Hi, [email protected] wrote: >Funny enough patched MacLucasFFTW works slower on QS20 (than PS3) and >during the execution it uses only 8 SPUs form 16 available ! ? >I tried using function fftw_cell_set_nspe(16) but still fftw runs on >maximum 8 spes. >Is it fftw limitation ? >any ideas ?
can see http://tu-dresden.de/die_tu_dresden/zentrale_einrichtungen/zih/forschung/architektur_und_leistungsanalyse_von_hochleistungsrechnern/cell//matmul/ numactl is your answer? ./cell/fftw-cell.h:#define MAX_NSPE 16 fftw suport 16SPE may be. .. . . . . . . . . . Shoichiro Yamada [email protected] _______________________________________________ Prime mailing list [email protected] http://hogranch.com/mailman/listinfo/prime
