Thank you very much Mark. Another question, will be better if I compile FFTW than use the one included in my linux distro? <br><br>Anthony<br><br><div class="gmail_quote">On Tue, Jul 5, 2011 at 11:08 AM, Mark Abraham <span dir="ltr"><<a href="mailto:Mark.Abraham@anu.edu.au">Mark.Abraham@anu.edu.au</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div class="im">On 6/07/2011 12:28 AM, Matthew Zwier wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Sorry about that.<br>
<br>
The default options are nearly optimal, and the difference between a<br>
modern (4.4 or 4.5) series GCC and the Intel compilers are only a<br>
couple of percent. Just be sure to have FFTW available.<br>
</blockquote>
<br></div>
... if planning to use PME. Also, Intel MKL is only a percent or two faster than FFTW3, last I tested, but much more fiddly to link.<br><font color="#888888">
<br>
Mark</font><div><div></div><div class="h5"><br>
<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
On Tue, Jul 5, 2011 at 10:26 AM, Matthew Zwier<<a href="mailto:mczwier@gmail.com" target="_blank">mczwier@gmail.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Hi Anthony,<br>
<br>
The default options are nearly optimal, and the difference between a<br>
modern (4.4 or 4.5) GCC<br>
<br>
On Tue, Jul 5, 2011 at 10:01 AM, Anthony Cruz Balberdi<br>
<<a href="mailto:anthony.cruz5@upr.edu" target="_blank">anthony.cruz5@upr.edu</a>> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Dear Users:<br>
<br>
We recently received our new computer. This computer have 4 multicore<br>
Opteron AMD cpus and I am planning to install GROMAS. Which options I will<br>
need to use in order to achieve the best possible performance?<br>
Which compiler GNU or Intel?<br>
<br>
Thank you for all you help.<br>
<br>
Anthony<br>
<br>
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