On Wed, Aug 17, 2011 at 8:48 AM, Marcus Müller
<address@hidden> wrote:
Hi Marcus M (cool name, actually),
gr_complex is an STL complex<float>, so you won't need the complete GR core to use it:
gnuradio-core/src/lib/runtime/gr_complex.h:typedef std::complex<float> gr_complex;
gri_fft requires only gr_complex (see above) and gr_sys_paths, which is essentially replaceable by
string literals. (and boost filesystem&threads and fftw of course, but those are not part of GR)
By the way: You'll be benchmarking FFTW (float implementation) complex2real fft, why would you want
to use it wrapped in gri_fft? Using FFTW is -after all- three lines of code, using the benchmarking
functions one line more.
I actually wanted to test my gnuradio block that performs acquisition of DSSS signals. As I am not sure how gprof works in gnuradio I thought i will use the same classes that I used for my block and test the block using a test code outside of gnuradio while retaining everything 'gnuradio' in it. I didn't want to change the code as I suspect that may result in performance difference.
I use gri_fft in my block so that I can have the block resemble native gnuradio code. I will use fftw and if it improves performance then I will use that instead of the gri_fft wrapper.
Thanks everybody.
Hope this was helpful,
greetings
Marcus Müller
Am 17.08.2011 13:03, schrieb Alexandru Csete:
On Wed, Aug 17, 2011 at 5:08 AM, Marcus M<address@hidden> wrote:
Actually I wanted to profile some classes that I wrote for my gnuradio
application. In these classes I use gr_complex and the gri_fftw class. As I
do not know how to use gprof in a gnuradio application I thought I will use
the classes outside of gnuradio to run the profile tests. So that's why I
want to link the gr_complex and gri_fftw in the test application.
Hi Marcus,
Both are in the gnuradio-core package and you can use pkg-config to
get the appropriate flags:
pkg-config --libs gnuradio-core
You can use the above directly in the linker command by surrounding it
with back-quotes(?)
`pkg-config --libs gnuradio-core`
Alex
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