Hi, <br><br><div class="gmail_quote">On Wed, May 26, 2010 at 9:11 PM, Riccardo Di Meo <span dir="ltr"><<a href="mailto:dimeo@democritos.it">dimeo@democritos.it</a>></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><div></div><div class="h5">Vikas Varshney wrote:<br>
> Dear all,<br>
> I have a very simple question.<br>
><br>
> I have 2 mpif90 installed on my machine<br>
> one in /usr/local/bin which does not have fortran support. It says<br>
> "Unfortunately, this installation of Open MPU was not compiled with<br>
> Fortran 90 support ..."<br>
> other one is in my local directory which was installed by me. It does<br>
> have fortran compiler (ifort).<br>
><br>
> When, I try to run configure script to genarate makefile, it assumes<br>
> mpif90 to be the first one and results in unsuccessful configure. So,<br>
> my question is that how can I direct the configure script to look for<br>
> other mpif90 and the assciated libraries and header files. Where do I<br>
> need to make necessary changes? Or do I need to ask my admin to update<br>
> mpif90 in /usr/local/bin (where I dont have writable access)?<br>
<br>
</div></div>Two solutions:<br>
<br>
There's a MPIF90 environment variable, which can be set to the mpif90<br>
compiler of your choice. Just point it to your mpif90 binary in your<br>
home before configuring QE. This is the standard/correct solution.<br>
<br>
A "one size fits all" solution, which you can use also for other similar<br>
cases ,would be to make your PATH environment variable give precedence<br>
to the location of the mpif90 compiler you want to use:<br>
<br>
export PATH=<location of your mpif90>:$PATH [bash]<br></blockquote><div><br>you need to set correct LD_LIBRARY_PATH also. Otherwise during
compilation and run time it may pickup the wrong library and give you error. set this as follows <br>export LD_LIBRARY_PATH=<location of your installed openmpi directory>/lib:$LD_LIBRARY_PATH [bash]<br><br>and one personal experience ,by default /usr/bin and /usr/local/bin are set as path when u boot up the system. <br>
and now if you your current mpif90 directory to PATH, it may not pick up the correct one. bcoz u have 2 mpif90, one is in /usr/bin , other is in some directory in you home. the search order for the mpif90 depends on which folder path is loaded to your path variable first . So if your PATH variable contains the entry of /usr/bin first then it'll not pick up the mpif90 from ur home. <br>
<br>I made some changes in my .bash_profile as follows <br><br>line 1 : unset PATH<br>line 2 : export PATH="${PATH}:<location of your mpif90>"<br>line 3: export PATH="${PATH}:/bin:/usr/bin:/usr/local/bin" and finally load "/etc/profile" again <br>
line 4: source /etc/profile <br><br>use it with extreme caution ... <br><br><br></div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<br>
Hope this helps,<br>
RDM<br>
<div class="im"><br>
><br>
> Thanks in advance.<br>
><br>
> Best Regards,<br>
> Vikas<br>
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</blockquote></div><br><br>Hope this helps .... <br><br><br>SJH <br clear="all"><br>-- <br>Junior Research Fellow<br>Advance Computing Laboratory<br>Department of Physics, University of Pune<br>Ganeshkhind, Pune - 411007; INDIA<br>
<br>Tel : (+91 20) 25692678; Extn# 408<br><br>~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~<br>