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Re: SoftFloat Benchmarks

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Hi,

I ran a last benchmark : stream - http://www.cs.virginia.edu/stream/
------------------------------------------------------------------
name        kernel                  bytes/iter      FLOPS/iter
------------------------------------------------------------------
COPY:       a(i) = b(i)                 16              0
SCALE:      a(i) = q*b(i)               16              1
SUM:        a(i) = b(i) + c(i)          24              1
TRIAD:      a(i) = b(i) + q*c(i)        24              2
------------------------------------------------------------------

*** NICO
# ./stream_nico
Function      Rate (MB/s)   RMS time     Min time     Max time
Copy:          97.2260       0.3293       0.3291       0.3299
Scale:         63.8205       0.5088       0.5014       0.5276
Add:           64.9983       0.7490       0.7385       0.7559
Triad:         44.2859       1.1012       1.0839       1.1324

*** NetWinder Floating Point Emulator V0.97 (double precision)
# ./stream_be
Function      Rate (MB/s)   RMS time     Min time     Max time
Copy:          97.2769       0.3291       0.3290       0.3293
Scale:          5.5320       5.7875       5.7845       5.7969
Add:            7.1311       6.7316       6.7311       6.7327
Triad:          4.9046       9.7930       9.7866       9.7956

*** Fast Floating Point Emulator V0.9 (c) Peter Teichmann.
# ./stream_be
Function      Rate (MB/s)   RMS time     Min time     Max time
Copy:          97.2470       0.3292       0.3291       0.3295
Scale:         10.4368       3.0865       3.0661       3.1087
Add:           13.7567       3.4994       3.4892       3.5145
Triad:         10.4331       4.6319       4.6007       4.6718

*** Conclusion :
Scale (*)   : NICO = 11.5 * NWFPE, NICO = 6.11 * FFPE, FFPE = 1.89 * NWFPE
Add (+)     : NICO = 9.11 * NWFPE, NICO = 4.72 * FFPE, FFPE = 1.92 * NWFPE
Triad (+&*) : NICO = 9.03 * NWFPE, NICO = 4.24 * FFPE, FFPE = 2.13 * NWFPE

Eric



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