Thursday

We present the next-generation open-source cosmological code SWIFT. Using task-based parallelism for intra-node parallelisation, asynchronous communications for inter-node communications and SIMD intrinsics for the code kernels, our code is more than 20x faster than the de-facto standard Gadget code on representative cosmological problems.

We implement multiple SPH and unstructured hydrodynamics solvers as well as a full test suite to assess the accuracy of the schemes in various situations.

We expect to release the code to the public by the end of the summer. Current performance tests on 100k+ cores have been published in arxiv:1606.02738.