colibrì Tested: Running GLM-5.2 Without a GPU
Lopsided_Dot_4557 · reddit · 2026-07-15
The author conducted full tests using the pure C colibrì engine, attempting to run GLM-5.2 744B MoE on a single machine without a GPU.
Key Concepts
- The 744B MoE only activates a few experts per token.
- The engine keeps the dense components (around 10GB) in memory.
- The remaining expert weights are streamed on-demand from local disk/NVMe.
- The full int4 model is about 370GB, but it doesn't all reside in memory at once.
More from Infra
- Strangeworks launches Aura to turn enterprise ops into production optimization systems — whurley · 2026-07-22
- Graph workload 854.graph500 enters SPEC CPU 2026 as a new CPU benchmark — Prof_DavidBader · 2026-07-22
- HilbertRaum open-sources a fully local AI chat and document analysis app for private use — Vladowski · 2026-07-22
- Hybrid and local inference are emerging as a response to AI energy and token costs — dmitry140 · 2026-07-22
- NVIDIA details Vera CPU with 2x performance claims and a 22,000-core rack — ryanshrout · 2026-07-22
- NVIDIA says Vera Rubin NVL72 delivers 10x more tokens per megawatt than Blackwell — nvidia · 2026-07-22