icetDataReplicationGroup -- define data replication.
void icetDataReplicationGroup( GLint size,
const GLint * processes );
IceT has the ability to take advantage of geometric data that is
replicated among processes. If a group of processes share the same
geometry data, then IceT will split the region of the display that the
data projects onto among the processes, thereby reducing the total
amount of image composition work that needs to be done.
Each group can be declared by calling icetDataReplicationGroup and
defining the group of processes that share the geometry with the local
process. size indicates how many processes belong to the group, and
processes is an array of ids of processes that belong to the group.
Each process that belongs to a particular group must call
icetDataReplicationGroup with the exact same list of processes in the
You can alternately use icetDataReplicationGroupColor to select data
By default, each process belongs to a group of size one containing just
the local processes (i.e. there is no data replication).
processes does not contain the local process rank.
IceT assumes that icetDataReplicationGroup is called with the exact
same parameters on all processes belonging to a given group. Likewise,
IceT also assumes that all processes have called icetBoundingVertices
or icetBoundingBox with the exact same parameters on all processes
belonging to a given group. These requirements are not strictly
enforced, but failing to do so may cause some of the geometry to not be
Copyright (C)2003 Sandia Corporation
Under the terms of Contract DE-AC04-94AL85000, there is a non-exclusive
license for use of this work by or on behalf of the U.S. Government.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that this Notice and any statement
of authorship are reproduced on all copies.
IceT Reference April 20, 2006 icetDataReplicationGroup(3)