[gmx-users] question about convert Ryckaert-Bellemans dihendral to dihendral type 9

2019-04-29 Thread
Dear all: I am trying use antichamber to generate an tpr file for a special residue. When I got the converted tpr file, I noticed that the "func" in [dihendral] is 3, that means it is a Rychaert-Bellemans dihendral. But the Amber03 forcefield use dihendral type 9(func 9). So does anyone

[gmx-users] problem encountered during installation, the AVX2_256support

2016-10-09 Thread
Dear gmx users: I encountered a problem when I was installing the gromacs. I used "cmake .. -DGMX_SMID=AVX2_256" command try to support my new intel CPU,but the system reports the following things: -- Compiler flag was valid, but executable did not build - perhaps update the

[gmx-users] Problem in using pdb2gmx to generate top file

2016-01-08 Thread
Hi everyone, I encountered a problem when I using pdb2gmx to convert a pdb file into gro and top file. The system give me a fatal error message as following: Fatal error: Residue 145 named LYS of a molecule in the input file was mapped to an entry in the topology database, but the atom CG used