vbatts/llama.cpp
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feat(bamba): hparam parsing in llama.cpp

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Branch: BambaArchitecture

Signed-off-by: Gabe Goodhart <ghart@us.ibm.com>
This commit is contained in:
Gabe Goodhart 2024-12-03 16:29:32 -07:00
parent 1c1e0080ed
commit e0af809b05
1 changed files with 74 additions and 6 deletions
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68
src/llama.cpp
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@ -310,6 +310,8 @@ enum llm_kv {
LLM_KV_ATTENTION_RELATIVE_BUCKETS_COUNT,
LLM_KV_ATTENTION_SLIDING_WINDOW,
LLM_KV_ATTENTION_SCALE,
LLM_KV_ATTENTION_LAYER_COUNT,
LLM_KV_ATTENTION_LAYER_INDICES,
LLM_KV_ROPE_DIMENSION_COUNT,
LLM_KV_ROPE_FREQ_BASE,
@ -331,6 +333,11 @@ enum llm_kv {
LLM_KV_SSM_TIME_STEP_RANK,
LLM_KV_SSM_GROUP_COUNT,
LLM_KV_SSM_DT_B_C_RMS,
LLM_KV_SSM_HEAD_COUNT,
LLM_KV_SSM_HEAD_DIM,
LLM_KV_SSM_CHUNK_SIZE,
LLM_KV_SSM_CONV_BIAS,
LLM_KV_SSM_PROJ_BIAS,
LLM_KV_WKV_HEAD_SIZE,
@ -427,6 +434,7 @@ static const std::map<llm_kv, const char *> LLM_KV_NAMES = {
{ LLM_KV_ATTENTION_RELATIVE_BUCKETS_COUNT, "%s.attention.relative_buckets_count" },
{ LLM_KV_ATTENTION_SLIDING_WINDOW, "%s.attention.sliding_window" },
{ LLM_KV_ATTENTION_SCALE, "%s.attention.scale" },
{ LLM_KV_ATTENTION_LAYER_INDICES, "%s.attention.layer_indices" },
{ LLM_KV_ROPE_DIMENSION_COUNT, "%s.rope.dimension_count" },
{ LLM_KV_ROPE_FREQ_BASE, "%s.rope.freq_base" },
@ -448,6 +456,11 @@ static const std::map<llm_kv, const char *> LLM_KV_NAMES = {
{ LLM_KV_SSM_TIME_STEP_RANK, "%s.ssm.time_step_rank" },
{ LLM_KV_SSM_GROUP_COUNT, "%s.ssm.group_count" },
{ LLM_KV_SSM_DT_B_C_RMS, "%s.ssm.dt_b_c_rms" },
{ LLM_KV_SSM_HEAD_COUNT, "%s.ssm.head_count" },
{ LLM_KV_SSM_HEAD_DIM, "%s.ssm.head_dim" },
{ LLM_KV_SSM_CHUNK_SIZE, "%s.ssm.chunk_size" },
{ LLM_KV_SSM_CONV_BIAS, "%s.ssm.conv_bias" },
{ LLM_KV_SSM_PROJ_BIAS, "%s.ssm.proj_bias" },
{ LLM_KV_WKV_HEAD_SIZE, "%s.wkv.head_size" },
@ -2477,6 +2490,14 @@ struct llama_hparams {
uint32_t ssm_dt_rank = 0;
uint32_t ssm_n_group = 0;
bool ssm_dt_b_c_rms = false;
uint32_t ssm_head_count = 0;
uint32_t ssm_head_dim = 0;
uint32_t ssm_chunk_size = 0;
bool ssm_conv_bias = false;
bool ssm_proj_bias = false;
// for hybrid state space models
std::array<bool, LLAMA_MAX_LAYERS> ssm_layer_arr;
float f_clamp_kqv = 0.0f;
float f_max_alibi_bias = 0.0f;
@ -2533,6 +2554,13 @@ struct llama_hparams {
if (this->ssm_dt_rank != other.ssm_dt_rank) return true;
if (this->ssm_n_group != other.ssm_n_group) return true;
if (this->ssm_dt_b_c_rms != other.ssm_dt_b_c_rms) return true;
if (this->ssm_head_count != other.ssm_head_count) return true;
if (this->ssm_head_dim != other.ssm_head_dim) return true;
if (this->ssm_chunk_size != other.ssm_chunk_size) return true;
if (this->ssm_conv_bias != other.ssm_conv_bias) return true;
if (this->ssm_proj_bias != other.ssm_proj_bias) return true;
if (this->ssm_layer_arr != other.ssm_layer_arr) return true;
if (this->rescale_every_n_layers != other.rescale_every_n_layers) return true;
if (this->time_mix_extra_dim != other.time_mix_extra_dim) return true;
@ -2625,6 +2653,10 @@ struct llama_hparams {
return ssm_d_state * ssm_d_inner;
}
}
