[SCore-users] the problems about the NAS benchmarks on Omni/scash

[Mitsuhisa Sato]

Dear Dr. Wu Shaogang,

Thank you for your information.
We have tested only CG and SP, BT on the SCore Cluster with Myrinet.
We at U. of Tsukuba are currently testing them using ethernet.
I think for ethernet we need more improvement of Omni/SCASH and
program tuning for locality to get speedups.
I will be happy if you give us any suggestion.

Best regards, 
-- M. Sato.

From: wsg <wsg at ict.ac.cn>
Subject: [SCore-users] the problems about the NAS benchmarks on Omni/scash
Date: Wed, 21 Aug 2002 10:28:48 +0800

> Hi,everyone,
> I met the following problems on testing NAS benchmarks downloaded from www.pccluster.org:
> 1. Only CG, EP, FT pass the full test successfully, the result is:
>   				1X1		2X1		1X2		4X1		2X2		4X2		
>   CG	CLASS=W	19.48	46.77	14.15	56.57	46.51	110.65
>   EP	CLASS=W	63.16	32.89	34.16	17.32	17.88	10.50
>   FT	CLASS=W	15.72	17.74	9.68	18.37	15.78	21.84
>   BT	CLASS=S	8.10	62.67	NAN		79.39	NAN		NAN
>   LU	CLASS=W	911.7	859.13*	1408.06	868.64*	DEAD	DEAD
>   MG	CLASS=W	19.10	ERR	ERR	ERR	ERR	ERR
>   SP	CLASS=S	6.10	861.72	16.90	1232.15	1250.16	DEAD
>  
>  Note:
>  our testbed: 4 nodes(with 2 PIII/700MHz processsors per node), 100M switch Ethernet
>  Operating System: RedHat 7.3(kernel-2.4.18)
>  compile option: 
> 	CC		= omcc -omniconfig=scash -t
> 	CLINK		= omcc -omniconfig=scash -t
> 	C_LIB		=(none)
> 	C_INC		= -I../common
> 	CFLAGS		=(none)
> 	CLINKFLAGS	= omcc -omniconfig=scash -lm
> 	RAND		=(none)
> 
>  NAN: the result is error because NAN comes out in the result.
>  ERR: the program can't run.
>  DEAD: the program can't display the result, like dead-lock.
>   * : the result display the verification is unsuccessful.
> 
> 2. MG can pass the 1x1 testing, but under other modes, the fault "VM Fault out of DSM area" comes out.
> 
> 3. the time in the IS program is error. the run time is always 0.0
> 
> 4. LU can only pass the 1x1 testing successfully. 
> 
> I don't know who meet the above problems. Who can solve them?
> 
> Sincerely,
> Wu Shaogang
> --------------------
> Computer Architecture Research Lab
> Institute of Computing Technology
> Chinese Academy of Sciences
> P.O.Box: 2704-25#
> Zip code: 100080
> Beijing,P.R.China
> Tel: +86-10-62559641(office)
> Email: wsg at ict.ac.cn
> 
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