I am actually using MPICH2 1.2.1, and don't have MPICH installed yet. I was looking for the environment variable that gives me the control to the eager/rendezvous protocol, but only found "MPICH_LONGVLONGTHRESH" in the MPICH document, "Installation and User's Guide to MPICH, version 1.2.7".<br>
<br>Bin<br><br><div class="gmail_quote">On Mon, Mar 8, 2010 at 6:03 PM, Rajeev Thakur <span dir="ltr"><<a href="mailto:thakur@mcs.anl.gov">thakur@mcs.anl.gov</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<div dir="ltr" align="left"><span><font color="#0000ff" face="Arial" size="2">Which version of MPICH are you using and what
device?</font></span></div>
<div dir="ltr" align="left"><span><font color="#0000ff" face="Arial" size="2"></font></span> </div>
<div dir="ltr" align="left"><span><font color="#0000ff" face="Arial" size="2">Rajeev</font></span></div><br>
<blockquote style="border-left: 2px solid rgb(0, 0, 255); padding-left: 5px; margin-left: 5px; margin-right: 0px;">
<div dir="ltr" align="left" lang="en-us">
<hr>
<font face="Tahoma" size="2"><b>From:</b> <a href="mailto:mpich-discuss-bounces@mcs.anl.gov" target="_blank">mpich-discuss-bounces@mcs.anl.gov</a>
[mailto:<a href="mailto:mpich-discuss-bounces@mcs.anl.gov" target="_blank">mpich-discuss-bounces@mcs.anl.gov</a>] <b>On Behalf Of </b>Bin
Bao<br><b>Sent:</b> Monday, March 08, 2010 2:41 PM<br><b>To:</b>
<a href="mailto:mpich-discuss@mcs.anl.gov" target="_blank">mpich-discuss@mcs.anl.gov</a><br><b>Subject:</b> [mpich-discuss] A runtime
environment variable to controleager/rendezvous protocol?<br></font><br></div><div class="im">
<div></div>Hi,<br><br>Is there a runtime environment variable in MPICH2 that
can be used to control when to switch from eager protocol to rendezvous
protocol? It seems that "MPICH LONGVLONGTHRESH" in MPICH can do
this.<br><br>Bin<br></div></blockquote></div>
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<br></blockquote></div><br>