git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@12465 f3b2605a-c512-4ea7-a41b-209d697bcdaa

This commit is contained in:
sjplimp
2014-09-10 15:47:24 +00:00
parent e8780fc49d
commit 1025e266b1
6 changed files with 62 additions and 65 deletions

View File

@ -155,13 +155,13 @@ mpirun -np 48 -ppn 12 lmp_machine -sf gpu -pk gpu 2 -in in.script # ditto on 4
</PRE>
<P>Note that if the "-sf gpu" switch is used, it also issues a default
<A HREF = "package.html">package gpu 1</A> command, which sets the number of
GPUs/node to use to 1.
GPUs/node to 1.
</P>
<P>Using the "-pk" switch explicitly allows for direct setting of the
number of GPUs/node to use and additional options. Its syntax is the
same as same as the "package gpu" command. See the
<A HREF = "package.html">package</A> command doc page for details, including the
default values used for all its options if it is not specified.
<P>Using the "-pk" switch explicitly allows for setting of the number of
GPUs/node to use and additional options. Its syntax is the same as
same as the "package gpu" command. See the <A HREF = "package.html">package</A>
command doc page for details, including the default values used for
all its options if it is not specified.
</P>
<P><B>Or run with the GPU package by editing an input script:</B>
</P>
@ -178,11 +178,6 @@ GPU package, unless the "-sf gpu" or "-pk gpu" <A HREF = "Section_start.html#sta
switches</A> were used. It specifies the
number of GPUs/node to use, as well as other options.
</P>
<P>IMPORTANT NOTE: The input script must also use a newton pairwise
setting of <I>off</I> in order to use GPU package pair styles. This can be
set via the <A HREF = "package.html">package gpu</A> or <A HREF = "newton.html">newton</A>
commands.
</P>
<P><B>Speed-ups to expect:</B>
</P>
<P>The performance of a GPU versus a multi-core CPU is a function of your