diff --git a/bt.for b/spbt/bt.for similarity index 100% rename from bt.for rename to spbt/bt.for diff --git a/compute_errors_bt.for b/spbt/compute_errors_bt.for similarity index 100% rename from compute_errors_bt.for rename to spbt/compute_errors_bt.for diff --git a/compute_errors_sp.for b/spbt/compute_errors_sp.for similarity index 100% rename from compute_errors_sp.for rename to spbt/compute_errors_sp.for diff --git a/compute_rhs_bt.for b/spbt/compute_rhs_bt.for similarity index 100% rename from compute_rhs_bt.for rename to spbt/compute_rhs_bt.for diff --git a/compute_rhs_sp.for b/spbt/compute_rhs_sp.for similarity index 100% rename from compute_rhs_sp.for rename to spbt/compute_rhs_sp.for diff --git a/exact_rhs_bt.for b/spbt/exact_rhs_bt.for similarity index 100% rename from exact_rhs_bt.for rename to spbt/exact_rhs_bt.for diff --git a/exact_rhs_sp.for b/spbt/exact_rhs_sp.for similarity index 100% rename from exact_rhs_sp.for rename to spbt/exact_rhs_sp.for diff --git a/exact_solution_bt.for b/spbt/exact_solution_bt.for similarity index 100% rename from exact_solution_bt.for rename to spbt/exact_solution_bt.for diff --git a/header3d_bt.h b/spbt/header3d_bt.h similarity index 100% rename from header3d_bt.h rename to spbt/header3d_bt.h diff --git a/header_sp.h b/spbt/header_sp.h similarity index 100% rename from header_sp.h rename to spbt/header_sp.h diff --git a/initialize_bt.for b/spbt/initialize_bt.for similarity index 100% rename from initialize_bt.for rename to spbt/initialize_bt.for diff --git a/initialize_sp.for b/spbt/initialize_sp.for similarity index 100% rename from initialize_sp.for rename to spbt/initialize_sp.for diff --git a/npbparams_bt.h b/spbt/npbparams_bt.h similarity index 100% rename from npbparams_bt.h rename to spbt/npbparams_bt.h diff --git a/npbparams_sp.h b/spbt/npbparams_sp.h similarity index 100% rename from npbparams_sp.h rename to spbt/npbparams_sp.h diff --git a/print_result_bt.for b/spbt/print_result_bt.for similarity index 100% rename from print_result_bt.for rename to spbt/print_result_bt.for diff --git a/print_result_sp.for b/spbt/print_result_sp.for similarity index 100% rename from print_result_sp.for rename to spbt/print_result_sp.for diff --git a/set_constants_bt.for b/spbt/set_constants_bt.for similarity index 100% rename from set_constants_bt.for rename to spbt/set_constants_bt.for diff --git a/set_constants_sp.for b/spbt/set_constants_sp.for similarity index 100% rename from set_constants_sp.for rename to spbt/set_constants_sp.for diff --git a/sp.for b/spbt/sp.for similarity index 100% rename from sp.for rename to spbt/sp.for diff --git a/spbt.for b/spbt/spbt.for similarity index 100% rename from spbt.for rename to spbt/spbt.for diff --git a/timers_bt.for b/spbt/timers_bt.for similarity index 100% rename from timers_bt.for rename to spbt/timers_bt.for diff --git a/timers_sp.for b/spbt/timers_sp.for similarity index 100% rename from timers_sp.for rename to spbt/timers_sp.for diff --git a/x_solve_bt.for b/spbt/x_solve_bt.for similarity index 100% rename from x_solve_bt.for rename to spbt/x_solve_bt.for diff --git a/x_solve_sp.for b/spbt/x_solve_sp.for similarity index 100% rename from x_solve_sp.for rename to spbt/x_solve_sp.for diff --git a/y_solve_bt.for b/spbt/y_solve_bt.for similarity index 100% rename from y_solve_bt.for rename to spbt/y_solve_bt.for diff --git a/y_solve_sp.for b/spbt/y_solve_sp.for similarity index 100% rename from y_solve_sp.for rename to spbt/y_solve_sp.for diff --git a/z_solve_bt.for b/spbt/z_solve_bt.for similarity index 100% rename from z_solve_bt.for rename to spbt/z_solve_bt.for diff --git a/z_solve_sp.for b/spbt/z_solve_sp.for similarity index 100% rename from z_solve_sp.for rename to spbt/z_solve_sp.for