Chris<br><br>Generally anything that encounters problems at either 2GB or 4GB immediately suggests a 32-bit problem.<br>In this case, I can think of two possibilities; either your operating system is 32-bit, or your HDD is using a file system that does not support files greater than 4GB (e.g. FAT32).<br>
Can you let us know what OS and file system you are using? Is the output track file being saved to an external drive or an internal one?<br>I have successfully created track files of over 100 million streamlines, so I doubt it's something within MRtrix itself that's causing the limit.<br>
<br>Rob<br><div class="gmail_extra"><br clear="all"><div><br>--<br><br>Robert Smith<br>PhD Candidate <br><br>The Florey Institute of Neuroscience and Mental Health<br>Melbourne Brain Centre - Austin Campus<br>245 Burgundy Street<br>
Heidelberg Vic 3084<br>Ph: +61 3 9035 7128<br>Fax: +61 3 9035 7301<br><a href="http://www.florey.edu.au" target="_blank">www.florey.edu.au</a><br><span style="font-size:9pt;font-family:"Times New Roman","serif";color:red"></span></div>
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<br><br><div class="gmail_quote">On Thu, Dec 20, 2012 at 2:27 AM, Parker, Christopher <span dir="ltr"><<a href="mailto:christopher.parker.10@ucl.ac.uk" target="_blank">christopher.parker.10@ucl.ac.uk</a>></span> wrote:<br>
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<div style="direction:ltr;font-size:10pt;font-family:Tahoma">Hi,
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<div>I am encountering a problem using streamtrack with a large number of streamlines. The .tck file is saved to disk without error, but files with over ~2.36 million streamlines are all 4.29 GB on disk, meaning the extra streamlines were not saved.The files
all had 357,916,000 coordinates (1,073,748,000 numbers of 4 bytes each = 4.29GB) including a Inf triplet repeat signalling the end of the file. Do you have any idea what could be causing this limit?</div>
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<div>Many Thanks,</div>
<div>Chris</div>
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