Dear Ms. Tara Majdi,
Thank you so much for your time in providing me with your advice. Following your suggestion, I noticed that the first molecule was inserted into my simulation domain at timestep 1.
According to the following fix deposit command,
fix 4 addatoms deposit 3 1 100000 12345 region mobile near 0.0 mol dimer vx 0 0 vy 0 0 vz 0 0
I am expecting the first molecule to be inserted at timestep 100000. However, it is evident that the molecule was inserted at timestep 1 and the second molecule was inserted at timestep 100001 such that at two inserted molecules exist at the start of 100001 until 200000 timestep. The third molecule was inserted at timestep 200001 thereby three molecules present at the start of 200001 and at 300000 timestep. Therefore, I have a total of 3 molecules at the end of the simulation that lasts for 300000.
The total number of atoms at the end of my simulation is consistent to the value I specified in my script.
I was curious if it is possible for the first molecule to be inserted at M = 1000 timestep.
Once again, I deeply appreciate your time and effort in providing me with your advice.