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CEED / Laghos

High-order Lagrangian Hydrodynamics Miniapp
http://ceed.exascaleproject.org/miniapps
BSD 2-Clause "Simplified" License
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Path in Visit, no curved meshes seen in Visit plots despite higher order calculations #10

Closed cjoycd closed 6 years ago

cjoycd commented 6 years ago

The files to load in Visit plotting software basically writes in a directory results/Lagos, specified in Lagos.cpp through character "*basename". However, while trying to open the files "Laghos_00.mfem_root" in the results directory with Visit, the path detected by the Visit and path defined in the files "Laghos_00.mfem_root" get conflicted. I have get rid of this issue in a crude way by changing the character value "*basename" in Lagos.cpp to "Lagos". Then the results dumped in Lagos directory will be moved to directory "results" and open Visit in this directly to plot. This avoids the conflicts of the paths.

Another issue found is that after running higher order simulations using a command say "mpirun -np 4 laghos -p 1 -m data/square01_quad.mesh -rs 4 -tf 0.5 -ok 4 -ot 3 -visit", the plots of the mesh does not show as higher order (curved) meshes in Visit. Is there something I am missing while running the code?

Thanks in advance for the help

tzanio commented 6 years ago

Hi @cjoycd

I can't reproduce the first issue you are reporting -- are you using a recent version of VisIt? For me, after I run Laghos with -visit, I can just File/Open File in VisIt and select the Laghos_*.mfem_root database.

Regarding the second issue, you need to use the Multires control in VisIt to visualize high-order data. This is under Operators / Selection and you increase it to get better curvature representation. For physics fields, this is sufficient to see the variation in each element. To see the high-order curved mesh:

  1. Plot Subset / blocks
  2. Double-click on the plot and select the Wireframe option.
  3. Select Operators / Selection / MultiresControl for this plot
  4. Open the little triangle next to Subset and double-click the MultiresControl
  5. Increase the multires resolution.

Hope this helps, Tzanio

cc: @vladotomov, @cyrush

cjoycd commented 6 years ago

Dear Tzanio,

Thank you for your help...

I am using Visit version 2.10.0. The curved mesh plotting issue is resolved now. However, the path issue remains, may be the version issue. Its fine!

Is there any chance for an axis-symmetric (RZ) version of the Lagos code to be released in near future ?

With kind Regards --Sijoy C. D.

On Wed, Feb 7, 2018 at 7:43 PM, Tzanio Kolev notifications@github.com wrote:

Hi @cjoycd https://github.com/cjoycd

I can't reproduce the first issue you are reporting -- are you using a recent version of VisIt? For me, after I run Laghos with -visit, I can just File/Open File in VisIt and select the Laghos_*.mfem_root database.

Regarding the second issue, you need to use the Multires control in VisIt to visualize high-order data. This is under Operators / Selection and you increase it to get better curvature representation. For physics fields, this is sufficient to see the variation in each element. To see the high-order curved mesh:

  1. Plot Subset / blocks
  2. Double-click on the plot and select the Wireframe option.
  3. Select Operators / Selection / MultiresControl for this plot
  4. Open the little triangle next to Subset and double-click the MultiresControl
  5. Increase the multires resolution.

Hope this helps, Tzanio

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cyrush commented 6 years ago

@cjoycd VisIt 2.10.0 is from Oct 2015. VisIt2.13.0 is the latest, and I believe it has a newer version of MFEM, would it be possible to see if the newer version of VisIt resolves the issue?

cjoycd commented 6 years ago

Dear Cyrus Harrison,

OK, I will try to install latest Visit version and will see ... Thank you very much..

Regards

On Thu, Feb 8, 2018 at 8:56 PM, Cyrus Harrison notifications@github.com wrote:

@cjoycd https://github.com/cjoycd VisIt 2.10.0 is from Oct 2015. VisIt2.13.0 is the latest, and I believe it has a newer version of MFEM, would it be possible to see if the newer version of VisIt resolves the issue?

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vladotomov commented 6 years ago

Hi @cjoycd

We're currently not planning to add RZ functionality. I'm closing this, free free to reopen it you encounter other Visit issues.

Best, Vladimir

cjoycd commented 6 years ago

Dear Vladimir,

OK, Thanks!

Regads ​-- ​ S ​ijoy

​

On Fri, Feb 23, 2018 at 5:53 AM, Vladimir Tomov notifications@github.com wrote:

Hi @cjoycd https://github.com/cjoycd

We're currently not planning to add RZ functionality. I'm closing this, free free to reopen it you encounter other Visit issues.

Best, Vladimir

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