Skip to content

"SIGSEGV: Segmentation fault - invalid memory reference" for --entropy Option #477

@GregCurtin

Description

@GregCurtin

I am studying a 44 atom, high-spin Cobalt complex. I have added constrains via an xcontrol file for my coordinated atoms as xtb struggles to keep the coordination intact on its own. I am able to run a constrained conformational sampling just fine. However, when I add the --entropy keyword, I get the SIGSEGV error in the title. I also notice that when I drop the --cinp xcontrol and make it unconstrained, still with --entropy, that CREST will run it but it will result in a singular conformer at the end and therefore no entropy data will be available.

Summary:
CREST 3.0.2: constrained run works, but adding --entropy causes a SIGSEGV in get_xtb_constraint_block / parse_xtbinput.f90:142.

Working:
crest xtbopt.xyz --gfn2 --chrg -3 --uhf 3 --noreftopo --cinp xcontrol --gbsa water --T 16

Runs, but without --cinp xcontrol only gives one configuration:
crest xtbopt.xyz --gfn2 --chrg -3 --uhf 3 --noreftopo --gbsa water --entropy --T 16

Crashing:
crest xtbopt.xyz --gfn2 --chrg -3 --uhf 3 --noreftopo --cinp xcontrol --gbsa water --entropy --T 16

xcontrol:
$constrain
atoms: 9,18,19,28,35,40
force constant=0.2
reference=coord.ref.xyz
$metadyn
atoms: 1-8,10-17,20-27,29-34,36-39,41-44
$end

I would like to know if there is any tips and tricks to allow for the --entropy setting to work. Thank You.

Metadata

Metadata

Assignees

No one assigned

    Labels

    bugSomething isn't working

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions