# Error in sparsesolver or UMFPACK

**URL:** <https://community.freefem.org/t/error-in-sparsesolver-or-umfpack/596>\
**Category:** General Discussion\
**Created:** [September 25, 2020, 7:43am UTC](https://community.freefem.org/t/error-in-sparsesolver-or-umfpack/596 "2020-09-25T07:43:43Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![GalinaY](https://avatars.discourse-cdn.com/v4/letter/g/e480ec/32.png) [@GalinaY](https://community.freefem.org/u/GalinaY)\
**Post date:** [September 25, 2020, 7:43am UTC](https://community.freefem.org/t/error-in-sparsesolver-or-umfpack/596/1 "2020-09-25T07:43:43Z")

</div>

Hello, I am trying to solve a system of poroelasticity using P2 elements and sparsesolver. Number of mesh elements - 43936, number of mesh nodes- 21974.

The output I am getting is :  
Error umpfack umfpack\_di\_numeric status -1  
Error umfpack\_di\_solve status -3

I would like to ask what does this message implies.

---

<div class="post-metadata">

**Author:** ![chaimaa](https://avatars.discourse-cdn.com/v4/letter/c/c0e974/32.png) [@chaimaa](https://community.freefem.org/u/chaimaa)\
**Post date:** [June 2, 2021, 2:33pm UTC](https://community.freefem.org/t/error-in-sparsesolver-or-umfpack/596/2 "2021-06-02T14:33:03Z")

</div>

hi,  
Did you find any solution to that problem ?i have the same error and only with p2 element type?

---

<div class="post-metadata">

**Author:** ![jsmacd](https://avatars.discourse-cdn.com/v4/letter/j/df788c/32.png) [@jsmacd](https://community.freefem.org/u/jsmacd)\
**Post date:** [February 1, 2023, 1:47am UTC](https://community.freefem.org/t/error-in-sparsesolver-or-umfpack/596/3 "2023-02-01T01:47:39Z")

</div>

I have also had the same error, with P1 elements, and only on finer meshes. Any understanding of the issue would be great!

---

<div class="post-metadata">

**Author:** ![marchywka](https://avatars.discourse-cdn.com/v4/letter/m/ee59a6/32.png) [@marchywka](https://community.freefem.org/u/marchywka)\
**Post date:** [February 1, 2023, 9:13am UTC](https://community.freefem.org/t/error-in-sparsesolver-or-umfpack/596/4 "2023-02-01T09:13:40Z")

</div>

If you set the verbosity higher or try another solver do the messages help  
point to a specific issue?

---

<div class="post-metadata">

**Author:** ![jsmacd](https://avatars.discourse-cdn.com/v4/letter/j/df788c/32.png) [@jsmacd](https://community.freefem.org/u/jsmacd)\
**Post date:** [February 1, 2023, 3:07pm UTC](https://community.freefem.org/t/error-in-sparsesolver-or-umfpack/596/5 "2023-02-01T15:07:02Z")

</div>

Thanks for your reply. I solved this issue with UMFPACK64 🙂