#!/bin/bash

function usage(){
        echo "usage: paddle [--help] [<args>]"
        echo "These are common paddle commands used in various situations:"
        echo "    train             Start a paddle_trainer"
        echo "    merge_model       Start a paddle_merge_model"
        echo "    pserver           Start a paddle_pserver_main"
        echo "    version           Print paddle version"
        echo "    dump_config       Dump the trainer config as proto string"
        echo "    make_diagram      Make Diagram using Graphviz"
        echo ""
        echo "'paddle train --help' 'paddle merge_model --help', 'paddle pserver --help', list more detailed usage of each command"
}


function version(){
        echo "PaddlePaddle @PADDLE_VERSION@, compiled with"
        echo "    with_avx: @WITH_AVX@"
        echo "    with_gpu: @WITH_GPU@"
        echo "    with_mkl: @WITH_MKL@"
        echo "    with_mkldnn: @WITH_MKLDNN@"
        echo "    with_double: @WITH_DOUBLE@"
        echo "    with_python: @WITH_PYTHON@"
        echo "    with_rdma: @WITH_RDMA@"
        echo "    with_timer: @WITH_TIMER@"
}

function ver2num() {
  set -e
  # convert version to number.
  if [ -z "$1" ]; then # empty argument
    printf "%03d%03d%03d%03d%03d" 0
  else
    local VERN=$(echo $1 | sed 's#v##g' | sed 's#\.# #g' \
        | sed 's#a# 0 #g' | sed 's#b# 1 #g' | sed 's#rc# 2 #g')
    if [ `echo $VERN | wc -w` -eq 3 ] ; then
      printf "%03d%03d%03d%03d%03d" $VERN 999 999
    else
      printf "%03d%03d%03d%03d%03d" $VERN
    fi
  fi
  set +e
}

function cpu_config() {
  # auto set KMP_AFFINITY and OMP_DYNAMIC from Hyper Threading Status
  # only when MKL enabled
  if [ "@WITH_MKL@" == "OFF" ]; then
    return 0
  fi
  platform="`uname -s`"
  ht=0
  if [ $platform == "Linux" ]; then
    ht=`lscpu |grep "per core"|awk -F':' '{print $2}'|xargs`
  elif [ $platform == "Darwin" ]; then
    if [`sysctl -n hw.physicalcpu` -eq `sysctl -n hw.logicalcpu`]; then
      # HT is OFF
      ht=1
    fi
  else
    return 0
  fi
  if [ $ht -eq 1 ]; then # HT is OFF
    if [ -z "$KMP_AFFINITY" ]; then
      export KMP_AFFINITY="granularity=fine,compact,0,0"
    fi
    if [ -z "$OMP_DYNAMIC" ]; then
      export OMP_DYNAMIC="FALSE"
    fi
  else # HT is ON
    if [ -z "$KMP_AFFINITY" ]; then
      export KMP_AFFINITY="granularity=fine,compact,1,0"
    fi
    if [ -z "$OMP_DYNAMIC" ]; then
      export OMP_DYNAMIC="True"
    fi
  fi
}

function threads_config() {
  # auto set OMP_NUM_THREADS and MKL_NUM_THREADS
  # according to trainer_count and total processors
  # only when MKL enabled
  # auto set OPENBLAS_NUM_THREADS when do not use MKL
  platform="`uname -s`"
  processors=0
  if [ $platform == "Linux" ]; then
    processors=`grep "processor" /proc/cpuinfo|sort -u|wc -l`
  elif [ $platform == "Darwin" ]; then
    processors=`sysctl -n hw.logicalcpu`
  else
    return 0
  fi
  trainers=`grep -Eo 'trainer_count.[0-9]+' <<< "$@" |grep -Eo '[0-9]+'|xargs`
  if [ -z $trainers ]; then
    trainers=1
  fi
  threads=$((processors / trainers))
  if [ $threads -eq 0 ]; then
    threads=1
  fi
  if [ "@WITH_MKL@" == "ON" ]; then
    if [ -z "$OMP_NUM_THREADS" ]; then
      export OMP_NUM_THREADS=$threads
    fi
    if [ -z "$MKL_NUM_THREADS" ]; then
      export MKL_NUM_THREADS=$threads
    fi
  else
    if [ -z "$OPENBLAS_NUM_THREADS" ]; then
      export OPENBLAS_NUM_THREADS=$threads
    fi
    if [ $threads -gt 1 ] && [ -z "$OPENBLAS_MAIN_FREE" ]; then
      export OPENBLAS_MAIN_FREE=1
    fi
  fi
  
}

PADDLE_CONF_HOME="$HOME/.config/paddle"
mkdir -p ${PADDLE_CONF_HOME}

if [ -z "${PADDLE_NO_STAT+x}" ]; then
    SERVER_VER=`curl -m 5 -X POST --data content="{ \"version\": \"@PADDLE_VERSION@\" }"\
        -b ${PADDLE_CONF_HOME}/paddle.cookie \
        -c ${PADDLE_CONF_HOME}/paddle.cookie \
        http://api.paddlepaddle.org/version 2>/dev/null`
    if [ $? -eq 0 ] && [ "$(ver2num @PADDLE_VERSION@)" -lt  $(ver2num $SERVER_VER) ]; then
      echo "Paddle release a new version ${SERVER_VER}, you can get the install package in http://www.paddlepaddle.org"
    fi
fi

PADDLE_BIN_PATH="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

if [ ! -z "${DEBUGGER}" ]; then
    echo "Using debug command ${DEBUGGER}"
fi

CUDNN_LIB_PATH="@CUDNN_LIB_PATH@"

if [ ! -z "${CUDNN_LIB_PATH}" ]; then
    export LD_LIBRARY_PATH=${CUDNN_LIB_PATH}:${LD_LIBRARY_PATH}
fi

export PYTHONPATH=${PWD}:${PYTHONPATH}


# Check python lib installed or not.
pip --help > /dev/null
if [ $? -ne 0 ]; then
    echo "pip should be installed to run paddle."
    exit 1
fi

INSTALLED_VERSION=`pip freeze 2>/dev/null | grep '^paddle' | sed 's/.*==//g'`

if [ -z ${INSTALLED_VERSION} ]; then
   INSTALLED_VERSION="0.0.0"  # not installed
fi
cat <<EOF | python -
from distutils.version import LooseVersion
import sys
if LooseVersion("${INSTALLED_VERSION}") < LooseVersion("@PADDLE_VERSION@"):
  sys.exit(1)
else:
  sys.exit(0)
EOF

cpu_config
# echo $KMP_AFFINITY $OMP_DYNAMIC

case "$1" in
    "train")
        threads_config $@
        # echo $OMP_NUM_THREADS $MKL_NUM_THREADS $OPENBLAS_NUM_THREADS
        ${DEBUGGER} $PADDLE_BIN_PATH/paddle_trainer ${@:2}
        ;;
    "merge_model")
        ${DEBUGGER} $PADDLE_BIN_PATH/paddle_merge_model ${@:2}
        ;;
    "pserver")
        ${DEBUGGER} $PADDLE_BIN_PATH/paddle_pserver_main ${@:2}
        ;;
    "dump_config")
        python -m paddle.utils.dump_config ${@:2}
        ;;
    "make_diagram")
        python -m paddle.utils.make_model_diagram ${@:2}
        ;;
    "version")
        version
        ;;
    "--help")
        usage
        ;;
    *)
        usage
        ;;
 esac
