LIGGGHTS® - User Forum

Hello everyone,

Is it possible to dump the processor ID of a particle locating when the simulation operates in parallel?
Or the original processor ID?
Your hint will be highly appreciated.
Thanks
Kai

Hi all,

I need the header files of the Paraview in order to build a plugin. To have them, in the Paraview building manual it says I have to implement this variable "PARAVIEW_INSTALL_DEVELOPMENT_FILES" during configuring it. But there's no such option in Mac OS (as the manual also says).

So was wondering if anybody knows a way how to introduce this variable in Mac OS? Or a way how to get the header files after installation in order to build a plugin?

Thanks a ton!
Danial

Hello!

I'm running a Simulation at Liggghts and at a specific time step i get this error message.
Does somebody now what this error message means?

Hi

I am trying simulate a mixing process and I am using two types of atomic particles. After I ran the simulation I found that there is a mismatch between the total number After I ran this simulation my LIGGGHTS log file had these messages:

Hello everyone

I along with my colleague have been trying to install LIGGGHTS 2.3.7 in Altix ICE 8400 EX Supercomputer. Information about the cluster can be found at http://www.cmmacs.ernet.in/index.php/en/33-highlights/143-csir-cmmacs-al...

However, after a lot of efforts it got installed but while running liggghts it gives the message Segmentation fault (core dumped>

I have a small simulation running with a fix massflow/mesh command which I assume is running correctly because it spits out numbers. However, I don't understand what the numbers mean, and the manual page only confuses me more. For example, it says the second vector component is a particle count, but the second number is my output is a small decimal.

Please help me understand this output, or tell what other fixes or computes I need to do to it. Please see my output data attached below.

Hi everybody,
i have a problem with implementing the "gran model hook/stiffness tangential history" model:
If i replace "hook" with "hertz" curiously the program works fine.

Here's the first part of my input-script:
atom_style granular
boundary f f f
newton off
atom_modify sort 0 0

communicate single vel yes
units si
processors 5 2 1

I'm trying to simulate a particle flow where I roughly know the distribution of particle size (vendor supplies a table of mesh size and mass %). While the range of particle size is decently large - probably about a max of 4:1 between largest:smallest: - the mass % at those extremes is fairly small.

Anyways, I'm trying to use multiple fix particletemplates for the differing mesh sizes, but I either seem to encounter an error messege saying:

ERROR: Cannot use neighbor bins - box size << cutoff (../neighbor.cpp:1670)

or

Hey everyone there,

I am doing a simulation of a cylindrical shear cell which needs 68000 particles to operate. Unfortunately i can't handle this amount with my hardware so the idea was to cut out the half or a quarter of the cell.

The problem is, that i found no way to define periodic boundary conditions for this special case. Is there a workaround? Can anybody tell me if it is possible to do a simulation of a part of a cylinder?

Thanks in advance
Stephan

linux newbie here. trying to do a git pull to get the 3.0.2 version of liggghts. performing git pull from my install directory (~/home/USERNAME/documents/liggghts - this is installed on a cygwin setup) but I get an error saying:

Updating 3fab782..3ec8c7f
error: Your local changes to the following files would be overwritten by merge:
src/style_pair.h
src/version_liggghts.h
Please, commit your changes or stash them before you can merge.
Aborting

What am I missing/doing wrong?