[openib-general] GAMESS and MVAPICH

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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