File size: 2,066 Bytes
81159d5 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | #!/usr/bin/env bash
# parallel_collect.sh
# Usage: parallel_collect.sh <n_gpus> <total_seeds> <target_kept> <seed_timeout> <final_meta> \
# <merge_script> -- <collect_cmd_template>
#
# collect_cmd_template must accept:
# --out DIR --seeds A-B --max-kept N (plus any extra args before --)
# SHARD_OUT, SHARD_SEEDS, SHARD_TARGET are substituted per GPU
#
# Runs n_gpus parallel shards, each on its own GPU, merges results into final_meta dir.
N_GPUS=$1; TOTAL_SEEDS=$2; TARGET=$3; TIMEOUT=$4; FINAL_DIR=$5; MERGE_PY=$6
shift 6; [ "$1" = "--" ] && shift
CMD=("$@")
RUN=/lustre/fsw/portfolios/nvr/users/jtremblay/yu/1027_run
log() { echo "== $(date '+%F %T') [parallel_collect] $*"; }
# Split seeds across GPUs
PER=$((TOTAL_SEEDS / N_GPUS))
PER_TARGET=$((TARGET / N_GPUS + 2)) # slight over-collect per shard
PIDS=()
SHARD_DIRS=()
for gpu in $(seq 0 $((N_GPUS-1))); do
SSTART=$((gpu * PER))
SEND=$(( (gpu == N_GPUS-1) ? TOTAL_SEEDS-1 : (gpu+1)*PER - 1 ))
SHARD_DIR="${FINAL_DIR}_gpu${gpu}"
mkdir -p "$SHARD_DIR"
SHARD_DIRS+=("$SHARD_DIR")
log "GPU $gpu: seeds ${SSTART}-${SEND} -> $SHARD_DIR"
(
export CUDA_VISIBLE_DEVICES=$gpu
export OMNIGIBSON_GPU_ID=$gpu
bash $RUN/collect_with_skip.sh \
"$SHARD_DIR/collect_meta.json" \
"$PER_TARGET" \
"$TIMEOUT" -- \
"${CMD[@]}" \
--out "$SHARD_DIR" \
--seeds "${SSTART}-${SEND}" \
--max-kept "$PER_TARGET" \
2>&1 | tee "${RUN}/logs/$(basename $FINAL_DIR)_gpu${gpu}.log"
) &
PIDS+=($!)
# Stagger startup by 30s to avoid Isaac Sim init collisions
sleep 30
done
log "Waiting for ${#PIDS[@]} shards (PIDs: ${PIDS[*]})"
for pid in "${PIDS[@]}"; do
wait "$pid"
log "Shard PID $pid done"
done
log "All shards done. Merging into $FINAL_DIR"
python3 "$MERGE_PY" "${SHARD_DIRS[@]}" "$FINAL_DIR" "$TARGET"
log "Merge done. kept=$(python3 -c "import json; d=json.load(open('$FINAL_DIR/collect_meta.json')); print(d.get('n_kept',0))" 2>/dev/null)"
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