[Gate-users] Track stuck or not moving

[Matthew Strugari]

Have you verified that your geometry is not overlapping?

Matthew

On Sep 22, 2019, at 2:14 PM, Svetlana Shasharina <sveta at txcorp.com<mailto: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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