Hello,

I am running a bilayer simulation with Gromacs4.6.1.
I have just bought the GPU card and I am doing some tests with a DPPC bilayer simulation.

But I am always getting the same error:
-------------------------------------------------------
Program mdrun, VERSION 4.6.1
Source code file: /home/cintia/Downloads/gromacs-4.6.1/src/mdlib/nbnxn_cuda/nbnxn_cuda.cu, line: 565

Fatal error:
cudaStreamSynchronize failed in cu_blockwait_nb: unspecified launch failure

For more information and tips for troubleshooting, please check the GROMACS
website at http://www.gromacs.org/Documentation/Errors
-------------------------------------------------------

I saw that someone posted a similar error here before, but I was not able to understand the solution for it.
Can anyone help?

Below is the .log file with the details of the hardware and the system.

Thank you in advance,
Cíntia


Log file opened on Mon May  6 21:19:32 2013
Host: titan2  pid: 12346  nodeid: 0  nnodes:  1
Gromacs version:    VERSION 4.6.1
Precision:          single
Memory model:       64 bit
MPI library:        thread_mpi
OpenMP support:     enabled
GPU support:        enabled
invsqrt routine:    gmx_software_invsqrt(x)
CPU acceleration:   SSE4.1
FFT library:        fftw-3.3.2-sse2
Large file support: enabled
RDTSCP usage:       enabled
Built on:           Sex Mai  3 16:52:44 BRT 2013
Built by:           root@titan2 [CMAKE]
Build OS/arch:      Linux 3.8.0-19-generic x86_64
Build CPU vendor:   GenuineIntel
Build CPU brand:    Intel(R) Core(TM) i7 CPU         870  @ 2.93GHz
Build CPU family:   6   Model: 30   Stepping: 5
Build CPU features: apic clfsh cmov cx8 cx16 htt lahf_lm mmx msr nonstop_tsc pdcm popcnt pse rdtscp sse2 sse3 sse4.1 sse4.2 ssse3
C compiler:         /usr/bin/cc GNU cc (Ubuntu/Linaro 4.7.3-1ubuntu1) 4.7.3
C compiler flags: -msse4.1 -Wextra -Wno-missing-field-initializers -Wno-sign-compare -Wall -Wno-unused -Wunused-value -fomit-frame-pointer -funroll-all-loops -fexcess-precision=fast -O3 -DNDEBUG C++ compiler: /usr/bin/c++ GNU c++ (Ubuntu/Linaro 4.7.3-1ubuntu1) 4.7.3 C++ compiler flags: -msse4.1 -Wextra -Wno-missing-field-initializers -Wno-sign-compare -Wall -Wno-unused -Wunused-value -fomit-frame-pointer -funroll-all-loops -fexcess-precision=fast -O3 -DNDEBUG CUDA compiler: nvcc: NVIDIA (R) Cuda compiler driver;Copyright (c) 2005-2012 NVIDIA Corporation;Built on Fri_Sep_21_17:28:58_PDT_2012;Cuda compilation tools, release 5.0, V0.2.1221
CUDA driver:        5.50
CUDA runtime:       5.0


                         :-)  G  R  O  M  A  C  S  (-:

                God Rules Over Mankind, Animals, Cosmos and Such

                            :-)  VERSION 4.6.1  (-:

        Contributions from Mark Abraham, Emile Apol, Rossen Apostolov,
           Herman J.C. Berendsen, Aldert van Buuren, Pär Bjelkmar,
     Rudi van Drunen, Anton Feenstra, Gerrit Groenhof, Christoph Junghans,
        Peter Kasson, Carsten Kutzner, Per Larsson, Pieter Meulenhoff,
           Teemu Murtola, Szilard Pall, Sander Pronk, Roland Schulz,
                Michael Shirts, Alfons Sijbers, Peter Tieleman,

               Berk Hess, David van der Spoel, and Erik Lindahl.

       Copyright (c) 1991-2000, University of Groningen, The Netherlands.
         Copyright (c) 2001-2012,2013, The GROMACS development team at
        Uppsala University & The Royal Institute of Technology, Sweden.
            check out http://www.gromacs.org for more information.

