[cig-commits] r22852 - seismo/2D/SPECFEM2D/trunk/doc/USER_MANUAL

dkomati1 at geodynamics.org dkomati1 at geodynamics.org
Wed Sep 25 18:15:42 PDT 2013


Author: dkomati1
Date: 2013-09-25 18:15:42 -0700 (Wed, 25 Sep 2013)
New Revision: 22852

Modified:
   seismo/2D/SPECFEM2D/trunk/doc/USER_MANUAL/manual_SPECFEM2D.tex
Log:
removed the sentence about -mcmodel from the manual


Modified: seismo/2D/SPECFEM2D/trunk/doc/USER_MANUAL/manual_SPECFEM2D.tex
===================================================================
--- seismo/2D/SPECFEM2D/trunk/doc/USER_MANUAL/manual_SPECFEM2D.tex	2013-09-26 01:04:08 UTC (rev 22851)
+++ seismo/2D/SPECFEM2D/trunk/doc/USER_MANUAL/manual_SPECFEM2D.tex	2013-09-26 01:15:42 UTC (rev 22852)
@@ -359,14 +359,6 @@
 \end{lyxcode}
 to create all executables which will be placed into the folder \texttt{./bin/}.
 
-If you run very large meshes on a relatively small number
-of processors, the memory size needed on each processor might become
-greater than 2 gigabytes, which is the upper limit for 32-bit addressing.
-In this case, on some compilers you may need to add \texttt{``-mcmodel=medium}'' or \texttt{``-mcmodel=medium -shared-intel}''
-to the configure options of CFLAGS, FCFLAGS and LDFLAGS otherwise the compiler will display an error
-message (for instance \texttt{``relocation truncated to fit: R\_X86\_64\_PC32 against .bss''} or something similar);
-on an IBM machine with the \texttt{xlf} and \texttt{xlc} compilers, using \texttt{-q64} is usually sufficient.
-
 By default, the solver runs in single precision. This is fine for most application, but if for some reason
 you want to run the solver in double precision, run the \texttt{configure} script with option \texttt{``--enable-double-precision}''.
 Keep in mind that this will of course double total memory size and will also make the solver around 20 to 30\% slower



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