<div dir="ltr">Dear All,<div><br></div><div>I want to generate a prismatic mesh from a base spherical surface mesh. I first refine the base icosahedron sequential mesh to some extent, distribute the mesh, continue the refinement in parallel, project the mesh to a unit sphere, and then finally extrude the mesh. The following is the code I am using. As the extrusion is performed in parallel, the extruded mesh seems to be broken as shown in the attached figure. May I know how to get an intact extruded mesh in parallel? Also, is it possible to make mesh refinement respect the spherical surface geometry, without having to project it using a function as shown below?<div><div><br></div><div>Thanks,</div><div>Bhargav</div><div><br></div><div>/* refine the sequential mesh first */<br> for (int r = 0; r < numRefinePre; ++r) {<br> DM rdm = NULL;<br> DMRefine(dm, MPI_COMM_WORLD, &rdm);<br> DMDestroy(&dm);<br> dm = rdm;<br> }<br><br> /* project to a unit sphere */<br> ierr = ProjectToUnitSphere(dm); CHKERRQ(ierr);<br><br> /* create and distribute DM */<br> ierr = DMPlexDistribute(dm, 0, NULL, &dmDist);CHKERRQ(ierr);<br> if (dmDist) {<br> DMDestroy(&dm);<br> dm = dmDist;<br> }<br><br> /* refine the mesh in parallel */<br> for (int r = 0; r < numRefine; ++r) {<br> DM rdm = NULL;<br> DMRefine(dm, MPI_COMM_WORLD, &rdm);<br> DMDestroy(&dm);<br> dm = rdm;<br> }<br><br> /* project to a unit sphere */<br> ierr = ProjectToUnitSphere(dm); CHKERRQ(ierr);<br><br> ierr = DMPlexExtrude(dm, numLayers-1, radialThickness, PETSC_FALSE, NULL, PETSC_TRUE, &dm3D);CHKERRQ(ierr);<br><br> if (dm3D) {<br> DMDestroy(&dm);<br> dm = dm3D;<br> }<br></div><div><br></div></div></div></div>
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