HP Scalable Visualization Array, V1.1 Readme/Release Notes

3. Displays: Display Surface Names Cannot Have Spaces
• Impact
Low.
• Summary
The Display Surface Configuration Tool can only create Display Surfaces without spaces in the
name.
• Solution
Use names without spaces, for example, MY_DISPLAY rather than MY DISPLAY.
4. Display Configuration: X Display Server on a Workstation Head Node Defaults to 1024x768 @ 60
hz
• Impact
Medium.
• Summary
When installing on a head node with a graphics card, the default resolution is 1024x768@60
Hz. This was done to support users with a relatively low resolution display device (such as an
RKM) connected to the head node.
• Solution
If your have a more capable display on the head node, you can change the
/etc/X11/xorg.conf file to specify the resolution. The default xorg.conf already has a
specification for a more capable display device, and turning it on is relatively straight forward.
To make the change, edit the /etc/X11/xorg.conf config file on the head to change the
specific monitor from RKM to MyMonitor.
Original configuration in file:
#Monitor "MyMonitor"
Monitor "RKM"
New Configuration:
Monitor "MyMonitor"
#Monitor "RKM"
5. Job Launch: srun/slurm Hang Without Launching the Job Steps
• Impact
Medium.
• Summary
The job stops responding when launching various components. This happens rarely, but when it
is does, it can cause the job to stop progressing.
The job does not exit cleanly. Instead, it waits indefinitely for everything to complete.
• Solution
On the node that launched the job, use ps to determine which srun commands have not exited.
ssh to the nodes with pending srun commands, and kill any parts of the job that have not cleanly
exited.
This should cause the slurmd process on the node to exit, which should cause the pending srun
commands to complete.
Release Notes 9