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>

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


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

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.


Way to go, man!!!

Keep up the good work!

You could run linux version of knabench (downloadable from this site).
It's very interesting to compare linux & windows versions on the same host...

I have a Q6600, dual booting WinXP Pro and RHEL5 x86-64. So far I've tried the 32-bit Windows client (Simon, 2.4) and on Linux I've tried the 64-bit 2.4 (Simon) and 2.4L (Crunch3r), and I can't see any noticeable difference between them comparing times for batches of similar WUs.

About the only thing I've yet to try is a 32-bit Linux client on my RHEL5 x86-64.