import argparse import multiprocessing import os import time from random import shuffle import h5py import numpy as np import psutil from get_mask import PreTrainingDataset from tqdm import tqdm from transformers import AutoTokenizer def get_raw_instance(document, max_sequence_length=512): """ Get the initial training instances, split the whole segment into multiple parts according to the max_sequence_length, and return as multiple processed instances. :param document: document :param max_sequence_length: :return: a list. each element is a sequence of text """ # document = self.documents[index] max_sequence_length_allowed = max_sequence_length - 2 # document = [seq for seq in document if len(seq)= max_sequence_length_allowed: if len(curr_seq) > 0: result_list.append(curr_seq) curr_seq = [] result_list.append(document[sz_idx][:max_sequence_length_allowed]) sz_idx += 1 else: result_list.append(curr_seq) curr_seq = [] if len(curr_seq) > max_sequence_length_allowed / 2: # /2 result_list.append(curr_seq) # num_instance=int(len(big_list)/max_sequence_length_allowed)+1 # print("num_instance:",num_instance) # result_list=[] # for j in range(num_instance): # index=j*max_sequence_length_allowed # end_index=index+max_sequence_length_allowed if j!=num_instance-1 else -1 # result_list.append(big_list[index:end_index]) return result_list def split_numpy_chunk(path, tokenizer, pretrain_data, host): documents = [] instances = [] s = time.time() with open(path, encoding="utf-8") as fd: document = [] for i, line in enumerate(tqdm(fd)): line = line.strip() # document = line # if len(document.split("")) <= 3: # continue if len(line) > 0 and line[:2] == "]]": # This is end of document documents.append(document) document = [] elif len(line) >= 2: document.append(line) if len(document) > 0: documents.append(document) print("read_file ", time.time() - s) # documents = [x for x in documents if x] # print(len(documents)) # print(len(documents[0])) # print(documents[0][0:10]) ans = [] for docs in tqdm(documents): ans.append(pretrain_data.tokenize(docs)) print(time.time() - s) del documents instances = [] for a in tqdm(ans): raw_ins = get_raw_instance(a) instances.extend(raw_ins) del ans print("len instance", len(instances)) sen_num = len(instances) seq_len = 512 input_ids = np.zeros([sen_num, seq_len], dtype=np.int32) input_mask = np.zeros([sen_num, seq_len], dtype=np.int32) segment_ids = np.zeros([sen_num, seq_len], dtype=np.int32) masked_lm_output = np.zeros([sen_num, seq_len], dtype=np.int32) for index, ins in tqdm(enumerate(instances)): mask_dict = pretrain_data.create_training_instance(ins) input_ids[index] = mask_dict[0] input_mask[index] = mask_dict[1] segment_ids[index] = mask_dict[2] masked_lm_output[index] = mask_dict[3] with h5py.File(f"/output/{host}.h5", "w") as hf: hf.create_dataset("input_ids", data=input_ids) hf.create_dataset("input_mask", data=input_ids) hf.create_dataset("segment_ids", data=segment_ids) hf.create_dataset("masked_lm_positions", data=masked_lm_output) del instances def split_numpy_chunk_pool(input_path, output_path, pretrain_data, worker, dupe_factor, seq_len, file_name): if os.path.exists(os.path.join(output_path, f"{file_name}.h5")): print(f"{file_name}.h5 exists") return documents = [] instances = [] s = time.time() with open(input_path, "r", encoding="utf-8") as fd: document = [] for i, line in enumerate(tqdm(fd)): line = line.strip() if len(line) > 0 and line[:2] == "]]": # This is end of document documents.append(document) document = [] elif len(line) >= 2: document.append(line) if len(document) > 0: documents.append(document) print(f"read_file cost {time.time() - s}, length is {len(documents)}") ans = [] s = time.time() pool = multiprocessing.Pool(worker) encoded_doc = pool.imap_unordered(pretrain_data.tokenize, documents, 100) for index, res in tqdm(enumerate(encoded_doc, start=1), total=len(documents), colour="cyan"): ans.append(res) pool.close() print((time.time() - s) / 