         This program is free software; you can redistribute it and/or
       modify it under the terms of the GNU Lesser General Public License
        as published by the Free Software Foundation; either version 2.1
             of the License, or (at your option) any later version.

                                :-)  mdrun  (-:


++++ PLEASE READ AND CITE THE FOLLOWING REFERENCE ++++
B. Hess and C. Kutzner and D. van der Spoel and E. Lindahl
GROMACS 4: Algorithms for highly efficient, load-balanced, and scalable
molecular simulation
J. Chem. Theory Comput. 4 (2008) pp. 435-447
-------- -------- --- Thank You --- -------- --------


++++ PLEASE READ AND CITE THE FOLLOWING REFERENCE ++++
D. van der Spoel, E. Lindahl, B. Hess, G. Groenhof, A. E. Mark and H. J. C.
Berendsen
GROMACS: Fast, Flexible and Free
J. Comp. Chem. 26 (2005) pp. 1701-1719
-------- -------- --- Thank You --- -------- --------


++++ PLEASE READ AND CITE THE FOLLOWING REFERENCE ++++
E. Lindahl and B. Hess and D. van der Spoel
GROMACS 3.0: A package for molecular simulation and trajectory analysis
J. Mol. Mod. 7 (2001) pp. 306-317
-------- -------- --- Thank You --- -------- --------


++++ PLEASE READ AND CITE THE FOLLOWING REFERENCE ++++
H. J. C. Berendsen, D. van der Spoel and R. van Drunen
GROMACS: A message-passing parallel molecular dynamics implementation
Comp. Phys. Comm. 91 (1995) pp. 43-56
-------- -------- --- Thank You --- -------- --------

