V8 Optimized App

[RottenMutt]

can someone compile a windows V8 app using Alex's code which can be downloaded from this threadhttp://setiathome.berkeley.edu/forum_thread.php?id=31810&nowrap=true#656269

i would think this would benifit Quads as well

[RottenMutt]

thank you for the V8 port to windows:)
my bigest gain is on my 6700 dual core cpu, it went from 2400 RAC to 3700 RAC (54% improvement)!!!
my V8 went from 5200 RAC to 8000 RAC (hey that is a 54% improvement too)
my Quads are not doing as well, i haven't figured that out yet, Q6700 and Q9300, both around 3.5GHz.
Even my AMD machines, dual 270's and dual 2216's, have seen an improvement.

[sinj]

I noticed that seti has gone to version 603. Can I modify my appinfo.xml and run v8 against this on win64?

[Raistmer]

If you already run opt app you can just do nothing and continue crunching as before.
If you use stock version now, yes you should edit app_info.xml. Look at it's structure, find block that contains
    <app_version>
        <app_name>setiathome_enhanced</app_name>
        <version_num>528</version_num>
...............
    </app_version>
dublicate this block and replace 528 on 603.

[Slawek]

Hi,
 i have one question about.. 64 bit OS.. 64 bit incresed performance computing ?

[sunu]

At least for SETI, there isn't a big difference. Only a (very?) small increase for 64bit

[Raistmer]

Hi,
 i have one question about.. 64 bit OS.. 64 bit incresed performance computing ?

Windows OSes have see speed increase for x64 opt AK_v8 apps. Even SSE2 version will showsom speedup.

[Slawek]

Hi,
 i have one question about.. 64 bit OS.. 64 bit incresed performance computing ?

Windows OSes have see speed increase for x64 opt AK_v8 apps. Even SSE2 version will showsom speedup.

Hi.. again i have question...

If i have 64 bit OS for more performance.. what version APP ? 64 bit or 32 bit ?

[Raistmer]

x64 one.
BTW you cold do tests for your own PC and report results. There was some very nice timings table for older opr app - it would be nice to collect something similar for current AK v8

[Slawek]

Hello

64 bit version OS and computing..  runing

[elec999]

I have a Tyan with two xeons quad cores x2, this is 8 cores all together, no gpu, should I be using this app on it. I am currently using the Windows 32 bit AK v8.0 SSE4.1. Would this give me better results.
Thank you

[Jason G]

You might get ~1%, or so, better performance out of the SSSE3x build due to a certain optimisation designed exactly for machines liek that (x-->xeon).  You'd probably get a much bigger improvement (5-10% maybe ?) if you were able to use a 64-bit OS and the 64 bit build.  I would guess on a machine like that, 5-10% would be considered 'significant'.

Jason