP_NAME_SCOPE): op._set_attr( "op_role", int(core.op_proto_and_checker_maker.OpRole.Backward)) continue opt_ops.append(op) return opt_ops def get_dist_env(): trainer_id = int(os.getenv('PADDLE_TRAINER_ID', '0')) trainer_endpoints = '' current_endpoint = '' num_trainers = 0 if os.getenv('PADDLE_TRAINER_ENDPOINTS'): trainer_endpoints = os.getenv('PADDLE_TRAINER_ENDPOINTS') current_endpoint = trainer_endpoints.split(',')[trainer_id] num_trainers = len(trainer_endpoints.split(',')) return { 'trainer_id': trainer_id, 'num_trainers': num_trainers, 'current_endpoint': current_endpoint, 'trainer_endpoints': trainer_endpoints } def get_role_id(role_maker): try: return role_maker._role_id() except Exception: return role_maker.role_id() def get_ps_endpoint(role_maker): try: return role_maker._get_pserver_endpoints()[get_role_id(role_maker)] except Exception: return role_maker.get_pserver_endpoints()[get_role_id(role_maker)] def get_heter_worker_endpoint(role_maker): try: return role_maker._get_heter_worker_endpoint() except Exception: return role_maker.get_heter_worker_endpoint() def get_trainer_endpoint(role_maker): try: return role_maker._get_trainer_endpoint() except Exception: return role_maker.get_trainer_endpoint() def get_previous_stage_trainers(role_maker): try: return role_maker._get_previous_trainers() except Exception: return role_maker.get_previous_trainers() def is_distributed_sparse_op(op): if op.type in SPARSE_OP_LIST and op.attr('is_distributed') is True: return True if op.type == "distributed_lookup_table" and op.attr( 'is_distributed') is True: return True return False def get_sparse_tablename(op): return op.input("W")[0] def is_sparse_op(op): if op.type in SPARSE_OP_LIST and op.attr('is_sparse') is True and op.attr( 'is_distributed') is False: return True if op.type == "distributed_lookup_table" and op.attr( 'is_distributed') is False: return True return False def get_sparse_tablenames(program, is_distributed): tablenames = set() if is_distributed: for op in program.global_block().ops: if is_distributed_sparse_op(op): tablenames.add(get_sparse_tablename(op)) else: for op in program.global_block().ops: if is_sparse_op(op): tablenames.add(get_sparse_tablename(op)) return list(tablenames) def get_ps_endpoints(role_maker): try: return role_maker._get_pserver_endpoints() except Exception: return role_maker.get_pserver_endpoints() def get_trainers(role_maker): try: return role_maker._worker_num() except Exception: return role_maker.worker_num() def get_dense_send_context(context, send_ctx, idx, merged_dense_pairs, trainer_id, split_dense_table=False): if len(merged_dense_pairs) < 1: return idx if not split_dense_table: origin_varnames = [] var_numel = 0 for merged in merged_dense_pairs: grad = merged[1] origin_varnames.append(grad.merged_var.name) var = context['origin_main_program'].global_block().vars[ grad.merged_var.name] var_numel += reduce(lambda x, y: x * y, var.shape) grad_name = "Dense@Grad" trainer_id = get_role_id(context['role_maker']) aggregate = True dense_ctx = CommContext(grad_name, [grad_name], ["127.0.0.1:6071"], [var_numel], origin_varnames, trainer_id, aggregate, False, False, idx, False) send_ctx[grad_name] = dense_ctx idx += 1 else: for merged in merged_dense_pairs: grad = merged[1] origin_varname = grad.merged_var.name var = context['origin_main_program'].global_block().vars[ origin_varname] var_numel = reduce(lambda x, y: x * y, var.shape) grad_name = origin_varname aggregate = True dense_ctx = CommContext(grad_name, [grad_name], ["127.0.0.1:6071"], [var_numel], [origin_varname], trainer_id, aggregate, False, False, idx, False) send_ctx[grad_name] = dense_ctx idx += 1 return idx def get_geo_trainer_send_context(context): if context['ps_mode'] != DistributedMode.GEO: raise ValueError("ps mode: {} not matched {}", format(ps_mode, "get_geo_trainer_send_context")) send_ctx = {} trainer_id = get_role_id(context['role_maker']) idx = 0 distibuted_varnames = get_sparse_tablenames(context['origin_main_program'], True) for merged in context['merged_sparse_pairs']: param, grad = merged grad_name = grad.merged_var.name param_name = param.merged_var.name is_distributed = True if param_name in distibuted_varnames else False var = context['origin_main_program'].global_block().vars[ grad.merged_var.name] var_numel = reduce(lambda x, y: x * y, var.shape[1:]) sparse_ctx = CommContext(grad_name, [grad_name], ["127.0.0.1:6071"], [var_numel], [grad_name], trainer_id, True, True, is_distributed, idx, False) idx += 1 send_ctx[sparse_ctx.var_name()] = sparse_ctx if len(send_ctx) == 0: raise ValueError("GeoSGD require sparse parameters in your net.") if len(context['tensor_table']) > 0 and context['is_worker']: name, ctx = _step_ctx(idx, context['role_maker']) send_ctx[name] = ctx return send_ctx def _step_ctx(idx, role_maker): name = STEP_COUNTER trainer_id = get_role_id(role_maker) endpoints = get_ps_endpoints(role_maker) sections = [1] * len(endpoints) names = [name] * len(endpoints) ctx = CommContext(name, names, endpoints, sections, [name], trainer_id, True, False, False, idx, True) return name, ctx def get_the_one_send_context(context, split_dense_table=False, use_origin_program=False, ep_list=None): if ep_list is None: ep_list = ["127.0.0.1:6071"] send_ctx = {} trainer_id = get_role_id(context['role_maker']) idx = 0 idx += get_dense_send_context(context, send_ctx, idx, context['merged_dense_pairs'], trainer_id, split_dense_table) distibuted_varnames = get_sparse_tablenames(context['origin_main_program'], True) for merged in context['merged_sparse_pairs']: param, grad = merged grad_name = grad.merged_var.name param_name = param.merged_var.name splited_varname = [] for i in range(len(ep_list)): splited_varname.append("{}.block{}".format(param_name, i)) is_distributed = True if param_name in distibuted_varnames else False var = context['origin_main_program'].global_block().vars[ grad.merged_var.name] shape = list(var.shape) shape[0] = 0 if is_distributed else shape[0] sparse_ctx = CommContext(grad_name, splited_varname, ep_list, shape, [grad_name], trainer_id, True, True, is_distributed, idx, False) idx += 1 send_ctx[sparse_ctx.var_name()] = sparse_ctx if len(context['tensor_table']) > 0 and context['is_worker']: name, ctx = _step_ctx(idx, context['role_maker']) send_ctx[name] = ctx return send_ctx def find_heter_ops(program, default_device="cpu"): if default_device not in DEVICE_LIST: raise ValueError("Given device {} is not in device list {}".format( default_device, DEVICE_LIST)) def _is_heter_op(op, current_heter_device, default_device="cpu"): heter_devices = list(DEVICE_LIST) heter_devices.remove(default_device) op_device = op.attr("op_device") op_type = op.type if op_device in heter_devices: return True elif op_type in COMMUNICATE_OPS_TYPE and current_heter_device != default_device: # for distributed communciate ops: send & recv & barrier etc. # Todo: need update this method #op._set_attr('op_device', current_heter_device) return True elif op_device == None or op_device == default_device: op._set_attr('op_device', default_device) return False return False def _is_same_device(op, pre_device, default_device="cpu"): op_device = op.attr("op_device") if op_device == pre_device: return True if pre_device == default_device: return True return False def _append_heter_op(op, current_heter_block_ops, heter_ops): op_device = op.attr("op_device") if op_device not in heter_ops: heter_ops[op_device] = {} current_heter_block_ops.append(op) origin_porgram = program.clone() block = program.global_block() ''' re-place sum op to fix bug for union forward backward op ''' var2idx = {} op_list = list(block.ops) op_size = len(op_list) for i in range(op_size - 1, -1, -1): op_list = list(block.ops) op = op_list[i] if "_grad" in op.type: forward_op_type = op.type.split("_grad")[0] if forward_op_type in SPARSE_OP_TYPE_DICT.keys() \ and op.attr('remote_prefetch') is True: param_name = op.input(SPARSE_OP_TYPE_DICT[forward_op_type])[0] if param_name in var2idx: ## insert sum op & remove sum op from var2idx and origin place op_list = list(block.ops) sum_op = op_list[var2idx[param_name]] sum_op_inputs = { sum_op.input_names[0]: [ block.vars[input] for input in sum_op.input_arg_names ] } sum_op_outputs = { sum_op.output_names[0]: [ block.vars[output] for output in sum_op.output_arg_names ] } block._insert_op( index=i + 1, type=sum_op.type, inputs=sum_op_inputs, outputs=sum_op_outputs, attrs=sum_op.all_attrs()) block._remove_op(var2idx[param_name] + 1) var2idx.pop(param_name) for var_ in var2idx: var2idx[var_] += 1 elif forward_op_type == "elementwise_mul": """ get output varname of pre op """ output_vars_no_grad = [] for key in op.output_names: for varname in op.output(key): if varname == "@EMPTY@": continue if "lod_tensor_blocking_queue" in varname: continue output_vars_no_grad.append(varname.split("@GRAD")[0]) for no_grad_var in output_vars_no_grad: if no_grad_var in var2idx: """ insert sum op & remove sum op from var2idx and origin place """ op_list = list(block.ops) sum_op = op_list[var2idx[no_grad_var]] sum_op_inputs = { sum_op.input_names[0]: [ block.vars[input] for input in sum_op.input_arg_names ] } sum_op_outputs = { sum_op.output_names[0]: [ block.vars[output] for output in sum_op.output_arg_names ] } block._insert_op( index=i + 1, type=sum_op.type, inputs=sum_op_inputs, outputs=sum_op_outputs, attrs=sum_op.all_attrs()) block._remove_op(var2idx[no_grad_var] + 1) var2idx.pop(no_grad_var) for var_ in var2idx: var2idx[var_] += 1 else: if op.type == "sum": var = op.output("Out")[0] if "@GRAD" in var: origin_var = var.split("@GRAD")[0] pre_op = op_list[i - 1] if "_grad" in pre_op.type: forward_op_type = pre_op.type.split("_grad")[0] if forward_op_type in SPARSE_OP_TYPE_DICT.keys() \ and pre_op.attr('remote_prefetch') is True: param_name = pre_op.input(SPARSE_OP_TYPE_DICT[ forward_op_type])[0] if param_name == origin_var and op.attr( "op_device") == pre_op.attr("op_device"): continue else: var2idx[origin_var] = i elif forward_op_type == "elementwise_mul": output_vars = [] for key in pre_op.output_names: for varname in pre_op.output(key): if varname == "@EMPTY@": continue if "lod_tensor_blocking_queue" in varname: continue output_vars.append(varname) input_vars = [] for key in op.input_names: for varname in op.input(key): if varname == "@EMPTY@": continue if "lod_tensor_blocking_queue" in varname: continue input_vars.append(varname) is_match = False for varname in output_vars: if varname in input_vars: is_match = True break if is_match: continue else: var2idx[origin_var] = i else: var2idx[origin_var] = i origin_porgram = program.clone() block = program.global_block() program_block_ops = [] default_ops = {default_device: {}} heter_ops = {} block_index = 0 current_heter_block_ops = [] current_default_block_ops = [] current_heter_device = default_device is_heter = False for op in block.ops: if _is_heter_op(op, current_heter_device, default_device): # for gpu/xpu-op is_heter = True # for cpu-op block append if len(current_default_block_ops) > 1: default_ops[default_device][ block_index] = current_default_block_ops program_block_ops.append(current_default_block_ops) current_default_block_ops = [] block_index += 1 if _is_same_device(op, current_heter_device, default_device): # for gpu-op, gpu-op -> gpu-op,... current_heter_device = op.attr("op_device") _append_heter_op(op, current_heter_block_ops, heter_ops) else: # for gpu-op -> xpu-op, ... op_device = current_heter_block_ops[0].attr("op_device") heter_ops[op_device][block_index] = current_heter_block_ops program_block_ops.append(current_heter_block_ops) block_index += 1 current_heter_block_ops = [] current_heter_device = op.attr("op_device") _append_heter_op(op, current_heter_block_ops, heter_ops) elif is_heter: # for gpu/xpu-op -> cpu-op op_device = current_heter_block_ops[0].attr("op_device") heter_ops[op_device][block_index] = current_heter_block_ops program_block_ops.append(current_heter_block_ops) block_index += 1 current_heter_block_ops = [] current_heter_device = default_device is_heter = False current_default_block_ops.append(op) else: # for cpu-op current_default_block_ops.append(op) if current_default_block_ops != []: default_ops[default_device][block_index] = current_default_block_ops program_block_ops.append(current_default_block_ops) if current_heter_block_ops != []: op_device = current_heter_block_ops[0].attr("op_device") heter_ops[op_device][block_index] = current_heter_block_ops program_block_ops.append(current_heter_block_ops) if len(heter_ops) == 0: warnings.warn( "No heterogeneous OP was found in your program , " " please using fluid.device_guard() to run OPs on different device.") total_heter_ops = 0 heter_blocks = 0 for device in heter_ops.keys(): heter_block_dict = heter_ops[device] heter_blocks += len(heter_block_dict) for _, heter_block in heter_block_dict.items(): total_heter_ops += len(heter_block) print( "There are {} OPs in your main_program, and contains {} heter-OPs which is made up of {} heter-blocks.". format(len(block.ops), total_heter_ops, heter_blocks)) return origin_porgram, heter_ops, default_ops, program_block_ops def union_forward_gradient_op(program_block_ops_list): """ before analyzing the input & output of each block in program_block_list, we should union the forward op and corresponding gradient op to elimincate the uneccessary variable transmit """ """ fix for 2emb model, re-place sum op """ block_length = len(program_block_ops_list) union_program_block_ops_list = [] assert block_length % 2 != 0, "the length of program_block_ops_list should be odd" for i in range(0, block_length // 2): block_op_list = {"forward": program_block_ops_list[i]} block_op_list.update({ "backward": program_block_ops_list[block_length - 1 - i] }) union_program_block_ops_list.append(block_op_list) block_op_list = {"forward": [], "backward": []} for op in program_block_ops_list[block_length // 2]: if not "_grad" in op.type and not (op.type == "sum"): block_op_list["forward"].append(op) else: block_op_list["backward"].append(op) union_program_block_ops_list.append(block_op_list) return union_program_block_ops_list def find_block_joints(program, program_block_ops_list, heter_ops): block_var_detail = find_entrance_exit_private(program, program_block_ops_list) block_var_detail = entrance_exit_check(program, program_block_ops_list, block_var_detail, heter_ops) block_var_detail = delete_block_useless_exit( program, program_block_ops_list, block_var_detail) return block_var_detail def find_ops_list_input_output(program, ops_list): input_var_list = [] output_var_list = [] for op in ops_list: inputs = _get_input_map_from_op(program.global_block().vars, op) input_var_list += get_varlist_from_op_map(inputs) outputs = _get_output_map_from_op(program.global_block().vars, op) output_var_list += get_varlist_from_op_map(outputs) input_var_list = list(set(input_var_list)) output_var_list = list(set(output_var_list)) return input_var_list, output_var_list def find_entrance_exit_private(program, program_block_ops_list): block_var_detail = [] persistables = [] for index, block_op_list in enumerate(program_block_ops_list): ## forward block_input, block_output = find_ops_list_input_output( program, block_op_list["forward"]) persistables = screen_persistables( program, block_input) + screen_persistables(program, block_output) # find entrance & exit block_private_vars = list(set(block_input) & set(block_output)) block_entrance = list(set(block_input) - set(block_private_vars)) block_exit = list(set(block_output) - set(block_private_vars)) detail = { "forward": { "entrance": block_entrance, "exit": block_exit, "private": block_private_vars, "persistables": persistables } } ## backward bp_block_input, bp_block_output = find_ops_list_input_output( program, block_op_list["backward"]) bp_persistables = screen_persistables( program, bp_block_input) + screen_persistables(program, bp_block_output) # find entrance & exit bp_block_private_vars = list(set(bp_block_input) & set(bp_block_output)) bp_block_entrance = list( set(bp_block_input) - set(bp_block_private_vars)) bp_block_exit = list(set(bp_block_output) - set(bp_block_private_vars)) detail.update({ "backward": { "entrance": bp_block_entrance, "exit": bp_block_exit, "private": bp_block_private_vars, "persistables": bp_persistables } }) block_var_detail.append(detail) return block_var_detail def entrance_exit_check(program, program_block_ops_list, block_var_detail, heter_ops): for index in range(len(block_var_detail) - 1, -1, -1): if index - 1 < 0: break previous_block_exit = block_var_detail[index - 1]["forward"]["exit"] previous_block_exit.sort() current_block_entrance = block_var_detail[index]["forward"]["entrance"] backward_entrance = block_var_detail[index]["backward"]["entrance"] forward_all = block_var_detail[index]["forward"][ "entrance"] + block_var_detail[index]["forward"][ "private"] + block_var_detail[index]["forward"]["exit"] for var in backward_entrance: if not ("@GRAD" in var) and not (var in forward_all): current_block_entrance.append(var) current_block_entrance.sort() if previous_block_exit == current_block_entrance: continue exist_vars = list( set(previous_block_exit) & set(current_block_entrance)) need_add_vars = list(set(current_block_entrance) - set(exist_vars)) # var in different stage should not be ignored, since they are not placed in the same program & device #need_add_vars = find_need_var_from_previous_block( # need_add_vars, block_var_detail, index, heter_ops) previous_block_private = block_var_detail[index - 1]["forward"][ "private"] previous_block_entrance = block_var_detail[index - 1]["forward"][ "entrance"] for var in need_add_vars: if var not in previous_block_private and var not in previous_block_entrance: previous_block_entrance.append(var) previous_block_exit.append(var) if not var in current_block_entrance: current_block_entrance.append(var) for index in range(0, len(block_var_detail) - 1, 1): previous_block_exit = block_var_detail[index + 1]["backward"]["exit"] previous_block_exit.sort() current_block_entrance = block_var_detail[index]["backward"]["entrance"] current_block_entrance.sort() if previous_block_exit == current_block_entrance: continue exist_vars = list( set(previous_block_exit) & set(current_block_entrance)) need_add_vars = list(set(current_block_entrance) - set(exist_vars)) need_ignore_vars = [] for var in need_add_vars: if not "@GRAD" in var: need_ignore_vars.append(var) need_add_vars = list( set(need_add_vars).difference(set(need_ignore_vars))) previous_block_private = block_var_detail[index + 1]["backward"][ "private"] previous_block_entrance = block_var_detail[index + 1]["backward"][ "entrance"] for var in need_add_vars: if var not in previous_block_private and var not in previous_block_entrance: previous_block_entrance.append(var) previous_block_exit.append(var) return block_var_detail def delete_block_useless_exit(program, program_block_ops_list, block_var_detail): ## forward for index in range(len(block_var_detail)): if index == len(block_var_detail) - 1: break current_block_exit = block_var_detail[index]["forward"]["exit"] next_block_entrance = block_var_detail[index + 1]["forward"]["entrance"] need_delete_var = [] for var in current_block_exit: if var not in next_block_entrance: need_delete_var.append(var) for var in need_delete_var: current_block_exit.remove(var) ## backward for index in range(len(block_var_detail) - 1, -1, -1): if index - 1 < 0: break current_block_exit = block_var_detail[index]["backward"]["exit"] next_block_entrance = block_var_detail[index - 1]["backward"][ "entrance"] need_delete_var = [] for var in current_block_exit: if var not in next_block_entrance: need_delete_var.append(var) for var in need_delete_var: current_block_exit.remove(var) return block_var_detail def get_communicate_var_info(program, block_index, entrance_var_list, type="forward"): input_var_reshape_dim = [] input_var_reshape_name = [] if type == "forward": block_input_var_name = "forward_joint_{}_{}@Heter".format( block_index - 1, block_index) else: block_input_var_name = "backward_joint_{}_{}@Heter".format( block_index + 1, block_index) entrance_var_list.sort() # input # Heter_SERVER_BLOCK_index@JOINT_VAR -> slice -> var@Heter_SERVER_BLOCK@INPUT_RESHAPE_VAR -> reshape -> var for name in entrance_var_list: var = program.global_block().vars[name] shape = var.shape recv_var_dim = -1 * reduce(lambda x, y: x * y, shape) input_var_reshape_dim.append(recv_var_dim) input_var_reshape_name.append("{}.input_reshape@Heter".format(name)) info = { "input_var_reshape_dim": input_var_reshape_dim, "input_var_reshape_name": input_var_reshape_name, "block_input_var_name": block_input_var_name, } return info def add_vars_by_var_list(var_name_list, origin_program, program, block): for var_name in var_name_list: if var_name not in program.global_block( ).vars and var_name not in block.vars: var = origin_program.global_block().vars[var_name] if var.persistable: program.global_block()._clone_variable( var, force_persistable=False) else: block._clone_variable(var, force_persistable=False) def _get_output_map_from_op(varmap, op): """Returns a dict from op output name to the vars in varmap.""" iomap = collections.OrderedDict() for key in op.output_names: vars = [] for varname in op.output(key): if varname == "@EMPTY@": continue if "lod_tensor_blocking_queue" in varname: continue vars.append(varmap[varname]) if len(vars) == 1: iomap[key] = vars[0] else: iomap[key] = vars return iomap def get_varlist_from_op_map(var_map): var_list = [] for key, varlist in six.iteritems(var_map): if not isinstance(varlist, list): varlist = [varlist] for i in range(len(varlist)): var = varlist[i] var_list.append(var.name) return var_list def _get_input_map_from_op(varmap, op): """Returns a dict from op input name to the vars in varmap.""" iomap = collections.OrderedDict() for key in op.input_names: vars = [] for varname in op.input(key): if varname == "@EMPTY@": continue if "lod_tensor_blocking_queue" in varname: continue vars.append(varmap[varname]) if len(vars) == 1: iomap[key] = vars[0] else: iomap[key] = vars return iomap def screen_persistables(program, var_list): need_remove = [] for var_name in var_list: if "@GRAD" in var_name: if "GRAD" != var_name.split("@")[-1]: continue origin_var_name = var_name.split("@GRAD")[0] var = program.global_block().vars[origin_var_name] else: var = program.global_block().vars[var_name] if fluid.io.is_persistable(var): need_remove.append(var_name) for var_name in need_remove: var_list.remove(var_name) return need_remove def block_append_op(program, origin_program, block, op): merge_ordereddict = origin_program.global_block().vars.copy() merge_ordereddict.update(block.vars) inputs = _get_input_map_from_op(merge_ordereddict, op) for key, varlist in six.iteritems(inputs): if not isinstance(varlist, list): varlist = [varlist] for var in varlist: if var.name not in program.global_block( ).vars and var.name not in block.vars: if var.persistable: program.global_block()._clone_variable( var, force_persistable=False) else: block._clone_variable(var, force_persistable=False) outputs = _get_output_map_from_op(origin_program.global_block().vars, op) for key, varlist in six.iteritems(outputs): if not isinstance(varlist, list): varlist = [varlist] for var in varlist: if var.name not in program.global_block( ).vars and var.name not in block.vars: if var.persistable: program.global_block()._clone_variable( var, force_persistable=False) else: block._clone_variable(var, force_persistable=False) if "_grad" not in op.type: # for forward op return block.append_op( type=op.type, inputs=inputs, outputs=outputs, attrs=op.all_attrs()) else: # for grad op op_desc = op.desc op_role_attr_name = core.op_proto_and_checker_maker.kOpRoleAttrName() backward = core.op_proto_and_checker_maker.OpRole.Backward device_attr_name = core.op_proto_and_checker_maker.kOpDeviceAttrName() # append grad op new_op_desc = block.desc.append_op() new_op_desc.copy_from(op_desc) new_op_desc._set_attr(op_role_attr_name, backward) # set device gard if op.desc.has_attr(device_attr_name): op_device = op_desc.attr(device_attr_name) new_op_desc._set_attr(device_attr_name, op_device) block._sync_with_cpp() def get_next_stage_trainers(role_maker): try: return role_maker._get_next_trainers() except Exception: return role_maker.get_next_trainers() def insert_communicate_op(orign_program, role_maker, heter_block, stage_id, first_op_index, block_var_detail, device, is_forward=True): if is_forward: next_heter_worker_endpoints = get_next_stage_trainers(role_maker) previous_heter_worker_endpoints = get_previous_stage_trainers( role_maker) entrance_var = block_var_detail[stage_id]["forward"]["entrance"] comm_info = get_communicate_var_info(orign_program, stage_id + 1, entrance_var) else: next_heter_worker_endpoints = get_next_stage_trainers(role_maker) previous_heter_worker_endpoints = get_previous_stage_trainers( role_maker) entrance_var = block_var_detail[stage_id - 1]["backward"]["exit"] comm_info = get_communicate_var_info(orign_program, stage_id - 1, entrance_var, "backward") heter_block._insert_op( index=first_op_index, type="send_and_recv", inputs={"X": heter_block.vars[entrance_var[0]]}, outputs={"Out": []}, attrs={ "mode": "forward" if is_forward else "backward", "send_var_name": entrance_var + ["microbatch_id"], "recv_var_name": [], "message_name": comm_info["block_input_var_name"], "next_endpoints": next_heter_worker_endpoints, "previous_endpoints": previous_heter_worker_endpoints, "trainer_id": get_role_id(role_maker), "op_device": device, RPC_OP_ROLE_ATTR_NAME: RPC_OP_ROLE_ATTR_VALUE }) return entrance_var def get_the_one_recv_context(context, is_dense=True, split_dense_table=False, use_origin_program=False): recv_id_maps = {} grad_name_to_param_name = {} if is_dense: send_ctx = get_the_one_send_context( context, split_dense_table=split_dense_table, use_origin_program=use_origin_program) for idx, (name, ctx) in enumerate(send_ctx.items()): if ctx.is_sparse(): continue if ctx.is_tensor_table(): continue origin_grad_varnames = ctx.origin_varnames() param_names = [] for grad_varname in origin_grad_varnames: param_name = grad_name_to_param_name[grad_varname] param_names.append(param_name) recv_id_maps[ctx.table_id()] = param_names else: send_ctx = get_the_one_send_context( context, split_dense_table=False, use_origin_program=False, ep_list=None) for idx, (name, ctx) in enumerate(send_ctx.items()): if not ctx.is_sparse(): continue origin_grad_varnames = ctx.origin_varnames() param_names = [] for grad_varname in origin_grad_varnames: param_name = grad_name_to_param_name[grad_varname] param_names.append(param_name) recv_id_maps[ctx.table_id()] = param_names return recv_id_maps def _get_varname_parts(varname): # returns origin, blockid, trainerid orig_var_name = "" trainer_part = "" block_part = "" trainer_idx = varname.find(".trainer_") if trainer_idx >= 0: trainer_part = varname[trainer_idx + 1:] else: trainer_idx = len(varname) block_index = varname.find(".block") if block_index >= 0: block_part = varname[block_index + 1:trainer_idx] else: block_index = len(varname) orig_var_name = varname[0:min(block_index, trainer_idx)] return orig_var_name, block_part, trainer_part dtype_to_size = { core.VarDesc.VarType.FP16: 2, core.VarDesc.VarType.FP32: 4, core.VarDesc.VarType.FP64: 8, core.VarDesc.VarType.INT16: 2, core.VarDesc.VarType.INT32: 4, core.VarDesc.VarType.INT64: 8, core.VarDesc.VarType.BOOL: 1, core.VarDesc.VarType.UINT8: 1, } def get_var_mem_size(var): m_size = reduce(lambda x, y: x * y, var.shape) m_size *= dtype_to_size[var.dtype] return m_size class MergedVariable: def __init__(self, merged, ordered, offsets): self.merged_var = merged self.ordered_vars = ordered self.offsets = offsets def build_var_distributed(context): sparse_pairs, dense_pairs = get_param_grads(context['origin_main_program']) origin_for_sparse = [] origin_for_dense = [] param_name_grad_name = {} grad_name_to_param_name = {} context["merged_variables_pairs"] = [] context["merged_sparse_pairs"] = [] context['merged_dense_pairs'] = [] context["merged_variable_map"] = {} for param, grad in sparse_pairs: origin_for_sparse.append((param, grad)) for param, grad in dense_pairs: origin_for_dense.append((param, grad)) for dense_pair in origin_for_dense: param, grad = dense_pair m_param = MergedVariable(param, [param], [0]) m_grad = MergedVariable(grad, [grad], [0]) context["merged_variables_pairs"].append((m_param, m_grad)) context["merged_dense_pairs"].append((m_param, m_grad)) for sparse_pair in origin_for_sparse: param, grad = sparse_pair m_param = MergedVariable(param, [param], [0]) m_grad = MergedVariable(grad, [grad], [0]) context["merged_variables_pairs"].append((m_param, m_grad)) context["merged_sparse_pairs"].append((m_param, m_grad)) for merged in context["merged_variables_pairs"]: m_param, m_grad = merged context["merged_variable_map"][ m_param.merged_var.name] = m_param.merged_var context["merged_variable_map"][ m_grad.merged_var.name] = m_grad.merged_var param_merges = [] param_merges.extend(origin_for_sparse) param_merges.extend(origin_for_dense) for param, grad in param_merges: param_name_grad_name[param.name] = grad.name grad_name_to_param_name[grad.name] = param.name context["origin_sparse_pairs"] = origin_for_sparse context["origin_dense_pairs"] = origin_for_dense context["param_name_to_grad_name"] = param_name_grad_name context["grad_name_to_param_name"] = grad_name_to_param_name def _is_opt_role_op(op): # NOTE : depend on oprole to find out whether this op is for # optimize op_maker = core.op_proto_and_checker_maker optimize_role = core.op_proto_and_checker_maker.OpRole.Optimize if op_maker.kOpRoleAttrName() in op.attr_names and \ int(op.all_attrs()[op_maker.kOpRoleAttrName()]) == int(optimize_role): return True return False def get_param_grads(origin_program): def _get_params_grads(sparse_varnames): block = origin_program.global_block() dense_param_grads = [] sparse_param_grads = [] optimize_params = set() origin_var_dict = origin_program.global_block().vars role_id = int(core.op_proto_and_checker_maker.OpRole.Backward) for op in block.ops: if _is_opt_role_op(op): # delete clip op from opt_ops when run in Parameter Server mode if OP_NAME_SCOPE in op.all_attrs() \ and CLIP_OP_NAME_SCOPE in op.attr(OP_NAME_SCOPE): op._set_attr("op_role", role_id) continue if op.attr(OP_ROLE_VAR_ATTR_NAME): param_name = op.attr(OP_ROLE_VAR_ATTR_NAME)[0] grad_name = op.attr(OP_ROLE_VAR_ATTR_NAME)[1] if param_name not in optimize_params: optimize_params.add(param_name) param_grad = (origin_var_dict[param_name], origin_var_dict[grad_name]) if param_name in sparse_varnames: sparse_param_grads.append(param_grad) else: dense_param_grads.append(param_grad) return