[Dockdev] opteron error
Tan Guangming
tgm at ncic.ac.cn
Thu Jan 20 05:51:30 PST 2005
Hello!
I compiled dock 5.1.1 on Opteron processor Linux platform, it shows the SEGMENTATION FAULT error message when I run the demo. I traced the program and found that one instruction j=iy/NDIV in the function Random_Number_Generator::independent_rand() gived the error,i.e. iy = 19371779413, NDIV=67108862, however, j = 8156!
Besides, the final results on AMD Opteron is different from that on Intel Xeon!
Xeon:
. ...
Orientations Passed : 231
.....
Energy score: -40.376114
vdw: -19.698305
es: -20.677811
Opteron:
. ...
Orientations Passed : 233
.....
Energy score: -50.252425
vdw: -23.808451
es: -21.243562
Why?
¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡
¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡Tan Guangming
National Research Center for Intelligent Computing Systems,
Institute of Computing Technology,
Chinese Academy of Sciences
6#, South Road, Kexueyuan, Zhongguancun,
Beijing, P.R.China
P.O.Box 2704 Zip Code 100080
Phone: 86-10-62565533 ext. 5730
¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡tgm at ncic.ac.cn
¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡2005-01-20
-------------- next part --------------
A non-text attachment was scrubbed...
Name: fox.gif
Type: image/gif
Size: 9519 bytes
Desc: not available
Url : http://blur.compbio.ucsf.edu/pipermail/dockdev/attachments/20050120/4caf61de/fox.gif
More information about the Dockdev
mailing list