# Flow graph fails when the complexity increased (without USRP device)

**URL:** <https://www.ruby-forum.com/t/flow-graph-fails-when-the-complexity-increased-without-usrp-device/239720>\
**Category:** GNU Radio\
**Created:** [March 11, 2014, 10:15pm UTC](https://www.ruby-forum.com/t/flow-graph-fails-when-the-complexity-increased-without-usrp-device/239720 "2014-03-11T22:15:43Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![musicdenotation](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ea666f/32.png) [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\
**Post date:** [March 11, 2014, 10:15pm UTC](https://www.ruby-forum.com/t/flow-graph-fails-when-the-complexity-increased-without-usrp-device/239720/1 "2014-03-11T22:15:43Z")

</div>

Hi all,

I am using GNURADIO 3.7, Ubuntu 13.04

I want to generate dictionary elements using flow graph.

dvbt\_dictionary block connects to FFT block it connects  
to dvbt\_dictionary2 and again after FFT block it connects  
to dvbt\_dictionary3.  
dvbt\_dictionary2.cc saves files as a dictionary elements.

The problem is that when I increase the complexity (generate more  
elements) it does not work (For example when I want to generate more  
than 100 elements).  
I attach three .cc files and flow graph.

Can someone help me?