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HostIsaReduce

Struct HostIsaReduce 

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pub struct HostIsaReduce { /* private fields */ }
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Host-ISA integer reduction: portable scalar vs AVX2 when detected.

This release’s step beyond “algorithm stand-ins”: the fast path uses real target_feature(enable = "avx2") code selected at runtime via is_x86_feature_detected!("avx2"). It is still not a separately compiled -march=native binary — see docs for that distinction.

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impl HostIsaReduce

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pub fn new(n: usize) -> Self

Create with n elements.

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pub fn run_portable(&self) -> i64

Portable scalar sum.

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pub fn run_host_isa(&self) -> i64

Host-ISA path: AVX2 when available, else scalar.

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pub fn avx2_active() -> bool

Whether AVX2 was selected on this process.

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pub fn verify_correctness(&self) -> bool

Correctness: portable and host-ISA must agree.

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