llvm dev - Apr 2015 - [LLVMdev] [RFC] OpenMP offload infrastructure (iteration 2)

Hello everybody!

To continue the original
(http://article.gmane.org/gmane.comp.compilers.llvm.devel/75674)
discussion of offload infrastructure I have an updated document with
more details for your attention.
The document is a consensus of the contributors representing a number
of institutions: ANL, AMD,
IBM, Intel and Texas Instruments.

Our intent is to have a discussion and an approval from the community
on the method we are going
to implement, so when the time to submit patches will come there will
be no surprises.

Thank you,
Sergey Ostanevich
Open Source Compilers
Intel Corporation
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Hi!

Here's an updated version - couple of misprints are fixed. Thank you
to Roel Jordans and Kelvin Li for pointing this out.
I put this on Google drive to avoid the mailing list restrictions,
feel free to complain on the accessibility issues.

http://goo.gl/L1rnKJ

Oh, and please - provide your positive feedback, if you don't see any
mistakes to be fixed. :)

Regards,
Sergey Ostanevich
Open Source Compilers
Intel Corporation

On Wed, Apr 8, 2015 at 7:19 PM, Sergey Ostanevich <sergos.gnu at
gmail.com> wrote:
> Hello everybody!
>
> To continue the original
> (http://article.gmane.org/gmane.comp.compilers.llvm.devel/75674)
> discussion of offload infrastructure I have an updated document with
> more details for your attention.
> The document is a consensus of the contributors representing a number
> of institutions: ANL, AMD,
> IBM, Intel and Texas Instruments.
>
> Our intent is to have a discussion and an approval from the community
> on the method we are going
> to implement, so when the time to submit patches will come there will
> be no surprises.
>
> Thank you,
> Sergey Ostanevich
> Open Source Compilers
> Intel Corporation

Hi Sergey,

Thanks for putting the new version of the document together! I don't see
any other issues. I strongly believe the approach described in the document
is a nice way to get OpenMP offloading support in clang. I plan to start
actively contributing code for this component of the OpenMP implementation
soon.


Thanks again,
Samuel

2015-04-29 11:47 GMT-04:00 Sergey Ostanevich <sergos.gnu at gmail.com>:
> Hi!
>
> Here's an updated version - couple of misprints are fixed. Thank you
> to Roel Jordans and Kelvin Li for pointing this out.
> I put this on Google drive to avoid the mailing list restrictions,
> feel free to complain on the accessibility issues.
>
> http://goo.gl/L1rnKJ
>
> Oh, and please - provide your positive feedback, if you don't see any
> mistakes to be fixed. :)
>
> Regards,
> Sergey Ostanevich
> Open Source Compilers
> Intel Corporation
>
> On Wed, Apr 8, 2015 at 7:19 PM, Sergey Ostanevich <sergos.gnu at
gmail.com>
> wrote:
> > Hello everybody!
> >
> > To continue the original
> > (http://article.gmane.org/gmane.comp.compilers.llvm.devel/75674)
> > discussion of offload infrastructure I have an updated document with
> > more details for your attention.
> > The document is a consensus of the contributors representing a number
> > of institutions: ANL, AMD,
> > IBM, Intel and Texas Instruments.
> >
> > Our intent is to have a discussion and an approval from the community
> > on the method we are going
> > to implement, so when the time to submit patches will come there will
> > be no surprises.
> >
> > Thank you,
> > Sergey Ostanevich
> > Open Source Compilers
> > Intel Corporation
> _______________________________________________
> Openmp-dev mailing list
> Openmp-dev at dcs-maillist2.engr.illinois.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/openmp-dev
>
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Hi Alex,

At the OpenMP review telecon we agreed in going in there and say that the
approach is great and we support that, so we can then go ahead and start
implementing it, regardless of how it is going to look like at the end. We
can still change the interface and compiler as the time goes by if need to.

Regards,
Samuel




From:	Alexandre Eichenberger/Watson/IBM
To:	Samuel F Antao/Watson/IBM at IBMUS
Cc:	Clang Developers List <cfe-dev at cs.uiuc.edu>,
            cfe-dev-bounces at cs.uiuc.edu, "llvmdev at cs.uiuc.edu"
            <llvmdev at cs.uiuc.edu>,
            openmp-dev at dcs-maillist2.engr.illinois.edu, Sergey Ostanevich
            <sergos.gnu at gmail.com>
Date:	04/29/2015 02:32 PM
Subject:	Re: [cfe-dev] [Openmp-dev] [RFC] OpenMP offload infrastructure
            (iteration 2)


Just a head up, but it looks like OpenMP 4.1 will go away of the map of the
pointer as well as the pointee in maps...Since this is going away, we may
want to revisit the interface with this respect. It has not been voted in
yet, but we should know more in 2-3 weeks

