NVIDIA/AMGX

Bad error message for singular matrix.

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#203 opened on Sep 7, 2022

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 (1 comment) (0 reactions) (0 assignees)Cuda (186 forks)auto 404
enhancementgood first issue

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Description

Downstream issue: https://github.com/JuliaGPU/AMGX.jl/issues/21.

The input matrix in that issue is singular but there seems to be some issue where instead of getting a well-descriptive error message, the more general Fail to get info from cudense is printed.

Contributor guide

Research direction
Find the code path that handles singular matrices and check where the generic error message is generated. Look at the AMGX error handling, especially the 'Fail to get info from cudense' message. Trace back to understand why the specific singular matrix error is not being thrown.
Tech stack
ccpp
Domain
backendapi
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitCUDA
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65