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<div>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 (<a href="http://msdn.microsoft.com/en-us/library/windows/desktop/aa366778(v=vs.85).aspx" target="_blank">http://msdn.microsoft.com/en-us/library/windows/desktop/aa366778(v=vs.85).aspx</a>).
This is why streamtrack fails as soon as your file reaches 2GB of size. </div>
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<div>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...</div>
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<div>Currently, the only way around this is to use the 64-bit Linux or MacOS version.</div>
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<div>Hopefully, future releases will include a 64-bit version on Windows.</div>
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<div id="divRpF447658" style="direction: ltr;"><font face="Tahoma" size="2" color="#000000"><b>From:</b> mrtrix-discussion-bounces@public.nitrc.org [mrtrix-discussion-bounces@public.nitrc.org] on behalf of Matteo Diano [matteo.diano@gmail.com]<br>
<b>Sent:</b> 07 May 2013 09:37<br>
<b>To:</b> Donald Tournier<br>
<b>Cc:</b> mrtrix mailinglist<br>
<b>Subject:</b> Re: [Mrtrix-discussion] Sreamtrack error<br>
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<div>Hi Donald,<br>
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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.<br>
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Cheers<br>
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Matteo<br>
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<div class="gmail_quote">2013/5/7 Donald Tournier <span dir="ltr"><<a href="mailto:d.tournier@brain.org.au" target="_blank">d.tournier@brain.org.au</a>></span><br>
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<div dir="ltr">Hi Matteo,
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<div>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...</div>
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<div>Hope this helps,</div>
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<div>Donald.</div>
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<div class="h5">On 7 May 2013 16:49, Matteo Diano <span dir="ltr"><<a href="mailto:matteo.diano@gmail.com" target="_blank">matteo.diano@gmail.com</a>></span> wrote:<br>
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<div>Dear MRtrix experts,<br>
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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.<br>
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Thank you very much!<br>
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Regards<span><font color="#888888"><br>
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<span><font color="#888888">Matteo<br>
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-- <br>
<font size="1" color="#ff6600"><b>Dr Jacques-Donald Tournier<br>
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