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support cpu_only match #179

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Merged
linhu-nv merged 1 commit into from
Jun 9, 2026
Merged

support cpu_only match #179

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2 changes: 2 additions & 0 deletions flexkv/cache/cache_engine.py
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Original file line number Diff line number Diff line change
Expand Up @@ -361,6 +361,8 @@ class CacheStrategy:

DEFAULT_CACHE_STRATEGY = CacheStrategy()

CPUONLY_CACHE_STRATEGY = CacheStrategy(ignore_gpu=False, ignore_ssd=True, ignore_remote=True, ignore_gds=True)

class GlobalCacheEngine:
def __init__(self, cache_config: CacheConfig, model_config: ModelConfig, redis_meta: RedisMeta = None,
event_collector: Optional[KVEventCollector] = None):
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3 changes: 3 additions & 0 deletions flexkv/kvmanager.py
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Expand Up @@ -175,6 +175,7 @@ def get_match(self,
token_mask: Optional[Union[torch.Tensor, np.ndarray]] = None,
layer_granularity: int = -1,
dp_id: int = 0,
cpu_only: bool = False,
namespace: Optional[List[str]] = None,
) -> Tuple[int, np.ndarray]:
if isinstance(token_ids, torch.Tensor):
Expand All @@ -185,12 +186,14 @@ def get_match(self,
task_id, mask = self.dp_client.get_match(token_ids,
token_mask,
layer_granularity,
cpu_only=cpu_only,
namespace=namespace)
else:
task_id, mask = self.kv_task_engine.get_match(token_ids,
token_mask,
layer_granularity,
dp_id,
cpu_only=cpu_only,
namespace=namespace)
return task_id, mask

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16 changes: 15 additions & 1 deletion flexkv/kvtask.py
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Expand Up @@ -17,7 +17,12 @@
from flexkv.common.block import hash_token
from flexkv.common.transfer import TransferOpGraph, merge_to_batch_graph, get_nvtx_default_color, CompletedOp
from flexkv.common.tracer import FlexKVTracer
from flexkv.cache.cache_engine import GlobalCacheEngine, DEFAULT_CACHE_STRATEGY
from flexkv.cache.cache_engine import (
GlobalCacheEngine,
CacheStrategy,
DEFAULT_CACHE_STRATEGY,
CPUONLY_CACHE_STRATEGY,
)
from flexkv.transfer_manager import TransferManagerHandle, TransferManagerOnRemote
from flexkv.common.request import KVResponseStatus, KVResponse
from flexkv.transfer_manager import (
Expand Down Expand Up @@ -226,6 +231,7 @@ def create_get_task(self,
layer_granularity: int = -1,
dp_id: int = 0,
is_fake_slot_mapping: bool = False,
temp_cache_strategy: CacheStrategy = DEFAULT_CACHE_STRATEGY,
namespace: Optional[List[str]] = None,
) -> None:
if task_id in self.tasks:
Expand All @@ -238,6 +244,7 @@ def create_get_task(self,
layer_num=self.model_config.num_layers,
layer_granularity=layer_granularity,
dp_id=dp_id,
temp_cache_strategy=temp_cache_strategy,
namespace=namespace)
self.tasks[task_id] = KVTask(
task_id=task_id,
Expand Down Expand Up @@ -696,6 +703,7 @@ def get_match(self,
token_mask: Optional[np.ndarray] = None,
layer_granularity: int = -1,
dp_id: int = 0,
cpu_only: bool = False,
task_id: int = -1,
namespace: Optional[List[str]] = None) -> Tuple[int, np.ndarray]:
nvtx.push_range(f"get match: task_id={task_id}", color=get_nvtx_default_color())
Expand All @@ -709,6 +717,7 @@ def get_match(self,
token_mask=token_mask,
layer_granularity=layer_granularity,
dp_id=dp_id,
cpu_only=cpu_only,
task_id=task_id,
namespace=namespace)
# trace get match request
Expand All @@ -731,6 +740,7 @@ def _get_match_impl(self,
token_mask: Optional[np.ndarray] = None,
layer_granularity: int = -1,
dp_id: int = 0,
cpu_only: bool = False,
task_id: int = -1,
namespace: Optional[List[str]] = None) -> Tuple[int, np.ndarray]:
if token_mask is None:
Expand All @@ -739,6 +749,9 @@ def _get_match_impl(self,
layer_granularity = self.model_config.num_layers
if task_id == -1:
task_id = self._gen_task_id()
temp_cache_strategy = DEFAULT_CACHE_STRATEGY
if cpu_only:
temp_cache_strategy = CPUONLY_CACHE_STRATEGY
nvtx.push_range(f"get match: task_id={task_id}", color=get_nvtx_default_color())
self.create_get_task(task_id,
token_ids,
Expand All @@ -747,6 +760,7 @@ def _get_match_impl(self,
layer_granularity,
dp_id,
is_fake_slot_mapping=is_fake_slot_mapping,
temp_cache_strategy=temp_cache_strategy,
namespace=namespace)
self._process_empty_graph(task_id)
nvtx.pop_range()
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2 changes: 2 additions & 0 deletions flexkv/server/client.py
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Original file line number Diff line number Diff line change
Expand Up @@ -156,12 +156,14 @@ def get_match(
token_ids: np.ndarray,
token_mask: Optional[np.ndarray],
layer_granularity: int,
cpu_only: bool = False,
namespace: Optional[List[str]] = None,
) -> Optional[Tuple[int, np.ndarray]]:
req = GetMatchRequest(self.dp_client_id,
token_ids,
token_mask if token_mask is not None else None,
layer_granularity,
cpu_only,
self._get_task_id(),
namespace)
self.send_to_server.send_pyobj(req)
Expand Down
1 change: 1 addition & 0 deletions flexkv/server/request.py
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Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,7 @@ class GetMatchRequest:
token_ids: np.ndarray
token_mask: Optional[np.ndarray]
layer_granularity: int
cpu_only: bool = False
task_id: int = -1
namespace: Optional[List[str]] = None

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1 change: 1 addition & 0 deletions flexkv/server/server.py
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Expand Up @@ -391,6 +391,7 @@ def _handle_get_match_request(self, req: GetMatchRequest) -> None:
token_mask=req.token_mask,
layer_granularity=req.layer_granularity,
dp_id=req.dp_client_id,
cpu_only=req.cpu_only,
task_id=req.task_id,
namespace=req.namespace,
)
Expand Down
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