January 2018 - Nektar-users

gitlab update
by David Moxey 13 Jan '18

13 Jan '18

Dear all, As we're falling behind the gitlab versions again, I'll be taking the gitlab server down for an update tomorrow from around 1pm GMT. This might be a little longer than usual, as I will try to transition to the better-supported Omnibus edition, which will make future updates automatic. Cheers, Dave

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forces computation in parallel computations
by F Mellibovsky 13 Jan '18

13 Jan '18

Dear all, When running parallel (72 core) aggregate quantitities such as body forces (particularly pressure forces) seem to include a certain degree -low amplitude- of randomness in their evolution. The high frequency random oscillations seem to be of the order of the sampling period. This suggests some kind of issue with the gathering of data from all parallel processes for aggregate quantity computation. Is there some precaution that must be taken upon compilation or in defining the cluster parallel environtment to avoid this issue? I attach one such forces time-series to illustrate this. Viscous forces seem to be just fine, while pressure (and total) forces oscillate at high frequency. Cheers

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Regarding deforming mesh
by SIDHARTHA SANKAR SAMANTARAY 03 Jan '18

03 Jan '18

Hello, Does Nektar++ support deforming mesh? If so, what should I do to implement it? Regards, Sidharth -- ------------------------------ *Disclaimer: *This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.

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