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[Hardware][Powerpc]Enable prefix caching and chunked prefill for ppc64le #35081

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Merged
bigPYJ1151 merged 5 commits into from
Feb 26, 2026
+5 −6
Merged

[Hardware][Powerpc]Enable prefix caching and chunked prefill for ppc64le #35081

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ca61b6a
Feat: Enable prefix caching and chunked prefill for ppc64le
Feb 23, 2026
57ca2f3
Fix: Update comment
Feb 23, 2026
5d11198
Fix: Merge conflict
Feb 25, 2026
4221da7
Merge branch 'main' into feat/enable_pc_cp_ppc
bigPYJ1151 Feb 25, 2026
3d3ce0a
Merge branch 'main' into feat/enable_pc_cp_ppc
bigPYJ1151 Feb 25, 2026
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11 changes: 5 additions & 6 deletions vllm/engine/arg_utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2017,20 +2017,19 @@ def _set_default_chunked_prefill_and_prefix_caching_args(
)

# Disable chunked prefill and prefix caching for:
# POWER (ppc64le)/RISCV CPUs in V1
# RISCV CPUs in V1
if current_platform.is_cpu() and current_platform.get_cpu_architecture() in (
CpuArchEnum.POWERPC,
CpuArchEnum.RISCV,
):
logger.info(
"Chunked prefill is not supported for POWER, "
"and RISC-V CPUs; "
"Chunked prefill is not supported for"
"RISC-V CPUs; "
"disabling it for V1 backend."
)
self.enable_chunked_prefill = False
logger.info(
"Prefix caching is not supported for POWER, "
"and RISC-V CPUs; "
"Prefix caching is not supported for "
"RISC-V CPUs; "
"disabling it for V1 backend."
)
self.enable_prefix_caching = False
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