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LocalCsrShard

eqiora::distributed

Struct LocalCsrShard 

pub struct LocalCsrShard<'a> { /* private fields */ }
Description

Borrowed pairing of one canonical local layout and its owned-row CSR data.

DistributedCsr owns each LocalLayout exactly once. This view keeps shard action convenient without cloning that identity-bearing layout into the numerical storage.

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impl<'a> LocalCsrShard<'a>

Signature links:§LocalCsrShard

pub const fn layout(&self) -> &LocalLayout

Signature links:layoutLocalLayout

Owned/ghost vector layout used by this shard.

pub fn same_origin(self, other: LocalCsrShard<'a>) -> bool

Signature links:same_originLocalCsrShardbool

Whether two views borrow the exact same sealed layout and CSR storage.

This process-local authority check is intentionally distinct from structural equality and from durable algebraic identity. A repeated solver action can prove it received the admitted objects in constant time without walking resident coefficients; an equal clone is not the same origin.

pub fn capture_execution( self, ) -> Result<LocalCsrExecutionCapture<'a>, Diagnostic>

Signature links:capture_executionResultLocalCsrExecutionCaptureDiagnostic

Capture a backend-independent rectangular CSR execution projection.

Every global column is deterministically remapped into a local input ordered as [owned | ghost]. Rows, values, and layout identity remain derived from this accepted shard; the capture owns only the local remap and its exact coefficient permutation.

§Errors

Returns EQ0807 if the shard and layout disagree, the CSR shape is not canonical, or a global column is absent from both owned and ghost maps.

pub fn apply( &self, owned: &[f64], ghosts: &[f64], output: &mut [f64], ) -> Result<(), Diagnostic>

Signature links:applyf64f64f64Result()Diagnostic

Apply owned rows from owned and already-exchanged ghost values.

Inputs and output use the exact ascending orders in LocalLayout.

§Errors

Returns EQ0802 for shape/non-finite values or an internally missing local/ghost column.

pub fn diagonal( &self, output: &mut [f64], ) -> Result<DiagonalAvailability, Diagnostic>

Signature links:diagonalf64ResultDiagonalAvailabilityDiagnostic

Write diagonal entries for the owned rows in local-layout order.

§Errors

Returns EQ0802 when output does not match the owned-row extent.

Trait Implementations§

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impl<'a> Clone for LocalCsrShard<'a>

Signature links:§CloneLocalCsrShard
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fn clone(&self) -> LocalCsrShard<'a>

Signature links:§cloneLocalCsrShard
Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Signature links:unstableSource§clone_from
Performs copy-assignment from source. Read more
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impl<'a> Debug for LocalCsrShard<'a>

Signature links:§DebugLocalCsrShard
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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Signature links:§fmtFormatterResult()Error
Formats the value using the given formatter. Read more
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impl<'a> PartialEq for LocalCsrShard<'a>

Signature links:§PartialEqLocalCsrShard
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fn eq(&self, other: &LocalCsrShard<'a>) -> bool

Signature links:§eqLocalCsrShardbool
Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

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

Signature links:unstableSource§ne&Rhsbool
Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<'a> Copy for LocalCsrShard<'a>

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impl<'a> StructuralPartialEq for LocalCsrShard<'a>

Auto Trait Implementations§

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impl<'a> Freeze for LocalCsrShard<'a>

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impl<'a> RefUnwindSafe for LocalCsrShard<'a>

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impl<'a> Send for LocalCsrShard<'a>

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impl<'a> Sync for LocalCsrShard<'a>

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impl<'a> Unpin for LocalCsrShard<'a>

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impl<'a> UnsafeUnpin for LocalCsrShard<'a>

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impl<'a> UnwindSafe for LocalCsrShard<'a>

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