[Gate-users] Track stuck or not moving

[Howard]

Hi Matthew and Svetlana,

Thank you for your replies. Can you a bit more specific about the
production cuts? In the warning it says:

......
Trying pushing it of 1e-07 mm ...Potential overlap in geometry!

But I do not know what to change in my scripts though. I do not believe I
have overlapping geometry since the same geometry was working totally fine
when I tried to generate 2x10^7 events. Still confused.

Howard

On Sun, Sep 22, 2019 at 2:39 PM Matthew Strugari <matthew.strugari at dal.ca>
wrote:

> Have you verified that your geometry is not overlapping?
>
> Matthew
>
> On Sep 22, 2019, at 2:14 PM, Svetlana Shasharina <sveta at txcorp.com> wrote:
>
> Hi,
>
> You would try to change production cuts to be a little bit bigger.
>
> Best,
>
> Svetlana
> On 9/22/19 10:52 AM, Howard wrote:
>
> Hi,
>
> I was simulating a X-ray imaging process with 2 x 10^9 events. It has been
> running over 5200 minutes and still ongoing. From the output I saw the
> following warning message about "Track stuck or not moving" as attached
> below (multiple times). However, when I ran 2 x 10^7 events I did not have
> the same warming issue and the simulation was completed < 20 hours
> successfully. Should I worry about this warning or just ignore it and
> continue to wait? Thanks a lot!
>
> Howard
>
> -------- WWWW ------- G4Exception-START -------- WWWW -------
> *** G4Exception : GeomNav1002
>       issued by : G4Navigator::ComputeStep()
> Track stuck or not moving.
>           Track stuck, not moving for 10 steps
>           in volume -world_phys- at point
> (-5.649999594721559,4.81816525126774,-38.09301491743752) (local point
> (-5.649999594721559,4.81816525126774,-38.09301491743752))
>           direction:
> (0.6222482514791153,-0.3555437239478714,0.6974208011612956) (local
> direction: (0.6222482514791153,-0.3555437239478714,0.6974208011612956)).
>           Potential geometry or navigation problem !
>           Trying pushing it of 1e-07 mm ...Potential overlap in geometry!
>
> *** This is just a warning message. ***
> -------- WWWW -------- G4Exception-END --------- WWWW -------
>
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