[FLASH-USERS] Compile FLASH4.8 LaserSlab on MacOS with M1 chip

[Leland Ellison]

Hi Weiping,

I don't know about that exact problem, but I'm attaching instructions I
used to build FLASH4.7 from scratch on an M1 mac. Hopefully it helps.

Best,
Leland

________________
Leland Ellison PhD
Pacific Fusion
Lead - Modeling and Simulations

# Installing FLASH on macOS from scratch
# Leland Ellison, Pacific Fusion
# 06.13.23

1. Download FLASH using the link in your approved access email and
credentials in that same email

2. Unpack the download
tar -xzvf FLASH4.7.tar.gz

3. Set up your site directory
cd FLASH4.7/sites
echo $HOSTNAME
mkdir <hostname>
cd <hostname>
cp ../Prototypes/Darwin/* .

4. Install Homewbrew
/bin/bash -c "$(curl -fsSL
https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

   and add it to your path using the two commands it recommends upon
successful install
(echo; echo 'eval "$(/opt/homebrew/bin/brew shellenv)"') >>
/Users/<username>/.bash_profile
eval "$(/opt/homebrew/bin/brew shellenv)"

4. Install open-mpi
brew install open-mpi

5. Install hdf5-mpi
brew install hdf5-mpi

6. Install hypre [for diffusion problems]
In some relevant directory (for me: ~/Software)
git clone https://github.com/hypre-space/hypre.git
cd hypre/src
./configure
make install

7. Add/modify these lines in the Makefile.h
HDF5_PATH = /opt/homebrew/
MPI_PATH = /opt/homebrew/bin/
HYPRE_PATH= /Users/<username>/Software/hypre/src/hypre
And append -fallow-argument-mismatch to FFLAGS_OPT, FFLAGS_DEBUG and
FFLAGS_TEST
And append -Wno-error=implicit-function-declaration to CFLAGS_OPT,
CFLAGS_DEBUG
CFLAGS_HYPRE = -I${HYPRE_PATH}/include

8. Update the setup scripts to call python 3
cd FLASH4.7/bin
Replace all instances of "/usr/bin/env python" with "/usr/bin/env python3"
in *.py

#########################
#  Simple problem: Sedov #
#########################

9. Call setup for sedov problem (no hypre used)
cd FLASH4.7
./setup -audo Sedov

10. Build
cd object
make
--> Should see SUCCESS after a bunch of compiling

11. Check that you can run
./flash4
--> Should see "exiting: reached max SimTime" after a bunch of output,
including rows with timestep, time, dt, etc.

12. Check that you can run in parallel
mpirun -np 2 ./flash4

##########################
#  Hypre problem: ZPinch #
##########################

13. Call setup for E. Hansen's 1D Z Pinch (hypre, hdf5, ...)
cd FLASH4.7
./setup -auto magnetoHD/ZPinch -1d +cylindrical +ug species=fill,line,vacu
+mtmmmt +usm3t +mgd mgd_meshgroups=6 +hdf5typeio

14. Build
cd object
make
--> Should see SUCCESS after a bunch of compiling

15. Run in parallel
Replace iprocs in flash.par with the number you're planning to run with
(e.g., 8)
mpirun -np 8 ./flash4

On Fri, Apr 4, 2025 at 3:14 PM Yao Weipeng <yao.weipeng at polytechnique.edu>
wrote:

> Hey there,
>
> I am trying to use FLASH4.8 and the LaserSlab setup on my Mac laptop, with
> M1 chip.
> And I got the following issue at the linking stage of the compilation:
>
> Undefined symbols for architecture arm64:
>  "_dgelsy_", referenced from:
>      ___gr_uhyprelinearleastsquares_MOD_lsq.constprop.0 in
> gr_uhypreLinearLeastSquares.o
>      ___gr_uhyprelinearleastsquares_MOD_lsq.constprop.0 in
> gr_uhypreLinearLeastSquares.o
>      ___gr_uhyprelinearleastsquares_MOD_lsq.constprop.0 in
> gr_uhypreLinearLeastSquares.o
>  "_dgeqrf_", referenced from:
>      ___gr_uhyprelinearleastsquares_MOD_linsqln in
> gr_uhypreLinearLeastSquares.o
>      ___gr_uhyprelinearleastsquares_MOD_linsqln in
> gr_uhypreLinearLeastSquares.o
>      ___gr_uhyprelinearleastsquares_MOD_linsqln in
> gr_uhypreLinearLeastSquares.o
>  "_dgesv_", referenced from:
>      ___gr_uhyprelinearleastsquares_MOD_linsqln in
> gr_uhypreLinearLeastSquares.o
>      ___gr_uhyprelinearleastsquares_MOD_linsqln in
> gr_uhypreLinearLeastSquares.o
>      ___gr_uhyprelinearleastsquares_MOD_linsqln in
> gr_uhypreLinearLeastSquares.o
>  "_dorgqr_", referenced from:
>      ___gr_uhyprelinearleastsquares_MOD_linsqln in
> gr_uhypreLinearLeastSquares.o
> ld: symbol(s) not found for architecture arm64
> collect2: error: ld returned 1 exit status
> make: *** [flash4] Error 1
>
> Is there someone who might have a clue in dealing with this issue?
>
> Thanks,
> Weipeng
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