12 May 2025 8:43:36.087 PM md_openmp(): Fortran77/OpenMP version A molecular dynamics program. NP, the number of particles in the simulation is 1000 STEP_NUM, the number of time steps, is 400 DT, the size of each time step, is 0.100000E-03 The number of processors = 8 The number of threads = 1 Initializing positions, velocities, and accelerations. Computing initial forces and energies. At each step, we report the potential and kinetic energies. The sum of these energies should be a constant. As an accuracy check, we also print the relative error in the total energy. Step Potential Kinetic (P+K-E0)/E0 Energy P Energy K Relative Energy Error 0 498130. 0.00000 0.00000 40 498129. 0.518224E-01 0.173769E-10 80 498129. 0.215466 0.160946E-10 120 498129. 0.491077 0.125144E-10 160 498129. 0.878768 0.549125E-11 200 498128. 1.37870 -0.616198E-11 240 498128. 1.99108 -0.236153E-10 280 498127. 2.71617 -0.480384E-10 320 498126. 3.55426 -0.806487E-10 360 498125. 4.50571 -0.122561E-09 400 498124. 5.57090 -0.174962E-09 Elapsed time for main computation: 30.5748 seconds md_openmp(): Normal end of execution. 12 May 2025 8:44:06.740 PM 12 May 2025 8:44:06.741 PM md_openmp(): Fortran77/OpenMP version A molecular dynamics program. NP, the number of particles in the simulation is 1000 STEP_NUM, the number of time steps, is 400 DT, the size of each time step, is 0.100000E-03 The number of processors = 8 The number of threads = 2 Initializing positions, velocities, and accelerations. Computing initial forces and energies. At each step, we report the potential and kinetic energies. The sum of these energies should be a constant. As an accuracy check, we also print the relative error in the total energy. Step Potential Kinetic (P+K-E0)/E0 Energy P Energy K Relative Energy Error 0 498130. 0.00000 0.00000 40 498129. 0.518224E-01 0.173797E-10 80 498129. 0.215466 0.160935E-10 120 498129. 0.491077 0.125183E-10 160 498129. 0.878768 0.548763E-11 200 498128. 1.37870 -0.616105E-11 240 498128. 1.99108 -0.236095E-10 280 498127. 2.71617 -0.480361E-10 320 498126. 3.55426 -0.806413E-10 360 498125. 4.50571 -0.122555E-09 400 498124. 5.57090 -0.174957E-09 Elapsed time for main computation: 16.0710 seconds md_openmp(): Normal end of execution. 12 May 2025 8:44:22.852 PM 12 May 2025 8:44:22.854 PM md_openmp(): Fortran77/OpenMP version A molecular dynamics program. NP, the number of particles in the simulation is 1000 STEP_NUM, the number of time steps, is 400 DT, the size of each time step, is 0.100000E-03 The number of processors = 8 The number of threads = 4 Initializing positions, velocities, and accelerations. Computing initial forces and energies. At each step, we report the potential and kinetic energies. The sum of these energies should be a constant. As an accuracy check, we also print the relative error in the total energy. Step Potential Kinetic (P+K-E0)/E0 Energy P Energy K Relative Energy Error 0 498130. 0.00000 0.00000 40 498129. 0.518224E-01 0.173783E-10 80 498129. 0.215466 0.160932E-10 120 498129. 0.491077 0.125197E-10 160 498129. 0.878768 0.549066E-11 200 498128. 1.37870 -0.616140E-11 240 498128. 1.99108 -0.236083E-10 280 498127. 2.71617 -0.480343E-10 320 498126. 3.55426 -0.806422E-10 360 498125. 4.50571 -0.122555E-09 400 498124. 5.57090 -0.174955E-09 Elapsed time for main computation: 8.21439 seconds md_openmp(): Normal end of execution. 12 May 2025 8:44:31.088 PM 12 May 2025 8:44:31.090 PM md_openmp(): Fortran77/OpenMP version A molecular dynamics program. NP, the number of particles in the simulation is 1000 STEP_NUM, the number of time steps, is 400 DT, the size of each time step, is 0.100000E-03 The number of processors = 8 The number of threads = 8 Initializing positions, velocities, and accelerations. Computing initial forces and energies. At each step, we report the potential and kinetic energies. The sum of these energies should be a constant. As an accuracy check, we also print the relative error in the total energy. Step Potential Kinetic (P+K-E0)/E0 Energy P Energy K Relative Energy Error 0 498130. 0.00000 0.00000 40 498129. 0.518224E-01 0.173778E-10 80 498129. 0.215466 0.160921E-10 120 498129. 0.491077 0.125192E-10 160 498129. 0.878768 0.549090E-11 200 498128. 1.37870 -0.616186E-11 240 498128. 1.99108 -0.236093E-10 280 498127. 2.71617 -0.480348E-10 320 498126. 3.55426 -0.806419E-10 360 498125. 4.50571 -0.122555E-09 400 498124. 5.57090 -0.174956E-09 Elapsed time for main computation: 7.21154 seconds md_openmp(): Normal end of execution. 12 May 2025 8:44:38.318 PM