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firedrakeproject · Dec 4, 2024 · dec6180 · dec6180
1 parent 0747513
commit dec6180
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/firedrake/preconditioners/bddc.py b/firedrake/preconditioners/bddc.py
@@ -13,7 +13,10 @@
 
 
 class BDDCPC(PCBase):
-    """PC for PETSc PCBDDC"""
+    """PC for PETSc PCBDDC (Balancing Domain Decomposition with Constraints).
+
+    A Mat of type MATIS is required. Currently, this type is only supported by FDMPC.
+    """
 
     _prefix = "bddc_"