Scheduled Downtime
On Friday 21 April 2023 @ 5pm MT, this website will be down for maintenance and expected to return online the morning of 24 April 2023 at the latest

Do memory requirements increase with time execution?

This post was from a previous version of the WRF&MPAS-A Support Forum. New replies have been disabled and if you have follow up questions related to this post, then please start a new thread from the forum home page.


New member
Do memory requirements increase with time execution?

Suppose I need to do a one-month WRF-Chem simulation and know using the same configuration (namelist configuration, inputs, and machine) with only a one-day simulation; I will have a time execution of 24 hours. Does it mean that for one month, it will take 31 days? Or isn't there a linear relation?

Thank you in advanced,

Ok, thanks.

And what about the memory needed for each core to execute the simulation?

If my one-day simulation works well using 2Gb per core, the 1-month simulation will also work with 2Gb per core? Or maybe it will require more memory to execute?

Thanks in advanced,

Hi Verònica,

Memory requirements should not be an issue. I would suggest periodically writing restart files in case something goes wrong.