[AMD][MI355X] kimik3-fp4-mi355x-vllm-agentic-mtp a4w4 MoE + lmcache 0.5.6

[seungrokj]

Summary

• Switch kimik3-fp4-mi355x-vllm-agentic-mtp to the canonical VLLM_ROCM_USE_AITER_MOE_SITUV2=1 flag so the SiTUv2 a4w4 FlyDSL MoE path is selected unambiguously, and drop the deprecated AITER_SITUV2_A8W4 override.
• Bump the vLLM ROCm image to nightly-rocm100-29468dde and LMCache to 0.5.6.dev101+rocm7.2.
• Trim the search space to a single lmcache DRAM dcp-size 8 arm at conc [70, 80], dram-utilization 0.50.

Test plan

• e2e run: test-config --config-files ./configs/amd-master.yaml --config-keys kimik3-fp4-mi355x-vllm-agentic-mtp --no-evals

🤖 Generated with Claude Code

[github-actions]

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[seungrokj]

Need LMC fix on rocm env.

[functionstackx]

InferenceX has switched away from unmaintainable bash scripts to YAML files that don't repeat the same stuff over and over again. Please merge the latest main into this PR: we have migrated single-node AgentX onto native srt-slurm (#3428), so AgentX configs are now declarative YAML recipes, not per-config 1000+ line bash slop scripts. Please also delete the old benchmarks/single_node/** scripts (see this recipe for the new format).

[functionstackx]

Sorry, over the weekend, there was 2 major refactors to clean up the technical debt accumalated over the past 11 months of moving at the speed of light. We don't see any major refactors in the forthseeable future besides cleaning up AMD multinode AgentX pile of bash. As much, due to the refactors, u would need to ask your agent to rebase from remote main@latest. Thank you in advance for ur understanding