Add arch support for cohere2-MoE (#24260)

* Add arch support for cohere2-MoE

* Removed redundant gating_func checks

* Changed ffn lookup to prefer prefix_dense_intermediate_size

* Renamed arch to cohere2moe

* Removed redundant lmhead check and chat template changes

* Removed lm_head.weight check from modify tensors, load output tensor not required, fallback to token_embd.weight

* Changed to (routed+shared)*0.5 for shared expert combined avg

* fixed sliding_window_pattern issue and pattern

* Fixed transformers crash 'first_k_dense_replace' error

* Remove comment

* Removed cohere2-moe as a tokenizer type and kept as tiny_aya.  Renamed North-Mini-Code-1.0.

* Fixed MTP fail, changed to use iSWA

* Fixed remaining todos: cohere2moe renamed, changed swa parsing to use get_key_or_arr, removed extra get_arr use

* Force metadata usage

Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>

* Remove Cohere2 checkpoint comment

Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>

* Remove MTP comment

Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>

* Regenerate cohere2moe tokenizer hash

* Add cohere2moe to Llama Model Saver supported list

* Check for zerobios tensors and add support for Command to use LayerNorm

* Map expert_selection_fn to sigmoid in base.py instead of command.py

* use bools for foundnorm/foundnormrms

Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>

---------

Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>
This commit is contained in:
Michael Wand
2026-06-13 10:49:00 -07:00
committed by GitHub
parent f05cf4676a
commit 4988f6e866
13 changed files with 632 additions and 7 deletions

View File

@@ -457,6 +457,7 @@ class MODEL_ARCH(IntEnum):
XVERSE = auto()
COMMAND_R = auto()
COHERE2 = auto()
COHERE2MOE = auto()
DBRX = auto()
OLMO = auto()
OLMO2 = auto()
@@ -1012,6 +1013,7 @@ MODEL_ARCH_NAMES: dict[MODEL_ARCH, str] = {
MODEL_ARCH.XVERSE: "xverse",
MODEL_ARCH.COMMAND_R: "command-r",
MODEL_ARCH.COHERE2: "cohere2",
MODEL_ARCH.COHERE2MOE: "cohere2moe",
MODEL_ARCH.DBRX: "dbrx",
MODEL_ARCH.OLMO: "olmo",
MODEL_ARCH.OLMO2: "olmo2",
@@ -2872,6 +2874,33 @@ MODEL_TENSORS: dict[MODEL_ARCH, list[MODEL_TENSOR]] = {
MODEL_TENSOR.FFN_DOWN,
MODEL_TENSOR.FFN_UP,
],
MODEL_ARCH.COHERE2MOE: [
MODEL_TENSOR.TOKEN_EMBD,
MODEL_TENSOR.OUTPUT_NORM,
MODEL_TENSOR.OUTPUT,
MODEL_TENSOR.ATTN_NORM,
MODEL_TENSOR.ATTN_Q,
MODEL_TENSOR.ATTN_K,
MODEL_TENSOR.ATTN_V,
MODEL_TENSOR.ATTN_OUT,
MODEL_TENSOR.FFN_GATE,
MODEL_TENSOR.FFN_DOWN,
MODEL_TENSOR.FFN_UP,
MODEL_TENSOR.FFN_GATE_INP,
MODEL_TENSOR.FFN_GATE_EXP,
MODEL_TENSOR.FFN_GATE_UP_EXP,
MODEL_TENSOR.FFN_DOWN_EXP,
MODEL_TENSOR.FFN_UP_EXP,
MODEL_TENSOR.FFN_GATE_SHEXP,
MODEL_TENSOR.FFN_DOWN_SHEXP,
MODEL_TENSOR.FFN_UP_SHEXP,
MODEL_TENSOR.NEXTN_EH_PROJ,
MODEL_TENSOR.NEXTN_EMBED_TOKENS,
MODEL_TENSOR.NEXTN_ENORM,
MODEL_TENSOR.NEXTN_HNORM,
MODEL_TENSOR.NEXTN_SHARED_HEAD_HEAD,
MODEL_TENSOR.NEXTN_SHARED_HEAD_NORM,
],
MODEL_ARCH.DBRX: [
MODEL_TENSOR.TOKEN_EMBD,
MODEL_TENSOR.OUTPUT_NORM,