Compatibility with precice:develop (#179)

* Rename SolverInterface to Participant and remove old API functions

* Further changes for v3 compatibility

* Update to new API. Tests except for gradient mapping are all working.

* Fix for empty mesh.

* Add missing API functions and small corrections

* Fix building issue

* Reformating test/Participant.cpp

* Fixing test_write_block_scalar_gradient_data_single_float

* Fix gradient tests

* Import getVersionInformation in the correct way

* initialize() does not return anything

* Remove merge conflict tag

* Mistake in resolving merge conflicts

---------

Co-authored-by: Benjamin Rodenberg <benjamin.rodenberg@cit.tum.de>

.github/workflows/build-and-test.yml

@@ -96,7 +96,7 @@ jobs:
         run: |
           git clone --branch develop https://github.com/precice/precice.git precice-core
           mkdir -p precice
-          cp precice-core/src/precice/SolverInterface.hpp precice/SolverInterface.hpp
+          cp precice-core/src/precice/Participant.hpp precice/Participant.hpp
           cp precice-core/src/precice/Tooling.hpp precice/Tooling.hpp
           cp precice-core/src/precice/Tooling.hpp precice/Tooling.cpp
           cd precice-core

cyprecice/Participant.pxd

@@ -0,0 +1,92 @@
+from libcpp        cimport bool
+from libcpp.set    cimport set
+from libcpp.string cimport string
+from libcpp.vector cimport vector
+
+cdef extern from "precice/Participant.hpp" namespace "precice":
+    cdef cppclass Participant:
+        # construction and configuration
+
+        Participant (const string&, const string&, int, int) except +
+
+        Participant (const string&, const string&, int, int, void*) except +
+
+        void configure (const string&)
+
+        # steering methods
+
+        void initialize ()
+
+        void advance (double computedTimestepLength)
+
+        void finalize()
+
+        # status queries
+
+        int getMeshDimensions(const string& meshName) const
+
+        int getDataDimensions(const string& meshName, const string& dataName) const
+
+        bool isCouplingOngoing() const
+
+        bool isTimeWindowComplete() const
+
+        double getMaxTimeStepSize() const
+
+        bool requiresInitialData()
+
+        bool requiresWritingCheckpoint()
+
+        bool requiresReadingCheckpoint()
+
+        # mesh access
+
+        bool hasMesh (const string& meshName) const
+
+        bool requiresMeshConnectivityFor (const string& meshName) const
+
+        int setMeshVertex (const string& meshName, vector[double] position)
+
+        int getMeshVertexSize (const string& meshName) const
+
+        void setMeshVertices (const string& meshName, vector[double] positions, vector[int]& ids)
+
+        void setMeshEdge (const string& meshName, int firstVertexID, int secondVertexID)
+
+        void setMeshEdges (const string& meshName, vector[int] vertices)
+
+        void setMeshTriangle (const string& meshName, int firstVertexID, int secondVertexID, int thirdVertexID)
+
+        void setMeshTriangles (const string& meshName, vector[int] vertices)
+
+        void setMeshQuad (const string& meshName, int firstVertexID, int secondVertexID, int thirdVertexID, int fourthVertexID)
+
+        void setMeshQuads (const string& meshName, vector[int] vertices)
+
+        void setMeshTetrahedron (const string& meshName, int firstVertexID, int secondVertexID, int thirdVertexID, int fourthVertexID)
+
+        void setMeshTetrahedra (const string& meshName, vector[int] vertices)
+
+        # data access
+
+        bool hasData (const string& dataName, const string& meshName) const
+
+        void writeData (const string& meshName, const string& dataName, vector[int] vertices, vector[double] values)
+
+        void readData (const string& meshName, const string& dataName, vector[int] vertices, const double relativeReadTime, vector[double]& values) const
+
+        # direct access
+
+        void setMeshAccessRegion (const string& meshName, vector[double] boundingBox) const
+
+        void getMeshVerticesAndIDs (const string& meshName, vector[int]& ids, vector[double]& coordinates) const
+
+        # Gradient related API
+
+        bool requiresGradientDataFor(const string& meshName, const string& dataName) const
+
+        void writeGradientData(const string& meshName, const string& dataName, vector[int] vertices, vector[double] gradientValues)
+
+
+cdef extern from "precice/Tooling.hpp" namespace "precice":
+    string getVersionInformation()

cyprecice/cyprecice.pxd

@@ -5,10 +5,10 @@ The python module precice offers python language bindings to the C++ coupling li
 
 cimport numpy as np
 cimport cython
-cimport SolverInterface
+cimport Participant as CppParticipant
 
 from cpython.version cimport PY_MAJOR_VERSION  # important for determining python version in order to properly normalize string input. See http://docs.cython.org/en/latest/src/tutorial/strings.html#general-notes-about-c-strings and https://github.com/precice/precice/issues/68 .
 
 @cython.embedsignature(True)
-cdef class Interface:
-    cdef SolverInterface.SolverInterface *thisptr # hold a C++ instance being wrapped
+cdef class Participant:
+    cdef CppParticipant.Participant *thisptr # hold a C++ instance being wrapped