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icetDataReplicationGroup

icetDataReplicationGroup

Section: IceT Reference (3) Updated: April 20, 2006
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NAME

icetDataReplicationGroup -- define data replication.

 

Synopsis

#include <GL/ice-t.h>

void icetDataReplicationGroup(GLintsize,
const GLint *processes );

 

Description

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 same order.

You can alternately use icetDataReplicationGroupColor to select data replication groups.

By default, each process belongs to a group of size one containing just the local processes (i.e. there is no data replication).

 

Errors

ICET_INVALID_VALUE

 processes does not contain the local process rank.

 

Warnings

None.

 

Bugs

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 rendered.

 

Copyright

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.

 

See Also

icetDataReplicationGroupColor(3), icetDrawFunc(3), icetBoundingVertices(3), icetBoundingBox(3)


 

Index

NAME
Synopsis
Description
Errors
Warnings
Bugs
Copyright
See Also

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Time: 21:48:06 GMT, April 16, 2011