I'm running Michael Buettner's RFID program. https://www.cgran.org/wiki/Gen2
This program has many blocks: rx --> matched_filt --> command_gate --> agc --> to_mag --> to_mag, center --> mm --> tag_decoder --> self.reader --> amp --> to_complex --> tx I'm always using the STS scheduler because that's the default configuration to run Buettner's program. Before running the program, we specify GR_SCHEDULER=STS. Are there drawbacks of using STS scheduler? If the amount of data that goes into the tag_decoder module is smaller than 1000 bits, the whole program runs correctly because tag_decoder module is scheduled several times to process all the incoming data. If the amount of data is over 1000 bits, the tag_decoder module is scheduled several times to process the first 1000 bits. However, the tag_decoder module never gets a chance to be scheduled to process the rest of incoming data. Instead of tag_decoder module, only self.reader module is always scheduled at that point. On Tue, Aug 20, 2013 at 11:05 AM, Tom Rondeau <t...@trondeau.com> wrote: > On Tue, Aug 20, 2013 at 10:25 AM, Pengyu Zhang <zhange...@gmail.com> > wrote: > > Hi, > > > > I build a signal processing pipeline on USRP: RX --> decoder --> protocol > > --> TX. I used STS scheduler to schedule those signal processing blocks. > > When the amount of data that goes into the decoder module is larger than > a > > fixed number, the decoder thread is scheduled to run for a while, decodes > > the initial part of the incoming data, and is not scheduled anymore > before > > it finishes processing the rest of the incoming data. > > > > I'm a bit surprised to observe that one thread is not always scheduled by > > the scheduler. Does anyone have some ideas on how to tackle this problem? > > Thanks. > > > > Pengyu > > > I don't follow. How many threads are run? You said 'not always' but > that doesn't make any sense. Are you sure it's not consistent between > runs? Are you sure you are always using the STS scheduler (and if so, > why?)? > > -- > Tom > Visit us at GRCon13 Oct. 1 - 4 > http://www.trondeau.com/grcon13 >
_______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
