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OVERVIEW ======== VHCC is an efficient Sparse Matrix Vector Multiply (SpMV) implementation on Xeon Phi. It is particularly optimized for scale-free sparse matrices. PREREQUISITES ============= Intel Compiler version >= 13.1 HOW TO ====== - Type "make" to compile - Copy the compiled "phi_spmv" binary to Xeon Phi - Copy lib/libiomp5.so to Xeon Phi - On Xeon Phi, export LD_LIBRARY_PATH with path to libiomp5.so - Execute ./phi_spmv -f matrix.mtx -t 240 -r 512 -c 8192 -p 4 OPTIONS ======= -f: matrix market format -t: number of threads (suggested: 240) -r: row blocking factor (suggested: 512) -c: column blocking factor (suggested: 8192) -p: number of panels (see below) SUGGESTED PANEL NUMBERS ======================= Suggested numbers of panels for our tested matrices Stanford 5 IMDB 5 wiki-Talk 1 web-Google 2 connectus 40 NotreDame_actors 1 citationCiteseer 5 soc-sign-epinions 1 human_gene2 6 mouse_gene 15
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