Hello,
the lround fix we applied to the LinBox? spkg also fixes the Strassen-Winograd optimization test:
checking best threshold for Strassen-Winograd matrix multiplication...
fgemm 300x300: 0.45 s, 120 Mffops
1Wino 300x300: 0.31 s, 174.194 Mffops
fgemm 300x300: 0.45 s, 120 Mffops
1Wino 300x300: 0.31 s, 174.194 Mffops
fgemm 44x44: 0 s, Inf Mffops
1Wino 44x44: 0 s, Inf Mffops
fgemm 172x172: 0.09 s, 113.077 Mffops
1Wino 172x172: 0.05 s, 203.538 Mffops
fgemm 172x172: 0.09 s, 113.077 Mffops
1Wino 172x172: 0.06 s, 169.615 Mffops
done
This was from the compile test I ran on Neron.
For the updated spkg have a look at
http://sage.math.washington.edu/home/mabshoff/spkg-install-LinBox-enable-SWO
Cheers,
Michael