gromacs-nb-cpu-pme-gpu-error

mahmood@orca:lysozyme$ gmx mdrun -nobackup -nb cpu -pme gpu -deffnm md_0_1
                       :-) GROMACS - gmx mdrun, 2018 (-:

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GROMACS:      gmx mdrun, version 2018
Executable:   /usr/local/gromacs/bin/gmx
Data prefix:  /usr/local/gromacs
Working dir:  /home/mahmood/gromacs-2018/bench/lysozyme
Command line:
  gmx mdrun -nobackup -nb cpu -pme gpu -deffnm md_0_1

Reading file md_0_1.tpr, VERSION 2018 (single precision)

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Program:     gmx mdrun, version 2018
Source file: src/gromacs/taskassignment/decidegpuusage.cpp (line 341)
Function:    bool gmx::decideWhetherToUseGpusForPme(bool, gmx::TaskTarget, const std::vector<int>&, bool, int, int, bool)

Feature not implemented:
The PME on the GPU is only supported when nonbonded interactions run on GPUs
also.

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