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SassReport

Struct SassReport 

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pub struct SassReport {
    pub kernel: String,
    pub instructions: usize,
    pub imma: usize,
    pub ldsm: usize,
    pub reuse_insns: usize,
    pub registers: usize,
    pub avg_stall_x100: u64,
}
Expand description

What the COMPILER learns about the machine code ptxas produced for one of its kernels — the SASS-awareness the backend needs to reason about the ptxas ceiling (register pressure/occupancy, tensor-core utilisation, reuse-cache usage). Every field is read from the real cubin, not guessed.

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§kernel: String§instructions: usize§imma: usize§ldsm: usize§reuse_insns: usize§registers: usize§avg_stall_x100: u64

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impl SassReport

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pub fn blocks_per_sm(&self, threads: usize) -> usize

Estimate resident blocks/SM from the register count (Ampere: 65,536 regs/SM) at threads per block — this is where a register-bound kernel loses to cuBLAS, and the compiler can now SEE it.

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pub fn analyze(cubin_path: &Path, kernel: &str) -> Option<SassReport>

Analyse the cubin a compiler backend just produced: parse its machine code + control codes and correlate with the SASS mnemonics. The backend calls this to know how well ptxas scheduled its kernel.

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impl Clone for SassReport

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fn clone(&self) -> SassReport

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for SassReport

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl PartialEq for SassReport

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fn eq(&self, other: &SassReport) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for SassReport

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impl StructuralPartialEq for SassReport

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impl<T> Any for T
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impl<T> BorrowMut<T> for T
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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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