[Sidefx-houdini-list] Particle fluids questions

Peter Bowmar pbowmar at gmail.com
Fri May 7 12:33:20 EDT 2010

Hi Phil,

Can't help with #1 but you can use the "-j" flag to Hscript or Houdini
to control the number of threads, so:

hbatch -j 4

will use up to 4 cores.

Since threading is never a linear gain, I often use -j 1 but 4 or 8
sims on one box (depending on the cores and RAM available) for maximum
efficiency. For a very hi-res sim, I use all cores available or it
doesn't get done until 2011 :)


Peter B

On 7 May 2010 04:18, Phil Spicer <PSpicer at bournemouth.ac.uk> wrote:
> Hi,
> One of my students is experiencing some difficulties with her particle fluid setup. It is two particle fluid hands coming together as a clap splash...
> One of the main problems is a group of particle fluid which hangs in space after the two fluid hands have clapped together. The splash explosion works as it should however there is a grouping of particle fluids which does not appear respond to forces and sits there for a while. They do begin to move again, only after other particles have begun interacting with them and influencing their position.
> The other problem, is outputting sims. Is there any way to specify a number of processors for calculating a sim (similar to the number of processors option found on a Mantra ROP).
> Any help or thoughts would be very welcome...
> Kind regards,
> Phil.
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