insertion particles when using parallel process

Submitted by g.garate on Sun, 05/12/2013 - 01:06

Please take a look at the attached file, it is a picture with two images. The one of the left side is a simulation using series process. The one of the right side is a simulation using parallel process (processors 2 2 1). As you can see, the last one has a lack of particles due to the division of processors. Is it normal this situation?

Regards

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Image icon serie vs paralelo.jpg75.48 KB
ckloss's picture

ckloss | Tue, 05/14/2013 - 12:50

I am not sure if I completely understand what the pic shows, but yes, there is a difference in in

As insertion in LIGGGHTS is parallelized and communication between processes is avoided, there is some unavoidable "gap" on the inter-processor boundaries

Best
Christoph

g.garate | Tue, 05/14/2013 - 18:24

The pic shows the "gap" on the inter-processor boundaries. Is there any line I could to add or modify in the input script in order to avoid this gap?

Regards

ckloss's picture

ckloss | Tue, 05/14/2013 - 23:34

Hi,

>>Is there any line I could to add or modify in the input script in order to avoid this gap?
no - this is unavoidable. But typically it's not a problem. You could use alternative ways of insertion (e.g. via data file) is this is critical for your application

Christoph