update new reader for resnet, mobilenet; test=develop #4685
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chenwhql
reviewed
Jun 3, 2020
dygraph/mobilenet/train.py
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| test_reader = imagenet_reader.val(settings=args) | ||
| train_data_loader.set_sample_list_generator(train_reader, place) | ||
| test_data_loader.set_sample_list_generator(test_reader, place) | ||
| #train_reader = imagenet_reader.train(settings=args) |
| places=place, | ||
| shuffle=True, | ||
| drop_last=True, | ||
| num_workers=10) |
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这个用多进程一般情况下docker应该直接会崩，CE会不会被卡？或者要不要加点注释提醒下用户？虽然文档和报错里也都有，但QA可能会因为这个问题来找
例如：
Note:
- Docker
/dev/shmsize: DataLoader use mmap(Memory Map) to implement shared memory. You need to confirm if your shared memory is big enough, otherwise a bus error will occur. The docker default/dev/shmsize is 64M, you can set it by docker--shm-sizeparameter, for example,docker run --name [Name of container] -it --shm-size=2g -v $PWD:/paddle <imagename> /bin/bash, you can see docker's shared memory size bydf -h - You need to make sure your
/dev/shmsize is larger than the following calculation results, otherwise, it will report anBus errorbecause of insufficient shared memory
DataLoader Num * queue capacity * 1 batch data size
| use_double_buffer=True, | ||
| iterable=True, | ||
| return_list=True, | ||
| use_multiprocess=True) |
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同上，use_multiprocess打开，默认创建的docker直接会崩
chenwhql
approved these changes
Jun 9, 2020
|
先merge了，还有需要修改的地方，下个PR再改吧。 |
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更新mobile net reader，使用更高效的DataLoader，
更新resnet reader，支持image net的数据格式