[petsc-users] testing scalability for ksp/ex22.c (now ex45.c)

Francis Poulin fpoulin at uwaterloo.ca
Fri Feb 24 15:22:00 CST 2012

Thanks for the link.  I did the tests on an SGI SMP machine that, if I understand correctly, shares the memory much better than most other systems.  I will read about these different components and see what I can figure out.


>   You need to understand the issues of memory bandwidth shared between cores and between processors, memory affinity and thread affinity ("binding") see http://www.mcs.anl.gov/petsc/documentation/faq.html#computers
>   Barry

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