<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">There shouldn't be any (explicit) file locking going on w.r.t. this file, at least as far as I know.<div><br></div><div>-Dave</div><div><br><div><div>On Feb 4, 2013, at 11:28 AM CST, Dustin Sorge wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr">What I was hoping was that I would be able to get some interesting NFS locking testing by having multiple NFS clients all trying to use this file while running an MPI job. </div><div class="gmail_extra"><br>
<br><div class="gmail_quote">On Mon, Feb 4, 2013 at 12:08 PM, Dave Goodell <span dir="ltr"><<a href="mailto:goodell@mcs.anl.gov" target="_blank">goodell@mcs.anl.gov</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex; position: static; z-index: auto; ">
<div class="im">On Feb 4, 2013, at 11:05 AM CST, Dustin Sorge wrote:<br>
<br>
> I can get MPICH working without it, however I am doing some NFS testing and having that file mounted over NFS would be a very interesting use case for me. I would like to avoid mounting /tmp over NFS so i wanted to see if there was a way to specifying another path for the file.<br>
<br>
</div>You probably don't want to be accessing this file directly, and especially not over NFS. The only reason a file exists is as a way for all processes to map the same memory. IIRC the file should actually be unlinked (deleted) as soon as all processes on the node have mmap-ed it.<br>
<br>
Can you explain more about what you are actually trying to accomplish?<br>
<span class="HOEnZb"><font color="#888888"><br>
-Dave<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
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