Profile: jiancheng
Your personal background.
Your opinions about Einstein@Home
<p>In general, Einstein@Home in windows platforms is faster than that in linux. I think it is the difference of compilers between MS Visual C/C++ and GNU C/C++. Take my computers as the example, Windows of P3-933Mhz score is higher than Linux of P4-1.6Ghz. Maybe the compiler in the windows did some optimization techniques for BOINC. If you run BOINC and Einstein@home in linux platforms, I encourage you to do following,

    <li>download WINE (install apt-get and then "apt-get install wine")</li>
    <li>winecfg to get a default windows environment configuration</li>
    <li>download BOINC for windows</li>
    <li>wine boinc_setup.exe</li>
    <li>go to ~/.wine/drive_c/Program\ Files/BOINC</li>
    <li>wine boinc_cli.exe 2>/dev/null</li>


And then it is just like the version of console linux</p>
<p>
Here is the experimental results in P4-1.6Ghz. original FC3 linux version: 5xx Whetstone, 15xx Dhrystone. windows emulator version: 8xx Whetstone, 20xx Dhrystone
</p>
<p>
WINE is the windows emulator. But it's not a emulator of x86 instructions. It just creates an environment to run windows programs. Intel x86 CPU still runs instructions of windows programs.</p>

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This material is based upon work supported by the National Science Foundation (NSF) under Grant NSF-0200852 and by the Max Planck Gesellschaft (MPG). Any opinions, findings, and conclusions or recommendations expressed in this material are those of the investigators and do not necessarily reflect the views of the NSF or the MPG.

Copyright © 2009 Bruce Allen for the LIGO Scientific Collaboration