MOB forms
Juan J. Navarro, Toni Juan, Tomás Lang · 1994
Multilevel block algorithms exploit the data locality in linear algebra operations when executed in machines with several levels in the memory hierarchy. It is shown that the family we call Multilevel Orthogonal Block (MOB) algorithms is optimal and easy to design and that using the multilevel approach produces significant performance improvements. The effect of interference in the cache, of the TLB misses, and of page faults are also considered. The multilevel block algorithms are evaluated analytically for an ideal memory system with M cache levels without interferences. Moreover, experimental results of the MOB forms in some present high performance workstations are presented.