Cache oblivious storage and access heuristics for blocked matrix-matrix multiplication

Autor:	Bock, Nicolas, Rubensson, Emanuel H., Sałek, Paweł, Niklasson, Anders M. N., Challacombe, Matt
Rok vydání:	2008
Předmět:	Computer Science - Data Structures and Algorithms
Druh dokumentu:	Working Paper
Popis:	We investigate effects of ordering in blocked matrix--matrix multiplication. We find that submatrices do not have to be stored contiguously in memory to achieve near optimal performance. Instead it is the choice of execution order of the submatrix multiplications that leads to a speedup of up to four times for small block sizes. This is in contrast to results for single matrix elements showing that contiguous memory allocation quickly becomes irrelevant as the blocksize increases. Comment: Fixed typos
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0808.1108 Zobrazit plný text záznamu View this record from Arxiv