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Titel:

Parallel MLEM on Multicore Architectures

Dokumenttyp:
Proceedings Paper
Autor(en):
Kustner, T; Weidendorfer, J; Schirmer, J; Klug, T; Trinitis, C; Ziegler, S
Abstract:
The efficient use of multicore architectures for sparse matrix-vector multiplication (SpMV) is currently an open challenge. One algorithm which makes use of SpMV is the maximum likelihood expectation maximization (MLEM) algorithm. When using MLEM for positron emission tomography (PET) image reconstruction, one requires a particularly large matrix. We present a new storage scheme for this type of matrix which cuts the memory requirements by half, compared to the widely-used compressed sparse row...     »
Zeitschriftentitel:
LECT NOTE COMPUT SCI
Jahr:
2009
Band / Volume:
5544
Seitenangaben Beitrag:
491-500
Sprache:
eng
Print-ISSN:
0302-9743
TUM Einrichtung:
Klinik und Poliklinik für Nuklearmedizin
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