Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted provided that the above copyright notice appear in all copies and that both the copyright notice and this permission notice appear in supporting documentation.
Neither the Institution, Oak Ridge National Laboratory, nor the Authors make any representations about the suitability of this software for any purpose. This software is provided ``as is'' without express or implied warranty.
CUMULVS was funded by the U.S. Department of Energy.
CUMULVS is an infrastructure library that allows a programmer to easily extract data from a running parallel simulation and send the data to a visualization package. CUMULVS includes the capability to steer user-defined parameters in a distributed simulation. A future feature being added to CUMULVS is the ability to perform user-directed checkpointing and restarts of parallel programs across a heterogeneous network. The interface is kept as simple as possible. The programmer merely defines the decomposition of parallel data and the number and types of scalar parameters, and CUMULVS does the rest. It supports the simultaneous viewing of multiple dynamically attached front-end visualization programs, or viewers. A single interface routine handles the attachment / detachment protocols, the selection and sending of data, and updating steering parameters. CUMULVS allows each viewer to interactively select the granularity and extent of data that it desires to see. This allows the user to effectively visualize large datasets without exhausting the available network bandwidth. The next release of CUMULVS will also support user- directed checkpointing and restarts across a heterogeneous machine. The visualization and checkpointing features of CUMULVS will be independent.
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file README for README file for cumulvs version 1.1.1 ' Last updated 9/27/00 file CUMULVS1.1.1.src.tgz for Latest complete source code distribution for CUMULVS version 1.1.1 ' Last update 9/27/00 file cumulvs.user.guide.ps for Latest Version of the User's Guide for CUMULVS version 1.0 , Last updated 8/23/96 (201793 bytes).