I can't reproduce the same result with almost the same surroundings! please help me,thank you!

[tjpulkl]

this is relate parameters :
CS_PATH='./dataset/LIP'
LR=1e-3
WD=5e-4
BS=14 #changed by lkl from 24 to 14 on 20191027
GPU_IDS=0,1,2,3
RESTORE_FROM='./dataset/resnet101-imagenet.pth'
INPUT_SIZE='384,384'
SNAPSHOT_DIR='./snapshots'
DATASET='train'
NUM_CLASSES=20
EPOCHS=150
But, The evaluate results are as following:
9600 processd
9920 processd
Pixel accuracy: 86.441436
Mean accuracy: 62.053916
Mean IU: 50.475799
almost 3%lower than the paper.
Could you please tell me some reasons about this problem?
The evaluate parameters are as following:
CS_PATH='./dataset/LIP'
BS=32
GPU_IDS='0'
INPUT_SIZE='384,384'
SNAPSHOT_FROM='./snapshots/LIP_epoch_149.pth'
DATASET='val'
NUM_CLASSES=20