[Proof of Concept] Precompute static parts of the deformation gradient#1225
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efaulhaber wants to merge 1 commit into
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[Proof of Concept] Precompute static parts of the deformation gradient#1225efaulhaber wants to merge 1 commit into
efaulhaber wants to merge 1 commit into
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This is a proof-of-concept demonstrating what we could potentially gain from precomputing the static part of the deformation gradient. On the GPU, the load of this precomputed part can be coalesced (which is the memory layout in this PR). For the CPU, it is faster to switch the memory layout to put
particlelast.As we can see below, we get a significant but not massive speedup on the GPU, but only in 3D. On the CPU, we get a massive 2x speedup, but not more from SIMD-vectorizing it, whereas the version in #1220 is even faster when vectorized. In 2D, this is slower on the CPU.
3D
2D