#!/bin/bash
set -e

CURRENT_DIR="$( cd "$( dirname "$0" )" && pwd )"
MEGATRON_PATH=$( dirname $( dirname ${CURRENT_DIR}))
export PYTHONPATH=$PYTHONPATH:${MEGATRON_PATH}:${MEGATRON_PATH}/Megatron-LM-240405
export CUDA_DEVICE_MAX_CONNECTIONS=1

ENV=$1
if [ $ENV = dsw ]; then
export CUDA_VISIBLE_DEVICES=0,1,2,3,4,5,6,7
MASTER_ADDR=localhost
MASTER_PORT=$(shuf -n 1 -i 10000-65535)
NNODES=1
NODE_RANK=0
GPUS_PER_NODE=8

elif [ $ENV = dlc ]; then

NNODES=${WORLD_SIZE}
NODE_RANK=${RANK}
GPUS_PER_NODE=${KUBERNETES_CONTAINER_RESOURCE_GPU}

fi

MODEL_SIZE=$2
BATCH_SIZE=$3
GLOBAL_BATCH_SIZE=$4
LR=$5
MIN_LR=$6
SEQ_LEN=$7
PAD_LEN=$8
PR=$9
TP=${10}
PP=${11}
EP=${12}
AC=${13}
DO=${14}
FL=${15}
SP=${16}
SAVE_INTERVAL=${17}
DATASET_PATH=${18}
PRETRAIN_CHECKPOINT_PATH=${19}
TRAIN_TOKENS=${20}
WARMUP_TOKENS=${21}
OUTPUT_BASEPATH=${22}

if [ $MODEL_SIZE = A21B ]; then

HIDDEN_SIZE=5120
NUM_ATTN_HEADS=128
NUM_LAYERS=60
INTERMEDIATE_SIZE=12288
MOE_INTERMEDIATE_SIZE=1536
MAX_POSITION_EMBEDDINGS=163840
EXTRA_VOCAB_SIZE=2400
Q_LORA_RANK=1536
KV_LORA_RANK=512
QK_NOPE_HEAD_DIM=128
QK_ROPE_HEAD_DIM=64
V_HEAD_DIM=128
ROPE_THETA=10000
SCALE_FACTOR=40
NUM_EXPERTS=160
ROUTER_TOPK=6
NUM_SHARED_EXPERTS=2
MOE_LAYER_FREQ=1

moe_options=" \
    --moe-ffn-hidden-size ${MOE_INTERMEDIATE_SIZE} \
    --enable-shared-expert \
    --moe-layer-freq ${MOE_LAYER_FREQ} \
    --num-shared-experts ${NUM_SHARED_EXPERTS} \
    --moe-router-topk ${ROUTER_TOPK} \
    --num-experts ${NUM_EXPERTS} \
    --moe-aux-loss-coeff 1e-2 \
    --expert-model-parallel-size ${EP} \
    --q-lora-rank ${Q_LORA_RANK} \
    --kv-lora-rank ${KV_LORA_RANK} \
    --qk-nope-head-dim ${QK_NOPE_HEAD_DIM} \
    --qk-rope-head-dim ${QK_ROPE_HEAD_DIM} \
    --v-head-dim ${V_HEAD_DIM} \
    --moe-router-load-balancing-type aux_loss"


elif [ $MODEL_SIZE = A2.4B ]; then

HIDDEN_SIZE=2048
NUM_ATTN_HEADS=16
NUM_LAYERS=27
INTERMEDIATE_SIZE=10944
MOE_INTERMEDIATE_SIZE=1408
MAX_POSITION_EMBEDDINGS=163840
EXTRA_VOCAB_SIZE=2400
KV_LORA_RANK=512
QK_NOPE_HEAD_DIM=128
QK_ROPE_HEAD_DIM=64
V_HEAD_DIM=128
ROPE_THETA=10000
SCALE_FACTOR=40
NUM_EXPERTS=64
ROUTER_TOPK=6
NUM_SHARED_EXPERTS=2
MOE_LAYER_FREQ=1

moe_options=" \
    --moe-ffn-hidden-size ${MOE_INTERMEDIATE_SIZE} \
    --enable-shared-expert \
    --moe-layer-freq ${MOE_LAYER_FREQ} \
    --num-shared-experts ${NUM_SHARED_EXPERTS} \
    --moe-router-topk ${ROUTER_TOPK} \
    --num-experts ${NUM_EXPERTS} \
    --moe-aux-loss-coeff 1e-2 \
    --expert-model-parallel-size ${EP} \
    --kv-lora-rank ${KV_LORA_RANK} \
    --qk-nope-head-dim ${QK_NOPE_HEAD_DIM} \
    --qk-rope-head-dim ${QK_ROPE_HEAD_DIM} \
    --v-head-dim ${V_HEAD_DIM} \
    --moe-router-load-balancing-type aux_loss"

fi

if [ $AC = full ]; then
    activation_checkpoint_options=" \
		    --recompute-method uniform \
		    --recompute-granularity full"
elif [ $AC = sel ]; then
    activation_checkpoint_options=" \
        --recompute-activations"
elif [ $AC = none ]; then
    activation_checkpoint_options=" \
    "
fi

if [ $PR = fp16 ]; then
    pr_options=" \
		    --fp16 \
            --apply-query-key-layer-scaling"
    export NVTE_APPLY_QK_LAYER_SCALING=1
elif [ $PR = bf16 ]; then
    pr_options=" \
        --bf16"
elif [ $PR = fp8 ]; then
    pr_options=" \
        --bf16
        --fp8-hybrid \
        --fp8-amax-compute-algo max \
        --fp8-amax-history-len 1024 \
        --transformer-impl transformer_engine"
fi

if [ $DO = true ]; then
    do_options=" \
		    --use-distributed-optimizer"

elif [ $DO = false ]; then
    do_options=" \
                    "
fi

if [ $FL = true ]; then
    flash_options=" \
		    --use-flash-attn"

elif [ $FL = false ]; then
    flash_options=" \
                    "
fi


if [ $SP = true ] && [ $TP -gt 1 ]; then
    sp_options=" \
		    --sequence-parallel"

elif [ $SP = false ]; then
    sp_options=" \
                    "
fi

if [ $PRETRAIN_CHECKPOINT_PATH != none ]; then
    load_options=" \
            --load $PRETRAIN_CHECKPOINT_PATH"
fi

