Make ADIOS tests compatible with 2.9 and 2.10 (#3128)

* Upper bound on ADIOS2 version We know we are not compatible and will do a minor DOLFINx release once ADIOS 2.10 is widely available. * Add forward/backward compatibility in Python for adios2 * Add back set_engine * Apply suggestions from code review --------- Co-authored-by: Jorgen S. Dokken <[email protected]> Co-authored-by: Jørgen Schartum Dokken <[email protected]>
FEniCS · Apr 15, 2024 · 31d4a32 · 31d4a32
1 parent e2f55cf
commit 31d4a32
Showing 1 changed file with 10 additions and 1 deletion.
diff --git a/python/test/unit/io/test_adios2.py b/python/test/unit/io/test_adios2.py
@@ -313,7 +313,16 @@ def test_vtx_reuse_mesh(tempdir, dim, simplex, reuse):
         1 if reuse else 3
     )  # For mesh variables the step count is 1 if reuse else number of writes
 
-    adios_file = adios2.open(str(filename), "r", comm=mesh.comm, engine_type="BP4")
+    # backwards compatibility adios2 < 2.10.0
+    try:
+        adios_file = adios2.open(str(filename), "r", comm=mesh.comm, engine_type="BP4")
+    except AttributeError:
+        # adios2 >= v2.10.0
+        adios = adios2.Adios(comm=mesh.comm)
+        io = adios.declare_io("TestData")
+        io.set_engine("BP4")
+        adios_file = adios2.Stream(io, str(filename), "r", mesh.comm)
+
     for name, var in adios_file.available_variables().items():
         if name in reuse_variables:
             assert int(var["AvailableStepsCount"]) == target_mesh