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<div style="direction: ltr;">Thank you Yangxin.</div>
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<div style="direction: ltr;">Did you remove the particles during the simulation based on criteria of them being close to the boundary? Or did you just not initialize particles near the boundary beforehand?</div>
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<div style="direction: ltr;">John</div>
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<div style="direction: ltr;">John Irving</div>
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<div style="direction: ltr;">jirving@fsu.edu | jpi18@my.fsu.edu</div>
<div style="direction: ltr;">Ph.D Candidate – Biological Oceanography</div>
<div style="direction: ltr;">FSU Center For Ocean-Atmoshperic Prediction Studies</div>
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<div style="direction: ltr;">~~~~~~~~ <*)))>< ~~~~~~~~</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> MITgcm-support <mitgcm-support-bounces@mitgcm.org> on behalf of Yangxin He <y67he@uwaterloo.ca><br>
<b>Sent:</b> Monday, March 1, 2021 12:02:24 PM<br>
<b>To:</b> MITgcm-support@mitgcm.org <MITgcm-support@mitgcm.org><br>
<b>Subject:</b> Re: [MITgcm-support] Segmentation faults in MITgcm flt_package</font>
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<p class="x_MsoNormal">Hi John,</p>
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<p class="x_MsoNormal">I had similar issue as yours, and I sent an email to MITgcm support a few weeks ago but I have not got any replies.</p>
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<p class="x_MsoNormal">About your comment that “floats hitting a boundary”, in my runs I removed my floats closest to the boundary then it worked. I still find it strange.</p>
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<p class="x_MsoNormal">Yangxin</p>
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<p class="x_MsoNormal"><b><span style="font-size:12.0pt; color:black">From: </span>
</b><span style="font-size:12.0pt; color:black">MITgcm-support <mitgcm-support-bounces@mitgcm.org> on behalf of John Paul Irving <jpi18@my.fsu.edu><br>
<b>Reply-To: </b>"MITgcm-support@mitgcm.org" <MITgcm-support@mitgcm.org><br>
<b>Date: </b>Monday, March 1, 2021 at 11:53 AM<br>
<b>To: </b>"MITgcm-support@mitgcm.org" <MITgcm-support@mitgcm.org><br>
<b>Subject: </b>[MITgcm-support] Segmentation faults in MITgcm flt_package</span></p>
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<p class="x_MsoNormal">Hello all,</p>
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<p class="x_MsoNormal">I am experiencing issues with segmentation faults in the floats package where I run long simulations, usually 20-500 years. I run 43800 floats over 64 processors, and anywhere from 1/3 to 2/3 through the simulation it will stop proceeding.
No error messages are displayed in STDERR.xxx.xxx.data, the STDOUT file just stops, and there is a log.txt file that displays the segmentation fault of a FORTRAN severe 174 error. I know I’m calling the size of the domain, tiles, and number of tiles correctly,
and it’s confusing because it will always stop at different points in the simulation. Has anyone else ever run into an issue like this? </p>
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<p class="x_MsoNormal">Also for those familiar with the floats package, do you have any idea how to stop floats based on a criteria other than a set time, ie- if it’s latitude gets lower than a certain degree? I have a feeling the floats hitting a boundary
could be causing an issue and would like to see if stopping particles just before the boundary has an impact on the issue.</p>
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<p class="x_MsoNormal">Thanks,</p>
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<p class="x_MsoNormal">John </p>
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<p class="x_MsoNormal">John Irving</p>
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<p class="x_MsoNormal">jirving@fsu.edu | jpi18@my.fsu.edu</p>
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<p class="x_MsoNormal">Ph.D Candidate – Biological Oceanography</p>
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<p class="x_MsoNormal">FSU Center For Ocean-Atmoshperic Prediction Studies</p>
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<p class="x_MsoNormal">~~~~~~~~ <*)))>< ~~~~~~~~</p>
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