!20634 optimize FaceRecognitionForTracking training speed

Merge pull request !20634 from zhouneng/code_docs_fix_issue_I3XLT6

model_zoo/research/cv/FaceRecognitionForTracking/reid_8p_ascend_config.yaml

@@ -46,7 +46,7 @@ world_size: 8
 # logging related
 log_interval: 10
 ckpt_path: '../../output'
-ckpt_interval: 200
+ckpt_interval: 400
 
 # train/eval option
 data_dir: ''

model_zoo/research/cv/FaceRecognitionForTracking/scripts/run_distribute_train.sh

@@ -70,6 +70,10 @@ echo $PRETRAINED_BACKBONE
 export RANK_TABLE_FILE=$RANK_TABLE
 export RANK_SIZE=8
 
+cpus=`cat /proc/cpuinfo| grep "processor"| wc -l`
+avg=`expr $cpus \/ $RANK_SIZE`
+gap=`expr $avg \- 1`
+
 config_path="${dirname_path}/reid_8p_ascend_config.yaml"
 echo "config path is : ${config_path}"
 
@@ -77,12 +81,15 @@ echo 'start training'
 for((i=0;i<=$RANK_SIZE-1;i++));
 do
     echo 'start rank '$i
+    start=`expr $i \* $avg`
+    end=`expr $start \+ $gap`
+    cmdopt=$start"-"$end
     mkdir ${current_exec_path}/device$i
     cd ${current_exec_path}/device$i  || exit
     export RANK_ID=$i
     dev=`expr $i + 0`
     export DEVICE_ID=$dev
-    python ${dirname_path}/${SCRIPT_NAME} \
+    taskset -c $cmdopt python ${dirname_path}/${SCRIPT_NAME} \
         --config_path=$config_path \
         --is_distributed=1 \
         --data_dir=$DATA_DIR \

model_zoo/research/cv/FaceRecognitionForTracking/src/dataset.py

@@ -38,9 +38,9 @@ def get_de_dataset(args):
                      VC.HWC2CHW()]
 
     de_dataset = de.ImageFolderDataset(dataset_dir=args.data_dir, num_shards=args.world_size,
-                                       shard_id=args.local_rank, shuffle=True)
-    de_dataset = de_dataset.map(input_columns="image", operations=transform_img)
-    de_dataset = de_dataset.map(input_columns="label", operations=transform_label)
+                                       shard_id=args.local_rank, shuffle=True, num_parallel_workers=4)
+    de_dataset = de_dataset.map(input_columns="image", operations=transform_img, num_parallel_workers=4)
+    de_dataset = de_dataset.map(input_columns="label", operations=transform_label, num_parallel_workers=4)
     de_dataset = de_dataset.project(columns=["image", "label"])
     de_dataset = de_dataset.batch(args.per_batch_size, drop_remainder=True)
 

model_zoo/research/cv/FaceRecognitionForTracking/train.py

@@ -22,7 +22,6 @@ import numpy as np
 
 import mindspore
 from mindspore import context
-from mindspore import Tensor
 from mindspore.context import ParallelMode
 from mindspore.train.serialization import load_checkpoint, load_param_into_net
 from mindspore.train.callback import ModelCheckpoint, RunContext, _InternalCallbackParam, CheckpointConfig
@@ -67,6 +66,9 @@ def init_argument():
     context.set_auto_parallel_context(parallel_mode=parallel_mode, device_num=config.world_size,
                                       gradients_mean=True)
 
+    if config.device_target == 'Ascend' and config.is_distributed:
+        context.set_auto_parallel_context(all_reduce_fusion_config=[1, 10])
+
     mindspore.common.set_seed(1)
 
     # logger
@@ -141,7 +143,13 @@ def run_train():
     de_dataset, steps_per_epoch, class_num = get_de_dataset(cfg)
     cfg.steps_per_epoch = steps_per_epoch
     cfg.logger.info('step per epoch: %s', cfg.steps_per_epoch)
-    de_dataloader = de_dataset.create_tuple_iterator()
+
+    # increase training speed for Ascend and distribute mode
+    if config.device_target == 'Ascend' and config.is_distributed:
+        de_dataloader = de_dataset.create_tuple_iterator(do_copy=False)
+    else:
+        de_dataloader = de_dataset.create_tuple_iterator()
+
     cfg.logger.info('class num original: %s', class_num)
     if class_num % 16 != 0:
         class_num = (class_num // 16 + 1) * 16
@@ -214,8 +222,6 @@ def run_train():
     cfg.logger.important_info('====start train====')
     for i, total_data in enumerate(de_dataloader):
         data, gt = total_data
-        data = Tensor(data)
-        gt = Tensor(gt)
 
         loss = train_net(data, gt)
         loss_meter.update(loss.asnumpy())