Hi,<div><br></div><div>one more:</div><div><br></div><div>Cray has this annoying thing that it has some additional output for its compiler wrappers.</div><div><br></div><div>One has to set<br></div><div> export XTPE_INFO_MESSAGE_OFF=yes</div>
<div>otherwise all cc always returns</div><div> /opt/cray/xt-asyncpe/3.7/bin/cc: INFO: linux target is being used </div><div>on stderr and thus test compiler tests checking the stderr don't work. </div><div>
<br></div><div>Why is it that the stderr</div><div><br></div><div>I'm not sure how to handle this best</div><div>1) tell user they have to set XTPE_INFO_MESSAGE_OFF</div><div>2) set XTPE_INFO_MESSAGE_OFF in configure (it doesn't has any other affect but deactivating the message - so it should be fine)</div>
<div>3) ignore this (andalso similar?) messages on stderr </div><div><br></div><div>Roland</div><div><br></div><div><br><div class="gmail_quote">On Wed, Jun 30, 2010 at 5:39 PM, Roland Schulz <span dir="ltr"><<a href="mailto:roland@utk.edu">roland@utk.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><br><br><div class="gmail_quote"><div class="im">On Wed, Jun 30, 2010 at 7:56 AM, Sander Pronk <span dir="ltr"><<a href="mailto:pronk@cbr.su.se" target="_blank">pronk@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">
I've implemented auto-detection of the CFLAGS (and CXXFLAGS). Right now, it works for gcc and icc. There are a few compilers I'd like to add, that I don't have access to. Specifically:<br>
<br>
xlc on Linux and AIX<br>
the pgi compilers on x86<br></blockquote></div><div>-fastsse. </div><div>Not sure whether IPA helps. If one wants IEEE correct math one needs to add -Kieee. Does someone know whether this is required for GROMACS? One can also gain with GCC by adding -ffast-math. Is this safe?</div>
<div>Currently PGI doesn't compile. But Peter told me he has a patch almost ready.</div><div><br></div><div>Pathscale:</div><div>-O3 -OPT:Ofast -fno-math-errno -ffast-math (if fast-math and no-math-errno is OK, again not sure if ipa helps)</div>
<div class="im">
<div><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">and any compiler on Bluegene.<br></blockquote></div>-O3 -qarch=auto -qtune=auto<div class="im"><br><div>
</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
Would anybody who has insight on what compiler options to set (and test for) on these platforms, mind looking at cmake/gmxCFlags.cmake or tell me what they think should be added?<br>
<br>
I'm specifically looking for how to enable syntactical elements (like inline functions) and how to set the best optimization and debug settings.</blockquote><div><br></div></div><div>I hope this helps. Let me know if you need something further or want me to test something.</div>
<div><br></div><div>Roland</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><font color="#888888"><font color="#000000"><br>
</font></font><font color="#888888">
<br>
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</div></font></blockquote></div><br><br clear="all"><div><div></div><div class="h5"><br>-- <br>ORNL/UT Center for Molecular Biophysics <a href="http://cmb.ornl.gov" target="_blank">cmb.ornl.gov</a><br>865-241-1537, ORNL PO BOX 2008 MS6309<br>
</div></div></blockquote></div><br><br clear="all"><br>-- <br>ORNL/UT Center for Molecular Biophysics <a href="http://cmb.ornl.gov">cmb.ornl.gov</a><br>865-241-1537, ORNL PO BOX 2008 MS6309<br>
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