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llama : differentiate the KV dims in the attention (#4657)

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* Add n_key_dim and n_value_dim

Some models use values that are not derived from `n_embd`.
Also remove `n_embd_head` and `n_embd_gqa` because it is not clear
which "head" is referred to (key or value).

Fix issue #4648.

* Fix `llm_build_kqv` to use `n_value_gqa`

* Rebase

* Rename variables

* Fix llm_build_kqv to be more generic wrt n_embd_head_k

* Update default values for n_embd_head_k and n_embd_head_v

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>

* Fix llm_load_tensors: the asserts were not backcompat

---------

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
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postmasters 2024-01-02 03:51:28 -08:00 committed by GitHub
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3 changed files with 201 additions and 78 deletions
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2
gguf-py/gguf/constants.py
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@ -46,6 +46,8 @@ class Keys:
HEAD_COUNT_KV = "{arch}.attention.head_count_kv" HEAD_COUNT_KV = "{arch}.attention.head_count_kv"
MAX_ALIBI_BIAS = "{arch}.attention.max_alibi_bias" MAX_ALIBI_BIAS = "{arch}.attention.max_alibi_bias"
CLAMP_KQV = "{arch}.attention.clamp_kqv" CLAMP_KQV = "{arch}.attention.clamp_kqv"
KEY_LENGTH = "{arch}.attention.key_length"
VALUE_LENGTH = "{arch}.attention.value_length"
LAYERNORM_EPS = "{arch}.attention.layer_norm_epsilon" LAYERNORM_EPS = "{arch}.attention.layer_norm_epsilon"
LAYERNORM_RMS_EPS = "{arch}.attention.layer_norm_rms_epsilon" LAYERNORM_RMS_EPS = "{arch}.attention.layer_norm_rms_epsilon"

6
gguf-py/gguf/gguf_writer.py
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@ -333,6 +333,12 @@ class GGUFWriter:
def add_head_count_kv(self, count: int) -> None: def add_head_count_kv(self, count: int) -> None:
self.add_uint32(Keys.Attention.HEAD_COUNT_KV.format(arch=self.arch), count) self.add_uint32(Keys.Attention.HEAD_COUNT_KV.format(arch=self.arch), count)
def add_key_length(self, length: int) -> None:
self.add_uint32(Keys.Attention.KEY_LENGTH.format(arch=self.arch), length)
def add_value_length(self, length: int) -> None:
self.add_uint32(Keys.Attention.VALUE_LENGTH.format(arch=self.arch), length)
def add_max_alibi_bias(self, bias: float) -> None: def add_max_alibi_bias(self, bias: float) -> None:
self.add_float32(Keys.Attention.MAX_ALIBI_BIAS.format(arch=self.arch), bias) self.add_float32(Keys.Attention.MAX_ALIBI_BIAS.format(arch=self.arch), bias)

215
llama.cpp
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@ -245,6 +245,8 @@ enum llm_kv {
LLM_KV_ATTENTION_HEAD_COUNT_KV, LLM_KV_ATTENTION_HEAD_COUNT_KV,
LLM_KV_ATTENTION_MAX_ALIBI_BIAS, LLM_KV_ATTENTION_MAX_ALIBI_BIAS,
LLM_KV_ATTENTION_CLAMP_KQV, LLM_KV_ATTENTION_CLAMP_KQV,
LLM_KV_ATTENTION_KEY_LENGTH,
LLM_KV_ATTENTION_VALUE_LENGTH,
LLM_KV_ATTENTION_LAYERNORM_EPS, LLM_KV_ATTENTION_LAYERNORM_EPS,
LLM_KV_ATTENTION_LAYERNORM_RMS_EPS, LLM_KV_ATTENTION_LAYERNORM_RMS_EPS,
@ -297,6 +299,8 @@ static std::map<llm_kv, std::string> LLM_KV_NAMES = {
{ LLM_KV_ATTENTION_HEAD_COUNT_KV, "%s.attention.head_count_kv" }, { LLM_KV_ATTENTION_HEAD_COUNT_KV, "%s.attention.head_count_kv" },
{ LLM_KV_ATTENTION_MAX_ALIBI_BIAS, "%s.attention.max_alibi_bias" }, { LLM_KV_ATTENTION_MAX_ALIBI_BIAS, "%s.attention.max_alibi_bias" },
{ LLM_KV_ATTENTION_CLAMP_KQV, "%s.attention.clamp_kqv" }, { LLM_KV_ATTENTION_CLAMP_KQV, "%s.attention.clamp_kqv" },
{ LLM_KV_ATTENTION_KEY_LENGTH, "%s.attention.key_length" },
{ LLM_KV_ATTENTION_VALUE_LENGTH, "%s.attention.value_length" },
{ LLM_KV_ATTENTION_LAYERNORM_EPS, "%s.attention.layer_norm_epsilon" }, { LLM_KV_ATTENTION_LAYERNORM_EPS, "%s.attention.layer_norm_epsilon" },
{ LLM_KV_ATTENTION_LAYERNORM_RMS_EPS, "%s.attention.layer_norm_rms_epsilon" }, { LLM_KV_ATTENTION_LAYERNORM_RMS_EPS, "%s.attention.layer_norm_rms_epsilon" },
@ -1284,6 +1288,8 @@ struct llama_hparams {
