Under my programming environment, FORTRAN, it is possible to parallel read (using native read function instead of MPI&#39;s parallel read function).  Although you&#39;ll run into problem when you try to parallel write to the same file.<br>

<br><div class="gmail_quote">On Wed, Mar 9, 2011 at 8:45 PM, Jack Bryan <span dir="ltr">&lt;<a href="mailto:dtustudy68@hotmail.com">dtustudy68@hotmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">





<div>
Hi, <div><br></div><div>I have a file, which is located in a system folder, which can be accessed by all parallel processes. </div><div><br></div><div>Does Open MPI allow multi processes to access the same file at the same time ? </div>

<div><br></div><div>For example, all processes open the file and load data from it at the same time. </div><div><br></div><div>Any help is really appreciated. </div><div><br></div><div>thanks</div><div><br></div><div>Jack</div>

<div><br></div><div>Mar 9 2011</div><div><br></div><div> </div> 		 	   		  </div>
<br>_______________________________________________<br>
users mailing list<br>
<a href="mailto:users@open-mpi.org">users@open-mpi.org</a><br>
<a href="http://www.open-mpi.org/mailman/listinfo.cgi/users" target="_blank">http://www.open-mpi.org/mailman/listinfo.cgi/users</a><br></blockquote></div><br><br clear="all"><br>-- <br>David Zhang<br>University of California, San Diego<br>