TRAIN_ITERS=$(( ${TRAIN_TOKENS} / ${GLOBAL_BATCH_SIZE} / ${SEQ_LEN} ))
LR_WARMUP_ITERS=$(( ${WARMUP_TOKENS}  / ${GLOBAL_BATCH_SIZE} / ${SEQ_LEN} ))
LR_DECAY_ITERS=$(( ${TRAIN_TOKENS} /  ${GLOBAL_BATCH_SIZE} / ${SEQ_LEN} ))

NAME="${ENV}-pretrain-mcore-deepseek-${MODEL_SIZE}-lr-${LR}-minlr-${MIN_LR}-bs-${BATCH_SIZE}-gbs-${GLOBAL_BATCH_SIZE}-seqlen-${SEQ_LEN}-pr-${PR}-tp-${TP}-pp-${PP}-ac-${AC}-do-${DO}-sp-${SP}-moe-${MOE}-tt-${TRAIN_TOKENS}-wt-${WARMUP_TOKENS}"
mkdir -p "${OUTPUT_BASEPATH}/tensorboard/"
mkdir -p "${OUTPUT_BASEPATH}/checkpoint/"
mkdir -p "${OUTPUT_BASEPATH}/log/"
current_time=$(date "+%Y.%m.%d-%H.%M.%S")
TENSORBOARD_DIR="${OUTPUT_BASEPATH}/tensorboard/${NAME}_${current_time}"
mkdir -p ${TENSORBOARD_DIR}

SAVED_PRETRAIN_CHECKPOINT_PATH="${OUTPUT_BASEPATH}/checkpoint/${NAME}"

megatron_options="  \
        --save ${SAVED_PRETRAIN_CHECKPOINT_PATH} \
        --data-path ${DATASET_PATH} \
        --lr ${LR} \
        --min-lr ${MIN_LR} \
        --lr-decay-style cosine \
        --adam-beta1 0.9 \
        --adam-beta2 0.95 \
        --weight-decay 0.1 \
        --clip-grad 1.0 \
        --init-method-std 0.008 \
        --attention-dropout 0.0 \
        --hidden-dropout 0.0 \
        --lr-decay-iters ${LR_DECAY_ITERS} \
        --lr-warmup-iters ${LR_WARMUP_ITERS} \
        --train-iters ${TRAIN_ITERS} \
        --split 99,1,0 \
        --micro-batch-size ${BATCH_SIZE} \
        --global-batch-size ${GLOBAL_BATCH_SIZE} \
        --num-layers ${NUM_LAYERS} \
        --hidden-size ${HIDDEN_SIZE} \
        --num-attention-heads ${NUM_ATTN_HEADS} \
        --ffn-hidden-size ${INTERMEDIATE_SIZE} \
        --seq-length ${SEQ_LEN} \
        --max-position-embeddings ${MAX_POSITION_EMBEDDINGS} \
        --max-padding-length ${PAD_LEN} \
        --log-interval 1 \
        --eval-interval 10000 \
        --eval-iters 10 \
        --save-interval ${SAVE_INTERVAL} \
        --tensorboard-queue-size 1 \
        --tensorboard-dir ${TENSORBOARD_DIR} \
        --log-timers-to-tensorboard \
        --log-batch-size-to-tensorboard \
        --log-validation-ppl-to-tensorboard \
        --tensor-model-parallel-size ${TP} \
        --pipeline-model-parallel-size ${PP} \
        --no-load-optim \
        --no-load-rng \
        --num-workers 8 \
        --extra-vocab-size ${EXTRA_VOCAB_SIZE} \
        --patch-tokenizer-type DeepSeekV2Tokenizer \
        --dataset LLama-Pretrain-Idxmap \
        --swiglu \
        --normalization RMSNorm \
        --norm-epsilon 1e-06 \
        --use-rotary-position-embeddings \
        --no-bias-swiglu-fusion \
        --no-rope-fusion \
        --position-embedding-type rope \
        --untie-embeddings-and-output-weights \
        --disable-bias-linear \
        --use-mcore-models \
        --rotary-base ${ROPE_THETA} \
        --rotary-scaling-factor ${SCALE_FACTOR} \
        --transformer-impl transformer_engine \
        "


DISTRIBUTED_ARGS="--nproc_per_node $GPUS_PER_NODE --nnodes $NNODES --node_rank $NODE_RANK --master_addr $MASTER_ADDR --master_port $MASTER_PORT"

run_cmd="torchrun $DISTRIBUTED_ARGS pretrain_deepseek.py
 ${megatron_options} ${pr_options} ${load_options} ${activation_checkpoint_options} ${do_options} ${flash_options} ${sp_options} ${moe_options}"

echo ${run_cmd}
eval ${run_cmd}
set +x
