Before revision:  We demonstrate that it is nevertheless possible to achieve an appreciably high throughput of the computing kernels of such a scheme. We discuss the algorithmic design that allows a SIMD vectorization of the compute kernel, analyze the node-level performance  and report excellent weak and strong scaling of a hybrid thread/MPI parallelization.
After revision:  We develop an algorithmic design that allows a SIMD vectorization of the compute kernel, analyze the node-level performance and report excellent weak and strong scaling of a hybrid thread/MPI parallelization.