diff --git a/include/util.hpp b/include/util.hpp
index be6734a4..fb64d6b1 100644
--- a/include/util.hpp
+++ b/include/util.hpp
@@ -80,6 +80,11 @@ PetscErrorCode SanityTests(Vec x, PetscReal time);
  */
 int read_vector(const char *filename, double *var, int dim, bool quietmode=false, int skiplines=0, const std::string testheader="");
 
+/**
+ * Write data to file that is compatiable for read_vector
+ */
+int write_vector(const char *filename, double *var, int dim);
+
 
 /* 
  * Compute <neigvals> eigenvalues of A
diff --git a/src/optimproblem.cpp b/src/optimproblem.cpp
index 0d15ba45..8000e71b 100644
--- a/src/optimproblem.cpp
+++ b/src/optimproblem.cpp
@@ -1028,6 +1028,7 @@ void OptimProblem::getStartingPoint(Vec xinit){
       mastereq->getOscillator(ioscil)->getParams(xptr + shift);
       shift += mastereq->getOscillator(ioscil)->getNParams();
     }
+    if (mpirank_world == 0) write_vector("control_initial_guess.dat", xptr, ndesign);
     VecRestoreArray(xinit, &xptr);
   }
 
diff --git a/src/util.cpp b/src/util.cpp
index 1f82877d..19513c5b 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -1,4 +1,6 @@
 #include "util.hpp"
+#include <fstream>
+#include <iomanip>
 
 
 double sigmoid(double width, double x){
@@ -551,6 +553,29 @@ int read_vector(const char *filename, double *var, int dim, bool quietmode, int
   return success;
 }
 
+int write_vector(const char *filename, double *var, int dim) {
+  std::ofstream file(filename, std::ofstream::out);
+  double tmp;
+  int success = 0;
+
+  if (file.is_open()) {
+    printf("Writing file %s.. ", filename);
+    file << std::setprecision(15);
+    for (int d = 0; d < dim; d++)
+      file << var[d] << "\n";
+    
+    file.close();
+    printf("Done!\n");
+    success = 1;
+  }
+  else {
+    printf("ERROR: Can't open file %s\n", filename);
+    exit(1);
+  }
+
+  return success;
+}
+
 
 /* Compute eigenvalues */
 int getEigvals(const Mat A, const int neigvals, std::vector<double>& eigvals, std::vector<Vec>& eigvecs){