Platform independent profiling of a QCD code
- Marinkovic, Marina Krstic et al
- arXiv:1702.06865CERN-TH-2017-027
 | Strong and weak scaling of the \ym program on a typical Cray machine (PizDaint, CSCS). Strong scaling plot shown in the left panel is obtained by running \ym on a global lattice of a size $32^4$. Local lattice size used for the weak scaling plot shown in the right panel is $8^4$. Both plots are obtained with run parameters from the sample input file \ymin distributed with \openqcd \cite{openQCD}. |
 | Strong and weak scaling of the \ym program on a typical Cray machine (PizDaint, CSCS). Strong scaling plot shown in the left panel is obtained by running \ym on a global lattice of a size $32^4$. Local lattice size used for the weak scaling plot shown in the right panel is $8^4$. Both plots are obtained with run parameters from the sample input file \ymin distributed with \openqcd \cite{openQCD}. |
 | Workflow for coupling the \openqcd package and \simgrid. Once platform characteristics have been benchmarked and network models have been instantiated, many simulations can be run at low cost to provide faithful predictions for a wide range of scenarios. |
 | Native (red) and simulated (blue) times on 4 and 8 processors at 2 Dodeca-core Haswell Intel Xeon E5-2680 machine. We simulated four HMC trajectories of pure Yang-Mills simulation program that is a part of \openqcd. Run parameters are taken from the sample input file \ymin distributed with \openqcd \cite{openQCD}. |