[cgl_discussion] Using XML-RPC for Remote Access to openHpi L ibraries

Cress, Andrew R andrew.r.cress at intel.com
Wed May 7 07:01:18 PDT 2003

OK, but I think this may need more explanation.

In the brief explanation in section 3.7, what appears to be key is that
where the platform provides a proxy or remote interface, such as
CMM-to-blades, HPI sessions should use it seamlessly.  However, I'm
concerned when section 3.7 is interpreted so that all HPI sessions opened by
a given library implementation have to go through RPC or similar before
accessing the platform resources, which are often local to the library.  I
don't think that was the intent of the spec was it?

If the RPC-like stuff is intended to be skipped for local resources, then I
think we're on the same page.


-----Original Message-----
From: Sean Dague [mailto:sean at dague.net] 
Sent: Tuesday, May 06, 2003 3:43 PM
To: Cress, Andrew R
Cc: 'Rusty Lynch'; Steven Dake; David Judkovics; cgl_discussion at osdl.org
Subject: Re: [cgl_discussion] Using XML-RPC for Remote Access to openHpi L

On Tue, May 06, 2003 at 12:22:59PM -0700, Cress, Andrew R wrote:
> I had been thinking that the HPI interface was primarily intended for
> hardware-independence,
> where the element manager (or some HPI-compliant stub) would reside
> and the remote communication would be handled above the HPI interface, not
> within the HPI library implementation as seems to be implied here.  If it
> remains above the line, there is a lot more flexibility of LAN/WAN
> communication paths.  

HPI is definitely intended to be remotable from my reading of the
specification.  Reference Section 3.6 and 3.7 of the HPI spec for more 
information on this.

If a consumer of HPI decided to use HPI only in a local context, and do
remoting above that line, that would be valid policy for that user. 
However, in general, there exists a need to have remotability of HPI



Sean Dague                                       Mid-Hudson Valley
sean at dague dot net                            Linux Users Group
http://dague.net                                 http://mhvlug.org

There is no silver bullet.  Plus, werewolves make better neighbors
than zombies, and they tend to keep the vampire population down.

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