Struct DsaSelectGeometry 

pub struct DsaSelectGeometry {
    pub seq: usize,
    pub q_rows: usize,
    pub n_pools_full: usize,
    pub n_pools: usize,
    pub select_k: usize,
    pub out_width: usize,
    pub topk_np2: usize,
    pub topk_smem: usize,
    pub index_head_dim: usize,
    pub index_heads: usize,
    pub index_kpool: usize,
}

2026-09-25: Launch geometry for one selection pass, computed by Self::plan before any launch.

Fields

seq: usize

2026-09-25: Tokens resident in the indexer cache.

q_rows: usize

2026-09-25: Query rows in this pass.

n_pools_full: usize

2026-09-25: Pools dsa_kpool_compress writes, including the trailing partial one.

n_pools: usize

2026-09-25: Complete pools, the prefix the later kernels read.

select_k: usize

2026-09-25: Pools selected per query.

out_width: usize

2026-09-25: Emitted index-row width.

topk_np2: usize

2026-09-25: Tile width the top-k select walks the pool axis in: topk_tile, or the next power of two (at least 2) at or above n_pools when that is smaller.

topk_smem: usize

2026-09-25: Shared memory dsa_topk_pools needs, in bytes.

index_head_dim: usize

2026-09-25: Channels per compress block.

index_heads: usize

index_kpool: usize

Implementations

impl DsaSelectGeometry

pub fn plan(cfg: &Glm5NextDsaConfig, seq: usize, q_rows: usize) -> Result<Self>

2026-09-25: Plan a selection over a contiguous, unpadded cache.

Fails when cfg fails validation, when q_rows or seq is 0, or when select_k exceeds topk_np2.

Trait Implementations

impl Clone for DsaSelectGeometry

fn clone(&self) -> DsaSelectGeometry

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DsaSelectGeometry

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

Formats the value using the given formatter.

impl PartialEq for DsaSelectGeometry

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

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

impl Copy for DsaSelectGeometry

impl Eq for DsaSelectGeometry

impl StructuralPartialEq for DsaSelectGeometry