SGI originally developed a SWP for MIPS that was done by John Ruttenberg.  That 
code was never open-sourced as it had some copyright issues.  But SGI later 
sold a copy of that source to Reservoir, which is what they are referring to.  
For the IA64 target (which is very different, e.g. has rotating registers), a 
separate SWP was written at SGI, which was open-sourced, and that was improved 
by others as Sun mentions.  Pathscale also did a separate SWP for MIPS.

-----Original Message-----
From: Yonghong Yan [mailto:ya...@rice.edu] 
Sent: Tuesday, August 03, 2010 10:36 PM
To: Sun Chan
Cc: open64-devel@lists.sourceforge.net
Subject: Re: [Open64-devel] open64 on FreeBSD ia64 (Itanium2)

On Tue, 2010-08-03 at 22:27 -0700, Sun Chan wrote:
> the swp from sgi is for Mips. Much work was done by ICT and Tsinghua
> to get swp work reasonably good for IA64. I don't know of blackbird
> from Reservoir lab. Can you elaborate?
i only get this information from their website, nothing in details.
looks like this also mentioned in wikipedia open64 entry. (you may want
to correct them). 

> The swp from SGI was not well tuned for IA64 (I guess I am the only 
> one involved in this swp through all the phases and transition of ia64
> in open64, i.e. trust me :-))
> 
definitely trust you guys. i am only curious when Reservoir lab
mentioning this and think this is not opensource. I am glad that it is
in there and you guys are supporting this. 

Thanks for your clearifying!

> Sun
> 
> On Tue, Aug 3, 2010 at 9:08 PM, Yonghong Yan <ya...@rice.edu> wrote:
> > concerning IA64, is the software pipeliner from SGI included in open64?
> > I know the the blackbird from Reservoir lab has it. This is the big part
> > of the IA64 story.
> >
> >
> > --
> > Yonghong Yan
> > DH 3051
> > 713-348-5860
> > ya...@rice.edu
> >
> > On Tue, 2010-08-03 at 15:03 -0700, Shin-Ming Liu wrote:
> >> Besides HP and University of Houston, Tsinghua University in Beijing
> >> is very active in OpenMP development.
> >>
> >> - Shin
> >>
> >> On Tue, Aug 3, 2010 at 3:52 AM, Anton Shterenlikht
> >> <me...@bristol.ac.uk> wrote:
> >>         Hi
> >>
> >>         I'm a lecturer in Solid Mechanics with Mech
> >>         Eng Dept at University of Bristol, UK.
> >>         My research interests are in computational
> >>         mechanics.
> >>
> >>         I'm preparing a proposal to EPSRC (Engineering
> >>         and Physical Sciences Research Council - a major
> >>         UK government funding body for engineering,
> >>         including computer science and IT) under
> >>         HPC software development call 2010/2011.
> >>         Here's a link to the description of this call:
> >>         
> >> http://www.epsrc.ac.uk/funding/calls/open/hpcsoftwaredev/Pages/default1.aspx
> >>
> >>         I propose to develop an optimising compiler
> >>         with MPI/OpenMP support for ia64 FreeBSD
> >>         platform. Please see my justification at the end.
> >>
> >>         PathScale (Christopher Bergstrom) expressed
> >>         an interest in my proposal, in principle.
> >>
> >>         NAG (Numerical Algorithms Group, nag.co.uk) - a major
> >>         UK HPC player, who currently provide user support
> >>         on HeCTOR (http://www.hector.ac.uk/), UK national
> >>         supercomputer - have been very supportive so far.
> >>
> >>         I'm writing to ask if Open64 team would be interested,
> >>         in principle, to collaborate on this proposal.
> >>         In any case I'd be very grateful for any feedback.
> >>
> >>
> >>         Justification:
> >>
> >>         ia64 accounts for only 5 system in the top500
> >>         list. This is mainly due to compliers unable
> >>         to generate efficient code for VLIW (EPIC).
> >>         (Of course, there are other issues to do
> >>         with marketing, etc. but this in beyond the point).
> >>
> >>         If such compiler, with MPI/OpenMP support,
> >>         were available, this would
> >>         significantly speed-up HPC on ia64 platform.
> >>
> >>         In terms of scientific outputs  - clearly
> >>         all current HPC codes we use will benefit.
> >>         However, some specific coding guidelines for
> >>         ia64 might be developed to help the compiler
> >>         produce efficient code.
> >>
> >>         A specific engineering application, which
> >>         will be used to benchmark performance
> >>         is a set of multi-scale fracture codes
> >>         we have at Bristol. The codes include
> >>         a finite element part (floating point) and
> >>         a cellular automata part (integer). I'm interested
> >>         in simulating very large models, i.e. using
> >>         large memories, as well as speeding up the
> >>         execution.
> >>
> >>         FreeBSD (or, for that matter *BSD systems)
> >>         represent at the very least a viable alternative
> >>         to linux. Things like better security
> >>         and more predictable and systematic development
> >>         and release schedule, and more permissible BSD
> >>         licence (compared to GPLv3) might make FreeBSD more
> >>         attractive for HPC in future.
> >>         I think having an alternative to linux
> >>         is beneficial to academia and HPC
> >>         industry.
> >>
> >>         many thanks
> >>         anton
> >>
> >>
> >>         --
> >>         Anton Shterenlikht
> >>         Room 2.6, Queen's Building
> >>         Mech Eng Dept
> >>         Bristol University
> >>         University Walk, Bristol BS8 1TR, UK
> >>         Tel: +44 (0)117 331 5944
> >>         Fax: +44 (0)117 929 4423
> >>
> >>         
> >> ------------------------------------------------------------------------------
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> >>         _______________________________________________
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> >>         Open64-devel@lists.sourceforge.net
> >>         https://lists.sourceforge.net/lists/listinfo/open64-devel
> >>
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> >> _______________________________________________ Open64-devel mailing list 
> >> Open64-devel@lists.sourceforge.net 
> >> https://lists.sourceforge.net/lists/listinfo/open64-devel
> >
> >
> >
> > ------------------------------------------------------------------------------
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> > Plug-In Development Kit to bring their C/C++ apps to Palm for a share
> > of $1 Million in cash or HP Products. Visit us here for more details:
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> > _______________________________________________
> > Open64-devel mailing list
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> > https://lists.sourceforge.net/lists/listinfo/open64-devel
> >
> 


-- 
Yonghong Yan
DH 3051
713-348-5860
ya...@rice.edu


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