diff --git a/src/params/smt_parallel_params.pyg b/src/params/smt_parallel_params.pyg
index ab9cffd7c..89891deb1 100644
--- a/src/params/smt_parallel_params.pyg
+++ b/src/params/smt_parallel_params.pyg
@@ -4,4 +4,6 @@ def_module_params('smt_parallel',
                   params=(
                         ('share_units', BOOL, True, 'share units'),
                         ('share_conflicts', BOOL, True, 'share conflicts'),
+                        ('never_cube', BOOL, False, 'never cube'),
+                        ('only_eager_cube', BOOL, False, 'only eager cube'),
               ))
diff --git a/src/smt/smt_parallel.cpp b/src/smt/smt_parallel.cpp
index f730173ef..9bbf704d2 100644
--- a/src/smt/smt_parallel.cpp
+++ b/src/smt/smt_parallel.cpp
@@ -344,6 +344,9 @@ namespace smt {
 
     // currenly, the code just implements the greedy strategy
     void parallel::batch_manager::return_cubes(ast_translation& l2g, vector<expr_ref_vector>const& C_worker, expr_ref_vector const& A_worker) {
+        if (smt_parallel_params(p.ctx.m_params).never_cube())
+            return; // portfolio only
+
         auto atom_in_cube = [&](expr_ref_vector const& cube, expr* atom) {
             return any_of(cube, [&](expr* e) { return e == atom || (m.is_not(e, e) && e == atom); });
         };