1 #define PETSCDM_DLL 2 #include <petsc/private/dmpleximpl.h> /*I "petscdmplex.h" I*/ 3 4 /*@C 5 DMPlexCreateCGNS - Create a `DMPLEX` mesh from a CGNS file. 6 7 Collective 8 9 Input Parameters: 10 + comm - The MPI communicator 11 . filename - The name of the CGNS file 12 - interpolate - Create faces and edges in the mesh 13 14 Output Parameter: 15 . dm - The `DM` object representing the mesh 16 17 Level: beginner 18 19 Note: 20 https://cgns.github.io 21 22 .seealso: [](chapter_unstructured), `DM`, `DMPLEX`, `DMPlexCreate()`, `DMPlexCreateCGNS()`, `DMPlexCreateExodus()` 23 @*/ 24 PetscErrorCode DMPlexCreateCGNSFromFile(MPI_Comm comm, const char filename[], PetscBool interpolate, DM *dm) 25 { 26 PetscFunctionBegin; 27 PetscValidCharPointer(filename, 2); 28 #if defined(PETSC_HAVE_CGNS) 29 PetscCall(DMPlexCreateCGNSFromFile_Internal(comm, filename, interpolate, dm)); 30 #else 31 SETERRQ(comm, PETSC_ERR_SUP, "Loading meshes requires CGNS support. Reconfigure using --with-cgns-dir"); 32 #endif 33 PetscFunctionReturn(PETSC_SUCCESS); 34 } 35 36 /*@ 37 DMPlexCreateCGNS - Create a `DMPLEX` mesh from a CGNS file ID. 38 39 Collective 40 41 Input Parameters: 42 + comm - The MPI communicator 43 . cgid - The CG id associated with a file and obtained using cg_open 44 - interpolate - Create faces and edges in the mesh 45 46 Output Parameter: 47 . dm - The `DM` object representing the mesh 48 49 Level: beginner 50 51 Note: 52 https://cgns.github.io 53 54 .seealso: [](chapter_unstructured), `DM`, `DMPLEX`, `DMPlexCreate()`, `DMPlexCreateExodus()` 55 @*/ 56 PetscErrorCode DMPlexCreateCGNS(MPI_Comm comm, PetscInt cgid, PetscBool interpolate, DM *dm) 57 { 58 PetscFunctionBegin; 59 #if defined(PETSC_HAVE_CGNS) 60 PetscCall(DMPlexCreateCGNS_Internal(comm, cgid, interpolate, dm)); 61 #else 62 SETERRQ(comm, PETSC_ERR_SUP, "Loading meshes requires CGNS support. Reconfigure using --download-cgns"); 63 #endif 64 PetscFunctionReturn(PETSC_SUCCESS); 65 } 66