uint32_t n_head_kv; uint32_t n_head_kv;
uint32_t n_layer; uint32_t n_layer;
uint32_t n_rot; uint32_t n_rot;
uint32_t n_embd_head_k; // dimension of keys (d_k). d_q is assumed to be the same, but there are n_head q heads, and only n_head_kv k-v heads
uint32_t n_embd_head_v; // dimension of values (d_v) aka n_embd_head
uint32_t n_ff; uint32_t n_ff;
uint32_t n_expert = 0; uint32_t n_expert = 0;
uint32_t n_expert_used = 0; uint32_t n_expert_used = 0;
@ -1310,6 +1316,8 @@ struct llama_hparams {
if (this->n_head_kv != other.n_head_kv) return true; if (this->n_head_kv != other.n_head_kv) return true;
if (this->n_layer != other.n_layer) return true; if (this->n_layer != other.n_layer) return true;
if (this->n_rot != other.n_rot) return true; if (this->n_rot != other.n_rot) return true;
if (this->n_embd_head_k != other.n_embd_head_k) return true;
if (this->n_embd_head_v != other.n_embd_head_v) return true;
if (this->n_ff != other.n_ff) return true; if (this->n_ff != other.n_ff) return true;
if (this->n_expert != other.n_expert) return true; if (this->n_expert != other.n_expert) return true;
if (this->n_expert_used != other.n_expert_used) return true; if (this->n_expert_used != other.n_expert_used) return true;
@ -1331,12 +1339,12 @@ struct llama_hparams {
return n_head/n_head_kv; return n_head/n_head_kv;
} }
uint32_t n_embd_head() const { uint32_t n_embd_k_gqa() const { // dimension of key embeddings across all k-v heads
return n_embd/n_head; return n_embd_head_k * n_head_kv;
} }
uint32_t n_embd_gqa() const { uint32_t n_embd_v_gqa() const { // dimension of value embeddings across all k-v heads
return n_embd/n_gqa(); return n_embd_head_v * n_head_kv;
} }
}; };
@ -1645,7 +1653,8 @@ static bool llama_kv_cache_init(
uint32_t n_ctx, uint32_t n_ctx,
int n_gpu_layers, int n_gpu_layers,
bool offload) { bool offload) {
const uint32_t n_embd = hparams.n_embd_gqa(); const uint32_t n_embd_k_gqa = hparams.n_embd_k_gqa();
const uint32_t n_embd_v_gqa = hparams.n_embd_v_gqa();
const uint32_t n_layer = hparams.n_layer; const uint32_t n_layer = hparams.n_layer;
cache.has_shift = false; cache.has_shift = false;
@ -1677,8 +1686,8 @@ static bool llama_kv_cache_init(
const int i_gpu_start = (int) n_layer - n_gpu_layers; const int i_gpu_start = (int) n_layer - n_gpu_layers;
for (int i = 0; i < (int) n_layer; i++) { for (int i = 0; i < (int) n_layer; i++) {
ggml_tensor * k = ggml_new_tensor_1d(cache.ctx, ktype, n_embd*n_ctx); ggml_tensor * k = ggml_new_tensor_1d(cache.ctx, ktype, n_embd_k_gqa*n_ctx);
ggml_tensor * v = ggml_new_tensor_1d(cache.ctx, vtype, n_embd*n_ctx); ggml_tensor * v = ggml_new_tensor_1d(cache.ctx, vtype, n_embd_v_gqa*n_ctx);
ggml_format_name(k, "cache_k_l%d", i); ggml_format_name(k, "cache_k_l%d", i);
ggml_format_name(v, "cache_v_l%d", i); ggml_format_name(v, "cache_v_l%d", i);
cache.k_l.push_back(k); cache.k_l.push_back(k);
@ -2672,6 +2681,12 @@ static void llm_load_hparams(
// gpt-j n_rot = rotary_dim // gpt-j n_rot = rotary_dim
} }
hparams.n_embd_head_k = hparams.n_embd / hparams.n_head;
ml.get_key(LLM_KV_ATTENTION_KEY_LENGTH, hparams.n_embd_head_k, false);
hparams.n_embd_head_v = hparams.n_embd / hparams.n_head;
ml.get_key(LLM_KV_ATTENTION_VALUE_LENGTH, hparams.n_embd_head_v, false);
// arch-specific KVs // arch-specific KVs
switch (model.arch) { switch (model.arch) {
case LLM_ARCH_LLAMA: case LLM_ARCH_LLAMA:
@ -3082,8 +3097,12 @@ static void llm_load_print_meta(llama_model_loader & ml, llama_model & model) {
LLAMA_LOG_INFO("%s: n_head = %u\n", __func__, hparams.n_head); LLAMA_LOG_INFO("%s: n_head = %u\n", __func__, hparams.n_head);
LLAMA_LOG_INFO("%s: n_head_kv = %u\n", __func__, hparams.n_head_kv); LLAMA_LOG_INFO("%s: n_head_kv = %u\n", __func__, hparams.n_head_kv);
LLAMA_LOG_INFO("%s: n_layer = %u\n", __func__, hparams.n_layer); LLAMA_LOG_INFO("%s: n_layer = %u\n", __func__, hparams.n_layer);
LLAMA_LOG_INFO("%s: n_rot = %u\n", __func__, hparams.n_rot); // a.k.a. n_embd_head, n_head_dim LLAMA_LOG_INFO("%s: n_rot = %u\n", __func__, hparams.n_rot);
