<div dir="ltr"><div class="gmail_default" style="font-family:arial black,sans-serif"><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Apr 26, 2017 at 7:49 AM, Wilbert James Futalan <span dir="ltr"><<a href="mailto:wilbert.james.futalan@gmail.com" target="_blank">wilbert.james.futalan@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Hi all!</div><div><br></div>I understand that installing Quantum ESPRESSO on Windows has its cons, but I would like to know if it's possible to install v. 6.0 in Windows.<br><br>For the time being, I decided to install 5.3.0 because it's the latest version with the Windows .exe installer. I also tried to install MPICH so I can use multiple cores; unfortunately, its latest versions are in .tar.gz format. I want to avoid installing v. 1.4 of MPICH (<a href="http://www.mpich.org/static/downloads/1.4.1p1/" target="_blank">http://www.mpich.org/static/<wbr>downloads/1.4.1p1/</a>) . I have come up with two possible solutions, but I do not know how to implement any of them:<div><br></div><div>a) convert .tar.gz to .msi format.</div></div></blockquote><div><div class="gmail_default" style="font-family:"arial black",sans-serif"><span style="font-family:arial,sans-serif"> </span></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>b) use Microsoft MPI v8 (<a href="https://www.microsoft.com/en-us/download/details.aspx?id=54607" target="_blank">https://www.microsoft.com/en-<wbr>us/download/details.aspx?id=<wbr>54607</a>). I suppose that the syntax would not be <br><div><div>mpiexec -localonly # pw... but something else.<br></div><div><br></div><div>Can anyone advise me what to do?</div></div></div></div></blockquote><div><br></div><div><div class="gmail_default" style="font-family:"arial black",sans-serif">neither your option a) nor your option b) are practical.</div><div class="gmail_default" style="font-family:"arial black",sans-serif"><br></div><div class="gmail_default" style="font-family:"arial black",sans-serif">the .tar.gz packages you are talking about contain source code, not binaries. so you'd have to compile MPI for yourself.</div><div class="gmail_default" style="font-family:"arial black",sans-serif">doing this is a highly non-trivial and complicated process and that is the main reason, why there are so few binary packages for MPI on windows. both, MPICH and OpenMPI have abandoned them, as it takes too much effort for too few active users.</div><div class="gmail_default" style="font-family:"arial black",sans-serif"><br></div><div class="gmail_default" style="font-family:"arial black",sans-serif">the Microsoft MPI package has the issue, that you need to use microsoft's compilers, but those lack a fortran compiler and thus are useless to compile QE.</div><div class="gmail_default" style="font-family:"arial black",sans-serif"><br></div><div class="gmail_default" style="font-family:"arial black",sans-serif">the "old" v1.4 binary version of MPICH is still providing all of the MPI that is required by QE, so why not use it?</div><div class="gmail_default" style="font-family:"arial black",sans-serif">that package is also compatible with GNU compilers for windows (either Cygwin or MingGW) and for a native compilation on windows, probably having a Cygwin setup should be your best option.</div><div class="gmail_default" style="font-family:"arial black",sans-serif"><br></div><div class="gmail_default" style="font-family:"arial black",sans-serif">another option worth considering is to install the native linux client for windows (if you are running windows 10) and then compile/install an ubuntu linux executable.</div><br></div><div><div class="gmail_default" style="font-family:"arial black",sans-serif">another option would be to install/use a linux virtual machine. that will most certainly make the compilation/installation part simpler, as you would not have to deal with linux/windows portability issues. as somebody who has build QE binaries for windows for several years, resolving the (often minor) portability issues, that almost always happen when new versions of QE are released, have been the major time drain and are the reason why there are no new packages. it just has become too much work for no more benefit (initially the motivation was to have binaries for tutorials where linux was not an option, but now virtual machines have become a viable alternative with *much* less overhead, so native windows executables are no longer a requirement).</div><div class="gmail_default" style="font-family:"arial black",sans-serif"><br></div><div class="gmail_default" style="font-family:"arial black",sans-serif">axel.</div><div class="gmail_default" style="font-family:"arial black",sans-serif"></div><br></div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div><br></div><div>Thank you.</div><span class="HOEnZb"><font color="#888888">-- <br><div class="m_5867903430035637480gmail_signature"><div dir="ltr"><font size="1">Jim F.<br><br></font></div></div>
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