<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
<title></title>
</head>
<body text="#000000" bgcolor="#ffffff">
On 4/07/2011 2:54 PM, Mr Bernard Ramos wrote:
<blockquote
cite="mid:1309755284.29499.YahooMailClassic@web161518.mail.bf1.yahoo.com"
type="cite">
<table border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td style="font: inherit;" valign="top">
<div>Hi everyone!</div>
<div> </div>
<div>I will be installing gromacs 4.5.x in another
computer but this time with four cores. The PC runs in
windows and I will be using cygwin. The instructions
says:</div>
<div> </div>
<div>"If you want to run in parallel across a network, you
need MPI. If you are running on a supercomputer you
probably already have an optimized MPI version installed
- consult your documentation or ask your system
administrator. See below for information about how to
make use of MPI. <em>As of GROMACS 4.5, threading is
supported, so for e.g multi-core workstations, MPI is
no longer required</em>"</div>
<div> </div>
<div> </div>
<div>The last note says that I do not have to install MPI.
Do I still need to install MPI using cygwin?</div>
</td>
</tr>
</tbody>
</table>
</blockquote>
<br>
Probably not, but I haven't tested threading on Cygwin.<br>
<br>
<blockquote
cite="mid:1309755284.29499.YahooMailClassic@web161518.mail.bf1.yahoo.com"
type="cite">
<table border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td style="font: inherit;" valign="top">
<div> Or cygwin/windows will do the MPI for me.</div>
</td>
</tr>
</tbody>
</table>
</blockquote>
<br>
Nothing will do MPI for you. Threading and MPI are complementary
approaches to achieving parallelism, and which is better depends on
your execution environment.<br>
<br>
Mark<br>
</body>
</html>