LLAMA_LOG_INFO("%s: n_embd_head_k = %u\n", __func__, hparams.n_embd_head_k);
LLAMA_LOG_INFO("%s: n_embd_head_v = %u\n", __func__, hparams.n_embd_head_v);
LLAMA_LOG_INFO("%s: n_gqa = %u\n", __func__, hparams.n_gqa()); LLAMA_LOG_INFO("%s: n_gqa = %u\n", __func__, hparams.n_gqa());
LLAMA_LOG_INFO("%s: n_embd_k_gqa = %u\n", __func__, hparams.n_embd_k_gqa());
LLAMA_LOG_INFO("%s: n_embd_v_gqa = %u\n", __func__, hparams.n_embd_v_gqa());
LLAMA_LOG_INFO("%s: f_norm_eps = %.1e\n", __func__, hparams.f_norm_eps); LLAMA_LOG_INFO("%s: f_norm_eps = %.1e\n", __func__, hparams.f_norm_eps);
LLAMA_LOG_INFO("%s: f_norm_rms_eps = %.1e\n", __func__, hparams.f_norm_rms_eps); LLAMA_LOG_INFO("%s: f_norm_rms_eps = %.1e\n", __func__, hparams.f_norm_rms_eps);
LLAMA_LOG_INFO("%s: f_clamp_kqv = %.1e\n", __func__, hparams.f_clamp_kqv); LLAMA_LOG_INFO("%s: f_clamp_kqv = %.1e\n", __func__, hparams.f_clamp_kqv);
@ -3174,7 +3193,8 @@ static bool llm_load_tensors(
// create tensors for the weights // create tensors for the weights
{ {
const int64_t n_embd = hparams.n_embd; const int64_t n_embd = hparams.n_embd;
const int64_t n_embd_gqa = hparams.n_embd_gqa(); const int64_t n_embd_k_gqa = hparams.n_embd_k_gqa();
const int64_t n_embd_v_gqa = hparams.n_embd_v_gqa();
const int64_t n_layer = hparams.n_layer; const int64_t n_layer = hparams.n_layer;
const int64_t n_vocab = hparams.n_vocab; const int64_t n_vocab = hparams.n_vocab;
@ -3203,6 +3223,9 @@ static bool llm_load_tensors(
} }
const uint32_t n_ff = hparams.n_ff; const uint32_t n_ff = hparams.n_ff;
const int64_t n_embd_gqa = n_embd_v_gqa;
GGML_ASSERT(n_embd_gqa == n_embd / hparams.n_gqa());
GGML_ASSERT(n_embd_gqa == n_embd_k_gqa);
const int i_gpu_start = n_layer - n_gpu_layers; const int i_gpu_start = n_layer - n_gpu_layers;
@ -3271,6 +3294,9 @@ static bool llm_load_tensors(
} }
const uint32_t n_ff = hparams.n_ff; const uint32_t n_ff = hparams.n_ff;
const int64_t n_embd_gqa = n_embd_v_gqa;
GGML_ASSERT(n_embd_gqa == n_embd / hparams.n_gqa());
GGML_ASSERT(n_embd_gqa == n_embd_k_gqa);
const int i_gpu_start = n_layer - n_gpu_layers; const int i_gpu_start = n_layer - n_gpu_layers;
@ -3319,6 +3345,9 @@ static bool llm_load_tensors(
} }
const uint32_t n_ff = hparams.n_ff; const uint32_t n_ff = hparams.n_ff;
const int64_t n_embd_gqa = n_embd_v_gqa;
GGML_ASSERT(n_embd_gqa == n_embd / hparams.n_gqa());
GGML_ASSERT(n_embd_gqa == n_embd_k_gqa);
const int i_gpu_start = n_layer - n_gpu_layers; const int i_gpu_start = n_layer - n_gpu_layers;
@ -3369,6 +3398,9 @@ static bool llm_load_tensors(
} }
const uint32_t n_ff = hparams.n_ff; const uint32_t n_ff = hparams.n_ff;
const int64_t n_embd_gqa = n_embd_v_gqa;
GGML_ASSERT(n_embd_gqa == n_embd / hparams.n_gqa());
GGML_ASSERT(n_embd_gqa == n_embd_k_gqa);
const int i_gpu_start = n_layer - n_gpu_layers; const int i_gpu_start = n_layer - n_gpu_layers;
@ -3421,6 +3453,10 @@ static bool llm_load_tensors(
} }
const uint32_t n_ff = hparams.n_ff; const uint32_t n_ff = hparams.n_ff;
const int64_t n_embd_gqa = n_embd_v_gqa;
GGML_ASSERT(n_embd_gqa == n_embd / hparams.n_gqa());
GGML_ASSERT(n_embd_gqa == n_embd_k_gqa);
const int i_gpu_start = n_layer - n_gpu_layers; const int i_gpu_start = n_layer - n_gpu_layers;
model.layers.resize(n_layer); model.layers.resize(n_layer);
for (uint32_t i = 0; i < n_layer; ++i) { for (uint32_t i = 0; i < n_layer; ++i) {
@ -3470,6 +3506,9 @@ static bool llm_load_tensors(
} }
const uint32_t n_ff = hparams.n_ff; const uint32_t n_ff = hparams.n_ff;
const int64_t n_embd_gqa = n_embd_v_gqa;
GGML_ASSERT(n_embd_gqa == n_embd / hparams.n_gqa());
GGML_ASSERT(n_embd_gqa == n_embd_k_gqa);
const int i_gpu_start = n_layer - n_gpu_layers; const int i_gpu_start = n_layer - n_gpu_layers;
@ -3521,6 +3560,9 @@ static bool llm_load_tensors(
} }
const uint32_t n_ff = hparams.n_ff; const uint32_t n_ff = hparams.n_ff;
const int64_t n_embd_gqa = n_embd_v_gqa;
GGML_ASSERT(n_embd_gqa == n_embd / hparams.n_gqa());
GGML_ASSERT(n_embd_gqa == n_embd_k_gqa);
const int i_gpu_start = n_layer - n_gpu_layers; const int i_gpu_start = n_layer - n_gpu_layers;
