[MAHOUT-1875] Use faster shallowCopy for dense matices in blockify drm/package.blockify(..)

• Type: Improvement
• Status: Reopened
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.12.2
• Fix Version/s: classic-15.0
• Epic Link: Samsara-framework
• Assignee: Shashanka Balakuntala Srinivasa
• Reporter: Andrew Palumbo
• Created: 25/Jun/16 16:15
• Updated: 31/Jan/24 22:07

Description

In sparkbindings.drm/package.blockify(...), after testing the density of an incoming block, use DenseMatrix(blockAsArrayOfDoubles, true) to shallow copy the backing vector array into the DenseMatrix.

Issue Links

• links to: GitHub Pull Request #264