Hi,<div><br></div><div>we have a simulation in our group (Xiaohu's system) which shows much larger energy fluctuations (on a ~10ns time-scale) if compiled with 4.1.2. These fluctuation are large enough for the system to explode infrequently. The system behaves as expected (without the large fluctuations/explosions) when compiled with 4.4.4.</div>
<div><br></div><div>Roland<br><br><div class="gmail_quote">On Thu, Jun 24, 2010 at 11:05 AM, Berk Hess <span dir="ltr"><<a href="mailto:hess@cbr.su.se">hess@cbr.su.se</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Hi,<br>
<br>
We just found out a that a bug that frequently showed up and we thought<br>
might be due to a bug in gcc 4.1<br>
was actually a bug in the GB sse2 (not sse3) code that only got<br>
triggered with gcc 4.1 with -O2 or -O3.<br>
<br>
So my question is now:<br>
Do you know of any issues with gcc 4.1.x on non-GB simulations?<br>
<br>
Thanks,<br>
<br>
Berk<br>
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