similar to: [LLVMdev] PTX backend, BSD license

Hi! >>> Hi there, >>> >>> I have a working prototype of PTX backend, and I would like to >>> upstream it if possible. This backend is implemented by LLVM's target >>> independent code generator framework; I think this will make it easier >>> to maintain. >>> >> How does this relate, at all, to the backend here:

Helge Rhodin <helge.rhodin at alice-dsl.net> writes: >> But I didn't study their code thoroughly, so I might be wrong about this. >> > Yes, we don't use the target-independent code generator and the > backend is based on the CBackend. We decided to not use the code > generator because PTX code is also an intermediate language. The > graphics driver

Hi, Chris Lattner wrote: > On Aug 10, 2010, at 12:05 PM, David A. Greene wrote: > > >>> The PTXBackend probably needs more test cases. I'm currently covering a >>> lot of LLVM and PTX features but the test suite is still not exhaustive. >>> I took the coding standards into account and the license is now >>> compatible to LLVM. I don't

Hi, The PTX backend we developed (CBackend approach, does not use the target independent code generator) is already more advanced. An older version is published here: http://sourceforge.net/projects/llvmptxbackend/ We recently eliminated a bug which increased the number of required registers per thread. Surprisingly, without that bug the generated code is already comparable to code generated

On Tue, 10 Aug 2010 14:21:43 -0500 "Villmow, Micah" <Micah.Villmow at amd.com> wrote: > > > -----Original Message----- > > From: llvmdev-bounces at cs.uiuc.edu > > [mailto:llvmdev-bounces at cs.uiuc.edu] On Behalf Of David A. Greene > > Sent: Tuesday, August 10, 2010 12:05 PM > > To: Helge Rhodin > > Cc: llvmdev at cs.uiuc.edu > >

> -----Original Message----- > From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] > On Behalf Of David A. Greene > Sent: Tuesday, August 10, 2010 12:05 PM > To: Helge Rhodin > Cc: llvmdev at cs.uiuc.edu > Subject: Re: [LLVMdev] PTX backend, BSD license > > Helge Rhodin <helge.rhodin at alice-dsl.net> writes: > > >> But I

Hi David, Thanks for asking. On Mon, Aug 9, 2010 at 3:25 PM, David A. Greene <greened at obbligato.org> wrote: > Che-Liang Chiou <clchiou at gmail.com> writes: > >> Hi there, >> >> I have a working prototype of PTX backend, and I would like to >> upstream it if possible.  This backend is implemented by LLVM's target >> independent code

On Aug 10, 2010, at 12:05 PM, David A. Greene wrote: >> >> The PTXBackend probably needs more test cases. I'm currently covering a >> lot of LLVM and PTX features but the test suite is still not exhaustive. >> I took the coding standards into account and the license is now >> compatible to LLVM. I don't know what else needs to be done? > > Checking

Hey everybody, good news for everyone interested in the PTX backend: We decided to release the current source code under the GPL - you can find the latest tarball here: http://www.prog.uni-saarland.de/projects/anysl You will find the README in the attachment, which should hopefully answer a lot of questions concerning the implementation and the current status. If you have further questions,

Hi everyone, I downloaded the latest version of LLVM PTX backend from http://www.prog.uni-saarland.de/projects/anysl and made the required changes to all the files mentioned in the README. But I get the following error when I compile it. llvm[3]: Compiling PTXBackend.cpp for Release build In file included from PTXBackend.h:70:0, from PTXBackend.cpp:36: PTXPasses.h: In constructor

Hello , How to execute a cuda program using llvm? More specifically, nvcc produces some temporary files during its compilation. I want to convert the .cu.cpp to .ll format and optimize it. The .cu.cpp file contains typedefs and enums used by cuda runtime and also the host part of the code and the ptx file contains the kernel definition. How can i run the program after optimization? Will Rhodin

Hi I am interested to know: are there are any LLVM targets in the works for Nvidia's PTX ISA? Also if anyone knows about Ocelot (a project done by some students at my school): it does the opposite of what I am trying to do (translates PTX to LLVM IR to run Cuda kernels on the CPU). Thanks in advance. -Puyan

On Mar 26, 2010, at 11:28 PM, Puyan Lotfi wrote: > Hi > > I am interested to know: are there are any LLVM targets in the works > for Nvidia's PTX ISA? > > Also if anyone knows about Ocelot (a project done by some students at > my school): it does the opposite of what I am trying to do (translates > PTX to LLVM IR to run Cuda kernels on the CPU). I don't know of

Hi Justin, I am upstreaming the PTX backend. My plan is to have a working prototype (that mean you may compile non-trivial code with some workarounds) by the end of this year or by January 2011. I hope I could catch up next release of LLVM (version 2.9), so I will adjust my plan according to the release schedule once it is announced. Regards, Che-Liang On Wed, Oct 6, 2010 at 11:16 PM, Justin

I read on the archives that a PTX back-end was discussed around August and I see that some initial code has been checked into LLVM trunk. What is the status of this project? Is it being actively worked on? I am ultimately interested in using LLVM for GPU code optimization/generation and am very interested in this particular project. -- Thanks, Justin Holewinski -------------- next part

> -----Original Message----- > From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] > On Behalf Of David A. Greene > Sent: Tuesday, August 10, 2010 12:02 PM > To: Che-Liang Chiou > Cc: llvmdev at cs.uiuc.edu > Subject: Re: [LLVMdev] Upstream PTX backend that uses target > independent code generator if possible > > Che-Liang Chiou <clchiou

Che-Liang Chiou <clchiou at gmail.com> writes: > Hi there, > > I have a working prototype of PTX backend, and I would like to > upstream it if possible. This backend is implemented by LLVM's target > independent code generator framework; I think this will make it easier > to maintain. How does this relate, at all, to the backend here:

Hi Adarsh, to my knowledge there is no publicly available CUDA-Frontend for LLVM yet. The work of Helge Rhodin you mentioned is on the backend-side: It allows to generate PTX code from LLVM IR. It is still being maintained, although I think the currently available source code is a little outdated. There is also a PTX backend in the current version of LLVM that makes use of LLVM's

Jochen Wilhelmy schrieb: >>>>> Hi! >>>>> >>>>> The following thoughts about the llvm architecture I'd like to share >>>>> with you >>>>> (from the perspective of a user): >>>>> >>>>> - If a backend has no vector support, then I wonder why there is no >>>>> de-vectorization

To the list:<br /> <br /> Tons of LLVM research is being done that is damn near worthless to anyone but the person who did it because the team doesn't publish supporting code or even describe at a high level description of the algorithms they're using. And the excuse is always, ALWAYS the same: "we need to clean up the code before we release it."<br /> <br