WIP: Add OpenPMD support

CMakeLists.txt

@@ -31,11 +31,12 @@ include(CTest)
 # Compile time constants
 
 # Compile Options
-option(PARTHENON_SINGLE_PRECISION "Run in single precision" OFF)
+option(PARTHENON_SINGLE_PRENSION "Run in single precision" OFF)
 option(PARTHENON_DISABLE_MPI "MPI is enabled by default if found, set this to True to disable MPI" OFF)
 option(PARTHENON_ENABLE_HOST_COMM_BUFFERS "CUDA/HIP Only: Allocate communication buffers on host (may be slower)" OFF)
 option(PARTHENON_DISABLE_HDF5 "HDF5 is enabled by default if found, set this to True to disable HDF5" OFF)
 option(PARTHENON_DISABLE_HDF5_COMPRESSION "HDF5 compression is enabled by default, set this to True to disable compression in HDF5 output/restart files" OFF)
+option(PARTHENON_ENABLE_OPENPMD "OpenPMD is enabled by default if found, set this to True to disable OpenPMD" ON)
 option(PARTHENON_DISABLE_SPARSE "Sparse capability is enabled by default, set this to True to compile-time disable all sparse capability" OFF)
 option(PARTHENON_ENABLE_ASCENT "Enable Ascent for in situ visualization and analysis" OFF)
 option(PARTHENON_LINT_DEFAULT "Linting is turned off by default, use the \"lint\" target or set \
@@ -187,6 +188,25 @@ if (NOT PARTHENON_DISABLE_HDF5)
   install(TARGETS HDF5_C EXPORT parthenonTargets)
 endif()
 
+if (PARTHENON_ENABLE_OPENPMD)
+#TODO(pgrete) add logic for serial/parallel
+#TODO(pgrete) add logic for internal/external build
+  include(FetchContent)
+  set(CMAKE_POLICY_DEFAULT_CMP0077 NEW)
+  set(openPMD_BUILD_CLI_TOOLS OFF)
+  set(openPMD_BUILD_EXAMPLES OFF)
+  set(openPMD_BUILD_TESTING OFF)
+  set(openPMD_BUILD_SHARED_LIBS OFF)  # precedence over BUILD_SHARED_LIBS if needed
+  set(openPMD_INSTALL OFF)            # or instead use:
+  # set(openPMD_INSTALL ${BUILD_SHARED_LIBS})  # only install if used as a shared library
+  set(openPMD_USE_PYTHON OFF)
+  FetchContent_Declare(openPMD
+    GIT_REPOSITORY "https://github.com/openPMD/openPMD-api.git"
+    GIT_TAG        "0.15.2")
+  FetchContent_MakeAvailable(openPMD)
+  install(TARGETS openPMD EXPORT parthenonTargets)
+endif()
+
 # Kokkos recommendatation resulting in not using default GNU extensions
 set(CMAKE_CXX_EXTENSIONS OFF)
 

src/CMakeLists.txt

@@ -180,6 +180,7 @@ add_library(parthenon
   outputs/history.cpp
   outputs/io_wrapper.cpp
   outputs/io_wrapper.hpp
+  outputs/openpmd.cpp
   outputs/output_utils.cpp
   outputs/output_utils.hpp
   outputs/outputs.cpp
@@ -195,6 +196,8 @@ add_library(parthenon
   outputs/restart.hpp
   outputs/restart_hdf5.cpp
   outputs/restart_hdf5.hpp
+  outputs/restart_opmd.cpp
+  outputs/restart_opmd.hpp
   outputs/vtk.cpp
 
   parthenon/driver.hpp
@@ -310,6 +313,10 @@ if (ENABLE_HDF5)
   target_link_libraries(parthenon PUBLIC HDF5_C)
 endif()
 
+if (PARTHENON_ENABLE_OPENPMD)
+  target_link_libraries(parthenon PUBLIC openPMD::openPMD)
+endif()
+
 # For Cuda with NVCC (<11.2) and C++17 Kokkos currently does not work/compile with
 # relaxed-constexpr, see https://github.com/kokkos/kokkos/issues/3496
 # However, Parthenon heavily relies on it and there is no harm in compiling Kokkos

src/config.hpp.in

@@ -45,6 +45,8 @@
 // defne ENABLE_HDF5 or not at all
 #cmakedefine ENABLE_HDF5
 
+#cmakedefine PARTHENON_ENABLE_OPENPMD
+
 // define PARTHENON_DISABLE_HDF5_COMPRESSION or not at all
 #cmakedefine PARTHENON_DISABLE_HDF5_COMPRESSION