Input Parameters:
   integrator           = md
   nsteps               = 50000000
   init-step            = 0
   cutoff-scheme        = Verlet
   ns_type              = Grid
   nstlist              = 40
   ndelta               = 2
   nstcomm              = 100
   comm-mode            = Linear
   nstlog               = 2000
   nstxout              = 2000
   nstvout              = 2000
   nstfout              = 0
   nstcalcenergy        = 40
   nstenergy            = 2000
   nstxtcout            = 2000
   init-t               = 0
   delta-t              = 0.002
   xtcprec              = 2000
   fourierspacing       = 0.12
   nkx                  = 96
   nky                  = 96
   nkz                  = 120
   pme-order            = 4
   ewald-rtol           = 1e-05
   ewald-geometry       = 0
   epsilon-surface      = 0
   optimize-fft         = FALSE
   ePBC                 = xyz
   bPeriodicMols        = FALSE
   bContinuation        = FALSE
   bShakeSOR            = FALSE
   etc                  = V-rescale
   bPrintNHChains       = FALSE
   nsttcouple           = 40
   epc                  = Berendsen
   epctype              = Semiisotropic
   nstpcouple           = 40
   tau-p                = 0.5
   ref-p (3x3):
      ref-p[    0]={ 1.00000e+00,  0.00000e+00,  0.00000e+00}
      ref-p[    1]={ 0.00000e+00,  1.00000e+00,  0.00000e+00}
      ref-p[    2]={ 0.00000e+00,  0.00000e+00,  1.00000e+00}
   compress (3x3):
      compress[    0]={ 4.51000e-05,  0.00000e+00,  0.00000e+00}
      compress[    1]={ 0.00000e+00,  4.51000e-05,  0.00000e+00}
      compress[    2]={ 0.00000e+00,  0.00000e+00,  4.51000e-05}
   refcoord-scaling     = No
   posres-com (3):
      posres-com[0]= 0.00000e+00
      posres-com[1]= 0.00000e+00
      posres-com[2]= 0.00000e+00
   posres-comB (3):
      posres-comB[0]= 0.00000e+00
      posres-comB[1]= 0.00000e+00
      posres-comB[2]= 0.00000e+00
   verlet-buffer-drift  = 0.005
   rlist                = 1.385
   rlistlong            = 1.385
   nstcalclr            = 40
   rtpi                 = 0.05
   coulombtype          = PME
   coulomb-modifier     = Potential-shift
   rcoulomb-switch      = 0
   rcoulomb             = 1.3
   vdwtype              = Cut-off
   vdw-modifier         = Potential-shift
   rvdw-switch          = 0
   rvdw                 = 1.3
   epsilon-r            = 1
   epsilon-rf           = 66
   tabext               = 1
   implicit-solvent     = No
   gb-algorithm         = Still
   gb-epsilon-solvent   = 80
   nstgbradii           = 1
   rgbradii             = 1
   gb-saltconc          = 0
   gb-obc-alpha         = 1
   gb-obc-beta          = 0.8
   gb-obc-gamma         = 4.85
   gb-dielectric-offset = 0.009
   sa-algorithm         = Ace-approximation
   sa-surface-tension   = 2.05016
   DispCorr             = No
   bSimTemp             = FALSE
   free-energy          = no
   nwall                = 0
   wall-type            = 9-3
   wall-atomtype[0]     = -1
   wall-atomtype[1]     = -1
   wall-density[0]      = 0
   wall-density[1]      = 0
   wall-ewald-zfac      = 3
   pull                 = no
   rotation             = FALSE
   disre                = No
   disre-weighting      = Conservative
   disre-mixed          = FALSE
   dr-fc                = 1000
   dr-tau               = 0
   nstdisreout          = 100
   orires-fc            = 0
   orires-tau           = 0
   nstorireout          = 100
   dihre-fc             = 0
   em-stepsize          = 0.01
   em-tol               = 10
   niter                = 20
   fc-stepsize          = 0
   nstcgsteep           = 1000
   nbfgscorr            = 10
   ConstAlg             = Lincs
   shake-tol            = 0.0001
   lincs-order          = 4
   lincs-warnangle      = 30
   lincs-iter           = 1
   bd-fric              = 0
   ld-seed              = 1993
   cos-accel            = 0
   deform (3x3):
      deform[    0]={ 0.00000e+00,  0.00000e+00,  0.00000e+00}
      deform[    1]={ 0.00000e+00,  0.00000e+00,  0.00000e+00}
      deform[    2]={ 0.00000e+00,  0.00000e+00,  0.00000e+00}
   adress               = FALSE
   userint1             = 0
   userint2             = 0
   userint3             = 0
   userint4             = 0
   userreal1            = 0
   userreal2            = 0
   userreal3            = 0
   userreal4            = 0
grpopts:
   nrdf:       51709      169941
   ref-t:         296         296
   tau-t:         0.4         0.4
anneal:          No          No
ann-npoints:           0           0
   acc:               0           0           0
   nfreeze:           N           N           N
   energygrp-flags[  0]: 0 0
   energygrp-flags[  1]: 0 0
   efield-x:
      n = 0
   efield-xt:
      n = 0
   efield-y:
      n = 0
   efield-yt:
      n = 0
   efield-z:
      n = 0
   efield-zt:
      n = 0
   bQMMM                = FALSE
   QMconstraints        = 0
   QMMMscheme           = 0
   scalefactor          = 1
qm-opts:
   ngQM                 = 0
Using 1 MPI thread
Using 8 OpenMP threads

Detecting CPU-specific acceleration.
Present hardware specification:
Vendor: GenuineIntel
Brand:  Intel(R) Core(TM) i7 CPU         870  @ 2.93GHz
Family:  6  Model: 30  Stepping:  5
Features: apic clfsh cmov cx8 cx16 htt lahf_lm mmx msr nonstop_tsc pdcm popcnt pse rdtscp sse2 sse3 sse4.1 sse4.2 ssse3
Acceleration most likely to fit this hardware: SSE4.1
Acceleration selected at GROMACS compile time: SSE4.1


1 GPU detected:
#0: NVIDIA GeForce GTX 660 Ti, compute cap.: 3.0, ECC: no, stat: compatible

1 GPU auto-selected for this run: #0

Will do PME sum in reciprocal space.

