------- Comment #4 from dominiq at lps dot ens dot fr 2009-01-17 18:12 -------
I have similar results as comment #0 on i686-apple-darwin9 (Core2) trunk
revision 143468:
================================================================================
Date & Time : 17 Jan 2009 17:41:32
Test Name : pbharness
Compile Command : gfc %n.f90 -m64 -O3 -ffast-math -funroll-loops -fgraphite
-fgraphite-identity -floop-block -floop-strip-mine -floop-interchange
-ftree-loop-linear -fomit-frame-pointer -finline-limit=600 --param
min-vect-loop-bound=2 -o %n
Benchmarks : ac aermod air capacita channel doduc fatigue gas_dyn induct
linpk mdbx nf protein rnflow test_fpu tfft
Maximum Times : 300.0
Target Error % : 0.200
Minimum Repeats : 2
Maximum Repeats : 5
Benchmark Compile Executable Ave Run Number Estim
Name (secs) (bytes) (secs) Repeats Err %
--------- ------- ---------- ------- ------- ------
ac 4.86 42560 12.31 5 0.2625
aermod 87.72 1270544 30.36 5 0.2338
air 5.73 77336 8.38 5 0.0536
capacita 4.13 72760 45.60 2 0.0055
channel 1.69 30456 2.71 2 0.0368
doduc 11.71 200024 42.88 2 0.0501
fatigue 4.26 76736 12.91 2 0.0852
gas_dyn 5.83 692200 22.24 5 0.4693
induct 10.17 177072 34.38 2 0.1440
linpk 1.67 42536 28.21 5 0.3051
mdbx 3.43 73000 14.79 2 0.0068
nf 14.82 112264 32.25 2 0.1612
protein 9.92 114136 45.90 2 0.1961
rnflow 11.24 171464 37.49 2 0.0960
test_fpu 9.49 154224 13.06 2 0.1263
tfft 1.15 26432 2.88 5 0.2609
Geometric Mean Execution Time = 18.18 seconds
================================================================================
...
Finished Testing 16 benchmarks - 16 passed, and 0 failed
compared to
================================================================================
Date & Time : 17 Jan 2009 18:03:59
Test Name : pbharness
Compile Command : gfc %n.f90 -m64 -O3 -ffast-math -funroll-loops
-ftree-loop-linear -fomit-frame-pointer -finline-limit=600 --param
min-vect-loop-bound=2 -o %n
Benchmarks : ac aermod air capacita channel doduc fatigue gas_dyn induct
linpk mdbx nf protein rnflow test_fpu tfft
Maximum Times : 300.0
Target Error % : 0.200
Minimum Repeats : 2
Maximum Repeats : 5
Benchmark Compile Executable Ave Run Number Estim
Name (secs) (bytes) (secs) Repeats Err %
--------- ------- ---------- ------- ------- ------
ac 2.38 42560 12.33 5 0.3327
aermod 86.86 1270544 29.86 2 0.0151
air 5.53 77336 8.39 5 0.2713
capacita 3.40 72760 55.49 5 0.5426
channel 1.98 38648 2.27 2 0.0000
doduc 11.42 200024 42.93 2 0.1456
fatigue 4.94 89024 10.83 5 0.2533
gas_dyn 6.61 708584 10.38 2 0.1541
induct 9.95 181168 34.41 2 0.0727
linpk 1.50 42536 27.98 2 0.0804
mdbx 3.30 73000 14.81 2 0.0911
nf 24.30 161416 32.06 4 0.1922
protein 10.54 126424 46.18 2 0.1646
rnflow 10.93 179616 36.00 2 0.0014
test_fpu 10.26 166512 12.45 2 0.0723
tfft 1.10 26432 2.86 5 0.2793
Geometric Mean Execution Time = 17.05 seconds
================================================================================
The 70% for gas_dyn turns to be more than a factor 2, and capacita is faster by
almost 20% with floop-block.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38846
