[Mrtrix-discussion] Sreamtrack error

[Jeurissen Ben]

As Donald explained, MRtrix on Windows is compiled as a 32-bit executable. A default 64-bit Windows installation will only allow you to address 2 GB of ram (http://msdn.microsoft.com/en-us/library/windows/desktop/aa366778(v=vs.85).aspx). This is why streamtrack fails as soon as your file reaches 2GB of size.

A 64-bit Windows executable would solve this issue, but unfortunately I haven't been able to get the visualization part of mrtrix working properly in a 64-bit version on Windows...

Currently, the only way around this is to use the 64-bit Linux or MacOS version.

Hopefully, future releases will include a 64-bit version on Windows.



________________________________
From: mrtrix-discussion-bounces at public.nitrc.org [mrtrix-discussion-bounces at public.nitrc.org] on behalf of Matteo Diano [matteo.diano at gmail.com]
Sent: 07 May 2013 09:37
To: Donald Tournier
Cc: mrtrix mailinglist
Subject: Re: [Mrtrix-discussion] Sreamtrack error

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<mailto: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<mailto: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


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--
Dr Jacques-Donald Tournier
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