Issues with Using Volk machine: avx_32_mmx_orc when running interference _cancellation.grc file in L

GNU Radio
1

Dear discuss-gnuradio Mailing List,

I tried to run “interference_cancellation.grc” file, located on :
/usr/local/share/gnuradio/examples/trellis/

and got the error messages result as follows :

Using Volk machine: avx_32_mmx_orc
Traceback (most recent call last):
File “tmp/int_cancellation.py”, line 312, in tb =
int_cancellation()
File “tmp/int_cancellation.py”, line 148, in init
self.trellis_viterbi_combined_xx_2 =
trellis.viterbi_combined_cs(trellis.fsm(prefix+“gr-trellis/src/examples/fsm_files/awgn1o2_16.fsm”),
1000, -1, -1, 1,
((1-alpha)**0.51,(1-alpha)**0.51j,(1-alpha)*0.5(-1j),(1-alpha)*0.5(-1)),
digital.TRELLIS_EUCLIDEAN)
File “/usr/local/lib/python2.7/dist-packages/gnuradio/trellis.py”, line
180, in init this = _trellis.new_fsm(*args)
RuntimeError: fsm::fsm(const char *name): file open error

I’m using LINUX Ubuntu 12.10 (32-bit) with Doxygen version 1.8.1.2.

I installed the GNURadio software by using “the build-gnuradio script”
from
http://gnuradio.org/redmine/projects/gnuradio/wiki/InstallingGR

The “int_cancellation.py” and “interference_cancellation.grc” files are
attached on this email.

Kindly need advice to fix this error.

Thanks in advance,

Tantri

2

On Mon, Sep 30, 2013 at 9:49 AM, Tantri A. [email protected]
wrote:

int_cancellation()
File “tmp/int_cancellation.py”, line 148, in init
self.trellis_viterbi_combined_xx_2 =

trellis.viterbi_combined_cs(trellis.fsm(prefix+“gr-trellis/src/examples/fsm_files/awgn1o2_16.fsm”),

1000, -1, -1, 1,
((1-alpha)**0.51,(1-alpha)**0.51j,(1-alpha)*0.5(-1j),(1-alpha)*0.5(-1)),
digital.TRELLIS_EUCLIDEAN)
File “/usr/local/lib/python2.7/dist-packages/gnuradio/trellis.py”, line 180,
in init this = _trellis.new_fsm(*args)
RuntimeError: fsm::fsm(const char *name): file open error

Read the error. This has nothing to do with Volk. It’s trying to open
a file that doesn’t exist or exists in a different path than expected.

Tom

Thanks in advance,

Tantri

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Tom
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