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FU老师,gromacs使用colvar的ABF时出现问题。
colvars.dat文件:
units gromacs
indexFile index.ndx
colvarsTrajFrequency 500
colvarsRestartFrequency 20000
colvar {
name AtomDistance
width 0.1
lowerboundary 27.2
upperboundary 100.0
lowerwallconstant 100.0
upperwallconstant 100.0
distance {
group1 {
indexGroup O5
}
group2 {
indexGroup O3
}
}
}
abf {
colvars AtomDistance
fullSamples 500
hideJacobian
}
错误:
colvars: ----------------------------------------------------------------------
colvars: Initializing the collective variables module, version "2020-11-09".
colvars: Please cite Fiorin et al, Mol Phys 2013:
https://dx.doi.org/10.1080/00268976.2013.813594
in any publication based on this calculation.
colvars: SMP parallelism is enabled; if needed, use "smp off" to override this.
colvars: This version was built with the C++11 standard or higher.
colvars: Using GROMACS interface, version "2020-10-22".
colvars: ----------------------------------------------------------------------
colvars: Reading new configuration from file "colvars.dat":
colvars: # units = "gromacs"
colvars: # indexFile = "index.ndx"
colvars: The following index groups are currently defined:
colvars: System (340151 atoms)
colvars: DNA (911 atoms)
colvars: K (27 atoms)
colvars: Water (339213 atoms)
colvars: SOL (339213 atoms)
colvars: non-Water (938 atoms)
colvars: Ion (27 atoms)
colvars: Water_and_ions (339240 atoms)
colvars: O5 (1 atoms)
colvars: O3 (1 atoms)
colvars: # smp = on [default]
colvars: # colvarsTrajFrequency = 500
colvars: # colvarsRestartFrequency = 20000
colvars: # scriptedColvarForces = off [default]
colvars: # scriptingAfterBiases = off [default]
colvars: ----------------------------------------------------------------------
colvars: Initializing a new collective variable.
colvars: # name = "AtomDistance"
colvars: Initializing a new "distance" component.
colvars: # name = "" [default]
colvars: # componentCoeff = 1 [default]
colvars: # componentExp = 1 [default]
colvars: # period = 0 [default]
colvars: # wrapAround = 0 [default]
colvars: # forceNoPBC = off [default]
colvars: # scalable = on [default]
colvars: Initializing atom group "group1".
colvars: # name = "" [default]
colvars: # centerReference = off [default]
colvars: # rotateReference = off [default]
colvars: # atomsOfGroup = "" [default]
colvars: # indexGroup = "O5"
colvars: # psfSegID = [default]
colvars: # atomsFile = "" [default]
colvars: # dummyAtom = ( 0 , 0 , 0 ) [default]
colvars: # enableFitGradients = on [default]
colvars: # printAtomIDs = off [default]
colvars: Atom group "group1" defined with 1 atoms requested: total mass = 16, total charge = -0.834.
colvars: Initializing atom group "group2".
colvars: # name = "" [default]
colvars: # centerReference = off [default]
colvars: # rotateReference = off [default]
colvars: # atomsOfGroup = "" [default]
colvars: # indexGroup = "O3"
colvars: # psfSegID = [default]
colvars: # atomsFile = "" [default]
colvars: # dummyAtom = ( 0 , 0 , 0 ) [default]
colvars: # enableFitGradients = on [default]
colvars: # printAtomIDs = off [default]
colvars: Atom group "group2" defined with 1 atoms requested: total mass = 1.008, total charge = 0.417.
colvars: # oneSiteSystemForce = off [default]
colvars: # oneSiteTotalForce = off [default]
colvars: All components initialized.
colvars: # timeStepFactor = 1 [default]
colvars: # width = 0.1
colvars: # lowerBoundary = 27.2
colvars: # upperBoundary = 100
colvars: Reading legacy options lowerWall and lowerWallConstant: consider using a harmonicWalls restraint (caution: force constant would then be scaled by width^2).
colvars: # lowerWall = 100
colvars: Reading legacy options upperWall and upperWallConstant: consider using a harmonicWalls restraint (caution: force constant would then be scaled by width^2).
colvars: # upperWall = 0 [default]
colvars: Error: the value of upperWall must be set explicitly.
colvars: If this error message is unclear, try recompiling with -DCOLVARS_DEBUG.
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