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Re: [Discuss-gnuradio] Flow graph stops after 45/60 minutes

From: Marcus Müller
Subject: Re: [Discuss-gnuradio] Flow graph stops after 45/60 minutes
Date: Wed, 15 Oct 2014 19:24:52 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0

Hi Dominique,

please always respond to the list, not to people individually.

On 15.10.2014 18:44, Dominique Guelord Ingala wrote:
> Hi Marcus,
> I'm sorry, I didn't understand what you said regarding how to reply to digest.
Simply don't hit the reply button when you are reading a digest mail.
Usually, you reply to single messages or open up a new thread, so that
people know what you are referring to. Also, you did not change the
subject of your mail, which made understanding the context even harder.
> Yes  I'm expecting a big data. But normally I reduce the sample rate before 
> File Sink.
> My File Sink writes complex data into hard drive. I have 130 GB available in 
> my HDD(Fat32)
Ha! FAT32 doesn't do >4GB files. It's the worst filesystem since FAT12
and FAT16, seriously.
So, FAT32 and big data don't coexist. If you're using windows, use NTFS.
If you're on Mac OS X, use the default formatter for disks, should be HFS+.
If you're on Linux, use ext2, ext3, ext4, reiserfs, xfs, btrfs, whatever.
> It's to provide more details ... The grc just stops only when File Sink, no 
> error message. That's why I have difficulty in providing more details.
> I'm running grc v3.5.1. 
That is an important piece of information.
It means you're using a version of GNU Radio that is very outdated.
If there's nothing binding you to that specific version, you should
definitely update -- development is so much more fun with all the tools
that were introduced since then (gr_modtool!), and a lot of problems
were fixed.
I'd personally recommend switching to the current GNU Radio 3.7.X, since
it's much cleaner and its API is easier to use, in my opininion. Also,
all tutorials are 3.7-based by now. 3.6.5 will look closer to what
you're used to, but it's only around for legacy reasons.


> Thanks.
> Dominique 
> ________________________________
>  From:  Marcus Müller <address@hidden>; 
> To:  <address@hidden>;  <address@hidden>; 
> Subject:  Flow graph stops after 45/60 minutes (was: Re: [Discuss-gnuradio] 
> Discuss-gnuradio Digest, Vol 142, Issue 15) 
> Sent:  Tue, Oct 14, 2014 5:37:40 PM 
> Hi Dominique,
> please, please, please, don't respond to digests, leaving the
>     subject line unchanged; it's completely impossible to match mails to
>     conversations without searching one's inbox. (it's also in the first
>     line of the digest...).
> So, if you're running your flow graph for 60 minutes and it produces
>     250kS/s, that totals to 3.6*250MS = 0.9GS. 
> Now, assuming you save complex float (which is 2x float32), that is
>     a whopping 8B/S*0.9GS = 7.2GB. 
> By any chance: How full is your hard drive? Or do you write that
>     data to RAM? Are you using a file system with a maximum file size
>     (FAT32)?
> Again, what you're offering for debugging purposes is not really
>     much. However, I can assure you that the file_sink usually works
>     perfectly over long times. Martin has already given you some hints
>     of what could be interesting, maybe you could fill us in on these?
> Greetings,
> Marcus
> On 14.10.2014 19:06, Dominique Guelord Ingala wrote:
> From: Martin Braun <address@hidden> To: address@hidden Subject: Re: 
> [Discuss-gnuradio] GRC running for 45 minutes only
> Message-ID: <address@hidden> Content-Type: text/plain; charset=ISO-8859-1 On 
> 09/13/2014 05:25 PM, Dominique Guelord Ingala wrote: Hi,
> Now my GRC runs for 45-60 minutes only, after that the flowgraph is killed on 
> its own.
> No error message provided. Anyone can assist? You're probably running the 
> 'lite' version of GRC, which has this
> limitation.... Just kidding! There's no lite version. 
>> However, no-one will be able to help you without some more info; which
> version, what's your FG, what's the smallest FG you can create which has
> this issue, have you tried tracking it down to a specific block... 
>> Cheers,
> M 
>> I Martin,
> The GRC runs properly with no problem. But I discovered that the problem 
> starts when I use the File Sink block to store my data.  When File Sink block 
> is activated, my GRC runs for about 60 minutes and shuts down automatically.
> I have a very simple flowgraph: Usrp source with 2 channels, 1 Multiply 
> block, 1 Scope Sink, and 1 File Sink. My system sample rate is 250 Ksps.
> I tried to change the sample rate, but no luck still. Any help please. 
> Dominique. Le Dimanche 14 septembre 2014 18h01, "address@hidden" 
> <address@hidden> a écrit : Send Discuss-gnuradio mailing list submissions to 
> address@hidden To subscribe or unsubscribe via the World Wide Web, visit 
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio or, via email, send a 
> message with subject or body 'help' to address@hidden You can reach the 
> person managing the list at address@hidden When replying, please edit your 
> Subject line so it is more specific
> than "Re: Contents of Discuss-gnuradio digest..." Today's Topics: 1. Re: 
> using control port monitor (Mostafa Alizadeh) 2. Re: GRC running for 45 
> minutes only (Martin Braun) 3. Regarding Transceiver design on GNUradio (amit 
> naik) 4. Re: Regarding Transceiver design on GNUradio (Mike Jameson) 
> ---------------------------------------------------------------------- 
> Message: 1
> Date: Sat, 13 Sep 2014 21:01:31 +0430
> From: Mostafa Alizadeh <address@hidden> To: Tom Rondeau <address@hidden> Cc: 
> address@hidden Subject: Re: [Discuss-gnuradio] using control port monitor
> Message-ID: <address@hidden> Content-Type: text/plain; charset="iso-8859-1" 
> Hello Tom,
> Is there a timeline for fixing the issue with control port and backing it
> to its normal operation? Best, On Sat, Sep 13, 2014 at 7:31 PM, Tom Rondeau 
> <address@hidden> wrote: 
>> On Sat, Sep 13, 2014 at 10:43 AM, Vanush Vaswani <address@hidden> wrote: 
>>> That doesn't specify what the underlying concern was. 
>>> Nope. No it doesn't. Tom 
>>> On Sat, Sep 13, 2014 at 11:46 PM, Tom Rondeau <address@hidden> wrote: 
>>>> On Sat, Sep 13, 2014 at 8:35 AM, Vanush Vaswani <address@hidden> 
>>>> wrote: 
>>>> What are the issues? 
>>>> http://lists.gnu.org/archive/html/discuss-gnuradio/2014-08/msg00166.html 
>>>> Tom 
>>>>> On Sat, Sep 13, 2014 at 3:38 PM, Sylvain Munaut <address@hidden> 
>>>> wrote: 
>>>> Pleas help me to use control port monitor. 
>>>>>>> You can't. See a mail from Tom Rondeau a few weeks back : ctrl port has 
>>>>>>> been
> temporarly removed from gnuradio due to some issues with its
> middleware. It's being worked on. Cheers, Sylvain 
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