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Can I generate my mesh using the cluster?

Posted Aug 18, 2021, 10:16 a.m. EDT General, COMSOL Server, Mesh Version 5.6 3 Replies

Guilherme Theis
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I have been trying to simulate a complex structure and I have been running into out of memory for that.

I do have access to a cluster with 768 Gb of RAM which would not stumble in this problem (my WS has 16 Gb) but I can't seem to find any way to do this, which seems that should be quite easy to do.

Is there a way to do this?

3 Replies Last Post Aug 18, 2021, 10:55 a.m. EDT
Jeff Hiller COMSOL Employee

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Posted: 3 years ago Aug 18, 2021, 10:35 a.m. EDT
Updated: 3 years ago Aug 18, 2021, 10:48 a.m. EDT

Hi Guilherme,

Typically, meshing requires significantly less memory than solving. Consequently, if a machine runs out of memory while meshing, it is very likely that it would run out of memory while solving if you generated the mesh on a more powerful computer.

Best,

Jeff

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Jeff Hiller
Hi Guilherme, Typically, meshing requires significantly less memory than solving. Consequently, if a machine runs out of memory while meshing, it is very likely that it would run out of memory while solving if you generated the mesh on a more powerful computer. Best, Jeff
Guilherme Theis
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Posted: 3 years ago Aug 18, 2021, 10:41 a.m. EDT

Hi Jeff,

I agree with that. I would imagine that if I had a 32 GB of RAM it'd be fine. I will solve it using the cluster to avoid this memory bottleneck. My question was how to send the mesh generation to the cluster since I have much more memory there.

Hi Jeff, I agree with that. I would imagine that if I had a 32 GB of RAM it'd be fine. I will solve it using the cluster to avoid this memory bottleneck. My question was how to send the mesh generation to the cluster since I have much more memory there.
Jeff Hiller COMSOL Employee

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Posted: 3 years ago Aug 18, 2021, 10:55 a.m. EDT
Updated: 3 years ago Aug 19, 2021, 3:09 p.m. EDT

So you want to mesh and solve on the cluster? OK. I had misunderstood your initial post. It makes more sense now.

Cluster computing is only possible with a Floating Network License, so make sure that that is the license type you have. If you do, one place to start learning about running COMSOL on a cluster is the Installation Manual, version 5.6: see page 74 and following. But there are many other resources that you'll find by searching for "cluster" on the comsol.com website, including this overview video and this Knowledge Base page.

Best,

Jeff

-------------------
Jeff Hiller
So you want to mesh and solve on the cluster? OK. I had misunderstood your initial post. It makes more sense now. Cluster computing is only possible with a Floating Network License, so make sure that that is the license type you have. If you do, one place to start learning about running COMSOL on a cluster is the Installation Manual, version 5.6: see page 74 and following. But there are many other resources that you'll find by searching for "cluster" on the comsol.com website, including [this overview video](https://www.comsol.com/video/cluster-computing-with-the-comsol-multiphysics-software) and [this Knowledge Base page](https://www.comsol.com/support/knowledgebase/1001). Best, Jeff

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