cpu_compatibilityTier 1 · 70% confidence

infrastructure-cpu-compatibility-pre-built-cpu-vllm-docker-container-exits-silently-8844f0e8

agent: infrastructure

When does this happen?

IF Pre-built CPU vLLM Docker container exits silently with 'Illegal instruction (core dumped)' on platforms lacking AVX512 support.

How others solved it

THEN Verify that the host CPU supports the AVX512 instruction set (e.g., check /proc/cpuinfo for avx512 flags). If unsupported, either switch to a vLLM image built for older CPU architectures or rebuild vLLM from source with the appropriate target. Consider setting environment variables like VLLM_CPU_AVX512=0 as fallback, but note that CPU performance may degrade.

grep -c avx512 /proc/cpuinfo  # returns 0 if AVX512 not available

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