On Mon, Oct 17, 2011 at 12:54 PM, Josh Blum
<address@hidden> wrote:
On 10/17/2011 12:34 PM, Jason Bonior wrote:
> Today we installed the git versions of grblock, grc, gnuradio, and uhd on a
> system with Debian 6.0.3, 64-bit (also installed this morning). When trying
> to run the demo files we receive the following errors:
>
> address@hidden:~$ /usr/local/share/grblock/
> examples/adder_demo.py
> handler caught exception: Unknown exception
> Traceback (most recent call last):
> File "/usr/local/lib/python2.6/dist-packages/grblock/gateway.py", line 52,
> in handle
> try: self._callback()
> File "/usr/local/lib/python2.6/dist-packages/grblock/gateway.py", line 120,
> in __grblock_handle
> [self.__message.work_args.ninput_items]*len(self.__in_sig),
> File "/usr/local/lib/python2.6/dist-packages/grblock/gateway.py", line 41,
> in pointers_to_ndarrays
> return [pointer_to_ndarray(*args) for args in zip(addrs, dtypes, nitems)]
> File
> "/usr/local/lib/python2.6/dist-packages/gnuradio/gr/gnuradio_core_hier.py",
> line 118, in next
> return _gnuradio_core_hier.SwigPyIterator_next(self)
> RuntimeError: Unknown exception
> thread[thread-per-block[2]: <gr_block add 2 f32 (4)>]: caught unrecognized
> exception
> ^Cexcepted (1, 5, 9, 13, 17)
> actual ()
> handler caught exception: Unknown exception
> Traceback (most recent call last):
> File "/usr/local/lib/python2.6/dist-packages/grblock/gateway.py", line 52,
> in handle
> try: self._callback()
> File "/usr/local/lib/python2.6/dist-packages/grblock/gateway.py", line 120,
> in __grblock_handle
> [self.__message.work_args.ninput_items]*len(self.__in_sig),
> File "/usr/local/lib/python2.6/dist-packages/grblock/gateway.py", line 41,
> in pointers_to_ndarrays
> return [pointer_to_ndarray(*args) for args in zip(addrs, dtypes, nitems)]
> File
> "/usr/local/lib/python2.6/dist-packages/gnuradio/gr/gnuradio_core_hier.py",
> line 118, in next
> return _gnuradio_core_hier.SwigPyIterator_next(self)
> RuntimeError: Unknown exception
> thread[thread-per-block[2]: <gr_block add 2 fc32 (10)>]: caught unrecognized
> exception
> ^Cexcepted (1, 5j, 9, 13j, 17)
> actual ()
> address@hidden:~$
>
The traceback is a bit unclear. I think the problem is happening in
pointer_to_ndarray. Can you put some prints in gateway.py and find out
what line is dying?
pointer_to_ndarray is the darkest magic used in grblock. Perhaps
something differers between numpy versions. I have only tested on ubuntu
11.04 and 11.10
https://github.com/guruofquality/grblock/blob/master/python/gateway.py#L24
grblock certainly needs to be tested across wider audience. I am glad
you are giving it a try. I am ccing gr discuss. More eyes and testers
cant hurt.
So if someone is bored or has 5 mins, can you compile this on your
system and let me know if the examples work for you?
https://github.com/guruofquality/grblock
_josh
We don't normally pass numpy arrays through Swig to GNU Radio, which could be your problem. Try passing it as you_ndarray.tolist() and see if that works.
Tom