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From "Janardhan (JIRA)" <>
Subject [jira] [Assigned] (SYSTEMML-1931) Support logical operators AND, OR, XOR, NOT over matrices
Date Thu, 04 Jan 2018 11:34:00 GMT


Janardhan reassigned SYSTEMML-1931:

    Assignee: Matthias Boehm  (was: Janardhan)

> Support logical operators AND, OR, XOR, NOT over matrices
> ---------------------------------------------------------
>                 Key: SYSTEMML-1931
>                 URL:
>             Project: SystemML
>          Issue Type: Bug
>            Reporter: Matthias Boehm
>            Assignee: Matthias Boehm
> So far, all logical operators (AND, OR, XOR, NOT) are only supported over scalars. This
task aims to add support for logical operators over matrices. In detail, this entails:
> * New test cases for all logical operators over dense and sparse matrices and CP, MR,
and SPARK execution types.
> * Parser/compiler integration: (a) validation of boolean expressions to check the validity
of inputs (scalar or matrices), (b) propagation of data type and value types (double if at
least one matrix input), (b) sparsity estimates for the individual operators.
> * Runtime integration: Extend the function objects of AND, OR, XOR, NOT to combinations
of double, and boolean inputs.
> * Fix (extend) opcode checks of individual instructions.

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