TensorRT-LLMs/tensorrt_llm/llmapi/trtllm-llmapi-launch
Kaiyu Xie 2631f21089
Update (#2978)
Signed-off-by: Kaiyu Xie <26294424+kaiyux@users.noreply.github.com>
2025-03-23 16:39:35 +08:00

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#!/bin/bash
set -ex
task_with_command="${@:1}"
native_mpi_rank=$OMPI_COMM_WORLD_RANK
mpi_rank=${SLURM_PROCID:-${OMPI_COMM_WORLD_RANK:-${PMI_RANK:-${PMI_ID:-0}}}}
log_stderr() { echo "$@" >&2; }
log_stderr "mpi_rank: $mpi_rank"
pid=$(ps -o pid= -p $$ | tr -d ' ')
# Tell TRTLLM to spawn a additional process for the Proxy
export TLLM_SPAWN_PROXY_PROCESS=1
export TLLM_SPAWN_PROXY_PROCESS_IPC_ADDR="ipc:///tmp/trtllm-ipc-${pid}"
function mpi_size {
if [ -n "$SLURM_JOB_NUM_NODES" ]; then
echo "$SLURM_JOB_NUM_NODES"
elif [ -n "$OMPI_COMM_WORLD_SIZE" ]; then
echo "$OMPI_COMM_WORLD_SIZE"
else
echo "1"
fi
}
export tllm_mpi_size=$(mpi_size)
log_stderr "tllm_mpi_size: $tllm_mpi_size"
if [ -z "$mpi_rank" ] || [ "$mpi_rank" -eq 0 ]; then
log_stderr "rank${mpi_rank} run ${task_with_command} in background"
# MPI doesn't allow spawn a process sharing the MPI environment in a MPI
# process, or duplicate MPI_Init in the child process will cause undefined
# behavior. Thus we need to clean the MPI environment in the parent process
# before spawning the child process, and restore the MPI environment later
# before running MPI operations in the parent process.
mpi_blacklist=(
OMPI_ PMIX_ PMI_ SLURM_ MPI_ UCX_
I_MPI_ HYDRA_ KMP_ MPICH_ MV2_ CRAY_
)
(
# Remove MPI-related variables only in the subshell context
for var in $(compgen -e); do
for prefix in "${mpi_blacklist[@]}"; do
if [[ "$var" == "$prefix"* ]]; then
unset "$var"
break
fi
done
done
# Execute the task with cleaned environment
$task_with_command
) &
log_stderr "rank${mpi_rank} run mgmn leader node with mpi_world_size: $(mpi_size) ..."
python3 -m tensorrt_llm.llmapi.mgmn_leader_node
else
log_stderr "rank${mpi_rank} run mgmn worker node with mpi_world_size: $(mpi_size) ..."
python3 -m tensorrt_llm.llmapi.mgmn_worker_node
fi