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<p class="MsoNormal"><a name="_MailEndCompose"><span style="color:#1F497D">Thanks Saber,<o:p></o:p></span></a></p>
<p class="MsoNormal"><span style="color:#1F497D">I already have GRASS installed, and if I recall the application you linked me to is an interface for installing GRASS? What I’m hoping for is upgrading the version of Python to 64 bit that GRASS is using.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">When I open GRASS and go to the Python shell it says it’s using a 32 bit version of Python 2.7.2.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I know it’s a separate installation for ArcGIS to get a 64 bit version of Python installed so I was thinking that GRASS may be the same procedure?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">-Andy<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Saber Razmjooei [mailto:saber.razmjooei@lutraconsulting.co.uk]
<br>
<b>Sent:</b> Friday, September 26, 2014 10:23 AM<br>
<b>To:</b> Orr, Andrew B.; grass-user@lists.osgeo.org<br>
<b>Subject:</b> RE: [GRASS-user] 64 bit Python in GRASS 6.4.2<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Hi Andy,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">You can try this:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><a href="http://download.osgeo.org/osgeo4w/osgeo4w-setup-x86_64.exe">http://download.osgeo.org/osgeo4w/osgeo4w-setup-x86_64.exe</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Saber<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
<a href="mailto:grass-user-bounces@lists.osgeo.org">grass-user-bounces@lists.osgeo.org</a> [<a href="mailto:grass-user-bounces@lists.osgeo.org">mailto:grass-user-bounces@lists.osgeo.org</a>]
<b>On Behalf Of </b>Orr, Andrew B.<br>
<b>Sent:</b> 26 September 2014 15:46<br>
<b>To:</b> 'grass-user@lists.osgeo.org'<br>
<b>Subject:</b> [GRASS-user] 64 bit Python in GRASS 6.4.2<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal">Hello all,<o:p></o:p></p>
<p class="MsoNormal">I’ve been working on a r.cost and r.drain python script that is using very large rasters. I’ve been running into some memory issues with this script due to the size of the rasters. I read about setting the amount of memory that the map
can be stored in with the “percent_memory=xx” argument for r.cost, however the performance of running the script is becoming a problem (it takes too long to run for our goal).
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I then started watching the Task Manager and noticed it was peaked out at less ~4 gigs of ram and I realized it’s only a 32 bit version of Python installed with GRASS.<o:p></o:p></p>
<p class="MsoNormal"><b>My question is: is there a compatible 64 bit version of Python for GRASS 6.4.x, and if so, how does one install it?<o:p></o:p></b></p>
<p class="MsoNormal"><b><o:p> </o:p></b></p>
<p class="MsoNormal">Thanks for your help!<o:p></o:p></p>
<p class="MsoNormal">-Andy<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Times New Roman","serif""><o:p> </o:p></span></p>
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<p><span lang="EN-GB" style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#999999">Saber Razmjooei and Peter Wells trading as Lutra Consulting.<o:p></o:p></span></p>
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