# Julia silently stop working while computing the rank of some not that big matrix

**URL:** https://discourse.julialang.org/t/julia-silently-stop-working-while-computing-the-rank-of-some-not-that-big-matrix/21463
**Category:** Performance
**Created:** [March 4, 2019, 3:13pm UTC](https://discourse.julialang.org/t/julia-silently-stop-working-while-computing-the-rank-of-some-not-that-big-matrix/21463 "2019-03-04T15:13:08Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![Tamas\_Papp](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tamas_papp/32/25949_2.png) [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)
#### Post date: [March 4, 2019, 3:18pm UTC](https://discourse.julialang.org/t/julia-silently-stop-working-while-computing-the-rank-of-some-not-that-big-matrix/21463/2 "2019-03-04T15:18:10Z")

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> [@Adrien](#):
>
> the computation starts, do something like 70% of the job fairly quickly and then just stop working, ie it’s not crashing or throwing any error, it’s just not doing anything at all.

The first thing I would suspect is a bug in your code. Please provide a _self-contained_ MWE, with a matrix that produces the problem. You could also test building blocks.

> [@Please read: make it easier to help you](https://discourse.julialang.org/t/psa-make-it-easier-to-help-you/14757):
>
> Welcome to the Julia Discourse! We are enthusiastic about helping Julia programmers, both beginner and experienced. This public service announcement (PSA) outlines best practices when asking for help. Following these points makes it easier for us to help you and more likely you’ll get a prompt, useful answer. Keywords are highlighted to make it easier to refer to specific points. Choose a descriptive title that captures the key part of your question, eg “plots with multiple axes” instead of …

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