[openib-general] thread safety

Sean Hefty mshefty at ichips.intel.com
Thu Jun 29 16:45:00 PDT 2006


Andrew Friedley wrote:
> I'm working with Matt Leininger this summer on developing support for UD 
> in Open MPI, and eventually multicast collectives - he suggested I ask 
> my question here.
> 
> Is there any documentation available on thread safety (i.e., what is 
> (non-)reentrant) with the openib verbs?  I've had trouble finding 
> anything more than vague hints with google.

Some kernel information is available in gen2/trunk/src/linux-kernel/docs.  See 
core_locking.txt.  Some of the information applies to userspace as well, such as 
all verbs being fully reentrant.

- Sean




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