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lm1-4b2-84b-c4-repetitions
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#!/bin/bash
#SBATCH --nodes=32 
#SBATCH --ntasks-per-node=1
#SBATCH --cpus-per-task=40 ##############
#SBATCH --mem=256G ##############
#SBATCH -p standard-g ##############
#SBATCH -t 48:00:00 ##############
#SBATCH --gpus-per-node=mi250:8 ##############
#SBATCH --exclusive=user
#SBATCH --hint=nomultithread ##############
#SBATCH --account=project_462000119 ##############
#SBATCH -o %j.out ##############
#SBATCH -e %j.err ##############

VARIANT=4b284b6bc4

# if run without sbatch, invoke here
if [ -z $SLURM_JOB_ID ]; then
    mkdir -p logs
    sbatch "$0"
    exit
fi

set -euo pipefail

# symlink logs/latest.out and logs/latest.err
ln -f -s $SLURM_JOB_ID.out logs/latest.out
ln -f -s $SLURM_JOB_ID.err logs/latest.err

KILL_SWITCH_PATH=kill-switch-$VARIANT
CHECKPOINT_PATH=checkpoints_$VARIANT
TENSORBOARD_PATH=tensorboard_$VARIANT

# Data
VOCAB_FILE="gpt2/vocab.json"
MERGE_FILE="gpt2/merges.txt"

TRAIN_DATA_PATH=train6b.txt
# "train: 1.0 0:1 gpt2tok_c4_en_6B_text_document"
VALID_DATA_PATH=val.txt
# "validation: 1.0 0:1 gpt2tok_c4validation_text_document"

PP_SIZE=1
TP_SIZE=2

MICRO_BATCH_SIZE=2
GRADIENT_ACCUMULATION_STEPS=1
WORLD_SIZE=$((SLURM_GPUS_ON_NODE*SLURM_JOB_NUM_NODES))
GLOBAL_BATCH_SIZE=$((MICRO_BATCH_SIZE*WORLD_SIZE*GRADIENT_ACCUMULATION_STEPS))

# Model parameters
source model_params.sh
MODEL_PARAM=("${PARAM_4516M[@]}")
NHIDDEN=${MODEL_PARAM[0]}
FFN_HIDDEN_SIZE=${MODEL_PARAM[1]}
KV_SIZE=${MODEL_PARAM[2]}
NHEADS=${MODEL_PARAM[3]}
NLAYERS=${MODEL_PARAM[4]}
SEQ_LEN=2048

echo "Model parameters: d_model $NHIDDEN ffw_size $FFN_HIDDEN_SIZE kv_size $KV_SIZE n_heads $NHEADS n_layers $NLAYERS"

SAVE_INTERVAL=10000

# Tokens: 84_000_000_000
# -> Samples: 41_015_625.0
TRAIN_SAMPLES=41_015_625

OPTIMIZER_ARGS=" \
    --optimizer adam \
    --adam-beta1 0.9 \
    --adam-beta2 0.95 \
    --adam-eps 1e-8 \
    --lr 2e-4 \
    --min-lr 2e-5 \
    --lr-decay-style cosine \
    --lr-decay-samples $TRAIN_SAMPLES \
    --lr-warmup-samples 410_156 \
    --clip-grad 1.0 \
    --weight-decay 1e-1 \
    "

GPT_ARGS=" \
    --num-layers $NLAYERS \
    --hidden-size $NHIDDEN \
    --num-attention-heads $NHEADS \
    --kv-channels $KV_SIZE \
    --ffn-hidden-size $FFN_HIDDEN_SIZE \
    --seq-length $SEQ_LEN \
    --max-position-embeddings $SEQ_LEN \
    --micro-batch-size $MICRO_BATCH_SIZE \
    --global-batch-size $GLOBAL_BATCH_SIZE \
    --train-samples $TRAIN_SAMPLES \
    --vocab-file $VOCAB_FILE \
    --merge-file $MERGE_FILE \
    --clip-grad 1.0 \
    --kill-switch-path $KILL_SWITCH_PATH \
    --bf16 \
    $OPTIMIZER_ARGS \
    "

OUTPUT_ARGS=" \
    --log-interval 10 \
    --save-interval $SAVE_INTERVAL \
    --eval-interval 1000 \
    --eval-iters 100 \
    --tensorboard-dir $TENSORBOARD_PATH \
    --tensorboard-queue-size 5 \
    --log-timers-to-tensorboard \
    --log-batch-size-to-tensorboard \
    --log-validation-ppl-to-tensorboard \
    "

ZERO_STAGE=0

mkdir -p ds_configs
DS_CONFIG_PATH="ds_configs/$SLURM_JOB_ID.json"

cat <<EOF > $DS_CONFIG_PATH
{
    "train_micro_batch_size_per_gpu": $MICRO_BATCH_SIZE,
    "train_batch_size": $GLOBAL_BATCH_SIZE,
    "gradient_clipping": 1.0,
    "zero_optimization": {
        "stage": $ZERO_STAGE
    },
    "bf16": {
        "enabled": true
    },
    "steps_per_print": 2000,
    "wall_clock_breakdown": false
}
EOF

DEEPSPEED_ARGS=" \
    --deepspeed \
    --deepspeed_config $DS_CONFIG_PATH \
    --zero-stage $ZERO_STAGE \
    "

CMD=" \
    Megatron-DeepSpeed/pretrain_gpt.py \
    --tensor-model-parallel-size $TP_SIZE \
    --pipeline-model-parallel-size $PP_SIZE \
    $GPT_ARGS \
    $OUTPUT_ARGS \
    --save $CHECKPOINT_PATH \
    --load $CHECKPOINT_PATH \
    --train-weighted-split-paths-path $TRAIN_DATA_PATH \
    --valid-weighted-split-paths-path $VALID_DATA_PATH \
    --data-impl mmap \
     $DEEPSPEED_ARGS \
    "

echo $CMD

echo "START $SLURM_JOBID: $(date)"

# bash launch_srun.sh $CMD
srun --label launch.sh $CMD

echo "END $SLURM_JOBID: $(date)"