Re: [Discuss-gnuradio] GRAS time assert error - was Volk error

[Yogesh Dahiya]

the example i was trying on is : gnuradio/grc/examples/simple/variable_config.grc

I commented the assert and rebuild the gras and its working fine with this example.

But my uhd_fft is showing another error now :

Traceback (most recent call last):

  File "/usr/local/bin/uhd_fft", line 341, in <module>

    main ()

  File "/usr/local/bin/uhd_fft", line 337, in main

    app = stdgui2.stdapp(app_top_block, "UHD FFT", nstatus=1)

  File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py", line 38, in __init__

    wx.App.__init__ (self, redirect=False)

  File "/usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode/wx/_core.py", line 7978, in __init__

    self._BootstrapApp()

  File "/usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode/wx/_core.py", line 7552, in _BootstrapApp

    return _core_.PyApp__BootstrapApp(*args, **kwargs)

  File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py", line 42, in OnInit

    self._max_noutput_items)

  File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py", line 64, in __init__

    self.panel = stdpanel (self, self, top_block_maker, max_nouts)

  File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py", line 86, in __init__

    self.top_block = top_block_maker (frame, self, vbox, sys.argv)

  File "/usr/local/bin/uhd_fft", line 125, in __init__

    self.scope.set_callback(fftsink_callback)

AttributeError: 'fft_sink_c' object has no attribute 'set_callback'

On Wed, Jun 12, 2013 at 2:55 AM, Yogesh Dahiya <address@hidden> wrote:

After applying the diff :

name = throttle

i = 0

total_idle_times[i] = 20344984

time_now() = 122002822

_init_time = 1984664495

ASSERT FAIL /home/electron/Downloads/gras/lib/gras_impl/input_buffer_queues.hpp:164

total_idle_times[i] <= (time_now() - _init_time)

terminate called after throwing an instance of 'std::runtime_error'

  what():  ASSERT FAIL total_idle_times[i] <= (time_now() - _init_time)

So it seems there is problem with time function

On Wed, Jun 12, 2013 at 2:00 AM, Yogesh Dahiya <address@hidden> wrote:

I have ubuntu 11.10 32 bit system

output of the unit test is 

Running 1 test case...

t0 1804958425

t1 2805093589

delta_time 1.00014

*** No errors detected

On Wed, Jun 12, 2013 at 1:38 AM, Josh Blum <address@hidden> wrote:

On 06/11/2013 03:55 PM, Yogesh Dahiya wrote:
> Thanks that kind of worked for me it showed the gui for a while but then it
> stopped with following error :
>
>>>> GRAS: The debug asserts are enabled. <<<
> Created default thread pool with 4 threads.
> Using Volk machine: sse4_2_32_orc
> ASSERT FAIL
> /home/electron/Downloads/gras/lib/gras_impl/input_buffer_queues.hpp:156
> total_idle_times[i] <= (time_now() - _init_time)
> terminate called after throwing an instance of 'std::runtime_error'
>   what():  ASSERT FAIL total_idle_times[i] <= (time_now() - _init_time)
>
>

So I dont completely understand the nature of the problem. If you give
me some feedback, I think that its something pretty simple. Possibly an
issuing with using the getclocktime CLOCK_MONOTONIC.

Can you tell me your OS name and version, 32 or 64 bit?

If you pull and rebuild, there is a unit test for the timer stuff, I
wonder what the output verbose is. Can you run this in the build
directory: tests/chrono_time_test_cpp_test.sh

If you apply this diff and rebuild, I think that the additional prints
will be very revealing: http://pastebin.com/xeBHFN5j

-josh


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