Re: [Discuss-gnuradio] Reporting experience of installation from source of GnuRadio-3.7.8

2015-09-19 Thread James Humphries
Hi Daniele / Marcus,

I'll add my experience as well. I have been testing installs of Ubuntu
15.04 in a VMware virtual machine. I limit it to 2GB of RAM. I was using
pybombs to install UHD + GNURadio. Install would halt at a certain point
(no error) every time. Solution was to limit make to 2 threads (pybombs
default is 4). Everything went smoothly from there. I agree that 4GB is
probably a better number for development, though.

-Trip

On Sat, Sep 19, 2015 at 6:07 PM, Marcus Müller 
wrote:

> Hi Daniele,
>
> good point!
> The problem is that the amount of RAM you'd need depends on quite a lot
> of factors, from compiler version over boost dependencies, even when
> running make single-threaded (not as "make -j8" or so).
>
> Generally, 2GB sounds like it'd be too little for development
> workstation usage nowadays, I agree.
>
> Best regards,
> Marcus
> On 18.09.2015 16:12, Daniele wrote:
> > Hi!
> > I just want to share my experience of installing gnuradio-3.7.8 on a PC
> with
> > debian stretch (test version).
> > Initially, the PC was equipped with only 2 GB of RAM and the installation
> > finished with an error. (To be more precise, after performing "cmake
> ../" in
> > the build directory and executing the command "make").
> > After several attempts I gave him back the "make" command to read the
> error
> > messages.
> > Then compile resumed without problems. This suggested to me that could
> be a
> > problem of RAM. Adding another 2 GB of RAM to the same PC everything
> worked
> > properly.
> > I suggest that it would be necessary to point out this requirement in the
> > notes describing the installation process. (I read this item only about
> > those who want to use the DVD with a live distribution containing
> gnuradio).
> >
> > I hope this notes could be useful.
> >
> > Daniele
> >
> >
> > ___
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> > Discuss-gnuradio@gnu.org
> > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
>
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Re: [Discuss-gnuradio] Reporting experience of installation from source of GnuRadio-3.7.8

2015-09-19 Thread Marcus Müller
Hi Daniele,

good point!
The problem is that the amount of RAM you'd need depends on quite a lot
of factors, from compiler version over boost dependencies, even when
running make single-threaded (not as "make -j8" or so).

Generally, 2GB sounds like it'd be too little for development
workstation usage nowadays, I agree.

Best regards,
Marcus
On 18.09.2015 16:12, Daniele wrote:
> Hi!
> I just want to share my experience of installing gnuradio-3.7.8 on a PC with
> debian stretch (test version).
> Initially, the PC was equipped with only 2 GB of RAM and the installation
> finished with an error. (To be more precise, after performing "cmake ../" in
> the build directory and executing the command "make").
> After several attempts I gave him back the "make" command to read the error
> messages.
> Then compile resumed without problems. This suggested to me that could be a
> problem of RAM. Adding another 2 GB of RAM to the same PC everything worked
> properly.
> I suggest that it would be necessary to point out this requirement in the
> notes describing the installation process. (I read this item only about
> those who want to use the DVD with a live distribution containing gnuradio).
>
> I hope this notes could be useful.
>
> Daniele
>
>
> ___
> Discuss-gnuradio mailing list
> Discuss-gnuradio@gnu.org
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio


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[Discuss-gnuradio] ofdm demod could not demodulate

2015-09-19 Thread gnoob16
 

hi this is my ofdm transmitter... the thing here is that the ofdm signal
could not get demodulated at all... the qt frequency sink displays nothing
when connected after the ofdm demodulator...

im using zedboard with the adi fmcomms...

thanks!



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