sparse_param_grads, dense_param_grads def _get_sparse_varnames(): varnames = [] for op in origin_program.global_block().ops: if op.type in SPARSE_OP_TYPE_DICT.keys() \ and op.attr('remote_prefetch') is True: param_name = op.input(SPARSE_OP_TYPE_DICT[op.type])[0] varnames.append(param_name) return list(set(varnames)) sparse_varnames = _get_sparse_varnames() sparse_param_grads, dense_param_grads = _get_params_grads(sparse_varnames) return sparse_param_grads, dense_param_grads def delete_ops(block, ops): for op in ops: try: idx = list(block.ops).index(op) block._remove_op(idx) except Exception as e: print(e) def find_send_op(program): send_op_list = [] for op in program.global_block().ops: if op.type == "send": send_op_list.append(op) return send_op_list def find_op_input_output(program, block, op): input_var_list = [] output_var_list = [] inputs = _get_input_map_from_op(block.vars, op) input_var_list += get_varlist_from_op_map(inputs) outputs = _get_output_map_from_op(block.vars, op) output_var_list += get_varlist_from_op_map(outputs) input_var_list = list(set(input_var_list)) output_var_list = list(set(output_var_list)) return input_var_list, output_var_list def add_heter_send_op(program, heter_program, block, block_var_detail): def _get_send_op_dict(): send_op_dict = {} send_op_list = find_send_op(program) for op in send_op_list: input_list, _ = find_op_input_output(program, program.global_block(), op) for var in input_list: send_op_dict[var] = op return send_op_dict send_grad_var_list = [] send_op_dict = _get_send_op_dict() table_dict = {} for persistable_var in block_var_detail["backward"]["persistables"]: if "@GRAD" not in persistable_var: continue if "GRAD" != persistable_var.split("@")[-1]: continue if persistable_var not in send_op_dict: continue send_op = send_op_dict[persistable_var] is_sparse = send_op.attr('is_sparse') table_id = send_op.attr('table_id') send_varnames = send_op.attr('send_varnames') send_grad_var_list.append(persistable_var) if table_id not in table_dict: table_dict[table_id] = {} table_dict[table_id]['var_list'] = [] table_dict[table_id]['is_sparse'] = is_sparse table_dict[table_id]['send_varnames'] = send_varnames table_dict[table_id]['var_list'].append(persistable_var) for table_id in table_dict: dummy_output = block.create_var( name=framework.generate_control_dev_var_name()) send_input_vars = [ block.vars[union_var] for union_var in table_dict[table_id]['var_list'] ] block.append_op( type="send", inputs={"X": send_input_vars}, outputs={"Out": dummy_output}, attrs={ "send_varnames": table_dict[table_id]['send_varnames'], "is_sparse": is_sparse, "table_id": table_id, RPC_OP_ROLE_ATTR_NAME: RPC_OP_ROLE_ATTR_VALUE }) return send_grad_var_list def get_vars_name_in_block(block): vars_list = block.vars.keys() vars_name_list = [var_name for var_name in vars_list] return vars_name_list def delete_trainer_useless_var(program, static_var): static_var = list(set(static_var)) program_useful_var_list = [] for op in program.global_block().ops: input_var_list, output_var_list = find_op_input_output( program, program.global_block(), op) op_var_list = list(set(input_var_list).union(set(output_var_list))) program_useful_var_list = list( set(program_useful_var_list).union(set(op_var_list))) program_useful_var_list += static_var program_useless_var_list = list( set(get_vars_name_in_block(program.global_block())).difference( set(program_useful_var_list))) for var in program_useless_var_list: program.global_block()._remove_var(var) return program_useless_var_list def create_backward_block(program, origin_program, bp_ops_list, block_var_detail): pre_block_idx = program.num_blocks - 1 heter_block = program._create_block(pre_block_idx) for _, op in enumerate(bp_ops_list): if op.type == "send": send_varnames = op.attr('send_varnames') is_skip = False for varname in send_varnames: if varname not in program.global_block( ).vars and varname not in heter_block.vars: is_skip = True break if is_skip == True: continue block_append_op(program, origin_program, heter_block, op) entrance_vars = block_var_detail[0]["backward"]["entrance"] add_vars_by_var_list(entrance_vars, origin_program, program, heter_block) exit_vars = block_var_detail[0]["backward"]["exit"] add_vars_by_var_list(exit_vars, origin_program, program, heter_block) return heter_block def debug_program(file, program): with open(file, 'w+') as f: f.write(str(program))