Segmentation Violation: colvars

From: Vamshi Gangupomu (
Date: Sun Nov 15 2009 - 05:32:42 CST

Hello Everyone,

I have been trying to fold a protein using metadynamics as a simple
exercise. I made the colvars config file based on the user guide and forums.
I am using distance between two groups of atoms and am getting a
"segmentation violation" error. Here is my colvars config file:

colvarsTrajFrequency 10

colvar {
    name d
    lowerBoundary 0.0
    upperBoundary 10.0
    width 0.5

    distance {
        group1 {atomNumbersRange 1-23}
        group2 {atomNumbersRange 434-458}
metadynamics {
    colvars d
    hillWeight 0.01
    dumpFreeEnergyFile yes

Am I doing some thing worng here? I have just started using this, so any
adivce/help is really appreciated.

Thank you,

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