Research Article

A Performance Study of a Dual Xeon-Phi Cluster for the Forward Modelling of Gravitational Fields

Figure 16

Behaviour of the computing time obtained for the estimation of when using 10 nodes of the cluster (the scale is semilogarithmic base 10 on the time axis). The curves compare the behaviour of the times obtained using 16 threads on the CPU versus 236 threads for each Xeon-Phi (these are the best results for both cases). As expected, the behaviour is not completely linear (but almost) as we can see when the speed-up is calculated (see Figure 17).