[SYSTEMDS-2441] Incorrect spark matrix market reblock to binary

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: SystemML 1.2
• Epic Link: Improved support for matrix market file formats
• Assignee: Matthias Boehm
• Reporter: Matthias Boehm
• Created: 14/Jul/18 02:11
• Updated: 14/Jul/18 04:32
• Resolved: 14/Jul/18 04:32

Description

The spark reblock of files in matrix market format into binary format produces currently wrong results because the meta data row (nrow, ncol, nnz) is interpreted as data row. Specifically, the output matrix has an incorrect value (i.e., the nnz meta data) in the bottom-right cell.