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When I add Lagrangian particles to the simulation, I also need to sample the model state along each Lagrangian trajectory. For example, I need a time series of vorticity, or maybe a passive tracer (o…
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Hello,
I'm trying to perform a simulation using a large number of releasing zones (> 10.000). The zones are basically 3km x 3km squares that will act as both release and recruitment sites for parti…
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Hi all!
I am trying to initialize particles from an external file to get a custom distribution with aggregates of particles.
When I increase the number of particles in the openPMD file above a certa…
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## Description
There's been some recent (and IIRC, previous) discussion around adding cell importance. I'm creating this issue as a place for that discussion and for the placement of motivating use…
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Hi all - I'm new to developing OpenMM. I'm looking to implement a way of extracting/calculating electrostatic potentials/fields at specific atoms/positions using OpenMM. Preferably accessed through th…
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In `data/pdg13-n25-0.5to10GeV-0.5eta` there are more complicated input files. The simulation is now done with
* particles of transverse momentum 0.5 to 10 GeV
* 25 particles per event
- [x] Lea…
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Right now we iterate the pool to find the first not-in-use particle. This is really inefficient, we should implement a free list.
This will probably allow the CPU bound particle simulation to have ma…
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Hi, for my project I need to run a polymer simulation where some of the bonds change on the fly. I am only interested in two-body harmonic bonds. I have a pre-computed bond-list as a text file. There …
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Hello, when i run this demo code, it shows module 'taichi' has no attribute 'ext_arr'
[Taichi] version 1.6.0, llvm 15.0.5, commit f1c6fbbd, osx, python 3.9.7
Traceback (most recent call last):
…
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* The breakable bonds feature removes bonds stretched beyond a certain limit.
* The breaking happens during the integration loop, after the force calculation
* Under normal conditions, no bonds exis…