@ -3568,6 +3610,9 @@ static bool llm_load_tensors(
} }
const uint32_t n_ff = hparams.n_ff; const uint32_t n_ff = hparams.n_ff;
const int64_t n_embd_gqa = n_embd_v_gqa;
GGML_ASSERT(n_embd_gqa == n_embd / hparams.n_gqa());
GGML_ASSERT(n_embd_gqa == n_embd_k_gqa);
const int i_gpu_start = n_layer - n_gpu_layers; const int i_gpu_start = n_layer - n_gpu_layers;
@ -3666,6 +3711,9 @@ static bool llm_load_tensors(
} }
const uint32_t n_ff = hparams.n_ff; const uint32_t n_ff = hparams.n_ff;
const int64_t n_embd_gqa = n_embd_v_gqa;
GGML_ASSERT(n_embd_gqa == n_embd / hparams.n_gqa());
GGML_ASSERT(n_embd_gqa == n_embd_k_gqa);
const int i_gpu_start = n_layer - n_gpu_layers; const int i_gpu_start = n_layer - n_gpu_layers;
@ -3715,6 +3763,9 @@ static bool llm_load_tensors(
} }
const uint32_t n_ff = hparams.n_ff; const uint32_t n_ff = hparams.n_ff;
const int64_t n_embd_gqa = n_embd_v_gqa;
GGML_ASSERT(n_embd_gqa == n_embd / hparams.n_gqa());
GGML_ASSERT(n_embd_gqa == n_embd_k_gqa);
const int i_gpu_start = n_layer - n_gpu_layers; const int i_gpu_start = n_layer - n_gpu_layers;
@ -3762,6 +3813,9 @@ static bool llm_load_tensors(
} }
const uint32_t n_ff = hparams.n_ff; const uint32_t n_ff = hparams.n_ff;
const int64_t n_embd_gqa = n_embd_v_gqa;
GGML_ASSERT(n_embd_gqa == n_embd / hparams.n_gqa());
GGML_ASSERT(n_embd_gqa == n_embd_k_gqa);
const int i_gpu_start = n_layer - n_gpu_layers; const int i_gpu_start = n_layer - n_gpu_layers;
@ -4000,8 +4054,8 @@ static struct ggml_tensor * llm_build_inp_embd(
return inpL; return inpL;
} }
// Persimmon: n_rot = n_embd_head/2 // Persimmon: n_rot = n_embd_head_k/2
// Other: n_rot = n_embd_head // Other: n_rot = n_embd_head_k
static void llm_build_k_shift( static void llm_build_k_shift(
struct ggml_context * ctx, struct ggml_context * ctx,
const llama_hparams & hparams, const llama_hparams & hparams,
@ -4016,15 +4070,15 @@ static void llm_build_k_shift(
const llm_build_cb & cb) { const llm_build_cb & cb) {
const int64_t n_layer = hparams.n_layer; const int64_t n_layer = hparams.n_layer;
const int64_t n_head_kv = hparams.n_head_kv; const int64_t n_head_kv = hparams.n_head_kv;
const int64_t n_embd_gqa = hparams.n_embd_gqa(); const int64_t n_embd_head_k = hparams.n_embd_head_k;
const int64_t n_embd_head = hparams.n_embd_head(); const int64_t n_embd_k_gqa = hparams.n_embd_k_gqa();
const int32_t n_orig_ctx = cparams.n_yarn_orig_ctx; const int32_t n_orig_ctx = cparams.n_yarn_orig_ctx;
const float ext_factor = cparams.yarn_ext_factor; const float ext_factor = cparams.yarn_ext_factor;
const float attn_factor = cparams.yarn_attn_factor; const float attn_factor = cparams.yarn_attn_factor;
const float beta_fast = cparams.yarn_beta_fast; const float beta_fast = cparams.yarn_beta_fast;
const float beta_slow = cparams.yarn_beta_slow; const float beta_slow = cparams.yarn_beta_slow;
GGML_ASSERT(n_embd_head % n_rot == 0); GGML_ASSERT(n_embd_head_k % n_rot == 0);
struct ggml_tensor * K_shift = ggml_new_tensor_1d(ctx, GGML_TYPE_I32, n_ctx); struct ggml_tensor * K_shift = ggml_new_tensor_1d(ctx, GGML_TYPE_I32, n_ctx);
cb(K_shift, "K_shift", -1); cb(K_shift, "K_shift", -1);
@ -4042,9 +4096,9 @@ static void llm_build_k_shift(
// we rotate only the first n_rot dimensions // we rotate only the first n_rot dimensions
ggml_rope_custom_inplace(ctx, ggml_rope_custom_inplace(ctx,
ggml_view_3d(ctx, kv.k_l[il], ggml_view_3d(ctx, kv.k_l[il],
n_embd_head, n_head_kv, n_ctx, n_embd_head_k, n_head_kv, n_ctx,
ggml_row_size(kv.k_l[il]->type, n_embd_head), ggml_row_size(kv.k_l[il]->type, n_embd_head_k),
ggml_row_size(kv.k_l[il]->type, n_embd_gqa), ggml_row_size(kv.k_l[il]->type, n_embd_k_gqa),
0), 0),
K_shift, n_rot, rope_type, 0, n_orig_ctx, freq_base, freq_scale, K_shift, n_rot, rope_type, 0, n_orig_ctx, freq_base, freq_scale,
ext_factor, attn_factor, beta_fast, beta_slow); ext_factor, attn_factor, beta_fast, beta_slow);
@ -4065,18 +4119,19 @@ static void llm_build_kv_store(
int32_t kv_head, int32_t kv_head,
const llm_build_cb & cb, const llm_build_cb & cb,
