Install Error for additional packages

FreeFEM installation
1

Whenever I try to do step 6 or 7 of the Windows install guide I get the following:

Sorry missing unzip,m4,bison,flex,patch command

How do I deal with this? Also what exactly should I be putting in mingw64 for the full install?

2

Type this:

$ pacman -S autoconf automake-wrapper bash bash-completion \
    bison bsdcpio bsdtar bzip2 coreutils curl dash file filesystem \
    findutils flex gawk gcc gcc-fortran gcc-libs grep gzip inetutils info less lndir \
    make man-db git mingw-w64-x86_64-freeglut mingw-w64-x86_64-toolchain mingw-w64-x86_64-gsl mingw-w64-x86_64-hdf5 \
    mingw-w64-x86_64-openblas mintty msys2-keyring msys2-launcher-git \
    msys2-runtime ncurses pacman pacman-mirrors pactoys-git patch pax-git python \
    perl pkg-config pkgfile rebase sed tar tftp-hpa time tzcode unzip util-linux which \
    mingw-w64-x86_64-libmicroutils mingw-w64-x86_64-cmake
$ pacman -R mingw-w64-x86_64-gcc-ada mingw-w64-x86_64-gcc-objc mingw-w64-x86_64-gdb mingw-w64-x86_64-python

It’s written there.

If you are on Windows, you can simply get the .exe on GitHub as well.

3

So i ran the first chunk and I think it went through, but when I run the second it gives

error: failed to prepare transaction (could not satisfy dependencies)

I updated everything with pacman -Syuu like the troubleshooting website suggested.

I also used that .exe and FreeFEM still wont run the code you posted earlier. It gives this error

    Error line number 820, in file  macro: buildOverlapEdgePeriodicRecursive in C:\Program Files 
   (x86)\FreeFem++\\idp\macro_ddm.idp, before  token mpiWtime
4

You need to run FreeFem++-mpi.exe, not FreeFem++.exe, see this answer in another thread on how to use it from the command prompt.

5

Whenever I try to run FreeFem+±mpi.exe it immedietely closes. Is that something on my end?

Also what is the easiest way to edit code on my machine?

6

It closes the terminal? You may have to install MS-MPI. You can edit code using Notepad.

7

ok.

Looking at the install guide I have done steps 1-5 without error popping up. I have installed MPI, msys2, and Git. It yells at me whenever I try to do step 6, and I have gotten different answers about what I should actually put in their. Once everything is intalled I am still not sure how to get the mpi version of FreeFEM to run the code. Currently I have been editing code in the online widget and then downloading the .edp file at it runs automatically.

Sorry this is a lot I am just getting more confused about what I actually need to do and how.

8

Just open the Windows command prompt, go in the FreeFEM folder installation using cd, and type a command.

9

what command? I am here right now

Capture
Capture909×489 44.9 KB

10

Again, see the screenshots in this previously mentioned post for the correct path and commands.

11

I am not sure what commands you are referring to. I have a scipt.edp file dowloaded, how do I get it to run through FreeFem+±mpi.exe from the command prompt?

12

By typing "FreeFem++-mpi.exe" script.edp in the C:\Program Files (x86)\FreeFem++ folder.

13

I ran the code you posted in a different thread, but the plot doesn’t show pop up. Other than that I believe it is working.

14

Good! For the plot, I think this is a known problem. Maybe you could try the following:

  1. run the code with the option -fglut myPlots
  2. after completion, run "ffglut.exe" myPlots

But I’m not sure it will work as well. To be honest, you should just switch to ParaView. I can give you the appropriate command for your script if you want.

15

I dont need plots anymore, so that is more of a curiosity than anything. I am going to put the calculations I need to do in the code you provided, make sure it all works, and hopefully get it to run faster. If it doesnt work I will let you know, If it does I would like to bug you about what exactly you did so I can understand it.

Thank you so much for the help again.

Also is the website not loading more than two tabs a me problem or a server side problem?

16

Sure thing, please do let me know if you run into any hiccups or something is not clear to you. With the script I gave you, you can leverage parallel computing + SLEPc, which is more efficient than ARPACK. So the sky should be your limit! :smile:

W.r.t. the website, I’m not real sure what you mean. Maybe it is a little slow this morning?

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