Issue with collision saving

[stephanmaxime]

Hello,

I'm using MUSEN 1.73.1 on windows 10 entreprise
Here are my computer spec :
11th Gen Intel(R) core(TM) i7 - 11850H @ 2.50GHz
Intel(R) UHD Graphics

I'm trying to launch a simple simulation with 20 particles and save collisions
First of all, I don't find "save collision" in the graphical user interface. Is-it in Start simulation Window ?

My CMUSEN launch.txt is just below :

**_JOB
SOURCE_FILE test_collision.mdem
RESULT_FILE test_collision_result.mdem
COMPONENT SIMULATION

SIMULATION_STEP 0.00000008
SAVING_STEP 0.001
END_TIME 0.1
SAVE_COLLISIONS YES
SIMULATOR_TYPE CPU
MODEL_PP ModelPPJKR
MODEL_PW ModelPWHertzMindlin
EXT_ACCEL 0 0 -9.81
SIMULATION_DOMAIN -0.00012 -0.00012 -0.00012 0.00012 0.00012 0.00015_**

I have previously created an empty "test_collision_result.coll" in order to store collisions DATA.

When I launch the simulation, save collisions is taken into acount but simulation is aborted, as seen bellow. Moreover the same simulation without save collisions is running well.

_**Number of jobs: 1

//////////////////// Start processing job: 1 ////////////////////
Source file: test_collision.mdem
Result file: test_collision_result.mdem
Selected component: Simulator

Loading source file ... complete
Creating result file ... complete
Simulator type: CPU
Initial simulation time step [s]: 8e-08
Saving time step [s]: 0.001
End time [s]: 0.1
Variable simulation time step: No
Particle-particle contacts: JKR
Particle-wall contacts: Hertz-Mindlin
Auto-adjust Verlet distance: Yes
Initial Verlet coefficient: 2
Max Verlet cell number: 50
Consider particles anisotropy: No
Extended contact radius: No
Collisions saving: Yes
Selective saving: No
Periodic boundaries: Yes
Periodic boundaries enabled (X:Y:Z): No : Yes : No
Periodic boundary domain Y [m]: -7.5e-05 to 7.5e-05
External acceleration (X:Y:Z) [m/s^2]: 0 : 0 : -9.81
Simulation domain X [m]: -0.00012 to 0.00012
Simulation domain Y [m]: -0.00012 to 0.00012
Simulation domain Z [m]: -0.00012 to 0.00015

Total number of particles: 20
Total number of walls: 8636
Total number of solid bonds: 0
Total number of liquid bonds: 0

==================== Simulation started ====================

C:\Users\ms266161\Desktop\calculMUSEN>CMUSEN.exe lancement_etalement.txt
+---- Start creating thread pool ----+
Creating thread pool ... successful
Cores allowed by system: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
No user parameters for affinities present. Using system parameters.
Number of parallel threads created: 16
Threads pinned to cores: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Affinities set successfully
+---- Thread pool created ----+

Script name: lancement_etalement.txt
Number of jobs: 1

//////////////////// Start processing job: 1 ////////////////////
Source file: test_collision.mdem
Result file: test_collision_result.mdem
Selected component: Simulator

Loading source file ... complete
Creating result file ... complete
Simulator type: CPU
Initial simulation time step [s]: 8e-08
Saving time step [s]: 0.001
End time [s]: 0.1
Variable simulation time step: No
Particle-particle contacts: JKR
Particle-wall contacts: Hertz-Mindlin
Auto-adjust Verlet distance: Yes
Initial Verlet coefficient: 2
Max Verlet cell number: 50
Consider particles anisotropy: No
Extended contact radius: No
Collisions saving: Yes
Selective saving: No
Periodic boundaries: Yes
Periodic boundaries enabled (X:Y:Z): No : Yes : No
Periodic boundary domain Y [m]: -7.5e-05 to 7.5e-05
External acceleration (X:Y:Z) [m/s^2]: 0 : 0 : -9.81
Simulation domain X [m]: -0.00012 to 0.00012
Simulation domain Y [m]: -0.00012 to 0.00012
Simulation domain Z [m]: -0.00012 to 0.00015

Total number of particles: 20
Total number of walls: 8636
Total number of solid bonds: 0
Total number of liquid bonds: 0

==================== Simulation started ====================

C:\Users\ms266161\Desktop\calculMUSEN>**_

Please do you have an idea of the problem ?
Thank you !

Maxime