int64_t il) { int64_t il) {
const int64_t n_embd_gqa = hparams.n_embd_gqa(); const int64_t n_embd_k_gqa = hparams.n_embd_k_gqa();
const int64_t n_embd_v_gqa = hparams.n_embd_v_gqa();
// compute the transposed [n_tokens, n_embd] V matrix // compute the transposed [n_tokens, n_embd] V matrix
struct ggml_tensor * v_cur_t = ggml_transpose(ctx, ggml_reshape_2d(ctx, v_cur, n_embd_gqa, n_tokens)); struct ggml_tensor * v_cur_t = ggml_transpose(ctx, ggml_reshape_2d(ctx, v_cur, n_embd_v_gqa, n_tokens));
//struct ggml_tensor * v_cur_t = ggml_transpose(ctx, v_cur); // TODO: reshape above is likely not needed //struct ggml_tensor * v_cur_t = ggml_transpose(ctx, v_cur); // TODO: reshape above is likely not needed
cb(v_cur_t, "v_cur_t", il); cb(v_cur_t, "v_cur_t", il);
struct ggml_tensor * k_cache_view = ggml_view_1d(ctx, kv.k_l[il], n_tokens*n_embd_gqa, struct ggml_tensor * k_cache_view = ggml_view_1d(ctx, kv.k_l[il], n_tokens*n_embd_k_gqa,
(ggml_row_size(kv.k_l[il]->type, n_embd_gqa))*kv_head); (ggml_row_size(kv.k_l[il]->type, n_embd_k_gqa))*kv_head);
cb(k_cache_view, "k_cache_view", il); cb(k_cache_view, "k_cache_view", il);
struct ggml_tensor * v_cache_view = ggml_view_2d(ctx, kv.v_l[il], n_tokens, n_embd_gqa, struct ggml_tensor * v_cache_view = ggml_view_2d(ctx, kv.v_l[il], n_tokens, n_embd_v_gqa,
( n_ctx)*ggml_element_size(kv.v_l[il]), ( n_ctx)*ggml_element_size(kv.v_l[il]),
(kv_head)*ggml_element_size(kv.v_l[il])); (kv_head)*ggml_element_size(kv.v_l[il]));
cb(v_cache_view, "v_cache_view", il); cb(v_cache_view, "v_cache_view", il);
@ -4226,20 +4281,20 @@ static struct ggml_tensor * llm_build_kqv(
float kq_scale, float kq_scale,
const llm_build_cb & cb, const llm_build_cb & cb,
int il) { int il) {
const int64_t n_embd = hparams.n_embd;
const int64_t n_head = hparams.n_head; const int64_t n_head = hparams.n_head;
const int64_t n_head_kv = hparams.n_head_kv; const int64_t n_head_kv = hparams.n_head_kv;
const int64_t n_embd_head = hparams.n_embd_head(); const int64_t n_embd_head_k = hparams.n_embd_head_k;
const int64_t n_embd_gqa = hparams.n_embd_gqa(); const int64_t n_embd_k_gqa = hparams.n_embd_k_gqa();
const int64_t n_embd_head_v = hparams.n_embd_head_v;
struct ggml_tensor * q = ggml_permute(ctx, q_cur, 0, 2, 1, 3); struct ggml_tensor * q = ggml_permute(ctx, q_cur, 0, 2, 1, 3);
cb(q, "q", il); cb(q, "q", il);
struct ggml_tensor * k = struct ggml_tensor * k =
ggml_view_3d(ctx, kv.k_l[il], ggml_view_3d(ctx, kv.k_l[il],
n_embd_head, n_kv, n_head_kv, n_embd_head_k, n_kv, n_head_kv,
ggml_row_size(kv.k_l[il]->type, n_embd_gqa), ggml_row_size(kv.k_l[il]->type, n_embd_k_gqa),
ggml_row_size(kv.k_l[il]->type, n_embd_head), ggml_row_size(kv.k_l[il]->type, n_embd_head_k),
0); 0);
cb(k, "k", il); cb(k, "k", il);
@ -4278,9 +4333,9 @@ static struct ggml_tensor * llm_build_kqv(
// split cached v into n_head heads // split cached v into n_head heads
struct ggml_tensor * v = struct ggml_tensor * v =
ggml_view_3d(ctx, kv.v_l[il], ggml_view_3d(ctx, kv.v_l[il],
n_kv, n_embd_head, n_head_kv, n_kv, n_embd_head_v, n_head_kv,
ggml_element_size(kv.v_l[il])*n_ctx, ggml_element_size(kv.v_l[il])*n_ctx,
ggml_element_size(kv.v_l[il])*n_ctx*n_embd_head, ggml_element_size(kv.v_l[il])*n_ctx*n_embd_head_v,
0); 0);
cb(v, "v", il); cb(v, "v", il);
@ -4290,7 +4345,7 @@ static struct ggml_tensor * llm_build_kqv(
struct ggml_tensor * kqv_merged = ggml_permute(ctx, kqv, 0, 2, 1, 3); struct ggml_tensor * kqv_merged = ggml_permute(ctx, kqv, 0, 2, 1, 3);
cb(kqv_merged, "kqv_merged", il); cb(kqv_merged, "kqv_merged", il);
struct ggml_tensor * cur = ggml_cont_2d(ctx, kqv_merged, n_embd, n_tokens); struct ggml_tensor * cur = ggml_cont_2d(ctx, kqv_merged, n_embd_head_k*n_head, n_tokens);
cb(cur, "kqv_merged_cont", il); cb(cur, "kqv_merged_cont", il);
cur = ggml_mul_mat(ctx, wo, cur); cur = ggml_mul_mat(ctx, wo, cur);
@ -4317,8 +4372,10 @@ struct llm_build_context {
const int64_t n_ctx; // user-specified context size (can be different from n_ctx_train) const int64_t n_ctx; // user-specified context size (can be different from n_ctx_train)