Alexandre




From:	Samuel F Antao/Watson/IBM at IBMUS
To:	Sergey Ostanevich <sergos.gnu at gmail.com>
Cc:	openmp-dev at dcs-maillist2.engr.illinois.edu, Clang Developers
            List <cfe-dev at cs.uiuc.edu>, "llvmdev at
cs.uiuc.edu"
            <llvmdev at cs.uiuc.edu>
Date:	04/29/2015 02:19 PM
Subject:	Re: [cfe-dev] [Openmp-dev] [RFC] OpenMP offload infrastructure
            (iteration 2)
Sent by:	cfe-dev-bounces at cs.uiuc.edu



Hi Sergey,

Thanks for putting the new version of the document together! I don't see
any other issues. I strongly believe the approach described in the document
is a nice way to get OpenMP offloading support in clang. I plan to start
actively contributing code for this component of the OpenMP implementation
soon.


Thanks again,
Samuel

2015-04-29 11:47 GMT-04:00 Sergey Ostanevich <sergos.gnu at gmail.com>:
  Hi!

  Here's an updated version - couple of misprints are fixed. Thank you
  to Roel Jordans and Kelvin Li for pointing this out.
  I put this on Google drive to avoid the mailing list restrictions,
  feel free to complain on the accessibility issues.

  http://goo.gl/L1rnKJ

  Oh, and please - provide your positive feedback, if you don't see any
  mistakes to be fixed. :)

  Regards,
  Sergey Ostanevich
  Open Source Compilers
  Intel Corporation

  On Wed, Apr 8, 2015 at 7:19 PM, Sergey Ostanevich <sergos.gnu at
gmail.com>
  wrote:
  > Hello everybody!
  >
  > To continue the original
  > (http://article.gmane.org/gmane.comp.compilers.llvm.devel/75674)
  > discussion of offload infrastructure I have an updated document with
  > more details for your attention.
  > The document is a consensus of the contributors representing a number
  > of institutions: ANL, AMD,
  > IBM, Intel and Texas Instruments.
  >
  > Our intent is to have a discussion and an approval from the community
  > on the method we are going
  > to implement, so when the time to submit patches will come there will
  > be no surprises.
  >
  > Thank you,
  > Sergey Ostanevich
  > Open Source Compilers
  > Intel Corporation
  _______________________________________________
  Openmp-dev mailing list
  Openmp-dev at dcs-maillist2.engr.illinois.edu
  http://lists.cs.uiuc.edu/mailman/listinfo/openmp-dev
_______________________________________________
cfe-dev mailing list
cfe-dev at cs.uiuc.edu
http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev

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Hi Sergey,

Thanks for continuing to work on this. I'm listed as a co-author, and so
perhaps this is obvious, but I feel this is an important capability for
LLVM/Clang to offer, and will be important to many HPC users. I look forward to
patches in this area.

 -Hal

----- Original Message -----
> From: "Sergey Ostanevich" <sergos.gnu at gmail.com>
> To: llvmdev at cs.uiuc.edu, cfe-dev at cs.uiuc.edu, openmp-dev at
dcs-maillist2.engr.illinois.edu
> Sent: Wednesday, April 29, 2015 10:47:45 AM
> Subject: Re: [Openmp-dev] [RFC] OpenMP offload infrastructure (iteration 2)
> 
> Hi!
> 
> Here's an updated version - couple of misprints are fixed. Thank you
> to Roel Jordans and Kelvin Li for pointing this out.
> I put this on Google drive to avoid the mailing list restrictions,
> feel free to complain on the accessibility issues.
> 
> http://goo.gl/L1rnKJ
> 
> Oh, and please - provide your positive feedback, if you don't see any
> mistakes to be fixed. :)
> 
> Regards,
> Sergey Ostanevich
> Open Source Compilers
> Intel Corporation
> 
> On Wed, Apr 8, 2015 at 7:19 PM, Sergey Ostanevich
> <sergos.gnu at gmail.com> wrote:
> > Hello everybody!
> >
> > To continue the original
> > (http://article.gmane.org/gmane.comp.compilers.llvm.devel/75674)
> > discussion of offload infrastructure I have an updated document
> > with
> > more details for your attention.
> > The document is a consensus of the contributors representing a
> > number
> > of institutions: ANL, AMD,
> > IBM, Intel and Texas Instruments.
> >
> > Our intent is to have a discussion and an approval from the
> > community
> > on the method we are going
> > to implement, so when the time to submit patches will come there
> > will
> > be no surprises.
> >
> > Thank you,
> > Sergey Ostanevich
> > Open Source Compilers
> > Intel Corporation
> _______________________________________________
> Openmp-dev mailing list
> Openmp-dev at dcs-maillist2.engr.illinois.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/openmp-dev
> 
-- 
Hal Finkel
Assistant Computational Scientist
Leadership Computing Facility
Argonne National Laboratory