On Fri, Feb 17, 2012 at 6:04 PM, Nowlan, Sean <sean.now...@gtri.gatech.edu>wrote:
> Don’t know how helpful these are, but here you go.**** > > ** ** > > Sean > Sean, It looks like a couple of functions are failing from the stdout: volk_32fc_s32f_magnitude_16i_a: fail on arch orc volk_32fc_x2_multiply_32fc_a: fail on arch orc These are both the Orc implementations of the functions, which seem to work fine on my Intel processors. I don't have access to an OSX box or an E100, so I can't really test this out. The files you sent me don't (appear to) tell me what the real problem is. We'll need some other brave soul out there who can dig into these issues on the platforms for us. Thanks, Tom > *From:* trond...@trondeau.com [mailto:trond...@trondeau.com] *On Behalf > Of *Tom Rondeau > *Sent:* Friday, February 17, 2012 5:25 PM > *To:* Nowlan, Sean > *Cc:* Nick Foster; discuss-gnuradio@gnu.org > > *Subject:* Re: [Discuss-gnuradio] Using volk in Mac: test report**** > > ** ** > > On Fri, Feb 17, 2012 at 5:11 PM, Nowlan, Sean <sean.now...@gtri.gatech.edu> > wrote:**** > > I built Tom’s safe_align branch on E100 and ran volk_profile. It > segfaulted on “RUN_VOLK_TESTS:volk_32fc_s32fc_multiply_32fc_a. I’ll get a > stack trace for you.**** > > **** > > Sean**** > > ** ** > > Really interesting that it's the same block. Hopefully, it's a single, > simple fix. I'll look into it when you can get me the stack trace.**** > > ** ** > > Thanks for reporting!**** > > Tom**** > > ** ** > > **** > > **** > > *From:* discuss-gnuradio-bounces+sean.nowlan=gtri.gatech....@gnu.org[mailto: > discuss-gnuradio-bounces+sean.nowlan=gtri.gatech....@gnu.org] *On Behalf > Of *Tom Rondeau > *Sent:* Friday, February 17, 2012 2:33 PM > *To:* Nick Foster > *Cc:* discuss-gnuradio@gnu.org > *Subject:* Re: [Discuss-gnuradio] Using volk in Mac: test report**** > > **** > > On Fri, Feb 17, 2012 at 2:30 PM, Nick Foster <n...@ettus.com> wrote:**** > > On Fri, Feb 17, 2012 at 11:20 AM, Carles Fernandez < > carles.fernan...@gmail.com> wrote:**** > > Thanks for the inputs! > > We are interested in determining the best architecture at instantation > time. What would be the best strategy? We though about running the > same operations several times for each architecture, measure the > results and use the fastest one for the processing blocks. Would this > be the right approach?**** > > **** > > Carles,**** > > **** > > Run volk_profile. It does exactly what you said, and writes the results to > ~/.volk/volk_config. Volk reads this file when it is involked (sorry) to > determine which particular function to execute. So all you do is run > volk_profile once on any given machine, and it's optimized.**** > > **** > > --n**** > > **** > > Carles,**** > > This is discussed on the webpage:**** > > http://gnuradio.org/redmine/projects/gnuradio/wiki/volk**** > > **** > > We'll be updating this as things progress with Volk, but the profiler info > is there already.**** > > **** > > Tom**** > > **** > > ** ** >
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