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<font face="Ubuntu">Thanks, but I'd rather use Cray since only a
small part of my code relies on PETSc and, as suggested by the BW
staff,<br>
Cray-compiled code performs generally better on Cray system.<br>
<br>
Michele <br>
<br>
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<div class="moz-cite-prefix">On 05/31/2013 02:57 PM, Jed Brown
wrote:<br>
</div>
<blockquote cite="mid:8761xyrex8.fsf@mcs.anl.gov" type="cite">
<pre wrap="">Michele Rosso <a class="moz-txt-link-rfc2396E" href="mailto:mrosso@uci.edu"><mrosso@uci.edu></a> writes:
</pre>
<blockquote type="cite">
<pre wrap="">Hi,
I confirm that
-pc_type gamg -pc_mg_cycle_type v -pc_gamg_agg_nsmooths 1
produces the correct shift in PETSc 3.4.
So my problem is solved. I will upgrade to 3.4 in my productive
machine installation.
It is a Cray machine (Blue Waters). Assuming I want to use the Cray
compiler, which options should I use for ./configure
for the installation.
</pre>
</blockquote>
<pre wrap="">
Or the Intel compiler or GCC. PETSc should run at similar speed with
any. IIRC, Cray recommends the Intel compiler on their machines with
Intel CPUs. There are examples in config/examples/.
</pre>
</blockquote>
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