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LocalAI/backend/python/sglang/run.sh
Ettore Di Giacinto d47e2aa93f feat(backends): add sglang
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
2026-04-15 22:08:49 +00:00

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#!/bin/bash
backend_dir=$(dirname $(realpath $0))
if [ -d $backend_dir/common ]; then
source $backend_dir/common/libbackend.sh
else
source $backend_dir/../common/libbackend.sh
fi
# sglang's CPU kernel references LLVM OpenMP (__kmpc_*) symbols that are
# not declared in its NEEDED list — they get resolved through LD_PRELOAD
# of libiomp5.so in sglang's own docker/xeon.Dockerfile. Do the same here.
# Harmless on GPU builds where libiomp5.so is absent.
if [ -f "${backend_dir}/lib/libiomp5.so" ]; then
if [ -n "${LD_PRELOAD:-}" ]; then
export LD_PRELOAD="${backend_dir}/lib/libiomp5.so:${LD_PRELOAD}"
else
export LD_PRELOAD="${backend_dir}/lib/libiomp5.so"
fi
fi
# sglang CPU engine requires this env var to switch to the CPU backend.
# No-op on GPU builds. See docker/xeon.Dockerfile in sglang upstream.
if [ -f "${backend_dir}/lib/libiomp5.so" ]; then
export SGLANG_USE_CPU_ENGINE=1
fi
startBackend $@