60) del documents instances = [] for a in tqdm(ans, colour="MAGENTA"): raw_ins = get_raw_instance(a, max_sequence_length=seq_len) instances.extend(raw_ins) del ans print("len instance", len(instances)) new_instances = [] for _ in range(dupe_factor): for ins in instances: new_instances.append(ins) shuffle(new_instances) instances = new_instances print("after dupe_factor, len instance", len(instances)) sentence_num = len(instances) input_ids = np.zeros([sentence_num, seq_len], dtype=np.int32) input_mask = np.zeros([sentence_num, seq_len], dtype=np.int32) segment_ids = np.zeros([sentence_num, seq_len], dtype=np.int32) masked_lm_output = np.zeros([sentence_num, seq_len], dtype=np.int32) s = time.time() pool = multiprocessing.Pool(worker) encoded_docs = pool.imap_unordered(pretrain_data.create_training_instance, instances, 32) for index, mask_dict in tqdm(enumerate(encoded_docs), total=len(instances), colour="blue"): input_ids[index] = mask_dict[0] input_mask[index] = mask_dict[1] segment_ids[index] = mask_dict[2] masked_lm_output[index] = mask_dict[3] pool.close() print((time.time() - s) / 60) with h5py.File(os.path.join(output_path, f"{file_name}.h5"), "w") as hf: hf.create_dataset("input_ids", data=input_ids) hf.create_dataset("input_mask", data=input_mask) hf.create_dataset("segment_ids", data=segment_ids) hf.create_dataset("masked_lm_positions", data=masked_lm_output) del instances if __name__ == "__main__": parser = argparse.ArgumentParser() parser.add_argument("--tokenizer_path", type=str, required=True, default=10, help="path of tokenizer") parser.add_argument("--seq_len", type=int, default=512, help="sequence length") parser.add_argument( "--max_predictions_per_seq", type=int, default=80, help="number of shards, e.g., 10, 50, or 100" ) parser.add_argument("--input_path", type=str, required=True, help="input path of shard which has split sentence") parser.add_argument("--output_path", type=str, required=True, help="output path of h5 contains token id") parser.add_argument( "--backend", type=str, default="python", help="backend of mask token, python, c++, numpy respectively" ) parser.add_argument( "--dupe_factor", type=int, default=1, help="specifies how many times the preprocessor repeats to create the input from the same article/document", ) parser.add_argument("--worker", type=int, default=32, help="number of process") parser.add_argument("--server_num", type=int, default=10, help="number of servers") args = parser.parse_args() tokenizer = AutoTokenizer.from_pretrained(args.tokenizer_path) pretrain_data = PreTrainingDataset( tokenizer, args.seq_len, args.backend, max_predictions_per_seq=args.max_predictions_per_seq ) data_len = len(os.listdir(args.input_path)) for i in range(data_len): input_path = os.path.join(args.input_path, f"{i}.txt") if os.path.exists(input_path): start = time.time() print(f"process {input_path}") split_numpy_chunk_pool( input_path, args.output_path, pretrain_data, args.worker, args.dupe_factor, args.seq_len, i ) end_ = time.time() print("memory：%.4f GB" % (psutil.Process(os.getpid()).memory_info().rss / 1024 / 1024 / 1024)) print(f"has cost {(end_ - start) / 60}") print("-" * 100) print("") # if you have multiple server, you can use code below or modify code to openmpi # host = int(socket.gethostname().split('GPU')[-1]) # for i in range(data_len // args.server_num + 1): # h = args.server_num * i + host - 1 # input_path = os.path.join(args.input_path, f'{h}.txt') # if os.path.exists(input_path): # start = time.time() # print(f'I am server {host}, process {input_path}') # split_numpy_chunk_pool(input_path, # args.output_path, # pretrain_data, # args.worker, # args.dupe_factor, # args.seq_len, # h) # end_ = time.time() # print(u'memory：%.4f GB' % (psutil.Process(os.getpid()).memory_info().rss / 1024 / 1024 / 1024) ) # print(f'has cost {(end_ - start) / 60}') # print('-' * 100) # print('')