Actually I am not sure that I can understand what is thread. But I can paste QMMM file here:<br><br>title                    = my_mdp_file<br>cpp                      = /usr/bin/cpp -traditional<br>include                  = <br>
define                   = <br><br><br>integrator               = md<br>tinit                    = 0<br>dt                       = 0.0005<br>nsteps                   = 2000<br>init_step                = 0<br>comm-mode                = Linear<br>
nstcomm                  = 1<br>comm_grps                = system<br><br>emtol                    = 100.0<br>emstep                   = 0.0005<br><br>nstxout                  = 100<br>nstvout                  = 100<br>nstfout                  = 100<br>
; Checkpointing helps you continue after crashes<br>nstcheckpoint            = 100<br>nstlog                   = 10<br>nstenergy                = 10<br>nstxtcout                = 10<br>;xtc-precision            = 1000<br>
;xtc_grps                 = DNA<br><br>nstlist                  = 5<br>ns_type                  = grid<br>pbc                      = xyz<br>rlist                    = 1.4<br>domain-decomposition     = no<br><br><br>coulombtype    = PME        ; Particle Mesh Ewald for long-range electrostatics<br>
pme_order    = 4        ; cubic interpolation<br>;fourierspacing    = 0.16        ; grid spacing for FFT<br><br><br>;coulombtype              = Cut-off<br>;rcoulomb-switch          = 0<br>rcoulomb                 = 1.4<br>
epsilon_r                = 1<br>epsilon_rf               = 1<br><br>vdwtype                  = Cut-Off<br>rvdw-switch              = 0.<br>rvdw                     = 1.4<br>DispCorr                 = No<br><br>fourierspacing           = 0.12<br>
fourier_nx               = 0<br>fourier_ny               = 0<br>fourier_nz               = 0<br>;pme_order                = 4<br>ewald_rtol               = 1e-05<br>ewald_geometry           = 3d<br>epsilon_surface          = 0<br>
optimize_fft             = no<br><br>tcoupl                   = V-rescale<br>tc-grps                  = LIG SOL<br>tau-t                    = 0.1 0.1<br>ref-t                    = 309 309<br>Pcoupl                   = Berendsen<br>
Pcoupltype               = Isotropic<br>tau-p                    = 1.0<br>compressibility          = 4.5e-5<br>ref-p                    = 1.0<br><br>QMMM                     = yes<br>QMMM-grps                = QMatoms<br>
QMmethod                 = DFT<br>QMMMscheme               = ONIOM<br>QMbasis                  = sto-3g<br>QMcharge                 = 0 <br>QMmult                   = 1<br><br>gen_vel                  = no<br>gen_temp                 = 00<br>
gen_seed                 = 18111976<br><br>constraints              = all-bonds<br>constraint_algorithm     = LINCS<br>unconstrained_start      = no<br>Shake-SOR                = no<br>shake_tol                = 0.0001<br>
lincs_order              = 4<br>lincs-iter               = 1<br>lincs_warnangle          = 30<br>morse                    = no<br><br><div class="gmail_quote">2010/12/7 Gerrit Groenhof <span dir="ltr">&lt;<a href="mailto:ggroenh@gwdg.de">ggroenh@gwdg.de</a>&gt;</span><br>
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<br>
Dera gromacs users,<br>
<br>
I am trying to do QMMM in the latest gromacs version :gromacs-4.5-beta2.<br>
When I run DFT I got an error:<br>
<br>
number of CPUs for gaussian = 1<br>
memory for gaussian = 50000000<br>
accuracy in l510 = 8<br>
NOT using cp-mcscf in l1003<br>
Level of SA at start = 0<br>
Segmentation fault<br>
<br>
Are you trying to use more than one thread?<br>
<br>
Gerrit<br>
<br>
Please could you advice me on this?<br>
<br>
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6. QMMM, Segmentation fault (Olga Ivchenko)<br>
<br>
<br>
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<br>
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