Re: [Discuss-gnuradio] gr_fir_fff: using 3DNow! core dump

[Sid Boyce]

On 21/03/13 13:14, Tom Rondeau wrote:
> On Wed, Mar 20, 2013 at 10:10 PM, Sid Boyce <address@hidden> wrote:
> > On 20/03/13 23:50, Tom Rondeau wrote:
> > > On Wed, Mar 20, 2013 at 10:58 AM, Sid Boyce <address@hidden>
> > > wrote:
> > > > On 20/03/13 13:08, Tom Rondeau wrote:
> > > > > On Tue, Mar 19, 2013 at 9:20 PM, Sid Boyce <address@hidden>
> > > > > wrote:
> > > > > > I have a program that uses gnuradio to work with a HiQSDR.
> > > > > >
> > > > > > The first time I fired up qsdr it worked.
> > > > > > Closing it down and re-opening later I got the error. A reboot of the
> > > > > > system
> > > > > > didn't solve it.
> > > > > >
> > > > > > $ qsdr
> > > > > > starting server
> > > > > > Using Volk machine: sse4_a_64
> > > > > > > > > gr_fir_fff: using 3DNow!
> > > > > > terminate called after throwing an instance of 'std::runtime_error'
> > > > > >      what():  unpaired unlock() call
> > > > > > Aborted (core dumped)
> > > > > > 73 ... Sid.
> > > > >
> > > > > Sid,
> > > > >
> > > > > What version of GNU Radio are you using for this? You should try to
> > > > > pull in the filter from the filter module instead of from gr:
> > > > >
> > > > > from gnuradio import filter
> > > > > fir = filter.fir_filter_ccf(decim, taps)
> > > > > ....
> > > > >
> > > > > Also, what is your processor?
> > > > >
> > > > > Tom
> > > > This is the output from the openSUSE boxes and the CPU flags which don't
> > > > include sse4_a.
> > > > Later I'll try rebuilding gnuradio with "-msse3" to see if that helps.
> > > > # qsdr
> > > > starting server
> > > > gri_fftw: can't import wisdom from /root/.gr_fftw_wisdom
> > > > Using Volk machine: avx_64_mmx_orc
> > > > > > > gr_fir_fff: using SSE
> > > > connection from  "127.0.0.1"
> > > > TCP: conneced
> > > > > > > gr_fir_ccc: using SSE
> > > > > > > gr_fir_ccf: using SSE
> > > > > > > gr_fir_fcc: gr_fir_fcc: using SSE
> > > > flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
> > > > mca
> > > > cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt
> > > > pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid
> > > > aperfmperf pni pclmulqdq monitor ssse3 cx16 sse4_1 sse4_2 popcnt aes
> > > > xsave
> > > > avx lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse
> > > > 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 nodeid_msr topoext
> > > > perfctr_core perfctr_nb arat cpb hw_pstate npt lbrv svm_lock nrip_save
> > > > tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold
> > > >
> > > > 73 ... Sid.
> > > >
> > > > --
> > > > Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot
> > > > Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support
> > > > Senior Staff Specialist, Cricket Coach
> > > > Microsoft Windows Free Zone - Linux used for all Computing Tasks
> > > Sid,
> > >
> > > Have you tried using the filters out of the filter module, yet? Those
> > > filters use VOLK for SIMD instead of the hand-crafted stuff that in
> > > the gr filters. That might help. Besides which, we're removing those
> > > filters, so moving to the new filter module will keep you more
> > > compatible as we go forward.
> > >
> > > Tom
> > Thanks Tom,
> > The qsdr design is not mine.
> > I'll pass this info on to the author.
> >
> > 73 ... Sid.
> Can't you change the code in qsdr yourself? If it's based on GNU
> Radio, you should have the source code and making this change is
> pretty trivial (the interface to the filter functions is the same; you
> just get them from a different module).
>
> Tom
OK Tom,
I'll have a check.
73 ... Sid.

--
Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot
Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support
Senior Staff Specialist, Cricket Coach
Microsoft Windows Free Zone - Linux used for all Computing Tasks