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<div class="moz-cite-prefix">Dear all,<br>
just to follow up, indeed my experience on the Cray system
rosa.cscs.ch was similar to Filippo's one, i.e. Intel compiler
working, CRAY compiler not working. The only difference being that
I wasn't able to compile with PGI (probably because I wasn't aware
of the IOTK workaround debug flag, and then I stopped trying when
the intel compilation worked).<br>
<br>
Giovanni<br>
<br>
<br>
On 08/16/2012 05:21 PM, Filippo Spiga wrote:<br>
</div>
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cite="mid:3CDD9222-99B8-4ED5-8F17-EDC9674B952D@gmail.com"
type="cite">
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<div>Dear Paolo,</div>
<div><br>
</div>
<div>On Aug 16, 2012, at 10:12 PM, Paolo Giannozzi <<a
moz-do-not-send="true" href="mailto:giannozz@democritos.it">giannozz@democritos.it</a>>
wrote:</div>
<blockquote type="cite">On Aug 16, 2012, at 11:51 , Filippo
Spiga wrote:<br>
<br>
<blockquote type="cite">I do not see a any reasonable reason
to compile QE using Intel compiler on a CRAY, the PGI
compiler (usually the default) works. Moreover it is weird
that mpif90 is called because CRAY systems the correct
FORTRAN compiler is always "ftn" (that is actually a wrapper
to whatever compiler is selected through the modules
loaded). Anyway, I am currently using the CRAY XE6 installed
at CSCS in Switzerland (MonteRosa) and I simply use the PGI
compiler and the default CRAY LibSci.<br>
</blockquote>
<br>
before leaving for vacations, I had a different report by
Giovanni Pizzi (CC: here) for<br>
exactly the same machine: various problems with the cray
compiler, either in the<br>
compilation phase or in execution. I was surprised because the
ftn compiler on cray<br>
has always been working very reliably. Did you need
./configure --disable-wrappers<br>
to prevent ./configure from stopping in the C-to-fortran
interface check, by the way?<br>
</blockquote>
<div><br>
</div>
<div>From my experience no, I never had big or blocking problems
with the ftn/cc wrappers. However I have to admit that despite
CRAY provide an "uniform and fairly easy" environment, every
machine is unique. My experience on CRAY systems can be
summarized in this way:</div>
<div>- PGI compiler (loading pgi-env) + CRAY LibSci + ftn/cc
wrappers --> ok </div>
<div>- CRAY compiler (loading cray-env) + CRAY LibSci + ftn/cc
wrappers --> compilation fails</div>
<div>- PGI compiler (loading pgi-env) + CRAY LibSci + ftn/cc
wrappers + CUDA (XK6 machines) --> ok </div>
<div>
<div>- Intel compiler (loading intel-env) + MKL + ftn/cc
wrappers + CUDA (XK6 machines) --> ok (but I tried only
few times)</div>
<div>- Intel compiler (loading intel-env) + ACML + ftn/cc
wrappers + CUDA (XK6 machines) --> ok (but I tried only
few times)</div>
<div><br>
</div>
<div>On a CRAY testing machine (so, not a common case) I had
to unload some modules ("$ <span style="font-family: Arial;
">module unload atp totalview-support xt-totalview
hss-llm"), </span><span style="font-family: Arial; ">This
is the only "weird" thing I did to compile and run QE.</span></div>
<div><br>
</div>
</div>
<div>I did not mention in my previous email the option
"--disable-wrapper: because I was curious to hear from Miller
if using PGI compiler (instead of Intel) and "ARCH=crayxt" was
enough to solve the problem. Of course if something goes wrong
the first thing that I probably would suggest is to try
--disable-wrapper but also I would check if there is some
error/mistake/typo in the modulefile. That's something that
the user support people should do, not the user.</div>
<div><br>
</div>
<div>
<div>@Giovanni, I wrote an email to Emine with some hints
related to Monte Rosa. She has more details for that
specific machine.</div>
<div><br>
</div>
</div>
<div>HTH</div>
<div><br>
</div>
</div>
<div>Ciao!</div>
<div>F.</div>
<div> </div>
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<div
style="word-wrap:
break-word;
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space;
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after-white-space;
">--<br>
Mr. Filippo
SPIGA, M.Sc.,
Ph.D.
Candidate <br>
CADMOS - Chair
of Numerical
Algorithms and
HPC (ANCHP)<br>
École
Polytechnique
Fédérale
de Lausanne
(EPFL)<br>
<a
moz-do-not-send="true"
href="http://anchp.epfl.ch">http://anchp.epfl.ch</a> ~ <a
moz-do-not-send="true"
href="http://filippospiga.me">http://filippospiga.me</a> ~ skype:
filippo.spiga<br>
<br>
«Nobody will
drive us out
of
Cantor's paradise.»
~ David
Hilbert</div>
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<br>
</blockquote>
<br>
<br>
<pre class="moz-signature" cols="72">--
Giovanni Pizzi
Post-doctoral Research Scientist
EPFL STI IMX THEOS
MXC 319 (Bâtiment MXC)
Station 12
CH-1015 Lausanne (Switzerland)
Phone: +41 21 69 31159
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