diff --git a/src/run.cpp b/src/run.cpp
index eb263f8..17c399f 100644
--- a/src/run.cpp
+++ b/src/run.cpp
@@ -15,26 +15,6 @@
 
 #include <Eigen/Eigen>
 
-using TugType = double;
-
-using RowMajorMat =
-    Eigen::Matrix<TugType, Eigen::Dynamic, Eigen::Dynamic, Eigen::RowMajor>;
-
-static inline std::vector<TugType>
-eigenMatrix_to_vector(const Eigen::MatrixX<TugType> &mat) {
-  if (mat.IsRowMajor) {
-    return std::vector<TugType>(mat.data(), mat.data() + mat.size());
-  } else {
-    std::vector<TugType> out_vec(mat.size());
-    for (int i = 0; i < mat.rows(); i++) {
-      for (int j = 0; j < mat.cols(); j++) {
-        out_vec[i * mat.cols() + j] = mat(i, j);
-      }
-    }
-    return out_vec;
-  }
-}
-
 double run_bench(const bench_input &input, const std::string &output_file) {
   std::vector<std::vector<double>> raw_data =
       read_conc_csv<double>(input.csv_file_init, input.ncols, input.nrows);
@@ -89,7 +69,7 @@ double run_bench(const bench_input &input, const std::string &output_file) {
       int ompNumThreads = std::stoi(out, NULL);
       sim.setNumberThreads(ompNumThreads);
     }
-    
+
     sim.setTimestep(input.timestep);
     sim.setIterations(input.iterations);
 
diff --git a/src/run.hpp b/src/run.hpp
index 1a674aa..d6b6425 100644
--- a/src/run.hpp
+++ b/src/run.hpp
@@ -1,8 +1,29 @@
 #ifndef _RUN_HPP
 #define _RUN_HPP
 
+#include <Eigen/Eigen>
 #include <bench_defs.hpp>
 
+using TugType = double;
+
+using RowMajorMat =
+    Eigen::Matrix<TugType, Eigen::Dynamic, Eigen::Dynamic, Eigen::RowMajor>;
+
 double run_bench(const bench_input &input, const std::string &output_file = "");
 
+static inline std::vector<TugType>
+eigenMatrix_to_vector(const Eigen::MatrixX<TugType> &mat) {
+  if (mat.IsRowMajor) {
+    return std::vector<TugType>(mat.data(), mat.data() + mat.size());
+  } else {
+    std::vector<TugType> out_vec(mat.size());
+    for (int i = 0; i < mat.rows(); i++) {
+      for (int j = 0; j < mat.cols(); j++) {
+        out_vec[i * mat.cols() + j] = mat(i, j);
+      }
+    }
+    return out_vec;
+  }
+}
+
 #endif // _RUN_HPP
\ No newline at end of file