## Finite Element Stiffness Matrix Action: to precompute or not to precompute

Q: does it make sense to partially assembled elemental stiffness matrices for affine tetrahedral finite elements when running on a Volta class GPU ? Background: In the reviews of our recent paper on optimizing FEM operations for hexahedral elements we were asked why not assemble the matrices. The comment was an inspiration for this post albeit in this case we are discussing tetrahedral finite elements. A: Recall that we need to compute the following: and the question we are a