Shan and I are going to sit down and rebuild our tool chain (a mix of crosstool, linux-from-scratch, and Xilinx patches) next week. Our aim is to quantify the gains/losses of frequency versus hardware acceleration since we have several large scientific apps we plan to run. Like he said, we're hoping to have a handle on the best approach over the next couple of weeks.
Ron > My understanding is that with the fpu on the ppc405 (not ppc440), the > processor clock rate had to be reduced for the fpu to work. This ended > up negating much of the performance benefits of using the fpu. > > I don't know the specifics offhand, but Xilinx answer records can be > searched. Hopefully I'm wrong, and there can still be a benefit to using > the ppc405 fpu. > > - John > > > On Thu, 2008-05-22 at 19:06 -0400, David H. Lynch Jr. wrote: > > Were the issues associated with getting the Xilinx Floating point APU > > working with Linux completely resolved ? > > Is there a git tree or patch collection with the appropriate patches > > etc ? > > > > > > > _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