const int64_t n_head; const int64_t n_head;
const int64_t n_head_kv; const int64_t n_head_kv;
const int64_t n_embd_head; const int64_t n_embd_head_k;
const int64_t n_embd_gqa; const int64_t n_embd_k_gqa;
const int64_t n_embd_head_v;
const int64_t n_embd_v_gqa;
const int64_t n_expert; const int64_t n_expert;
const int64_t n_expert_used; const int64_t n_expert_used;
@ -4360,8 +4417,10 @@ struct llm_build_context {
n_ctx (cparams.n_ctx), n_ctx (cparams.n_ctx),
n_head (hparams.n_head), n_head (hparams.n_head),
n_head_kv (hparams.n_head_kv), n_head_kv (hparams.n_head_kv),
n_embd_head (hparams.n_embd_head()), n_embd_head_k (hparams.n_embd_head_k),
n_embd_gqa (hparams.n_embd_gqa()), n_embd_k_gqa (hparams.n_embd_k_gqa()),
n_embd_head_v (hparams.n_embd_head_v),
n_embd_v_gqa (hparams.n_embd_v_gqa()),
n_expert (hparams.n_expert), n_expert (hparams.n_expert),
n_expert_used (hparams.n_expert_used), n_expert_used (hparams.n_expert_used),
freq_base (cparams.rope_freq_base), freq_base (cparams.rope_freq_base),
@ -4404,6 +4463,8 @@ struct llm_build_context {
struct ggml_cgraph * build_llama() { struct ggml_cgraph * build_llama() {
struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false); struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false);
const int64_t n_embd_head = hparams.n_embd_head_v;
GGML_ASSERT(n_embd_head == hparams.n_embd_head_k);
GGML_ASSERT(n_embd_head == hparams.n_rot); GGML_ASSERT(n_embd_head == hparams.n_rot);
struct ggml_tensor * cur; struct ggml_tensor * cur;
@ -4588,6 +4649,9 @@ struct llm_build_context {
struct ggml_cgraph * build_baichuan() { struct ggml_cgraph * build_baichuan() {
struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false); struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false);
const int64_t n_embd_head = hparams.n_embd_head_v;
GGML_ASSERT(n_embd_head == hparams.n_embd_head_k);
struct ggml_tensor * cur; struct ggml_tensor * cur;
struct ggml_tensor * inpL; struct ggml_tensor * inpL;
@ -4705,6 +4769,11 @@ struct llm_build_context {
struct ggml_cgraph * build_falcon() { struct ggml_cgraph * build_falcon() {
struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false); struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false);
const int64_t n_embd_head = hparams.n_embd_head_v;
const int64_t n_embd_gqa = hparams.n_embd_v_gqa();
GGML_ASSERT(n_embd_head == hparams.n_embd_head_k);
GGML_ASSERT(n_embd_gqa == n_embd);
struct ggml_tensor * cur; struct ggml_tensor * cur;
struct ggml_tensor * inpL; struct ggml_tensor * inpL;
@ -4824,6 +4893,11 @@ struct llm_build_context {
struct ggml_cgraph * build_starcoder() { struct ggml_cgraph * build_starcoder() {
struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false); struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false);
const int64_t n_embd_head = hparams.n_embd_head_v;
const int64_t n_embd_gqa = hparams.n_embd_v_gqa();
GGML_ASSERT(n_embd_head == hparams.n_embd_head_k);
GGML_ASSERT(n_embd_gqa == n_embd);
struct ggml_tensor * cur; struct ggml_tensor * cur;
struct ggml_tensor * pos; struct ggml_tensor * pos;
struct ggml_tensor * inpL; struct ggml_tensor * inpL;
@ -4920,7 +4994,12 @@ struct llm_build_context {
struct ggml_cgraph * build_persimmon() { struct ggml_cgraph * build_persimmon() {
struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false); struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false);
const int64_t n_rot = n_embd_head / 2; const int64_t n_embd_head = hparams.n_embd_head_v;
const int64_t n_embd_gqa = hparams.n_embd_v_gqa();
GGML_ASSERT(n_embd_head == hparams.n_embd_head_k);
GGML_ASSERT(n_embd_gqa == n_embd);
const int64_t n_rot = n_embd_head_k / 2;
struct ggml_tensor * cur; struct ggml_tensor * cur;
struct ggml_tensor * inpL; struct ggml_tensor * inpL;
@ -5129,6 +5208,11 @@ struct llm_build_context {
struct ggml_cgraph * build_refact() { struct ggml_cgraph * build_refact() {
struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false); struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false);
