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git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@12592 f3b2605a-c512-4ea7-a41b-209d697bcdaa

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2014-10-07 15:08:33 +00:00
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doc/accelerate_omp.html
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@ -42,17 +42,27 @@ MPI task running on a CPU.
</P>
<P><B>Building LAMMPS with the USER-OMP package:</B>
</P>
<P>Include the package and build LAMMPS:
<P>To do this in one line, use the src/Make.py script, described in
<A HREF = "Section_start.html#start_4">Section 2.4</A> of the manual. Type "Make.py
-h" for help. If run from the src directory, this command will create
src/lmp_omp using src/MAKE/Makefile.mpi as the starting
Makefile.machine:
</P>
<PRE>Make.py -p omp -o omp file mpi
</PRE>
<P>Or you can follow these steps:
</P>
<PRE>cd lammps/src
make yes-user-omp
make machine
</PRE>
<P>The CCFLAGS setting in your src/MAKE/Makefile.machine needs "-fopenmp"
to add OpenMP support. This works for both the GNU and Intel
compilers. Without this flag the USER-OMP styles will still be
compiled and work, but will not support multi-threading. For the
Intel compilers the CCFLAGS setting also needs to include "-restrict".
<P>The CCFLAGS setting in Makefile.machine needs "-fopenmp" to add OpenMP
support. This works for both the GNU and Intel compilers. Without
this flag the USER-OMP styles will still be compiled and work, but
will not support multi-threading. For the Intel compilers the CCFLAGS
setting also needs to include "-restrict".
</P>
<P><B>Run with the USER-OMP package from the command line:</B>
</P>
<P>The mpirun or mpiexec command sets the total number of MPI tasks used
by LAMMPS (one or multiple per compute node) and the number of MPI