2 Apr
2009
2 Apr
'09
8:13 p.m.
I just did some benchmarking with single and double precision using SSE and CPU on a fairly recent machine. Only one SSE function is being used: _mm_sqrt_ps and _mm_sqrt_pd, respectively. Using float I get: SSE: 328ms CPU: 2890ms Using double I get: SSE: 1188ms CPU: 2875ms double is almost 4-times slower than float. Seems to me that one should favor float over double. I still would like to see boost.simd appear and do some more testing. Regards, Christian