const int64_t n_embd_head = hparams.n_embd_head_v;
const int64_t n_embd_gqa = hparams.n_embd_v_gqa();
GGML_ASSERT(n_embd_head == hparams.n_embd_head_k);
GGML_ASSERT(n_embd_gqa == n_embd);
struct ggml_tensor * cur; struct ggml_tensor * cur;
struct ggml_tensor * inpL; struct ggml_tensor * inpL;
@ -5217,6 +5301,11 @@ struct llm_build_context {
struct ggml_cgraph * build_bloom() { struct ggml_cgraph * build_bloom() {
struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false); struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false);
const int64_t n_embd_head = hparams.n_embd_head_v;
const int64_t n_embd_gqa = hparams.n_embd_v_gqa();
GGML_ASSERT(n_embd_head == hparams.n_embd_head_k);
GGML_ASSERT(n_embd_gqa == n_embd);
struct ggml_tensor * cur; struct ggml_tensor * cur;
struct ggml_tensor * inpL; struct ggml_tensor * inpL;
@ -5308,6 +5397,11 @@ struct llm_build_context {
struct ggml_cgraph * build_mpt() { struct ggml_cgraph * build_mpt() {
struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false); struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false);
const int64_t n_embd_head = hparams.n_embd_head_v;
const int64_t n_embd_gqa = hparams.n_embd_v_gqa();
GGML_ASSERT(n_embd_head == hparams.n_embd_head_k);
GGML_ASSERT(n_embd_gqa == n_embd);
struct ggml_tensor * cur; struct ggml_tensor * cur;
struct ggml_tensor * inpL; struct ggml_tensor * inpL;
@ -5403,6 +5497,9 @@ struct llm_build_context {
struct ggml_cgraph * build_stablelm() { struct ggml_cgraph * build_stablelm() {
struct ggml_cgraph * gf = ggml_new_graph(ctx0); struct ggml_cgraph * gf = ggml_new_graph(ctx0);
const int64_t n_embd_head = hparams.n_embd_head_v;
GGML_ASSERT(n_embd_head == hparams.n_embd_head_k);
struct ggml_tensor * cur; struct ggml_tensor * cur;
struct ggml_tensor * inpL; struct ggml_tensor * inpL;
@ -5513,6 +5610,9 @@ struct llm_build_context {
struct ggml_cgraph * build_qwen() { struct ggml_cgraph * build_qwen() {
struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false); struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false);
const int64_t n_embd_head = hparams.n_embd_head_v;
GGML_ASSERT(n_embd_head == hparams.n_embd_head_k);
struct ggml_tensor * cur; struct ggml_tensor * cur;
struct ggml_tensor * inpL; struct ggml_tensor * inpL;
@ -5624,6 +5724,11 @@ struct llm_build_context {
struct ggml_cgraph * build_phi2() { struct ggml_cgraph * build_phi2() {
struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false); struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false);
const int64_t n_embd_head = hparams.n_embd_head_v;
const int64_t n_embd_gqa = hparams.n_embd_v_gqa();
GGML_ASSERT(n_embd_head == hparams.n_embd_head_k);
GGML_ASSERT(n_embd_gqa == n_embd);
struct ggml_tensor * cur; struct ggml_tensor * cur;
struct ggml_tensor * attn_norm_output; struct ggml_tensor * attn_norm_output;
struct ggml_tensor * ffn_output; struct ggml_tensor * ffn_output;
@ -5736,6 +5841,9 @@ struct llm_build_context {
struct ggml_cgraph * build_plamo() { struct ggml_cgraph * build_plamo() {
struct ggml_cgraph * gf = ggml_new_graph(ctx0); struct ggml_cgraph * gf = ggml_new_graph(ctx0);
const int64_t n_embd_head = hparams.n_embd_head_v;
GGML_ASSERT(n_embd_head == hparams.n_embd_head_k);
struct ggml_tensor * cur; struct ggml_tensor * cur;
struct ggml_tensor * inpL; struct ggml_tensor * inpL;
@ -5840,6 +5948,11 @@ struct llm_build_context {
struct ggml_cgraph * build_gpt2() { struct ggml_cgraph * build_gpt2() {
struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false); struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, LLAMA_MAX_NODES, false);
const int64_t n_embd_head = hparams.n_embd_head_v;
const int64_t n_embd_gqa = hparams.n_embd_v_gqa();
GGML_ASSERT(n_embd_head == hparams.n_embd_head_k);
GGML_ASSERT(n_embd_gqa == n_embd);
struct ggml_tensor * cur; struct ggml_tensor * cur;
struct ggml_tensor * pos; struct ggml_tensor * pos;
struct ggml_tensor * inpL; struct ggml_tensor * inpL;