++++ PLEASE READ AND CITE THE FOLLOWING REFERENCE ++++
U. Essmann, L. Perera, M. L. Berkowitz, T. Darden, H. Lee and L. G. Pedersen
A smooth particle mesh Ewald method
J. Chem. Phys. 103 (1995) pp. 8577-8592
-------- -------- --- Thank You --- -------- --------

Will do ordinary reciprocal space Ewald sum.
Using a Gaussian width (1/beta) of 0.416211 nm for Ewald
Cut-off's:   NS: 1.385   Coulomb: 1.3   LJ: 1.3
System total charge: -0.000
Generated table with 1192 data points for Ewald.
Tabscale = 500 points/nm
Generated table with 1192 data points for LJ6.
Tabscale = 500 points/nm
Generated table with 1192 data points for LJ12.
Tabscale = 500 points/nm
Generated table with 1192 data points for 1-4 COUL.
Tabscale = 500 points/nm
Generated table with 1192 data points for 1-4 LJ6.
Tabscale = 500 points/nm
Generated table with 1192 data points for 1-4 LJ12.
Tabscale = 500 points/nm

Using CUDA 8x8 non-bonded kernels


NOTE: With GPUs, reporting energy group contributions is not supported

Potential shift: LJ r^-12: 0.043 r^-6 0.207, Ewald 1.000e-05
Initialized non-bonded Ewald correction tables, spacing: 8.47e-04 size: 1536

Removing pbc first time
Pinning threads with a logical core stride of 1

Initializing LINear Constraint Solver

++++ PLEASE READ AND CITE THE FOLLOWING REFERENCE ++++
B. Hess and H. Bekker and H. J. C. Berendsen and J. G. E. M. Fraaije
LINCS: A Linear Constraint Solver for molecular simulations
J. Comp. Chem. 18 (1997) pp. 1463-1472
-------- -------- --- Thank You --- -------- --------

The number of constraints is 25088

++++ PLEASE READ AND CITE THE FOLLOWING REFERENCE ++++
S. Miyamoto and P. A. Kollman
SETTLE: An Analytical Version of the SHAKE and RATTLE Algorithms for Rigid
Water Models
J. Comp. Chem. 13 (1992) pp. 952-962
-------- -------- --- Thank You --- -------- --------

Center of mass motion removal mode is Linear
We have the following groups for center of mass motion removal:
  0:  Other
  1:  SOL

++++ PLEASE READ AND CITE THE FOLLOWING REFERENCE ++++
G. Bussi, D. Donadio and M. Parrinello
Canonical sampling through velocity rescaling
J. Chem. Phys. 126 (2007) pp. 014101
-------- -------- --- Thank You --- -------- --------

There are: 110572 Atoms

Constraining the starting coordinates (step 0)

Constraining the coordinates at t0-dt (step 0)
RMS relative constraint deviation after constraining: 9.68e-06
Initial temperature: 297.425 K

Started mdrun on node 0 Mon May  6 21:19:33 2013

           Step           Time         Lambda
              0        0.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    4.06051e+04    3.40234e+04    1.67362e+03   -1.49709e+04 1.26501e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.84039e+04   -1.74059e+06    9.01597e+03   -1.49534e+06 2.74174e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22117e+06    2.97544e+02   -1.51178e+01    5.64838e-06

step 80: timed with pme grid 96 96 120, coulomb cutoff 1.300: 2932.9 M-cycles step 160: timed with pme grid 80 84 108, coulomb cutoff 1.402: 2333.3 M-cycles step 240: timed with pme grid 72 72 96, coulomb cutoff 1.561: 2516.6 M-cycles step 320: timed with pme grid 64 64 80, coulomb cutoff 1.840: 3431.2 M-cycles step 400: timed with pme grid 96 96 112, coulomb cutoff 1.314: 2684.6 M-cycles step 480: timed with pme grid 96 96 108, coulomb cutoff 1.363: 2610.2 M-cycles step 560: timed with pme grid 80 84 108, coulomb cutoff 1.402: 2330.4 M-cycles step 640: timed with pme grid 80 80 104, coulomb cutoff 1.415: 2149.0 M-cycles step 720: timed with pme grid 80 80 100, coulomb cutoff 1.472: 2282.5 M-cycles step 800: timed with pme grid 80 80 96, coulomb cutoff 1.533: 2440.7 M-cycles step 880: timed with pme grid 64 64 96, coulomb cutoff 1.757: 3136.5 M-cycles
              optimal pme grid 80 80 104, coulomb cutoff 1.415
           Step           Time         Lambda
           2000        4.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.75222e+04    3.41983e+04    1.56252e+03   -1.48124e+04 1.26605e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.86561e+04   -1.74134e+06    4.80517e+03   -1.50280e+06 2.74079e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22872e+06    2.97442e+02    1.11946e+02    4.97038e-06

