mindspore/model_zoo/warpctc/scripts/run_distribute_train.sh

#!/bin/bash
# Copyright 2020 Huawei Technologies Co., Ltd
#
# 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.
# ============================================================================

if [ $# != 2 ]; then
  echo "Usage: sh run_distribute_train.sh [MINDSPORE_HCCL_CONFIG_PATH] [DATASET_PATH]"
  exit 1
fi

get_real_path() {
  if [ "${1:0:1}" == "/" ]; then
    echo "$1"
  else
    echo "$(realpath -m $PWD/$1)"
  fi
}

PATH1=$(get_real_path $1)
PATH2=$(get_real_path $2)

if [ ! -f $PATH1 ]; then
  echo "error: MINDSPORE_HCCL_CONFIG_PATH=$PATH1 is not a file"
  exit 1
fi

if [ ! -d $PATH2 ]; then
  echo "error: DATASET_PATH=$PATH2 is not a directory"
  exit 1
fi

ulimit -u unlimited
export DEVICE_NUM=8
export RANK_SIZE=8
export MINDSPORE_HCCL_CONFIG_PATH=$PATH1
export RANK_TABLE_FILE=$PATH1

for ((i = 0; i < ${DEVICE_NUM}; i++)); do
  export DEVICE_ID=$i
  export RANK_ID=$i
  rm -rf ./train_parallel$i
  mkdir ./train_parallel$i
  cp ../*.py ./train_parallel$i
  cp *.sh ./train_parallel$i
  cp -r ../src ./train_parallel$i
  cd ./train_parallel$i || exit
  echo "start training for rank $RANK_ID, device $DEVICE_ID"
  env >env.log
  python train.py --run_distribute=True --device_num=$DEVICE_NUM --dataset_path=$PATH2 &>log &
  cd ..
done