This combo-box corresponds to an option offered
in SYRTHES when performing parallel computation.
Parallelism in SYRTHES is based on domain decomposition, therefore
an initial phase split the domain in the specified number of parts.
This step (based on the use of the external library Metis) can take some time
(especially for very large cases).
When the geometry does not change,
or the number of processors to be used stays
the same, this phase can be by-passed.
- Automatic mesh partitionning will take the inital mesh and will generate the sub-domains automatically.
- Mesh already partitionned corresponds to an existing set of sub-domain.
This can also be usefull for huge cases due to the fact that so far, the splitting phase
is not yet parallel and may require large memory computer and has to be done on workstation
having more memory than what is generally available on the processors of the cluster.
Typically, the largest study done so far ("Homogeneous properties in concrete" in 2010 by C. Peniguel and I. Rupp)
with SYRTHES (counting 1.496 billion tetra) required almost 120Gb of RAM for this initial step.
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SYRTHES version : 4.1.0
Name help file : Ro_Dp_cb.html
I. Rupp, C. Peniguel - january 2013
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