HP SVA V2.0 Release Notes

13. Compositing Library: Running your application produces the message: Error: Posting rdma recv -
host: [int] Max. WR number exceeds capabilities
• Impact
Medium
• Summary
Your application creates too many framelets. The Library has high but fixed limits on
the number of outstanding messages it supports on the InfiniBand network. The
application has exceeded this limit (roughly 1,000 outstanding messages per program).
[int] is the hostIndex of the host whose message queue is exhausted.
• Solution
If the total number of framelets in your application (across all hosts) is over 200, you
should look at reducing the number of framelets. If this is not the case, then check if
one or more of the hosts is not progressing at a reasonable rate. It is possible that a host
has not serviced the messages it has received in a timely way. It may be spending too
much time doing other processing.
14. Compositing Library: Unwanted changes to the color buffer when using PC_PF_Z24I (24 bit depth
component)
• Impact
Low
• Summary
When using PC_PF_Z24I for depth compositing, the Library copies the depth pixels
to the color buffer. The color buffer is then read back to get the depth pixels. The color
buffer is not restored with the earlier content.
• Solution
If you want to keep the color buffer unchanged while doing depth compositing, then
consider using a different pixel format. 32 bit (PC_PF_Z32I) and 8 bit (PC_PF_Z8I)
formats can be used for depth compositing. Use as needed.
14 Welcome to the HP Scalable Visualization Array V2.0 Release