[
https://issues.apache.org/jira/browse/SPARK-60254?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
ASF GitHub Bot updated SPARK-60254:
-----------------------------------
Labels: pull-request-available (was: )
> Replace Breeze delegation in vector and matrix primitives
> ---------------------------------------------------------
>
> Key: SPARK-60254
> URL: https://issues.apache.org/jira/browse/SPARK-60254
> Project: Spark
> Issue Type: Improvement
> Components: MLlib
> Affects Versions: 5.0.0
> Reporter: DB Tsai
> Priority: Major
> Labels: pull-request-available
>
> Spark's local and legacy vector/matrix implementations still delegate basic
> operations to Breeze. These operations can be implemented directly using
> Spark's existing dense and sparse storage.
> Replace Breeze delegation for vector element access, sparse CSC/CSR layout
> conversion, matrix equality and sparse hashing, and matrix formatting. Share
> the matrix implementations with legacy MLlib through its existing ML
> adapters. Preserve compatibility for transposed matrices, explicitly stored
> zeros, NaN and signed zero, output truncation, and locale-sensitive
> formatting.
> This is a first step toward reducing Spark's Breeze dependency. Breeze
> remains a runtime dependency for algorithm consumers, and the existing
> asBreeze/fromBreeze adapters remain unchanged. Removing the dependency itself
> is outside this issue's scope.
> Add regression coverage for sparse layout conversion, equality and hashing
> parity, and formatting parity in both local and legacy linear algebra suites.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
