[SYSTEMDS-923] Performance csv/textcell reblock of sparse matrices

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: SystemML 0.11
• Assignee: Matthias Boehm
• Reporter: Matthias Boehm
• Created: 15/Sep/16 20:26
• Updated: 16/Sep/16 18:38
• Resolved: 16/Sep/16 18:38

Description

During csv and textcell reblock any temporary blocks are created in dense format. This leads to unnecessary allocation and dense-sparse block conversions in case of sparse matrices.