Hi Michael,

I can understand some extra memory use due to core memory allocation, but not the large difference found.

I changed MOI V2 to use only one core for mesh creation, then ran the test again on a less dense mesh.

Test model with same mesh output settings. Memory peak (approx):-

Moi V1 = 420MB
Moi V2 (single core) = 770MB


edit
Moi V2 (2 cores) 910MB
Moi V2 (4 cores) Insufficient memory