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New 2.4L version for linux x86_64!!!

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sunu:
I just spotted a new version of optimized apps for Linux x86_64 at Crunch3r's  page http://calbe.dw70.de/seti.html

A quick note though. If you copy the new files over the old ones, all your already downloaded workunits will be errored out. You need to modify your app_info.xml file accordingly as per Richard Haselgrove's post here http://setiathome.berkeley.edu//forum_thread.php?id=31810&nowrap=true#627698

If you have the previous 2.4 version, it should be something like this:

<app_info>

    <app>

        <name>setiathome_enhanced</name>

    </app>

    <file_info>

        <name>setiathome-5.15.x86_64-unknown-linux-gnu</name>

        <executable/>

    </file_info>

    <app_version>

        <app_name>setiathome_enhanced</app_name>

        <version_num>521</version_num>

        <file_ref>

            <file_name>setiathome-5.15.x86_64-unknown-linux-gnu</file_name>

            <main_program/>

        </file_ref>

    </app_version>

    <app_version>

        <app_name>setiathome_enhanced</app_name>

        <version_num>528</version_num>

        <file_ref>

           <file_name>setiathome-5.15.x86_64-unknown-linux-gnu</file_name>

            <main_program/>

        </file_ref>

    </app_version>

</app_info>

Rok:
Wonder what kind of speed enhancements this gets...
My A64 2.7ghz cpu running x86_64 Suse 10.2 nearly gets beat by a Athlon XP 2600 running windows XP..

heck.. a Pentium D running at 3.2 ghz on Xp is almost twice as fast as my A64.

here is a WU where a P4 2.8ghz (using SSE1) beats my A64.  Blegh..

http://setiathome.berkeley.edu/workunit.php?wuid=155290966

Anybody getting similar results from the x86_64 clients? I expected it to be on par with 32bit versions.. but wow.. its slower..

Crunch3r:

--- Quote from: Rok on 09 Sep 2007, 12:41:16 pm ---Wonder what kind of speed enhancements this gets...
My A64 2.7ghz cpu running x86_64 Suse 10.2 nearly gets beat by a Athlon XP 2600 running windows XP..

--- End quote ---
Things should look a bit better with the 2.4L version now. However 2.4L might not be the last release for x64 ;)


--- Quote ---heck.. a Pentium D running at 3.2 ghz on Xp is almost twice as fast as my A64.

--- End quote ---

Of course it is faster. A Pentium D has 2048 kb L2 cache per core and your A64 only 512 kb.

Rok:
But my A64 smokes a 3+ ghz Pent D on Windows XP 32!

I am running your 32bit version, and it seems faster. I am now getting scores on par with non optimized Core2s running Berkeleys 32 bit version.

With Berkeley purging completed WU faster these days, its harder to keep track. Do you have any way of benchmarking on Linux? I saw where Astro had benchmarked different AR wus on XP et al, but nothing in Linux land.

sunu:

--- Quote from: Rok on 10 Sep 2007, 02:17:18 pm ---Do you have any way of benchmarking on Linux? I saw where Astro had benchmarked different AR wus on XP et al, but nothing in Linux land.

--- End quote ---

I have a Q6600 running Ubuntu 7.04 64bit. Checking a sample of completed workunits I beat every processor with non-optimized clients and processors with optimized clients up to Core 2 Duos with comparable speed (2.4 Ghz).

There are exceptions to the above (the second statement about optimized clients) but are rare, especially lower Core 2 Duos highly overclocked (above 3 Ghz).

I'm now using the new 2.4L 64bit client and I have a feeling that it is a little faster than the previous 2.4 client. I don't have hard numbers, but I think there is a real speed improvement.


--- Quote from: Crunch3r on 10 Sep 2007, 01:14:17 pm ---However 2.4L might not be the last release for x64 ;)

--- End quote ---

Way to go, man!!!

Keep up the good work!

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