Commit Graph

4 Commits

Author SHA1 Message Date
Jeffrey Morgan
64737330a4 Re-apply "model: add MLA absorption for glm4moelite" with fix (#13870)
The nvidia_fp32 config for (576, 512) head sizes had nbatch_fa=32,
which caused zero-sized arrays when computing array dimensions:
  nbatch_fa / (np * warp_size) = 32 / (2 * 32) = 0

This resulted in CUDA compilation failures on CUDA 12 (Windows and
Linux arm64):
- "static assertion failed with nbatch_fa % (np*warp_size) != 0"
- "the size of an array must be greater than zero"

Fix by changing nbatch_fa from 32 to 64 for all (576, 512) configs
in the nvidia_fp32 function, matching the nvidia_fp16 and AMD configs.
2026-01-23 18:40:28 -08:00
Jeffrey Morgan
2eda97f1c3 Revert "model: add MLA absorption for glm4moelite (#13810)" (#13869)
This reverts commit 1044b0419a.
2026-01-23 17:14:15 -08:00
Jeffrey Morgan
1044b0419a model: add MLA absorption for glm4moelite (#13810)
* model: add MLA absorption for glm4moelite

Split the combined KV_B tensor into separate K_B and V_B tensors
during conversion, enabling MLA (Multi-head Latent Attention)
absorption which compresses the KV cache for improved efficiency.

* ggml: enable MLA flash attention for GLM-4.7-flash

Add support for gqa_ratio 4 in MLA flash attention kernels. GLM-4.7-flash
uses head size 576 with gqa_ratio 4, which was previously only supported
for gqa_ratio 16 (DeepSeek).

Metal changes:
- Enable head size 576 for flash attention
- Increase simdgroups to 8 for large heads (>=512)
- Add case 8 kernel dispatch for 8 simdgroups

CUDA changes:
- Add gqa_ratio 4 support for head 576/512
- Add tile configs for (576, 512, 4) and (576, 512, 8)
- Add MMA config cases for ncols 4
- Add template instances for ncols2=4

* model: add compatibility validation for glm4moelite architecture
2026-01-23 14:47:42 -08:00
Jeffrey Morgan
4f138a1749 model: add Glm4MoeLiteForCausalLM architecture to support GLM-4.7-Flash (#13779) 2026-01-19 12:47:17 -08:00