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[KDA] Enable ReplaySSM for GLM-5.3 Flash (#40517)

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This commit is contained in:
William Hu
2026-09-21 10:34:08 -07:00
committed by GitHub
parent 3c71bb018a
commit 0cb37c018c
2 changed files with 14 additions and 10 deletions
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python/sglang/srt/configs/hybrid_arch.py
+5 -2
View File
@@ -133,6 +133,10 @@ def glm5_next_config(model_config: ModelConfig):
return None
def hybrid_kda_config(model_config: ModelConfig):
return kimi_linear_config(model_config) or glm5_next_config(model_config)
def linear_attn_model_spec(model_config: ModelConfig):
result = _get_linear_attn_registry_result(model_config)
return result[0] if result else None
@@ -142,8 +146,7 @@ def mambaish_config(model_config: ModelConfig):
existing = (
mamba2_config(model_config)
or hybrid_gdn_config(model_config)
or kimi_linear_config(model_config)
or glm5_next_config(model_config)
or hybrid_kda_config(model_config)
or hybrid_lightning_config(model_config)
)
if existing:
python/sglang/srt/mem_cache/kv_cache_configurator.py
+9 -8
View File
@@ -12,7 +12,7 @@ import torch
from sglang.srt.arg_groups.overrides import resolving_view
from sglang.srt.configs.hybrid_arch import (
hybrid_gdn_config,
kimi_linear_config,
hybrid_kda_config,
mambaish_config,
)
from sglang.srt.configs.model_config import (
@@ -285,12 +285,14 @@ class KVCacheConfigurator:
kv_cache_dtype_str: Optional[str] = None
mambaish_config: Optional[Any] = field(init=False)
hybrid_gdn_config: Optional[Any] = field(init=False)
hybrid_kda_config: Optional[Any] = field(init=False)
is_hybrid_swa_mtp_draft: bool = field(init=False)
draft_swa_full_capacity: bool = field(init=False)
def __post_init__(self) -> None:
self.mambaish_config = mambaish_config(self.model_config)
self.hybrid_gdn_config = hybrid_gdn_config(self.model_config)
self.hybrid_kda_config = hybrid_kda_config(self.model_config)
self.is_hybrid_swa_mtp_draft = (
self.is_draft_worker
and self.draft_model_idx is not None
@@ -1091,7 +1093,7 @@ class KVCacheConfigurator:
get_exec().mamba.enable_linear_replayssm_spec
and (
self.hybrid_gdn_config is not None
or kimi_linear_config(self.model_config) is not None
or self.hybrid_kda_config is not None
)
),
)
@@ -1132,11 +1134,11 @@ class KVCacheConfigurator:
if (
get_exec().mamba.enable_linear_replayssm_spec
and _algo in ("DSPARK", "DFLASH")
and kimi_linear_config(self.model_config) is None
and self.hybrid_kda_config is None
):
raise ValueError(
"--enable-linear-replayssm-spec with DSPARK/DFLASH requires a KDA "
"(kimi_linear) model; got a non-KDA model."
"model; got a non-KDA model."
)
req_to_token_pool = HybridReqToTokenPool(
size=max_num_reqs,
@@ -1172,7 +1174,7 @@ class KVCacheConfigurator:
get_exec().mamba.enable_linear_replayssm_spec
and (
self.hybrid_gdn_config is not None
or kimi_linear_config(self.model_config) is not None
or self.hybrid_kda_config is not None
)
),
)
@@ -2458,8 +2460,7 @@ class KVCacheConfigurator:
# The ring is not part of mamba_cache_per_req. GDN replay is fixed-size
# request scratch; KDA replay remains attached to each mamba slot.
replayssm_active = get_exec().mamba.enable_linear_replayssm_spec and (
self.hybrid_gdn_config is not None
or kimi_linear_config(self.model_config) is not None
self.hybrid_gdn_config is not None or self.hybrid_kda_config is not None
)
if replayssm_active:
record_len = get_exec().mamba.linear_replayssm_cache_len
@@ -2471,7 +2472,7 @@ class KVCacheConfigurator:
else:
replayssm_ring_per_req = 0
replayssm_ring_per_req = int(replayssm_ring_per_req * pp_layer_scale)
if replayssm_active and kimi_linear_config(self.model_config) is None:
if replayssm_active and self.hybrid_kda_config is None:
replay_req_slots = (
get_schedule().max_running_requests // self.ps.attn_dp_size + 1
)