MFEM  v4.4.0
Finite element discretization library
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fmsdatacollection.hpp
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1 // Copyright (c) 2010-2022, Lawrence Livermore National Security, LLC. Produced
2 // at the Lawrence Livermore National Laboratory. All Rights reserved. See files
3 // LICENSE and NOTICE for details. LLNL-CODE-806117.
4 //
5 // This file is part of the MFEM library. For more information and source code
6 // availability visit https://mfem.org.
7 //
8 // MFEM is free software; you can redistribute it and/or modify it under the
9 // terms of the BSD-3 license. We welcome feedback and contributions, see file
10 // CONTRIBUTING.md for details.
11 
12 #ifndef MFEM_FMSDATACOLLECTION
13 #define MFEM_FMSDATACOLLECTION
14 
15 #include "../config/config.hpp"
16 
17 #ifdef MFEM_USE_FMS
18 
19 #include "datacollection.hpp"
20 #include <fms.h>
21 
22 namespace mfem
23 {
24 
25 /** @brief Data collection that uses FMS. */
26 /** FMSDataCollection lets MFEM read/write data using FMS.
27 
28  For more information, see:
29  - FMS project, https://ceed.exascaleproject.org/fms/
30 */
31 
32 /// Data collection with FMS I/O routines
34 {
35 protected:
36  // file name helpers
37 
38  /// Returns file name for the current cycle
39  std::string RootFileName();
40 
41  // holds currently active i/o protocol
42  std::string fms_protocol;
43 
44 public:
45  /// Constructor. The collection name is used when saving the data.
46  /** If @a mesh is NULL, then the mesh can be set later by calling either
47  SetMesh() or Load(). The latter works only in serial. */
48  FMSDataCollection(const std::string& collection_name,
49  Mesh *mesh = NULL);
50 #ifdef MFEM_USE_MPI
51  /// Construct a parallel FMSDataCollection.
52  FMSDataCollection(MPI_Comm comm, const std::string& collection_name,
53  Mesh *mesh = NULL);
54 #endif
55 
56  /// We will delete the mesh and fields if we own them
57  virtual ~FMSDataCollection();
58 
59  /// Set the FMS relay i/o protocol to use
60  /** Supported options: ascii (default), json, yaml, hdf5 */
61  void SetProtocol(const std::string &protocol);
62 
63  /// Save the collection and a FMS blueprint root file
64  virtual void Save();
65 
66  /// Load the collection based blueprint data
67  virtual void Load(int cycle = 0);
68 };
69 
70 } // namespace mfem
71 
72 #endif
73 
74 #endif
virtual void Save()
Save the collection and a FMS blueprint root file.
Data collection that uses FMS.
Mesh * mesh
The (common) mesh for the collected fields.
int cycle
Time cycle; for time-dependent simulations cycle &gt;= 0, otherwise = -1.
virtual void Load(int cycle=0)
Load the collection based blueprint data.
std::string RootFileName()
Returns file name for the current cycle.
void SetProtocol(const std::string &protocol)
Set the FMS relay i/o protocol to use.
FMSDataCollection(const std::string &collection_name, Mesh *mesh=NULL)
Constructor. The collection name is used when saving the data.
virtual ~FMSDataCollection()
We will delete the mesh and fields if we own them.