diff --git a/checks/check_2d.cpp b/checks/check_2d.cpp
index 7ca992d3f2d476eb2ccb00b824f4c5ce1cd5e2ac..7b5121dd69d86e025b7e5f501786e390ed86a9d2 100644
--- a/checks/check_2d.cpp
+++ b/checks/check_2d.cpp
@@ -252,7 +252,7 @@ auto run(const int& tree_height, const int& group_size, const std::size_t order,
     typename FMM_OPERATOR_TYPE::far_field_type far_field(interpolator);
     //
     auto memory = interpolator.memory_usage();
-    std::cout << "memory " << memory << std::endl;
+    std::cout << "memory " << memory << " b" << std::endl;
     //
     near_matrix_kernel_type mk_near{};
     const bool mutual_near = false;
@@ -337,8 +337,8 @@ auto run_general(const int& tree_height, const int& group_size, const std::size_
     // using far_matrix_kernel_type =
     // scalfmm::matrix_kernels::others::one_over_r2; using
     // near_matrix_kernel_type = scalfmm::matrix_kernels::others::one_over_r2;
-    // using options = scalfmm::options::uniform_<scalfmm::options::fft_>;
-    using options = scalfmm::options::chebyshev_<scalfmm::options::low_rank_>;
+    using options = scalfmm::options::uniform_<scalfmm::options::fft_>;
+    // using options = scalfmm::options::chebyshev_<scalfmm::options::low_rank_>;
     // using options = scalfmm::options::chebyshev_<scalfmm::options::dense_>;
     if(kernel == 0)
     {   // one_over_r