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<p class="MsoNormal"><span lang="EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">in the cluster where I'm deploying Slurm the job allocation has to be based on the actual free memory available on the node, not just the allocated by Slurm. This is nonnegotiable and I understand that it's not how Slurm
is designed to work, but I'm trying anyway.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Among the solutions that I'm envisaging:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">1) Create and update periodically a numerical node feature, with a string and a special character separating the wanted value (memfree_2048). This definitely seems like a mess to implement and too hacky, but is there
an equivalent to PBS' numerical complexes and sensors in Slurm?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">2) Modifying the select cons_res pluging to compare against the actual free memory instead of the allocated memory. Is it as simple as editing the "_add_job_to_res" (<a href="https://github.com/SchedMD/slurm/blob/master/src/plugins/select/cons_res/select_cons_res.c#L816">https://github.com/SchedMD/slurm/blob/master/src/plugins/select/cons_res/select_cons_res.c#L816</a>)
function and using the real left memory ? I don't want to break anything else so that's my main question here, if you can guide me towards the solution or other thoughts on its feasibility.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks a lot in advance!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal">Best regards,<span style="font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:FR"><o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:#1F497D;mso-fareast-language:FR"><img border="0" width="55" height="1" id="Image_x0020_13" src="cid:image001.png@01D3F741.09368820" alt="px"></span><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:#1F497D;mso-fareast-language:FR"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span style="font-size:1.0pt;font-family:"Times New Roman","serif";color:#1F497D;mso-fareast-language:FR"><img border="0" width="1" height="6" id="Image_x0020_12" src="cid:image002.png@01D3F741.09368820" alt="px"></span><span style="font-size:1.0pt;font-family:"Times New Roman","serif";color:#1F497D;mso-fareast-language:FR"><o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:12.0pt"><b><span lang="EN-US" style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#2D3A44;mso-fareast-language:FR">Alexandre PULIDO</span></b><b><span lang="EN-US" style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#2D3A44;mso-fareast-language:FR"><o:p></o:p></span></b></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:#1F497D;mso-fareast-language:FR"><img border="0" width="170" height="29" id="Image_x0020_10" src="cid:image004.jpg@01D3F741.09368820" alt="arianegroup"></span><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:#1F497D;mso-fareast-language:FR"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span style="font-size:1.0pt;font-family:"Times New Roman","serif";color:#1F497D;mso-fareast-language:FR"><img border="0" width="1" height="12" id="Image_x0020_8" src="cid:image005.png@01D3F741.09368820" alt="px"></span><span style="font-size:1.0pt;font-family:"Times New Roman","serif";color:#1F497D;mso-fareast-language:FR"><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span style="font-size:1.0pt;font-family:"Times New Roman","serif";color:#1F497D;mso-fareast-language:FR"><img border="0" width="1" height="20" id="Image_x0020_1" src="cid:image003.png@01D3F741.09368820" alt="px"></span><span lang="EN-US" style="font-size:1.0pt;font-family:"Times New Roman","serif";color:#1F497D;mso-fareast-language:FR"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="mso-fareast-language:FR"><o:p> </o:p></span></p>
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