[openib-general] GAMESS and MVAPICH
Roland Dreier
Tue Apr 20 11:10:10 PDT 2004
Troy> Is there a tuning parameter in one of the openib candidate
Troy> stacks that allows tuning of polling vs interrupt driven
Troy> operation? At the moment the data server winds up polling
Troy> the infiniband card and taking cpu from the compute process.
Any InfiniBand stack should leave this to the application. The
application can either use the "poll CQ" verb in a polling loop to
check for completions, or use the "request completion notification"
verb and sleep until a completion event occurs.
- Roland
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