Re: [ViennaCL-devel] Enabling integer types in PyViennaCL
Karl Rupp writes: > This is now fixed. You should be able to instantiate the basic types > with char, uchar, short, ushort as well. So far I have explicitly tested > this only with vector<>, though. Excellent. I'll try and get this enabled in the next couple of days, and then have my test routines iterate over more numeric types, and we'll see what's thrown up. My priority at the moment though is getting a Debian package built -- it's remarkably fiddly and ill-documented, but I hope to have something ready by the end of the week. Best, Toby -- October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60134791&iu=/4140/ostg.clktrk ___ ViennaCL-devel mailing list ViennaCL-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/viennacl-devel
Re: [ViennaCL-devel] Enabling integer types in PyViennaCL
Hi Toby, > I get a lot of errors like the below when I enable T = char (or other > integer numeric types) in PyViennaCL. (...) This is now fixed. You should be able to instantiate the basic types with char, uchar, short, ushort as well. So far I have explicitly tested this only with vector<>, though. Best regards, Karli -- October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60134791&iu=/4140/ostg.clktrk ___ ViennaCL-devel mailing list ViennaCL-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/viennacl-devel
Re: [ViennaCL-devel] Enabling integer types in PyViennaCL
Hi Toby, > I get a lot of errors like the below when I enable T = char (or other > integer numeric types) in PyViennaCL. The error always comes down to the > "request for member 'handle' in 'val'". Previously, it was in the > context of arithmetical functions like addition or element_pow, but here > it seems to be in the context of the copy constructor. I'm not sure why; > the code in question is: There are tests for viennacl::vector and viennacl::vector checking the full set of reasonable operations. Similar for matrix<>. I haven't checked vector and vector explicitly yet, as they require some work in the tests to avoid overflows. > I wanted to enable integer types for pencils-down, hoping that all I'd > have to do is add a macro describing the class, but it might be more > than I can fit in. There are still a lot of technical difficulties in supporting arbitrary combinations of different integer types. One of them is that pow() does not support integers in OpenCL. I suggest that for the initial release you disable integers per default. Best regards, Karli -- LIMITED TIME SALE - Full Year of Microsoft Training For Just $49.99! 1,500+ hours of tutorials including VisualStudio 2012, Windows 8, SharePoint 2013, SQL 2012, MVC 4, more. BEST VALUE: New Multi-Library Power Pack includes Mobile, Cloud, Java, and UX Design. Lowest price ever! Ends 9/20/13. http://pubads.g.doubleclick.net/gampad/clk?id=58041151&iu=/4140/ostg.clktrk ___ ViennaCL-devel mailing list ViennaCL-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/viennacl-devel
Re: [ViennaCL-devel] Enabling integer types in PyViennaCL
Hey Toby! As far as I know there is only partial support for cl_int only. The reason behind is that each scalartype size requires hand-tuning... loading 8bit by thread is extremely inefficient whether it is on GPU or CPU... The kernel generator will probably be able to handle all these case when it is more mature. On a side note, I don't really know how the compiler handles : long += int*int; long += char*char; float += char*char; But I doubt that it can be translated efficiently (ie one cycle for this operation), which is likely to ruin all of our compute bound kernels ... GPUs are really designed for floating point computations. I also think the use of integers/chars in the field of numerical computing is fairly rare, except for permutations and cryptography, but I think vector::operator[](vector const & index) is on the road. Philippe 2013/9/19 Toby St Clere Smithe > Toby St Clere Smithe > writes: > > I get a lot of errors like the below when I enable T = char (or other > > integer numeric types) in PyViennaCL. The error always comes down to the > > "request for member 'handle' in 'val'". Previously, it was in the > > context of arithmetical functions like addition or element_pow, but here > > it seems to be in the context of the copy constructor. I'm not sure why; > > the code in question is: > > ... > > (fyi) I get the same error trying to find the matrix transpose with an > integer scalar type, so I might just leave integer types disabled for > now! > > Cheers, > > Toby > > > > -- > LIMITED TIME SALE - Full Year of Microsoft Training For Just $49.99! > 1,500+ hours of tutorials including VisualStudio 2012, Windows 8, > SharePoint > 2013, SQL 2012, MVC 4, more. BEST VALUE: New Multi-Library Power Pack > includes > Mobile, Cloud, Java, and UX Design. Lowest price ever! Ends 9/20/13. > http://pubads.g.doubleclick.net/gampad/clk?id=58041151&iu=/4140/ostg.clktrk > ___ > ViennaCL-devel mailing list > ViennaCL-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/viennacl-devel > -- LIMITED TIME SALE - Full Year of Microsoft Training For Just $49.99! 1,500+ hours of tutorials including VisualStudio 2012, Windows 8, SharePoint 2013, SQL 2012, MVC 4, more. BEST VALUE: New Multi-Library Power Pack includes Mobile, Cloud, Java, and UX Design. Lowest price ever! Ends 9/20/13. http://pubads.g.doubleclick.net/gampad/clk?id=58041151&iu=/4140/ostg.clktrk___ ViennaCL-devel mailing list ViennaCL-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/viennacl-devel
Re: [ViennaCL-devel] Enabling integer types in PyViennaCL
Toby St Clere Smithe writes: > I get a lot of errors like the below when I enable T = char (or other > integer numeric types) in PyViennaCL. The error always comes down to the > "request for member 'handle' in 'val'". Previously, it was in the > context of arithmetical functions like addition or element_pow, but here > it seems to be in the context of the copy constructor. I'm not sure why; > the code in question is: ... (fyi) I get the same error trying to find the matrix transpose with an integer scalar type, so I might just leave integer types disabled for now! Cheers, Toby -- LIMITED TIME SALE - Full Year of Microsoft Training For Just $49.99! 1,500+ hours of tutorials including VisualStudio 2012, Windows 8, SharePoint 2013, SQL 2012, MVC 4, more. BEST VALUE: New Multi-Library Power Pack includes Mobile, Cloud, Java, and UX Design. Lowest price ever! Ends 9/20/13. http://pubads.g.doubleclick.net/gampad/clk?id=58041151&iu=/4140/ostg.clktrk ___ ViennaCL-devel mailing list ViennaCL-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/viennacl-devel
