Files
bee/iso/overlay/usr/local/bin/bee-gpu-burn
2026-03-31 11:15:15 +03:00

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#!/bin/sh
set -eu
SECONDS=5
SIZE_MB=64
DEVICES=""
EXCLUDE=""
WORKER="/usr/local/lib/bee/bee-gpu-burn-worker"
usage() {
echo "usage: $0 [--seconds N] [--size-mb N] [--devices 0,1] [--exclude 2,3]" >&2
exit 2
}
normalize_list() {
echo "${1:-}" | tr ',' '\n' | sed 's/[[:space:]]//g' | awk 'NF' | sort -n | uniq | paste -sd, -
}
contains_csv() {
needle="$1"
haystack="${2:-}"
echo ",${haystack}," | grep -q ",${needle},"
}
while [ "$#" -gt 0 ]; do
case "$1" in
--seconds|-t) [ "$#" -ge 2 ] || usage; SECONDS="$2"; shift 2 ;;
--size-mb|-m) [ "$#" -ge 2 ] || usage; SIZE_MB="$2"; shift 2 ;;
--devices) [ "$#" -ge 2 ] || usage; DEVICES="$2"; shift 2 ;;
--exclude) [ "$#" -ge 2 ] || usage; EXCLUDE="$2"; shift 2 ;;
*) usage ;;
esac
done
[ -x "${WORKER}" ] || { echo "bee-gpu-burn worker not found: ${WORKER}" >&2; exit 1; }
ALL_DEVICES=$(nvidia-smi --query-gpu=index --format=csv,noheader,nounits 2>/dev/null | sed 's/[[:space:]]//g' | awk 'NF' | paste -sd, -)
[ -n "${ALL_DEVICES}" ] || { echo "nvidia-smi found no NVIDIA GPUs" >&2; exit 1; }
DEVICES=$(normalize_list "${DEVICES}")
EXCLUDE=$(normalize_list "${EXCLUDE}")
SELECTED="${DEVICES}"
if [ -z "${SELECTED}" ]; then
SELECTED="${ALL_DEVICES}"
fi
FINAL=""
for id in $(echo "${SELECTED}" | tr ',' ' '); do
[ -n "${id}" ] || continue
if contains_csv "${id}" "${EXCLUDE}"; then
continue
fi
if [ -z "${FINAL}" ]; then
FINAL="${id}"
else
FINAL="${FINAL},${id}"
fi
done
[ -n "${FINAL}" ] || { echo "no NVIDIA GPUs selected after filters" >&2; exit 1; }
echo "loader=bee-gpu-burn"
echo "selected_gpus=${FINAL}"
TMP_DIR=$(mktemp -d)
trap 'rm -rf "${TMP_DIR}"' EXIT INT TERM
WORKERS=""
for id in $(echo "${FINAL}" | tr ',' ' '); do
log="${TMP_DIR}/gpu-${id}.log"
echo "starting gpu ${id}"
"${WORKER}" --device "${id}" --seconds "${SECONDS}" --size-mb "${SIZE_MB}" >"${log}" 2>&1 &
pid=$!
WORKERS="${WORKERS} ${pid}:${id}:${log}"
done
status=0
for spec in ${WORKERS}; do
pid=${spec%%:*}
rest=${spec#*:}
id=${rest%%:*}
log=${rest#*:}
if wait "${pid}"; then
echo "gpu ${id} finished: OK"
else
rc=$?
echo "gpu ${id} finished: FAILED rc=${rc}"
status=1
fi
sed "s/^/[gpu ${id}] /" "${log}" || true
done
exit "${status}"