@ -9627,8 +9740,8 @@ struct llama_context * llama_new_context_with_model(
const ggml_type type_k = params.type_k; const ggml_type type_k = params.type_k;
const ggml_type type_v = params.type_v; const ggml_type type_v = params.type_v;
GGML_ASSERT(hparams.n_embd_head() % ggml_blck_size(type_k) == 0); GGML_ASSERT(hparams.n_embd_head_k % ggml_blck_size(type_k) == 0);
GGML_ASSERT(hparams.n_embd_head() % ggml_blck_size(type_v) == 0); GGML_ASSERT(hparams.n_embd_head_v % ggml_blck_size(type_v) == 0);
// reserve memory for context buffers // reserve memory for context buffers
if (!hparams.vocab_only) { if (!hparams.vocab_only) {
@ -10173,7 +10286,8 @@ static void llama_copy_state_data_internal(struct llama_context * ctx, llama_dat
const auto & cparams = ctx->cparams; const auto & cparams = ctx->cparams;
const auto n_layer = hparams.n_layer; const auto n_layer = hparams.n_layer;
const auto n_embd = hparams.n_embd_gqa(); const auto n_embd_k_gqa = hparams.n_embd_k_gqa();
const auto n_embd_v_gqa = hparams.n_embd_v_gqa();
const auto n_ctx = cparams.n_ctx; const auto n_ctx = cparams.n_ctx;
const size_t kv_buf_size = ggml_backend_buffer_get_size(kv_self.buf); const size_t kv_buf_size = ggml_backend_buffer_get_size(kv_self.buf);
@ -10196,15 +10310,15 @@ static void llama_copy_state_data_internal(struct llama_context * ctx, llama_dat
std::vector<struct ggml_tensor *> vout2d(n_layer); std::vector<struct ggml_tensor *> vout2d(n_layer);
for (int il = 0; il < (int) n_layer; ++il) { for (int il = 0; il < (int) n_layer; ++il) {
kout2d[il] = ggml_new_tensor_2d(cpy_ctx, kv_self.k_l[il]->type, n_embd, kv_head); kout2d[il] = ggml_new_tensor_2d(cpy_ctx, kv_self.k_l[il]->type, n_embd_k_gqa, kv_head);
vout2d[il] = ggml_new_tensor_2d(cpy_ctx, kv_self.v_l[il]->type, kv_head, n_embd); vout2d[il] = ggml_new_tensor_2d(cpy_ctx, kv_self.v_l[il]->type, kv_head, n_embd_v_gqa);
ggml_tensor * k2d = ggml_view_2d(cpy_ctx, kv_self.k_l[il], ggml_tensor * k2d = ggml_view_2d(cpy_ctx, kv_self.k_l[il],
n_embd, kv_head, n_embd_k_gqa, kv_head,
elt_size*n_embd, 0); elt_size*n_embd_k_gqa, 0);
ggml_tensor * v2d = ggml_view_2d(cpy_ctx, kv_self.v_l[il], ggml_tensor * v2d = ggml_view_2d(cpy_ctx, kv_self.v_l[il],
kv_head, n_embd, kv_head, n_embd_v_gqa,
elt_size*n_ctx, 0); elt_size*n_ctx, 0);
ggml_build_forward_expand(gf, ggml_cpy(cpy_ctx, k2d, kout2d[il])); ggml_build_forward_expand(gf, ggml_cpy(cpy_ctx, k2d, kout2d[il]));
@ -10312,7 +10426,8 @@ size_t llama_set_state_data(struct llama_context * ctx, uint8_t * src) {
const auto & cparams = ctx->cparams; const auto & cparams = ctx->cparams;
const int n_layer = hparams.n_layer; const int n_layer = hparams.n_layer;
const int n_embd = hparams.n_embd_gqa(); const int n_embd_k_gqa = hparams.n_embd_k_gqa();
const int n_embd_v_gqa = hparams.n_embd_v_gqa();
const int n_ctx = cparams.n_ctx; const int n_ctx = cparams.n_ctx;
size_t kv_buf_size; size_t kv_buf_size;
@ -10337,15 +10452,15 @@ size_t llama_set_state_data(struct llama_context * ctx, uint8_t * src) {
std::vector<struct ggml_tensor *> vin2d(n_layer); std::vector<struct ggml_tensor *> vin2d(n_layer);
for (int il = 0; il < n_layer; ++il) { for (int il = 0; il < n_layer; ++il) {
kin2d[il] = ggml_new_tensor_2d(cpy_ctx, kv_self.k_l[il]->type, n_embd, kv_head); kin2d[il] = ggml_new_tensor_2d(cpy_ctx, kv_self.k_l[il]->type, n_embd_k_gqa, kv_head);
vin2d[il] = ggml_new_tensor_2d(cpy_ctx, kv_self.v_l[il]->type, kv_head, n_embd); vin2d[il] = ggml_new_tensor_2d(cpy_ctx, kv_self.v_l[il]->type, kv_head, n_embd_v_gqa);
ggml_tensor * k2d = ggml_view_2d(cpy_ctx, kv_self.k_l[il], ggml_tensor * k2d = ggml_view_2d(cpy_ctx, kv_self.k_l[il],
n_embd, kv_head, n_embd_k_gqa, kv_head,
elt_size*n_embd, 0); elt_size*n_embd_k_gqa, 0);
ggml_tensor * v2d = ggml_view_2d(cpy_ctx, kv_self.v_l[il], ggml_tensor * v2d = ggml_view_2d(cpy_ctx, kv_self.v_l[il],
kv_head, n_embd, kv_head, n_embd_v_gqa,
elt_size*n_ctx, 0); elt_size*n_ctx, 0);
ggml_build_forward_expand(gf, ggml_cpy(cpy_ctx, kin2d[il], k2d)); ggml_build_forward_expand(gf, ggml_cpy(cpy_ctx, kin2d[il], k2d));