bool ssm_layer(uint32_t il) const {
return ssm_layer_arr[il];
}
};
static_assert(std::is_trivially_copyable<llama_hparams>::value, "llama_hparams must be trivially copyable");
@ -5492,6 +5524,7 @@ static void llm_load_hparams(
std::fill(hparams.n_head_arr.begin(), hparams.n_head_arr.end(), 0);
std::fill(hparams.n_head_kv_arr.begin(), hparams.n_head_kv_arr.end(), 0);
std::fill(hparams.n_ff_arr.begin(), hparams.n_ff_arr.end(), 0);
std::fill(hparams.ssm_layer_arr.begin(), hparams.ssm_layer_arr.end(), false);
ml.get_key_or_arr(LLM_KV_FEED_FORWARD_LENGTH, hparams.n_ff_arr, hparams.n_layer);
ml.get_key_or_arr(LLM_KV_ATTENTION_HEAD_COUNT, hparams.n_head_arr, hparams.n_layer);
@ -5960,6 +5993,32 @@ static void llm_load_hparams(
default: model.type = e_model::MODEL_UNKNOWN;
}
} break;
case LLM_ARCH_BAMBA:
{
// Mamba2 parameters
ml.get_key(LLM_KV_SSM_CONV_KERNEL, hparams.ssm_d_conv);
ml.get_key(LLM_KV_SSM_INNER_SIZE, hparams.ssm_d_inner);
ml.get_key(LLM_KV_SSM_STATE_SIZE, hparams.ssm_d_state);
ml.get_key(LLM_KV_SSM_TIME_STEP_RANK, hparams.ssm_dt_rank);
ml.get_key(LLM_KV_SSM_GROUP_COUNT, hparams.ssm_n_group);
ml.get_key(LLM_KV_SSM_HEAD_COUNT, hparams.ssm_head_count);
ml.get_key(LLM_KV_SSM_HEAD_DIM, hparams.ssm_head_dim);
ml.get_key(LLM_KV_SSM_CHUNK_SIZE, hparams.ssm_chunk_size);
ml.get_key(LLM_KV_SSM_CONV_BIAS, hparams.ssm_conv_bias);
ml.get_key(LLM_KV_SSM_PROJ_BIAS, hparams.ssm_proj_bias);
// Attention params
std::fill(hparams.ssm_layer_arr.begin(), hparams.ssm_layer_arr.end(), true);
std::vector<uint32_t> attn_layer_indices;
ml.get_arr(LLM_KV_ATTENTION_LAYER_INDICES, attn_layer_indices);
for (const auto attn_idx : attn_layer_indices) {
GGML_ASSERT(attn_idx < hparams.n_layer);
hparams.ssm_layer_arr[attn_idx] = false;
}
// Feed forward params
ml.get_key(LLM_KV_ATTENTION_LAYERNORM_RMS_EPS, hparams.f_norm_rms_eps);
} break;
case LLM_ARCH_XVERSE:
{
ml.get_key(LLM_KV_ATTENTION_LAYERNORM_RMS_EPS, hparams.f_norm_rms_eps);
@ -7038,6 +7097,11 @@ static void llm_load_print_meta(llama_model_loader & ml, llama_model & model) {
LLAMA_LOG_INFO("%s: ssm_dt_rank = %u\n", __func__, hparams.ssm_dt_rank);
LLAMA_LOG_INFO("%s: ssm_n_group = %u\n", __func__, hparams.ssm_n_group);
LLAMA_LOG_INFO("%s: ssm_dt_b_c_rms = %d\n", __func__, hparams.ssm_dt_b_c_rms);
LLAMA_LOG_INFO("%s: ssm_head_count = %d\n", __func__, hparams.ssm_head_count);
LLAMA_LOG_INFO("%s: ssm_head_dim = %d\n", __func__, hparams.ssm_head_dim);
LLAMA_LOG_INFO("%s: ssm_chunk_size = %d\n", __func__, hparams.ssm_chunk_size);
LLAMA_LOG_INFO("%s: ssm_conv_bias = %d\n", __func__, hparams.ssm_conv_bias);
LLAMA_LOG_INFO("%s: ssm_proj_bias = %d\n", __func__, hparams.ssm_proj_bias);
}
LLAMA_LOG_INFO("%s: model type = %s\n", __func__, llama_model_type_name(model.type));
@ -7106,6 +7170,10 @@ static void llm_load_print_meta(llama_model_loader & ml, llama_model & model) {
LLAMA_LOG_INFO("%s: f_residual_scale = %f\n", __func__, hparams.f_residual_scale);
LLAMA_LOG_INFO("%s: f_attention_scale = %f\n", __func__, hparams.f_attention_scale);
}
if (model.arch == LLM_ARCH_BAMBA) {
LLAMA_LOG_INFO("%s: ssm_layer_arr = %s\n", __func__, print_f([&](uint32_t il) { return uint32_t(hparams.ssm_layer(il)); }, hparams.n_layer).c_str());
}
}
enum llm_tensor_layer {