[petsc-users] DMNetworkSetSizes called by all processors

[Miguel Angel Salazar de Troya]

Hi

I was checking this example:

http://www.mcs.anl.gov/petsc/petsc-current/src/snes/examples/tutorials/network/pflow/pf.c.html

In line 443, the data is read by processor 0 and DMNetworkSetSizes is
called in 461 by all processors, since it is collective. However, the data
read by processor 0 has not been broadcasted and numEdges and numVertices
and have still a value of zero for the other processors. Does this mean
that the other processors create a dummy DMNetwork and wait to receive
their partition once the partitioning is called in line 508? Is this a
standard procedure to create meshes in parallel?

Thanks
Miguel

-- 
*Miguel Angel Salazar de Troya*
Graduate Research Assistant
Department of Mechanical Science and Engineering
University of Illinois at Urbana-Champaign
(217) 550-2360
salaza11 at illinois.edu
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