[Mrtrix-discussion] Sreamtrack error

[Donald Tournier]

Hi Matteo,

OK, 2GB is probably the limit in a 32-bit environment since file offsets
will typically be stored using signed integers. Under 32-bit Linux this
(usually) isn't an issue since these are actually stored using 64-bit
quantities (at least if the kernel support large files, which is the case
on any modern Linux distribution). My guess is the compiler used to build
MRtrix on Windows still uses a 32-bit integer for file offsets... It's
unfortunately not possible at this stage to provide a 64-bit build on
Windows due to the difficulties in getting working GTK dependencies - Ben
Jeurissen will probably tell you more about it if you're interested. All I
can recommend is trying the Linux or MacOS version...

Sorry I can't be more help.
Cheers,

Donald.




On 7 May 2013 17:37, Matteo Diano <matteo.diano at gmail.com> wrote:

> Hi Donald,
> thank you for your answer. I am working on SSD formatted in NTFS with 16G
> of RAM and the size of the file is around 2G. So I have no idea about this
> issue.
> Cheers
>
> Matteo
>
>
> 2013/5/7 Donald Tournier <d.tournier at brain.org.au>
>
>> Hi Matteo,
>>
>> Sounds to me like you've hit a file size limit. What is the size of the
>> tracks file when it fails? It might be due to the 32-bit 4GB boundary
>> (MRtrix on Windows is compiled as a 32-bit executable, as far as I know),
>> but it could also be due to a limitation of your filesystem. Are you
>> writing the tracks to a NTFS partition, or a FAT partition? If the latter,
>> you'll definitely encounter issues like you describe...
>>
>> Hope this helps,
>>
>> Donald.
>>
>>
>>
>>
>> On 7 May 2013 16:49, Matteo Diano <matteo.diano at gmail.com> wrote:
>>
>>> Dear MRtrix experts,
>>> I tried to use streamtrack SB_PROB to obtain the whole brain tracking to
>>> fed into the TDI processing (so more than 1 million fibers). Every time I
>>> got this error: "973180 generated,   772168 selected    [ 19%]streamtrack:
>>> error writing to tracks file: Invalid argument". I tried to change data but
>>> i had the same problem and it always stops around 18 percent. I am using
>>> MRtrix on win 7 64b.
>>> Thank you very much!
>>> Regards
>>>
>>> Matteo
>>>
>>>
>>> _______________________________________________
>>> Mrtrix-discussion mailing list
>>> Mrtrix-discussion at www.nitrc.org
>>> http://www.nitrc.org/mailman/listinfo/mrtrix-discussion
>>>
>>>
>>
>>
>> --
>> *Dr Jacques-Donald Tournier
>> *
>> Research Fellow
>>
>> The Florey Institute of Neuroscience and Mental Health
>> Melbourne Brain Centre - Austin Campus
>> 245 Burgundy Street
>> Heidelberg  Vic  3084
>> Ph:  +61 3 9035 7033
>> Fax:  +61 3 9035 7307
>> www.florey.edu.au
>>
>>
>


-- 
*Dr Jacques-Donald Tournier
*
Research Fellow

The Florey Institute of Neuroscience and Mental Health
Melbourne Brain Centre - Austin Campus
245 Burgundy Street
Heidelberg  Vic  3084
Ph:  +61 3 9035 7033
Fax:  +61 3 9035 7307
www.florey.edu.au
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