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Hi Dimitris,</div>
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Thank you for the concrete hardware suggestions. They are very helpful.</div>
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Best,</div>
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Yuanzhi</div>
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<b>发件人:</b> MITgcm-support <mitgcm-support-bounces@mitgcm.org> 代表 Dimitris Menemenlis <dmenemenlis@gmail.com><br>
<b>日期:</b> 星期六, 2025年11月22日 09:57<br>
<b>收件人:</b> MITgcm Support <mitgcm-support@mitgcm.org><br>
<b>主题:</b> Re: [MITgcm-support] Workstation advice for MITgcm passive tracer runs<br>
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<div class="ms-outlook-mobile-reference-message skipProofing">It depends what resolution you want to run.</div>
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<div class="ms-outlook-mobile-reference-message skipProofing">3-degree global, e.g., https://github.com/MITgcm-contrib/ecco_darwin/tree/master/v05/3deg</div>
<div class="ms-outlook-mobile-reference-message skipProofing">should run fine on your laptop</div>
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<div class="ms-outlook-mobile-reference-message skipProofing">1-degree ECCO setup, e.g., https://github.com/MITgcm-contrib/llc_hires/blob/master/llc_90/ecco_v4r5/readme_v4r5_eady.txt</div>
<div class="ms-outlook-mobile-reference-message skipProofing">should run fin on a 32-core workstation with 256 GB</div>
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<div class="ms-outlook-mobile-reference-message skipProofing">Dimitris</div>
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<div class="ms-outlook-mobile-reference-message skipProofing">On Nov 21, 2025, at 4:51 PM, QI Yuanzhi <qi.yz@outlook.com> wrote:</div>
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Dear MITgcm community, </div>
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My name is Yuanzhi Qi. I am planning to use MITgcm to simulate the distribution and transport of radioactive tracers in the ocean. Specifically, I aim to model the historical concentration changes of Iodine-129 (I-129) in the Arctic Ocean over the past 80 years.
This work is intended to serve as a foundation for future global-scale I-129 simulations and, potentially, for using I-129 as a tracer to study the broader marine iodine cycle. </div>
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My main question is: Is it feasible to run such 3D simulations on a single workstation? If so, could you provide specific hardware recommendations—such as CPU, GPU, RAM, and storage?</div>
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For instance, should I consider a CPU with 16 cores, 32 cores, or more? Would 128 GB of RAM be sufficient, or would I need 256 GB or more?</div>
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Additionally, if there are any example setups or configurations for similar oceanic passive tracer studies beyond the User Manual, I would be very grateful for any references or pointers.</div>
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Thank you in advance for your guidance.</div>
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Best regards,</div>
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Yuanzhi</div>
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