<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
font-size:12.0pt;
font-family:"Times New Roman",serif;}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.EmailStyle19
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:#1F497D;}
span.EmailStyle20
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 70.85pt 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="NO-BOK" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Hi again,<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">Seek and ye shall find…<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">So, there is:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><a href="https://grasswiki.osgeo.org/wiki/OpenMP#OpenMP_support_in_GRASS_7"><span lang="EN-GB">https://grasswiki.osgeo.org/wiki/OpenMP#OpenMP_support_in_GRASS_7</span></a></span><span lang="EN-GB" style="color:#1F497D">
and<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><a href="https://grasswiki.osgeo.org/wiki/GPU"><span lang="EN-GB">https://grasswiki.osgeo.org/wiki/GPU</span></a></span><span lang="EN-GB" style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Which helped me a bit further.<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">However, my impression is that not all info there (esp. on OpenMP) is up to date (e.g. latest development like here: https://lists.osgeo.org/pipermail/grass-dev/2017-August/085711.html). Neither
did it became very clear to me which modules already have robust and working support and which are just candidates or where initial implementations are available (sometimes outside the code base)…<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">Stefan<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US" style="mso-fareast-language:NO-BOK">From:</span></b><span lang="EN-US" style="mso-fareast-language:NO-BOK"> grass-dev [mailto:grass-dev-bounces@lists.osgeo.org]
<b>On Behalf Of </b>Stefan Blumentrath<br>
<b>Sent:</b> mandag 23. oktober 2017 09.24<br>
<b>To:</b> GRASS developers list (grass-dev@lists.osgeo.org) <grass-dev@lists.osgeo.org><br>
<b>Subject:</b> [GRASS-dev] Compilation options<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Dear all,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-GB">Does someone of you know which modules benefit from --with-openmp and --with-opencl compilation options?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I found this explanation of compilation options:
<a href="https://grass.osgeo.org/grass72/source/snapshot/REQUIREMENTS.html">https://grass.osgeo.org/grass72/source/snapshot/REQUIREMENTS.html</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">But it does not cover OpenCL or OpenMP (as well as some few more other option).
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">If I wanted to find out myself, could I just search the code for modules that import the relevant headers of the respective libraries?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Or is that a bit more complex?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Another question is if it would be recommended to use the different options, as I understood e.g. using --with-pthread is not necessarily a good choice…<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Thanks in advance.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Cheers<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Stefan<o:p></o:p></span></p>
</div>
</body>
</html>