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model : fix SWA not being enabled for EXAONE 4.5

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load_arch_hparams tests `hparams.n_layer() == 64` before
LLM_KV_NEXTN_PREDICT_LAYERS has been read. n_layer() returns
n_layer_all - n_layer_nextn and n_layer_nextn defaults to 0, so a GGUF
carrying the MTP head (block_count=65, nextn=1) evaluates to 65 and the
whole SWA block is skipped. The model type switch further down in the
same function reads 64, because by then the key has been loaded.

n_swa is still filled in by the unconditional get_key below the block, so
llama_model_n_swa() reports 4096 and the logs look correct while only
swa_type stays LLAMA_SWA_TYPE_NONE.

This affects the official LGAI-EXAONE GGUF release as well. EXAONE 4.0 has
no MTP head, so block_count is 64 there and the check matches.
This commit is contained in:
Junmo Kim
2026-08-10 18:54:24 +09:00
parent d2f83055d6
commit 56505fdad5
1 changed files with 3 additions and 3 deletions
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src/models/exaone4.cpp
+3 -3
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@@ -1,6 +1,9 @@
#include "models.h"
void llama_model_exaone4::load_arch_hparams(llama_model_loader & ml) {
ml.get_key(LLM_KV_NEXTN_PREDICT_LAYERS, hparams.n_layer_nextn, false);
GGML_ASSERT(hparams.n_layer_nextn < hparams.n_layer_all && "n_layer_nextn must be < n_layer");
if (hparams.n_layer() == 64) { // 32B
hparams.swa_type = LLAMA_SWA_TYPE_STANDARD;
hparams.n_swa = 4096;
@@ -15,9 +18,6 @@ void llama_model_exaone4::load_arch_hparams(llama_model_loader & ml) {
ml.get_key(LLM_KV_ATTENTION_SLIDING_WINDOW, hparams.n_swa, false);
ml.get_key(LLM_KV_ATTENTION_LAYERNORM_RMS_EPS, hparams.f_norm_rms_eps);
ml.get_key(LLM_KV_NEXTN_PREDICT_LAYERS, hparams.n_layer_nextn, false);
GGML_ASSERT(hparams.n_layer_nextn < hparams.n_layer_all && "n_layer_nextn must be < n_layer");
switch (hparams.n_layer()) {
case 30: type = LLM_TYPE_1_2B; break;