Added interpolation timing for the cpu version

src/AMOEBA/amoeba_induce.cpp

@@ -940,9 +940,16 @@ void PairAmoeba::umutual1(double **field, double **fieldp)
   double ****gridpost = (double ****) ic_kspace->post_convolution();
 
   // get potential
+  double time0, time1;
+
+  MPI_Barrier(world);
+  time0 = MPI_Wtime();
 
   fphi_uind(gridpost,fdip_phi1,fdip_phi2,fdip_sum_phi);
 
+  time1 = MPI_Wtime();
+  time_fphi_uind += (time1 - time0);
+
   // store fractional reciprocal potentials for OPT method
 
   if (poltyp == OPT) {