Particles and Cluster

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VincentPix
Posts: 39
Joined: 06 Nov 2014, 15:07

Particles and Cluster

Post by VincentPix » 19 Nov 2018, 17:52

Hello

I wonder how the synchronisation of the particles works in cluster mode.

If I do a burst of particle how to be sure that it will be the same "random" emission on every machine of the cluster.

Thant you for your advices.

Vincent

stephen
Posts: 74
Joined: 06 Aug 2013, 14:11

Re: Particles and Cluster

Post by stephen » 20 Nov 2018, 12:10

Hi Vincent,

there is no synchronization specifically for particles. We simply take advantage of the fact that a Computer cannot generate real random numbers. So the random numbers in the particle system have the same seed by default and thus generate the same results. As long as e.g. Events are not fired in different frames or the particle system gets different inputs on each cluster machine otherwise, the result will be in sync. In a simulated particle stream when a machine drops a frame the result of course can differ as well - this will not happen in a functional stream, since the particles' attributes are directly based on the cluster clock and not on the last frame's attributes.

I hope this will give you some insight into the workwise of the particle system
Best
Stephen

VincentPix
Posts: 39
Joined: 06 Nov 2014, 15:07

Re: Particles and Cluster

Post by VincentPix » 20 Nov 2018, 12:21

Perfect !

Thank you very much

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