[parsec-users] the OpenMP version blackscholes has No speedup when has more than 4 cores

Eric Lu eirc.lew at gmail.com
Mon Oct 14 21:34:58 EDT 2013


Hi,

I run PARSEC2.1 on Intel E7520 machine, the os is centos6.3, the gcc-4.7
compiler. The machine has 32 cores in total, and the results seems
blackscholes has too poor performance.
The data shows as follow:
OpenMP
proc blackscholes
1 0.998269
2 1.80499
4 1.763301
8 1.550916
16 1.542871
32 2.508076



Best Regards!


Eric
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.cs.princeton.edu/pipermail/parsec-users/attachments/20131015/c082fde4/attachment.htm>


More information about the parsec-users mailing list