# Return code = 0, signaled with Killed

**URL:** <https://community.geodynamics.org/t/return-code-0-signaled-with-killed/2145>\
**Category:** PyLith\
**Created:** [December 27, 2021, 2:07am UTC](https://community.geodynamics.org/t/return-code-0-signaled-with-killed/2145 "2021-12-27T02:07:18Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![luxiaokong](https://avatars.discourse-cdn.com/v4/letter/l/3d9bf3/32.png) [@luxiaokong](https://community.geodynamics.org/u/luxiaokong)\
**Post date:** [December 27, 2021, 2:07am UTC](https://community.geodynamics.org/t/return-code-0-signaled-with-killed/2145/1 "2021-12-27T02:07:18Z")

</div>

Dear Pylith team,

I have encountered the following mistake when I compute Green’s functions. I don’t know how to solve it. Any suggestions or help will be greatly appreciated.

 ![2021-12-27 10-01-37 的屏幕截图](https://canada1.discourse-cdn.com/flex036/uploads/geodynamics/original/1X/beb6d89806024a4df45438f1f9c5b62245acdceb.png)

Nick

---

<div class="post-metadata">

**Author:** ![baagaard](https://yyz2.discourse-cdn.com/flex036/user_avatar/community.geodynamics.org/baagaard/32/615_2.png) [@baagaard](https://community.geodynamics.org/u/baagaard)\
**Post date:** [December 27, 2021, 2:40am UTC](https://community.geodynamics.org/t/return-code-0-signaled-with-killed/2145/2 "2021-12-27T02:40:09Z")

</div>

You might be running out of memory. The best way to diagnose this is to run a system monitoring application like `top` or something similar and watch the memory usage while PyLith is running. The PyLith processes are shown as `nemesis` or `mpinemesis`.

If you are running out of memory, then the options are:

1. Run on a machine with more memory.
2. Run on a cluster and make sure you distribute the job among a sufficient number of processors.
3. Reduce the size of your mesh.