Pgi Atlas on Linux_Athlon

Yoon Jae Ho yoon at bh.kyungpook.ac.kr
Mon Nov 19 00:54:32 EST 2001


I found your test matrix size is very small. (The matrix size N  1000 x 1000).
That make you got not so good results with PGI-ATLAS on Linux Based ATHLON. 
It is not related to PGI compiler nor Athlon CPU or Network.
Will you increase your matrix size to N 3000 x 3000 or 5000 x 5000 if you have enough Local Memory(RAM) ?

Have a nice day !

Yoon Jae Ho, Seoul,Korea
 

----- Original Message ----- 
From: Eswar Dev <eswardev at yahoo.com>
To: <beowulf at beowulf.org>
Sent: Saturday, November 17, 2001 3:15 AM
Subject: Pgi Atlas on Linux_Athlon


> Hi!
>   I am getting bad results with PGI-ATLAS on LInux
> Based ATHLON. 
>   I need to get more speed up then what it shows hear.
> Does any one had similar problems. Help needed
> Thanks!!!!
> -Eswarkumar
> visit:http://atlantis.engr.odu.edu:8080
> ______________________________________________________
>    
>  This is for ./xsl3blastst
> ------------- GEMM ----------------------------------
> TST# A B    M    N    K ALPHA  LDA  LDB  BETA  LDC 
> TIME MFLOP SpUp  TEST
> ==== = = ==== ==== ==== ===== ==== ==== ===== ====
> ===== ==== =====
>    0 N N  100  100  100   1.0 1000 1000   1.0 1000 
> 0.00   0.0 1.00 -----
>    0 N N  100  100  100   1.0 1000 1000   1.0 1000 
> 0.00   0.0 0.00 PASS 
>    1 N N  200  200  200   1.0 1000 1000   1.0 1000 
> 0.06 266.7 1.00 -----
>    1 N N  200  200  200   1.0 1000 1000   1.0 1000 
> 0.06 266.7 1.00 PASS 
>    2 N N  300  300  300   1.0 1000 1000   1.0 1000 
> 0.28 192.9 1.00 -----
>    2 N N  300  300  300   1.0 1000 1000   1.0 1000 
> 0.21 257.1 1.33 PASS 
>    3 N N  400  400  400   1.0 1000 1000   1.0 1000 
> 0.91 140.7 1.00 -----
>    3 N N  400  400  400   1.0 1000 1000   1.0 1000 
> 0.51 251.0 1.78 PASS 
>    4 N N  500  500  500   1.0 1000 1000   1.0 1000 
> 2.07 120.8 1.00 -----
>    4 N N  500  500  500   1.0 1000 1000   1.0 1000 
> 0.99 252.5 2.09 PASS 
>    5 N N  600  600  600   1.0 1000 1000   1.0 1000 
> 3.85 112.2 1.00 -----
>    5 N N  600  600  600   1.0 1000 1000   1.0 1000 
> 1.69 255.6 2.28 PASS 
>    6 N N  700  700  700   1.0 1000 1000   1.0 1000 
> 6.26 109.6 1.00 -----
>    6 N N  700  700  700   1.0 1000 1000   1.0 1000 
> 2.70 254.1 2.32 PASS 
>    7 N N  800  800  800   1.0 1000 1000   1.0 1000 
> 9.44 108.5 1.00 -----
>    7 N N  800  800  800   1.0 1000 1000   1.0 1000 
> 4.03 254.1 2.34 PASS 
>    8 N N  900  900  900   1.0 1000 1000   1.0 1000
> 13.47 108.2 1.00 -----
>    8 N N  900  900  900   1.0 1000 1000   1.0 1000 
> 5.72 254.9 2.35 PASS 
>    9 N N 1000 1000 1000   1.0 1000 1000   1.0 1000
> 18.39 108.8 1.00 -----
>    9 N N 1000 1000 1000   1.0 1000 1000   1.0 1000 
> 7.87 254.1 2.34 PASS 
> 
> 10 tests run, 10 passed
> 

---------------------------------------------------------------------
Yoon Jae Ho
Economist
POSCO Research Institute
 
yoon at bh.kyungpook.ac.kr
jhyoon at mail.posri.re.kr
http://ie.korea.ac.kr/~supercom/  Korea Beowulf Supercomputer
http://members.ud.com/services/teams/team.htm?id=264C68D5-CB71-429F-923D-8614F419065D     Help the people with your PC 
 
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