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llama : add support for EmbeddingGemma 300m (#15798)

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This commit add support for the EmbeddingGemma 300m. This model supports
sliding window attention (SWA) and a new swq_type is introduced to
support symmetric SWA masking.

This commit also extracts the code from the function
llama_is_masked_swa in llama-impl.h, so that the logic can be shared
by both llm_graph_input_attn_no_cache::set_input and
llama_kv_cache::set_input_kq_mask.

With this commit the EmbeddingGemma 300m model can be converted to
to GGUF and used with llama.cpp.

Once the model has been uploaded to HuggingFace it can be used like
this:
```console
./build/bin/llama-cli -hf ggml-org/embeddinggemma-300m-GGUF:Q8_0
```
This commit is contained in:
Daniel Bevenius
2025-09-04 18:10:29 +02:00
committed by GitHub
parent 856ed0947f
commit fb15d649ed
15 changed files with 328 additions and 47 deletions
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59
src/llama-graph.cpp
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@@ -258,6 +258,36 @@ void llm_graph_input_cross_embd::set_input(const llama_ubatch * ubatch) {
}
}
static void print_mask(float * data, int64_t n_tokens, int64_t n_kv, int64_t n_swa, llama_swa_type swa_type) {
LLAMA_LOG_DEBUG("%s: === Attention mask ===\n", __func__);
const char * swa_type_str = (swa_type == LLAMA_SWA_TYPE_NONE) ? "LLAMA_SWA_TYPE_NONE" :
(swa_type == LLAMA_SWA_TYPE_STANDARD) ? "LLAMA_SWA_TYPE_STANDARD" :
(swa_type == LLAMA_SWA_TYPE_CHUNKED) ? "LLAMA_SWA_TYPE_CHUNKED" :
(swa_type == LLAMA_SWA_TYPE_SYMMETRIC) ? "LLAMA_SWA_TYPE_SYMMETRIC" : "unknown";
LLAMA_LOG_DEBUG("%s: n_swa : %d, n_kv: %d, swq_type: %s\n", __func__, (int)n_swa, (int)n_kv, swa_type_str);
LLAMA_LOG_DEBUG("%s: '0' = can attend, '∞' = masked\n", __func__);
LLAMA_LOG_DEBUG("%s: Rows = query tokens, Columns = key/value tokens\n\n", __func__);
LLAMA_LOG_DEBUG(" ");
for (int j = 0; j < std::min((int64_t)20, n_kv); ++j) {
LLAMA_LOG_DEBUG("%2d", j);
}
LLAMA_LOG_DEBUG("\n");
for (int i = 0; i < std::min((int64_t)20, n_tokens); ++i) {
LLAMA_LOG_DEBUG(" %2d ", i);
for (int j = 0; j < std::min((int64_t)20, n_kv); ++j) {
float val = data[i * n_kv + j];
if (val == -INFINITY) {
LLAMA_LOG_DEBUG(" ∞");
} else {
LLAMA_LOG_DEBUG(" 0");
}
}
LLAMA_LOG_DEBUG("\n");
}
}
void llm_graph_input_attn_no_cache::set_input(const llama_ubatch * ubatch) {
const int64_t n_kv = ubatch->n_tokens;
const int64_t n_tokens = ubatch->n_tokens;
@@ -277,21 +307,32 @@ void llm_graph_input_attn_no_cache::set_input(const llama_ubatch * ubatch) {
for (int s = 0; s < ubatch->n_seq_id[i0]; ++s) {
const llama_seq_id s0 = ubatch->seq_id[i0][0];
// TODO: reimplement this like in llama_kv_cache
if (s0 == s1 && (!cparams.causal_attn || ubatch->pos[i0] <= ubatch->pos[i1])) {
if (hparams.use_alibi) {
f = -std::abs(ubatch->pos[i0] - ubatch->pos[i1]);
} else {
f = 0.0f;
}
break;
if (s0 != s1) {
continue; // skip different sequences
}
if (cparams.causal_attn && ubatch->pos[i0] > ubatch->pos[i1]) {
continue; // skip future tokens for causal attention
}
if (hparams.is_masked_swa(ubatch->pos[i0], ubatch->pos[i1])) {
continue; // skip masked tokens for SWA
}
// TODO: reimplement this like in llama_kv_cache_unified
if (hparams.use_alibi) {
f = -std::abs(ubatch->pos[i0] - ubatch->pos[i1]);
} else {
f = 0.0f;
}
}
data[h*(n_kv*n_tokens) + i1*n_kv + i0] = f;
}
}
}
if (debug) {
print_mask(data, n_tokens, n_kv, hparams.n_swa, hparams.swa_type);
}
}
void llm_graph_input_attn_kv::set_input(const llama_ubatch * ubatch) {