[parsec-users] Fw: amount of vectorizing instruction

Fahimeh Yazdanpanah fahim_yazdan at yahoo.com
Sat Apr 4 17:14:00 EDT 2009


I have found my mistake was in vectorizing flags, so my problem about the amount of vectoriez instruction has been solved.

thanks a lot

--- On Sat, 4/4/09, Fahimeh Yazdanpanah <fahim_yazdan at yahoo.com> wrote:
From: Fahimeh Yazdanpanah <fahim_yazdan at yahoo.com>
Subject: amount of vectorizing instruction
To: "PARSEC Users" <parsec-users at lists.cs.princeton.edu>
Date: Saturday, April 4, 2009, 12:07 PM


I have been trying to determine how many instructions of parsec packages can be in  vectorizing categories (SSE, SSE2, MMx and simd) using vectorization flags and gcc 4.3.3. But, I surprizingly found most of the loops of codes are not vectorized. So only few packages, (such as x264, streamclster and  fluidanimate) have considerable amout of vectoring instructions and for most of them this amount is less than 1% ! 
If any one has the same experience, please let me know whether these results are correct or I have done something wrong.
Thanks a lt,
kind regards,


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