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131 changes: 130 additions & 1 deletion convert_hf_to_gguf.py
Original file line number Diff line number Diff line change
Expand Up @@ -920,7 +920,7 @@ def set_gguf_parameters(self):
self.gguf_writer.add_expert_group_used_count(n_group_used)
logger.info(f"gguf: expert groups used count = {n_group_used}")

if (score_func := self.find_hparam(["score_function", "scoring_func", "score_func", "moe_router_activation_func"], optional=True)) is not None:
if (score_func := self.find_hparam(["score_function", "scoring_func", "score_func", "moe_router_activation", "moe_router_activation_func"], optional=True)) is not None:
if score_func == "sigmoid":
self.gguf_writer.add_expert_gating_func(gguf.ExpertGatingFuncType.SIGMOID)
elif score_func == "softmax":
Expand Down Expand Up @@ -7912,6 +7912,135 @@ def prepare_tensors(self):
raise ValueError(f"Unprocessed experts: {experts}")


@ModelBase.register("Step3p5ForCausalLM")
class Step35Model(TextModel):
model_arch = gguf.MODEL_ARCH.STEP35

def set_gguf_parameters(self):
rope_theta = self.hparams.get("rope_theta")
if isinstance(rope_theta, list):
self.hparams["rope_theta"] = float(rope_theta[0])
self.hparams["local_rope_theta"] = float(rope_theta[1])
self.rope_parameters["rope_theta"] = self.hparams["rope_theta"]
self.rope_parameters["sliding_attention"] = {"rope_theta": self.hparams["local_rope_theta"]}

super().set_gguf_parameters()

layer_types = self.hparams.get("layer_types") or []
partial_rotary_factors = self.hparams.get("partial_rotary_factors") or []
attn_other = self.hparams.get("attention_other_setting") or {}

n_head_base = self.hparams["num_attention_heads"]
n_kv_base = self.hparams["num_attention_groups"]

n_head_swa = attn_other.get("num_attention_heads", n_head_base)
n_kv_swa = attn_other.get("num_attention_groups", n_kv_base)

layer_types = layer_types[: self.block_count]
partial_rotary_factors = partial_rotary_factors[: self.block_count]
assert [1.0 if lt == "sliding_attention" else 0.5 for lt in layer_types] == partial_rotary_factors
head_arr = [n_head_swa if lt == "sliding_attention" else n_head_base for lt in layer_types]
kv_arr = [n_kv_swa if lt == "sliding_attention" else n_kv_base for lt in layer_types]
swa_pat = [lt == "sliding_attention" for lt in layer_types]

self.gguf_writer.add_head_count(head_arr)
self.gguf_writer.add_head_count_kv(kv_arr)

self.gguf_writer.add_sliding_window(self.hparams["sliding_window"])
self.gguf_writer.add_sliding_window_pattern(swa_pat)

self.gguf_writer.add_value_length(self.hparams["head_dim"])

# MoE params
self.gguf_writer.add_expert_count(self.hparams["moe_num_experts"])
self.gguf_writer.add_expert_used_count(self.hparams["moe_top_k"])
self.gguf_writer.add_expert_feed_forward_length(self.hparams["moe_intermediate_size"])
self.gguf_writer.add_expert_shared_feed_forward_length(self.hparams["share_expert_dim"])

if (moe_router_scaling_factor := self.hparams.get("moe_router_scaling_factor")) is not None:
self.gguf_writer.add_expert_weights_scale(moe_router_scaling_factor)
if (norm_expert_weight := self.hparams.get("norm_expert_weight")) is not None:
self.gguf_writer.add_expert_weights_norm(norm_expert_weight)

# leading dense blocks
leading_dense = 0
moe_layers_enum = self.hparams.get("moe_layers_enum")
if isinstance(moe_layers_enum, str) and moe_layers_enum.strip():
moe_layers = sorted(int(i) for i in moe_layers_enum.strip().split(","))
if moe_layers:
leading_dense = max(0, moe_layers[0])
self.gguf_writer.add_leading_dense_block_count(leading_dense)
self.gguf_writer.add_moe_every_n_layers(int(self.hparams.get("moe_every_n_layer", 1)))

self.gguf_writer.add_layer_norm_rms_eps(self.hparams.get("rms_norm_eps", 1e-5))

# Optional per-layer SwiGLU clamps.
if (limits := self.hparams.get("swiglu_limits")) is not None:
limits_f = [0.0 if v is None else float(v) for v in limits[: self.block_count]]
self.gguf_writer.add_swiglu_clamp_exp(limits_f)
if (limits_shared := self.hparams.get("swiglu_limits_shared")) is not None:
limits_shared_f = [0.0 if v is None else float(v) for v in limits_shared[: self.block_count]]
self.gguf_writer.add_swiglu_clamp_shexp(limits_shared_f)

def modify_tensors(self, data_torch: Tensor, name: str, bid: int | None):
# remove mtp layers
if (m := re.match(r"model\.layers\.(\d+)\.", name)) is not None:
il = int(m.group(1))
n_main = int(self.hparams.get("num_hidden_layers", self.block_count))
if il >= n_main:
return
if name.endswith("norm.weight"):
data_torch += 1.0
# Map router bias (expert selection bias) to a GGUF bias tensor
if name.endswith(".moe.router_bias"):
name += ".bias"