           Step           Time         Lambda
           4000        8.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.77735e+04    3.40478e+04    1.55007e+03   -1.44974e+04 1.26617e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.99255e+04   -1.74150e+06    4.64326e+03   -1.50144e+06 2.72655e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22879e+06    2.95896e+02    1.20289e+01    4.96588e-06

           Step           Time         Lambda
           6000       12.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.81221e+04    3.39915e+04    1.59676e+03   -1.47521e+04 1.26560e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.81554e+04   -1.73932e+06    4.75281e+03   -1.50089e+06 2.71166e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22973e+06    2.94281e+02    3.46273e+01    4.89748e-06

           Step           Time         Lambda
           8000       16.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.78257e+04    3.35386e+04    1.57203e+03   -1.45192e+04 1.26689e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.83318e+04   -1.73972e+06    4.61104e+03   -1.50167e+06 2.73747e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22792e+06    2.97081e+02    9.03051e+01    4.89449e-06

           Step           Time         Lambda
          10000       20.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.74885e+04    3.37616e+04    1.56529e+03   -1.46381e+04 1.26331e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.59409e+04   -1.73768e+06    4.63791e+03   -1.50260e+06 2.72735e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22986e+06    2.95982e+02   -1.14181e+02    4.95959e-06

           Step           Time         Lambda
          12000       24.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.78367e+04    3.40592e+04    1.55085e+03   -1.47973e+04 1.26719e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.93389e+04   -1.74059e+06    4.64703e+03   -1.50124e+06 2.72343e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22890e+06    2.95557e+02    1.33158e+02    4.89296e-06

           Step           Time         Lambda
          14000       28.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.77797e+04    3.44968e+04    1.63869e+03   -1.47180e+04 1.26373e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.83450e+04   -1.74028e+06    4.61777e+03   -1.50175e+06 2.72387e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22936e+06    2.95605e+02    6.12269e+00    4.98597e-06

           Step           Time         Lambda
          16000       32.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.75292e+04    3.36058e+04    1.67502e+03   -1.43040e+04 1.26396e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    5.04003e+04   -1.74248e+06    4.70094e+03   -1.50248e+06 2.72324e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.23015e+06    2.95537e+02    1.64334e+02    4.97314e-06

           Step           Time         Lambda
          18000       36.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.81658e+04    3.40675e+04    1.57609e+03   -1.45716e+04 1.26521e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    5.16244e+04   -1.74247e+06    4.68621e+03   -1.50040e+06 2.71938e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22846e+06    2.95118e+02    1.24742e+02    4.97458e-06

           Step           Time         Lambda
          20000       40.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.79139e+04    3.35854e+04    1.53764e+03   -1.45186e+04 1.26644e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.93214e+04   -1.74182e+06    4.73934e+03   -1.50259e+06 2.73360e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22923e+06    2.96661e+02    5.05927e+01    4.86786e-06

           Step           Time         Lambda
          22000       44.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.76891e+04    3.47562e+04    1.65573e+03   -1.45616e+04 1.26527e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.92753e+04   -1.74023e+06    4.73983e+03   -1.50014e+06 2.72006e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22814e+06    2.95191e+02   -6.57924e+00    4.96477e-06

           Step           Time         Lambda
          24000       48.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.76193e+04    3.44905e+04    1.55150e+03   -1.46070e+04 1.26559e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.90591e+04   -1.73865e+06    4.68991e+03   -1.49929e+06 2.72635e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22666e+06    2.95874e+02   -1.64041e+01    4.93705e-06

           Step           Time         Lambda
          26000       52.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.79457e+04    3.39780e+04    1.60300e+03   -1.44765e+04 1.26544e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.76575e+04   -1.74067e+06    4.61449e+03   -1.50280e+06 2.73512e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22929e+06    2.96826e+02   -1.92726e+01    4.97294e-06

           Step           Time         Lambda
          28000       56.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.79846e+04    3.43774e+04    1.55924e+03   -1.44129e+04 1.26602e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.98360e+04   -1.74239e+06    4.60775e+03   -1.50183e+06 2.73156e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22868e+06    2.96440e+02    1.20466e+02    4.83686e-06

