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mtmd : Support Pixtral 12B (#13065)

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* add pixtral text model (vision is wip)

* cgraph ok, just missing 2D RoPE

* fix bad rebase

* first working version

* fix problem with img_break token

* support dynamic image size

* update docs

* update test script
This commit is contained in:
Xuan-Son Nguyen
2025-04-23 20:21:59 +02:00
committed by GitHub
parent eb1776b15a
commit ecda2ec4b3
14 changed files with 643 additions and 31 deletions
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4
examples/llava/clip-impl.h
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@ -60,6 +60,7 @@
#define TN_ATTN_V "%s.blk.%d.attn_v.%s"
#define TN_ATTN_OUTPUT "%s.blk.%d.attn_out.%s"
#define TN_FFN_DOWN "%s.blk.%d.ffn_down.%s"
#define TN_FFN_GATE "%s.blk.%d.ffn_gate.%s"
#define TN_FFN_UP "%s.blk.%d.ffn_up.%s"
#define TN_LN_1 "%s.blk.%d.ln1.%s"
#define TN_LN_2 "%s.blk.%d.ln2.%s"
@ -73,6 +74,7 @@
#define TN_MM_INP_PROJ "mm.input_projection.weight" // gemma3
#define TN_MM_SOFT_EMB_N "mm.soft_emb_norm.weight" // gemma3
#define TN_MM_PROJECTOR "mm.model.fc.weight" // idefics3
#define TN_TOK_IMG_BREAK "v.token_embd.img_break" // pixtral
// mimicpmv
#define TN_MINICPMV_POS_EMBD_K "resampler.pos_embed_k"
@ -101,6 +103,7 @@ enum projector_type {
PROJECTOR_TYPE_MERGER,
PROJECTOR_TYPE_GEMMA3,
PROJECTOR_TYPE_IDEFICS3,
PROJECTOR_TYPE_PIXTRAL,
PROJECTOR_TYPE_UNKNOWN,
};
@ -113,6 +116,7 @@ static std::map<projector_type, std::string> PROJECTOR_TYPE_NAMES = {
{ PROJECTOR_TYPE_MERGER, "qwen2vl_merger"},
{ PROJECTOR_TYPE_GEMMA3, "gemma3"},
{ PROJECTOR_TYPE_IDEFICS3, "idefics3"},
{ PROJECTOR_TYPE_PIXTRAL, "pixtral"},
};
static projector_type clip_projector_type_from_string(const std::string & str) {