if name.endswith((".self_attn.g_proj.weight", ".moe.gate.weight", ".moe.up_proj.weight", ".moe.gate_proj.weight", ".moe.down_proj.weight")):
data_torch = data_torch.squeeze().contiguous()

yield from super().modify_tensors(data_torch, name, bid)

def generate_extra_tensors(self) -> Iterable[tuple[str, Tensor]]:
# Step35 can optionally use Llama-3 style RoPE scaling (HF: rope_scaling.rope_type == "llama3").
# llama.cpp represents this via a single extra tensor: "rope_freqs.weight" (aka MODEL_TENSOR.ROPE_FREQS).
rope_params = self.rope_parameters.get("full_attention", self.rope_parameters)
rope_type = rope_params.get("rope_type") or ""
if rope_type.lower() != "llama3":
return

# Step35 configs can carry per-layer rope_theta as a list; for llama3 rope factors we use the base value.
rope_theta = self.hparams.get("rope_theta", 10000.0)
if isinstance(rope_theta, list):
rope_theta = rope_theta[0]
base = float(rope_theta)
if (dim := self.hparams.get("head_dim")) is None:
dim = self.hparams["hidden_size"] // self.hparams["num_attention_heads"]
dim = int(dim)

freqs = 1.0 / (base ** (torch.arange(0, dim, 2, dtype=torch.float32) / dim))

factor = float(rope_params.get("factor", 8.0))
low_freq_factor = float(rope_params.get("low_freq_factor", 1.0))
high_freq_factor = float(rope_params.get("high_freq_factor", 4.0))
old_context_len = int(rope_params.get("original_max_position_embeddings", self.hparams.get("original_max_position_embeddings", 8192)))

low_freq_wavelen = old_context_len / low_freq_factor
high_freq_wavelen = old_context_len / high_freq_factor

rope_factors: list[float] = []
for freq in freqs:
wavelen = 2 * math.pi / float(freq)
if wavelen < high_freq_wavelen:
rope_factors.append(1.0)
elif wavelen > low_freq_wavelen:
rope_factors.append(factor)
else:
smooth = (old_context_len / wavelen - low_freq_factor) / (high_freq_factor - low_freq_factor)
rope_factors.append(1.0 / ((1.0 - smooth) / factor + smooth))

yield (self.format_tensor_name(gguf.MODEL_TENSOR.ROPE_FREQS), torch.tensor(rope_factors, dtype=torch.float32))


@ModelBase.register("PanguEmbeddedForCausalLM")
class PanguEmbeddedModel(TextModel):
model_arch = gguf.MODEL_ARCH.PANGU_EMBED
Expand Down
69 changes: 69 additions & 0 deletions ggml/src/ggml-webgpu/ggml-webgpu-shader-lib.hpp
Original file line number Diff line number Diff line change
Expand Up @@ -465,4 +465,73 @@ inline ggml_webgpu_processed_shader ggml_webgpu_preprocess_unary_shader(
return result;
}

/** Binary **/

struct ggml_webgpu_binary_pipeline_key {
int type;
int op;
bool inplace;
bool overlap;

bool operator==(const ggml_webgpu_binary_pipeline_key & other) const {
return type == other.type && op == other.op && inplace == other.inplace && overlap == other.overlap;
}
};

struct ggml_webgpu_binary_pipeline_key_hash {
size_t operator()(const ggml_webgpu_binary_pipeline_key & key) const {
size_t seed = 0;
ggml_webgpu_hash_combine(seed, key.type);
ggml_webgpu_hash_combine(seed, key.op);
ggml_webgpu_hash_combine(seed, key.inplace);
ggml_webgpu_hash_combine(seed, key.overlap);
return seed;
}
};

struct ggml_webgpu_binary_shader_lib_context {
ggml_webgpu_binary_pipeline_key key;
uint32_t max_wg_size;
};

inline ggml_webgpu_processed_shader ggml_webgpu_preprocess_binary_shader(
pre_wgsl::Preprocessor & preprocessor,
const char * shader_src,
const ggml_webgpu_binary_shader_lib_context & context) {
std::vector<std::string> defines;
std::string op_name = ggml_op_name((ggml_op) context.key.op);
std::string variant = op_name;

defines.push_back(std::string("OP_") + op_name);

switch (context.key.type) {
case GGML_TYPE_F32:
defines.push_back("TYPE_F32");
variant += "_f32";
break;
case GGML_TYPE_F16:
defines.push_back("TYPE_F16");
variant += "_f16";
break;
default:
GGML_ABORT("Unsupported type for binary shader");
}

if (context.key.inplace) {
defines.push_back("INPLACE");
variant += "_inplace";
} else if (context.key.overlap) {
defines.push_back("OVERLAP");
variant += "_overlap";
}

defines.push_back(std::string("WG_SIZE=") + std::to_string(context.max_wg_size));
ggml_webgpu_processed_shader result;
result.wgsl = preprocessor.preprocess(shader_src, defines);
result.variant = variant;
ggml_webgpu_generic_shader_decisions * decisions = new ggml_webgpu_generic_shader_decisions();
decisions->wg_size = context.max_wg_size;
result.decisions = decisions;
return result;
}
#endif // GGML_WEBGPU_SHADER_LIB_HPP
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