X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/Krylov_multi.git/blobdiff_plain/e82d3db730093a1ae5fd3f4ecb5442ee0eaef981..2ba13b434c9d2aab12becfb44463be0a8bea74e7:/krylov_multi.tex?ds=inline diff --git a/krylov_multi.tex b/krylov_multi.tex index d687ad8..98b8949 100644 --- a/krylov_multi.tex +++ b/krylov_multi.tex @@ -277,10 +277,10 @@ preconditioners are not scalable when using many cores. %Doing many experiments with many cores is not easy and requires to access to a supercomputer with several hours for developing a code and then improving it. In the following we present some experiments we could achieved out on the Hector -architecture, a UK's high-end computing resource, funded by the UK -Research Councils. This is a Cray XE6 supercomputer, equipped with two 16-core -AMD Opteron 2.3 Ghz and 32 GB of memory. Machines are interconnected with a 3D -torus. +architecture, a UK's high-end computing resource, funded by the UK Research +Councils~\cite{hector}. This is a Cray XE6 supercomputer, equipped with two +16-core AMD Opteron 2.3 Ghz and 32 GB of memory. Machines are interconnected +with a 3D torus. Table~\ref{tab1} shows the result of the experiments. The first column shows the size of the 3D Poisson problem. The size is chosen in order to have @@ -366,6 +366,8 @@ intend to investigate the convergence improvements of our method by using preconditioning techniques for Krylov iterative methods and multisplitting methods with overlapping blocks. +\section{Acknowledgement} +The authors would like to thank Mark Bull of the EPCC his fruitful remarks and the facilities of HECToR. %Other applications (=> other matrices)\\ %Larger experiments\\