Re: [Discuss-gnuradio] why alignment feature work only when output_multiple not set

Hi Marcus, Sorry for responding lately. I got it, thanks your reply 在 2015年06月20日 23:05, Marcus Müller 写道: But I don't know why do it can increase parallelism? Assume the following situation file_source-> multiply_const -> file_sink assume the complete file fits into the buffer, and n_best w

Re: [Discuss-gnuradio] why alignment feature work only when output_multiple not set

> But I don't know why do it can increase parallelism? Assume the following situation file_source-> multiply_const -> file_sink assume the complete file fits into the buffer, and n_best wouldn't be buffer/2, then file_source would read the whole file, and write it to the buffer. Only then, multi

Re: [Discuss-gnuradio] why alignment feature work only when output_multiple not set

Hi Tom, Johnathan, Thanks your reply. Hi Marcus, Seems your conclusion is make sense. I think it might relate with buffer size which was allocated in "flat_flowgraph.cc / allocate_buffer" // *2 because we're now only filling them 1/2 way in order to // increase the available paralleli

Re: [Discuss-gnuradio] why alignment feature work only when output_multiple not set

On Fri, Jun 19, 2015 at 6:09 AM, Tom Rondeau wrote: > On Thu, Jun 18, 2015 at 8:29 AM, Tiankun Hu > wrote: > >> Hi Tom, >> Thanks your reply, I have another question, in function >> "min_available_space" why buffer_size/2 is best ? >> > > I'm not really sure. That's a question for Eric. > The

Re: [Discuss-gnuradio] why alignment feature work only when output_multiple not set

Hi Tiankun, Hi Tom, I vaguely remember me wondering about that line. It comes from the single threaded scheduler; back then, wondering, I came to the conclusion that for the STS that it's probably been considered useful to half the the "buffer usage ripple" that could occur when blocks started to

Re: [Discuss-gnuradio] why alignment feature work only when output_multiple not set

On Thu, Jun 18, 2015 at 8:29 AM, Tiankun Hu wrote: > Hi Tom, > Thanks your reply, I have another question, in function > "min_available_space" why buffer_size/2 is best ? > I'm not really sure. That's a question for Eric. What happens when you change it? How does it affect performance? Tom

Re: [Discuss-gnuradio] why alignment feature work only when output_multiple not set

Hi Tom, Thanks your reply, I have another question, in function "min_available_space" why buffer_size/2 is best ? 在 2015年06月16日 21:31, Tom Rondeau 写道: On Tue, Jun 16, 2015 at 8:57 AM, Tiankun Hu > wrote: Hi, After go through the block_executor.cc, I foun

Re: [Discuss-gnuradio] why alignment feature work only when output_multiple not set

On Tue, Jun 16, 2015 at 8:57 AM, Tiankun Hu wrote: > Hi, > After go through the block_executor.cc, I found alignment feature work > only when output_multiple not set, why them can not work at the same time? > > -- > Thanks > Tiankun > Because they are competing objectives. The alignment tries to

[Discuss-gnuradio] why alignment feature work only when output_multiple not set

Hi, After go through the block_executor.cc, I found alignment feature work only when output_multiple not set, why them can not work at the same time? -- Thanks Tiankun ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org