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How to use split_shard method in localstack

Best Python code snippet using localstack_python

dist_dataset.py

Source:dist_dataset.py

...38    def generate(self):39        if self.world_size == 1 or len(self.files) == 1:40            cur_dataloader_files = self.files41        else:42            cur_dataloader_files = split_shard(43                self.files, self.rank, self.world_size)44        while True:45            if self.shuffle:46                random.shuffle(cur_dataloader_files)47            worker_info = torch.utils.data.get_worker_info()48            if worker_info is not None:49                if len(cur_dataloader_files) % worker_info.num_workers != 0:50                    print('[DATA]--current dataloader %s file num %s cannot split to worker_num %s ' %51                             (self.rank, len(cur_dataloader_files), worker_info.num_workers))52                cur_worker_files = split_shard(53                    cur_dataloader_files, worker_info.id, worker_info.num_workers)54                if worker_info.id == 0:55                    print("[DataLoader] --> Rank:{}  Workers:[{} ~ {}][{}]  Size of process file:{}  ...".format(56                        self.rank, 0, worker_info.num_workers - 1, worker_info.id, len(cur_dataloader_files)))57            else:58                cur_worker_files = cur_dataloader_files59            if self.shuffle:60                random.shuffle(cur_worker_files)61            for filepath in cur_worker_files:62                if self.is_hdfs:63                    with hopen(filepath, 'r') as reader:64                        for line in reader:65                            yield line.decode()66                    continue67                with open(filepath, 'r') as reader:68                    for line in reader:69                        yield line70            if not self.repeat:71                break72    def __iter__(self):73        return self.generate()  74def split_shard(data: List[Any], shard_idx: int, shard_size: int):75    num = len(data)76    if num < shard_size:77        raise RuntimeError("num:{} < shard size:{}".format(num, shard_size))78    start_idx = (num * shard_idx) // shard_size79    end_idx = (num * (shard_idx + 1)) // shard_size...

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