On Tue, Sep 30, 2008 at 02:03:14PM -0400, Philip Balister wrote: > > This is great. What we've been thinking about is building a library > > of SIMD accelerated primitives, along the lines of Intel's Integrated > > Performance Primitives. The crucial differences would be: free > > software (GPLv3); support for SSE, SSE2, SSE3, Altivec and Cell SPE > > instruction sets. > > Do you mind adding NEON to this list? NEON is a SIMD unit on ARM > Cortex-A8 processors. Information on NEON instructions is at > http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0204h/Bcfjicfj.html. > Sorry it si the superseded link, I'm too lazy to find the current one > :)
NEON's fine by me, as long as you're doing the work :-) > > Our working title for this is the "Generic Performance Primtives" (GPP). > > > > One unresolved issue is what code to start with. We need a framework > > that provides for reference implementations, QA, testing all argument > > alignments, correctness, performance, etc; runtime dispatch based on > > the equivalent of cpuid; can be built as both shared and static > > libraries (need static on the SPE). > > > > The basic idea (for the user visible routines) would be to start with > > the well thought out API described in Volume 1 (Signal Processing) of > > the IPP docs, peforming a s/ipp/gpp/g. > > > > > > http://softwarecommunity.intel.com/isn/downloads/softwareproducts/pdfs/346499.pdf > > > > > > http://softwarecommunity.intel.com/isn/downloads/softwareproducts/pdfs/346532_userguide_win_ia32.pdf > > > > > > Two possible starting points are: > > > > liboil http://liboil.sourceforge.net (currently x86, x86-64 and > > PPC) > > liboil is used by a number of desktop programs, spending time on this > would be a win for me :) The issues I see with it is that there's currently no support for complex-<anything> in the framework, and that the intel function naming convention doesn't map well (at all?) into the liboil framework. Eric _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