           Step           Time         Lambda
          30000       60.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.79217e+04    3.40808e+04    1.66489e+03   -1.46594e+04 1.26586e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.83414e+04   -1.73951e+06    4.58175e+03   -1.50099e+06 2.73058e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22794e+06    2.96333e+02   -7.79706e+01    4.93017e-06

           Step           Time         Lambda
          32000       64.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.81304e+04    3.40636e+04    1.62792e+03   -1.46462e+04 1.26630e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.84920e+04   -1.74024e+06    4.61553e+03   -1.50133e+06 2.73041e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22829e+06    2.96315e+02   -4.93505e+01    5.00846e-06

           Step           Time         Lambda
          34000       68.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.83906e+04    3.35932e+04    1.54746e+03   -1.46102e+04 1.26587e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.65123e+04   -1.73669e+06    4.66940e+03   -1.50000e+06 2.72370e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22763e+06    2.95587e+02    3.49948e+01    4.84548e-06

           Step           Time         Lambda
          36000       72.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.79808e+04    3.39248e+04    1.65090e+03   -1.45744e+04 1.26665e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.81267e+04   -1.73795e+06    4.67039e+03   -1.49951e+06 2.71574e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22793e+06    2.94723e+02   -2.77373e+00    5.00708e-06

           Step           Time         Lambda
          38000       76.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.76108e+04    3.39492e+04    1.61483e+03   -1.46447e+04 1.26405e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.86239e+04   -1.74192e+06    4.64354e+03   -1.50372e+06 2.72468e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.23125e+06    2.95694e+02   -3.46091e+01    4.83479e-06

           Step           Time         Lambda
          40000       80.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.75317e+04    3.42019e+04    1.62794e+03   -1.45424e+04 1.26466e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.96389e+04   -1.74253e+06    4.68602e+03   -1.50292e+06 2.72934e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22999e+06    2.96198e+02    3.22313e+01    5.02197e-06

           Step           Time         Lambda
          42000       84.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.80765e+04    3.42050e+04    1.52647e+03   -1.45472e+04 1.26425e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.95822e+04   -1.74110e+06    4.69777e+03   -1.50113e+06 2.72607e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22852e+06    2.95843e+02   -1.13640e+01    4.92608e-06

           Step           Time         Lambda
          44000       88.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.78492e+04    3.40960e+04    1.63704e+03   -1.45698e+04 1.26346e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.75518e+04   -1.73985e+06    4.59341e+03   -1.50234e+06 2.72002e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.23034e+06    2.95187e+02   -8.41246e+01    5.03544e-06

           Step           Time         Lambda
          46000       92.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.77658e+04    3.42858e+04    1.67298e+03   -1.47786e+04 1.26686e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.93716e+04   -1.74306e+06    4.61603e+03   -1.50344e+06 2.74380e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22906e+06    2.97768e+02   -2.28804e+01    4.95687e-06

           Step           Time         Lambda
          48000       96.00000        0.00000

   Energies (kJ/mol)
       G96Angle    Proper Dih.  Improper Dih.          LJ-14 Coulomb-14
    3.82197e+04    3.34201e+04    1.57555e+03   -1.46122e+04 1.26530e+05
        LJ (SR)   Coulomb (SR)   Coul. recip.      Potential Kinetic En.
    4.77465e+04   -1.73781e+06    4.69134e+03   -1.50024e+06 2.72870e+05
   Total Energy    Temperature Pressure (bar)   Constr. rmsd
   -1.22737e+06    2.96129e+02    2.47163e+01    4.86327e-06

Writing checkpoint, step 48640 at Mon May  6 21:34:34 2013


           Step           Time         Lambda
          50000      100.00000        0.00000


-------------------------------------------------------
Program mdrun, VERSION 4.6.1
Source code file: /home/cintia/Downloads/gromacs-4.6.1/src/mdlib/nbnxn_cuda/nbnxn_cuda.cu, line: 565

Fatal error:
cudaStreamSynchronize failed in cu_blockwait_nb: unspecified launch failure

For more information and tips for troubleshooting, please check the GROMACS
website at http://www.gromacs.org/Documentation/Errors
-------------------------------------------------------

"O My God, They Killed Kenny !" (South Park)

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