AMD test_fpu results 
Author Message
 AMD test_fpu results

A regular c.l.f.  poster who doesnt want to be identified,
has just sent following results..

<<<
Dave
I figured you might be interested in these new results for the
AMD Athlon processor. I also recompiled TEST_FPU using the latest
Digital Visual fortran compiler DVF6.0B3 (executable enclosed).

I did these measurements out of my own interest, and AMD has
nothing to do with these results. So please don't list my
company affiliation or email address in your result summary.
Thanks!

Date run = 1999/08/07

Tester name/ net address =
CPU Id/Mhz/Cache = AMD Athlon/ 550 / 512K
O.S. / Compiler / Switches = Windows98 / download
Additional comments =

Test1 - Gauss 2000 (51x51) inverts=   2.3 sec  Err= 0.000000000000004
Test2 - Crout 2000 (51x51) inverts=   3.7 sec  Err= 0.000000000000010
Test3 - Crout  2 (501x501) inverts=   4.8 sec  Err= 0.000000000000024
Test4 - Lapack 2 (501x501) inverts=   1.4 sec  Err= 0.000000000000136
                             total = 12.2 sec

Date run = 1999/08/07

Tester name/ net address =
CPU Id/Mhz/Cache = AMD Athlon / 550 / 512K
O.S. / Compiler / Switches = Windows98 / DVF6.0B3 / -optimize:5 -fast
-arch:p6 -tune:p6
Additional comments = linked with intel.lib (executable included below)

Test1 - Gauss 2000 (51x51) inverts=   2.4 sec  Err= 0.000000000000004
Test2 - Crout 2000 (51x51) inverts=   2.8 sec  Err= 0.000000000000002
Test3 - Crout  2 (501x501) inverts=   4.8 sec  Err= 0.000000000000183
Test4 - Lapack 2 (501x501) inverts=   1.4 sec  Err= 0.000000000000751
                             total = 11.4 sec

These results are about same as those for fastest SGI, but not as fast
as fastest ALPHA by 3 sec..
Intel 600mhz results are persumed to be slightly faster yet, but then
AMD 650 mhz model (to be released next week) would probably be faster
and would appear to challenge even fastest ALPHA at a much
reduced cost..

BTW,
anyone wishing to download TEST_FPU.EXE and test on
their wintel system, or compile/run TEST_FPU.F90 on their system
as above tester has done, can find these files at:        
ftp://members.aol.com/davegemini/TEST

(see TEST_FPU.TXT for results/instructions)...

Dave



Thu, 24 Jan 2002 03:00:00 GMT  
 AMD test_fpu results
whoops,
I meant to post this in comp.lang.fortran
but perhaps the info is useful/pertinent in this ng as well..

Dave



Thu, 24 Jan 2002 03:00:00 GMT  
 
 [ 2 post ] 

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