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diff --git a/krylov_multi.tex b/krylov_multi.tex
index ff5e8480a0d6617212e4fac787a2380e312c6e02..92730acf05eac86a8b0b5cdf694fc94b46f0dd68 100644 (file)
--- a/krylov_multi.tex
+++ b/krylov_multi.tex
@@ -276,9 +276,11 @@ preconditioner  it  is   possible  to  reduce  the  number   of  iterations  but
 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. 
 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,  the previous UK's  high-end computing resource,  funded by
-the UK Research Councils, which has been stopped in the early 2014.
+In the following we present some experiments we could achieved out on the Hector
+architecture, the  previous 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.

 
 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
 
 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