<div dir="ltr">On Tue, Mar 5, 2013 at 2:23 PM, Dharmendar Reddy <span dir="ltr"><<a href="mailto:dharmareddy84@gmail.com" target="_blank">dharmareddy84@gmail.com</a>></span> wrote:<br><div class="gmail_extra"><div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br> Has any one installed petsc on the AMD 6200 series processor systems? I have a small cluster with quad socket AMD 6274 (16Core) processors. Should i use any special optimization flags or let petsc configure script decide ?<br clear="all">
<br>I would like have two flavors of the instillation:<br><ol><li> intel 13.2 compilers using intel mpi and intel MKL 11.0</li><li> intel 13.2 compilers using intel mpi and ACML 5.3 compile with intel. Now ACML has a weird organization of the libraries. It has same names for both the 64bit and 32 bit integer libraries but saved in different folders. Should i link to single thread or multithreaded acml ?</li>
</ol></blockquote><div style>Single-threaded.</div><div style><br></div><div style>No special optimization flags, but bear in mind that Intel compilers (and MKL) have the "run slower on AMD" feature.</div><div style>
<br></div><div style>Compiler optimizations usually do not affect PETSc too much because most operations are memory bandwidth limited and the compute kernels are written in a form that is easy to optimize.</div></div></div>
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