[SYSTEMDS-1990] New algebraic simplification rewrites

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Done
• Fix Version/s: SystemML 1.0.0
• Assignee: Matthias Boehm
• Reporter: Matthias Boehm
• Created: 06/Nov/17 05:11
• Updated: 01/Dec/17 03:13
• Resolved: 30/Nov/17 21:56

Description

This task serves as an umbrella for new simplification rewrites:

• Generalization of the existing fuse binary-datagen rewrite
• Generalization of the existing binary outer rewrite
• New cbind/rbind folding rewrites
• New order chain fusion
• Generalized table rewrites (binary to unary, table to rexpand)
• Extended vectorization of left and right indexing
• Remove empty blocks (cleanup rewrite)

Issue Links

• is related to: SYSTEMDS-2032 Lenet on Mnist produced incorrect results (and low accuracy)