Dear Vitaly, Thank you so much for your suggestion!! I've run the simultion using one core as you suggested, and I can see two outputs on step 0 and step 100 now ( shown on the bottom), but it still took a while to only generate these two outputs. Maybe it is indeed the problem of scaling as mentioned by Justin?
There are: 34001 Atoms Charge group distribution at step 0: 1953 1973 2103 2032 2044 2072 2063 1967 Grid: 3 x 7 x 18 cells Constraining the starting coordinates (step 0) Constraining the coordinates at t0-dt (step 0) RMS relative constraint deviation after constraining: 1.99e-05 Initial temperature: 300.057 K Started mdrun on node 0 Fri Aug 24 10:37:20 2012 Step Time Lambda 0 0.00000 0.00000 Energies (kJ/mol) Angle Proper Dih. Ryckaert-Bell. Improper Dih. LJ-14 6.66008e+03 3.06081e+03 7.94034e+02 2.55031e+02 8.61710e+02 Coulomb-14 LJ (SR) Disper. corr. Coulomb (SR) Coul. recip. 2.40538e+03 5.11091e+04 -3.00143e+03 -4.49637e+05 -8.11103e+04 Position Rest. Potential Kinetic En. Total Energy Conserved En. 5.53187e+01 -4.68547e+05 8.57672e+04 -3.82780e+05 -3.82780e+05 Temperature Pres. DC (bar) Pressure (bar) Constr. rmsd 3.00450e+02 -9.73436e+01 -2.97627e+03 3.74608e-05 DD step 4 load imb.: force 6.0% DD step 99 load imb.: force 6.1% Step Time Lambda 100 0.20000 0.00000 Energies (kJ/mol) Angle Proper Dih. Ryckaert-Bell. Improper Dih. LJ-14 1.10274e+04 2.82478e+03 1.23525e+03 2.24466e+02 1.54991e+03 Coulomb-14 LJ (SR) Disper. corr. Coulomb (SR) Coul. recip. 4.67051e+03 6.34091e+04 -3.00143e+03 -4.31792e+05 -8.19081e+04 Position Rest. Potential Kinetic En. Total Energy Conserved En. 1.44619e+04 -4.17298e+05 7.13854e+04 -3.45913e+05 -3.82303e+05 Temperature Pres. DC (bar) Pressure (bar) Constr. rmsd 2.50069e+02 -9.73436e+01 -3.79866e+02 3.45085e-06 -- View this message in context: http://gromacs.5086.n6.nabble.com/equilibrium-stage-runs-for-too-long-tp5000461p5000483.html Sent from the GROMACS Users Forum mailing list archive at Nabble.com. -- gmx-users mailing list gmx-users@gromacs.org http://lists.gromacs.org/mailman/listinfo/gmx-users * Only plain text messages are allowed! * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/Search before posting! * Please don't post (un)subscribe requests to the list. Use the www interface or send it to gmx-users-requ...@gromacs.org. * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists