HP SVA V2.1 Release Notes

9. Job Launch: EnSight Script Requires Previous ssh Login
• Impact
Low.
• Summary
Before using the sva_ensight82.sh script for the first time, you must ssh to the all
the nodes in the cluster, or the script fails.
• Solution
ssh to all the nodes in the cluster before using the script. When you access each node
with ssh, you must do so twice by using each of the two names used by the nodes for
each network. That is, the Administration network uses the base node name, for example,
viz6; the System Interconnect uses the base node name with the ic- prefix, for example,
ic-viz6. To avoid problems, ssh to all the visualization nodes in the cluster, including
the head node, and then execute the script. You only need to ssh to the nodes this way
one time.
Note that this login step is also needed for the sva_paraview.sh script. Its manpage
documents this requirement.
10. Job Termination: Spurious scancel Warnings
• Impact
Low.
• Summary
Occasionally, jobs end with an warning similar to the following:
scancel: error: Kill job error on job id 431.17: Invalid job id specified
• Solution
This message is harmless and you can ignore it.
The message is an artifact of how job cleanup is done. The cleanup script occasionally
tries to clean parts of the job that didn't start.
11. Environment Variables: path/ld_library_path Conflicts
• Impact
Low.
• Summary
The SVA software adds items to PATH and LD_LIBRARY_PATH environment variables
when the user logs in or starts a shell. If these values are over written, then the SVA
tools will not be able to start.
• Solution
Instead of replacing a PATH/LD_LIBRARY_PATH, you should append any new values
to existing values in the environment variables.
12. DMX: 4K x 4k Total Display Device Restriction
• Impact
Low.
• Summary
When used alone, DMX only supports multitile display devices that total 4Kx4K pixels.
• Solution
Use the Chromium-DMX script interactively as documented in the User's Guide.
12 Welcome to the HP Scalable Visualization Array V2.1 Release