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24 changes: 13 additions & 11 deletions vllm/config/vllm.py
Original file line number Diff line number Diff line change
Expand Up @@ -608,17 +608,19 @@ def __post_init__(self):
)
current_platform.check_and_update_config(self)

assert (
self.parallel_config.dcp_kv_cache_interleave_size
<= self.cache_config.block_size
and self.cache_config.block_size
% self.parallel_config.dcp_kv_cache_interleave_size
== 0
), (
f"Block_size({self.cache_config.block_size}) should be "
"greater than or equal to and divisible by dcp_kv_cache_interleave_size "
f"({self.parallel_config.dcp_kv_cache_interleave_size})."
)
# If DCP, ensure the block size is right.
if self.parallel_config.decode_context_parallel_size > 1:
assert (
self.parallel_config.dcp_kv_cache_interleave_size
<= self.cache_config.block_size
and self.cache_config.block_size
% self.parallel_config.dcp_kv_cache_interleave_size
== 0
), (
f"Block_size({self.cache_config.block_size}) should be greater "
"than or equal to and divisible by dcp_kv_cache_interleave_size "
f"({self.parallel_config.dcp_kv_cache_interleave_size})."
)

assert (
self.parallel_config.dcp_kv_cache_interleave_size == 1
Expand Down