Hi everyone! I'm trying to generate some BEM solutions for my masters thesis, but I'm having trouble doing so for lack of memory, I'm working on a workstation with 32 Gb RAM and keep getting into crashes due to a high number of vertices in my meshes.
My goal is to compare the activity sources of a SSEP with different values of the conductivity ratio, and my supervisor advised me to use high resolution meshes so the results could be comparable with the ones of another student who is working on something similar.
So my questions are, I see that the mesh that generates the dipoles has 15002v and I'm trying to make the model with at least 8000 triangles in each surface. What is better to compromise on? The number of dipoles used for the dsm command on openmeeg or the number of vertices on one of the meshes?
Also I noticed that outer and inner skull must be the same to have better accuracy, so which is better to set a lesser number of vertices on, the scalp or the pair of skull meshes?
And for last, I'm also curious why Brainstorm uses the 15002v mesh for the cortex and thus the dipoles, I read here Open MEEG BEM on Colin27 - Discussions - Brainstorm (usc.edu) that the value was chosen to have a good compromise between accuracy and usability. Do the dev team has information on this? I would like this info to back up why I'm choosing these dipoles.
Thanks in advance for the responses and I hope I'm not asking dumb questions, also I would like to thank the dev team and researchers behind Brainstorm, it's a terrific piece of software that has helped me to streamline my thesis protocol.