[gmx-users] Add ions Error!

[Qiang Zhong]

Dear users:
    I want to regulate my system salt concentration by add ions,I use command:
genion -s input.tpr -conc 0.15 
then I got error message:
Fatal error:
Your solvent group size (1459) is not a multiple of 8

Then I use command:
genion -s input.tpr -np 24 -nn 4

Also I got message:
Fatal error:
Your solvent group size (1459) is not a multiple of 8

What shall I do ,Could somebody tell me?
Thank you very much!




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Qiang Zhong
Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education  
College of Animal Sciences and Technology 
Huazhong Agricultural University
Wuhan,Hubei, 430070
PR China