diff --git a/README.md b/README.md
index b227e40..9b526c3 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,7 @@
 [![python-url](https://img.shields.io/badge/Python-3.x-red.svg)](https://www.python.org/)
 [![pytorch-url](https://img.shields.io/badge/Pytorch>=1.4-blue.svg)](https://pytorch.org/)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](LICENSE)
+![Docker Pulls](https://img.shields.io/docker/pulls/cavall/cavaface_env?logo=docker).
 
 By Yaobin Li and Liying Chi
 
diff --git a/config.py b/config.py
index bd8493c..4875529 100644
--- a/config.py
+++ b/config.py
@@ -2,27 +2,27 @@
     1: dict(
         SEED=1337,
         SYNC_DATA=True,
-        SYNC_DATA_NUMCLASS=50 * 10000,  # 2059904,
+        SYNC_DATA_NUMCLASS=100 * 10000,  # 2059904,
         DATA_ROOT="../data/webface260m",
         VAL_SET="lfw, cfp_fp, agedb_30",
         MODEL_ROOT="../models/tmp/model",
         IS_RESUME=False,
         BACKBONE_RESUME_ROOT="",
         HEAD_RESUME_ROOT="",
-        BACKBONE_NAME="IR_50",  # support: ['MobileFaceNet', 'ResNet_50', 'ResNet_101', 'ResNet_152',
+        BACKBONE_NAME="IR_100",  # support: ['MobileFaceNet', 'ResNet_50', 'ResNet_101', 'ResNet_152',
         #'IR_50', 'IR_101', 'IR_152', 'IR_SE_50', 'IR_SE_100', 'IR_SE_101', 'IR_SE_152',
         #'AttentionNet_IR_56', 'AttentionNet_IRSE_56','AttentionNet_IR_92', 'AttentionNet_IRSE_92',
         #'ResNeSt_50', 'ResNeSt_101', 'ResNeSt_100']
-        HEAD_NAME="ArcFace",  # ArcFace, ParallelArcFace
-        LOSS_NAME="CrossEntropy",  # CrossEntropy, ParallelArcLoss
-        ENABLE_MODEL_PARALLEL=False,
+        HEAD_NAME="ParallelArcFace",  # ArcFace, ParallelArcFace
+        LOSS_NAME="ParallelArcLoss",  # CrossEntropy, ParallelArcLoss
+        ENABLE_MODEL_PARALLEL=True,
         MODEL_PARALLEL_DIM=1,  # -1/1/0
         ENABLE_AMP=True,
         OPTIMIZER="sgd",
-        ENABLE_ZERO_OPTIM=False,
+        ENABLE_ZERO_OPTIM=True,
         INPUT_SIZE=[112, 112],
         EMBEDDING_SIZE=512,
-        BATCH_SIZE=1024,
+        BATCH_SIZE=512,
         EVAL_FREQ=2000,
         LR=0.1,
         LR_SCHEDULER="cosine",
diff --git a/docs/INSTALL.md b/docs/INSTALL.md
index 690eaad..3393ee5 100644
--- a/docs/INSTALL.md
+++ b/docs/INSTALL.md
@@ -1,13 +1,3 @@
 # Installation
 
-## Requirements
-
-1. Install pytorch==1.4.0 and torchvision==0.5.0 following [official instruction](https://pytorch.org/).
-2. Clone this repo.
-3. Install dependencies:
-
-    ```python
-    pip install -r requirements.txt
-    ```
-
-4. (Option) If you are used to using docker, the dockerhub is [pytorch_env](https://hub.docker.com/r/cavall/pytorch_env) ![Docker Pulls](https://img.shields.io/docker/pulls/cavall/pytorch_env?logo=docker).
\ No newline at end of file
+Please pull docker images [cavaface_env](https://hub.docker.com/r/cavall/cavaface_env)
\ No newline at end of file
diff --git a/train.py b/train.py
index fe747d5..d3cc2ec 100644
--- a/train.py
+++ b/train.py
@@ -175,7 +175,6 @@ def print_pass(*args):
         {"params": backbone_paras_only_bn},
     ]
     if cfg["ENABLE_ZERO_OPTIM"]:
-        print("using ZeroRedundancyOptimizer")
         optimizer = ZeroRedundancyOptimizer(
             backbone.parameters(),
             optimizer_class=torch.optim.SGD,