Building on ARCHER2

[keith.evans]

Hi There, I’ve been trying to get gs2 working on ARCHER2, I’ve been able to clone gs2 and its submodules and I located that that already exists a make file for archer2 however, Im getting compiler errors during building

make -I Makefiles GK_SYSTEM=archer2

Compiling : /mnt/lustre/a2fs-work2/work/y02/y02/kevans86/gs2/generated_src/simpledataiof.f90
ftn-78 ftn: ERROR in command line
The -f option has an invalid argument, "allow-argument-mismatch".
ftn-78 ftn: ERROR in command line
The -f option has an invalid argument, "free-line-length-none".
ftn-78 ftn: ERROR in command line
The -f option has an invalid argument, "no-backslash".
ftn-78 ftn: ERROR in command line
The -f option has an invalid argument, "default-real-8".
ftn-78 ftn: ERROR in command line
The -f option has an invalid argument, "default-double-8".
make: *** [Makefile:716: /mnt/lustre/a2fs-work2/work/y02/y02/kevans86/gs2/objs/simpledataiof.o] Error 1

I’m guessing im not configuring it prior to building, because it strange that the ftn compiler is trying to use gfortran arguments

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Thanks

Keith

[David Dickinson]

Hi and thanks for the report. The Archer2 makefile is set up assuming that you are using the gfortran compiler (i.e. that you have done module load PrgEnv-cray). If you'd rather use the cray compiler then I believe you could pass COMPILER=cray as an additional make argument.

[David Dickinson]

@K Evans please do let me know if this resolves the issue that you have encountered or if there’s anything else that I can help with.

[keith.evans]

Hi David, unfortunately I didnt fix the issue. I’ve loaded PrgEnv-cray and I’ve tried various make options including “make -I Makefiles GK_SYSTEM=archer2 COMPILER=gnu-gfortran” in an attempt to ensure it built with gfortran but I still get the same issue, its still trying to build with ftn

[David Dickinson]

@K Evans if you’ve loaded PrgEnv-cray then I think you would want to run make -I Makefiles GK_SYSTEM=archer2 COMPILER=cray. If you do module load PrgEnv-gnu instead then you might be able to use make -I Makefiles GK_SYSTEM=archer2 to build.

You might need to do make distclean between attempts to ensure that any intermediate files are cleaned up (removed). This can be important when switching compilers or if you change some of the options passed to make.

[David Dickinson]

I should also note that on Archer2 the fortran compiler is always accessed via ftn for any of the supported compiler families.

[keith.evans]

Hi David, yes that worked thank you, now theres an issue with netcdf module not loading, but I think thats because the module has a different name

[David Dickinson]

@K Evans yes it looks like the Archer2 module system may have changed slightly. My setup is effectively

module load PrgEnv-gnu
module load cray-hdf5-parallel  cray-fftw cray-netcdf-hdf5parallel
module load cray-python
module load netcdf4

and then

make submodules ; make -j GK_SYSTEM=archer2 MAKEFLAGS=-IMakefiles

The make submodules is not required in most cases, but I run it anyway out of habit.

[David Dickinson]

One can swap cray-hdf5-parallel cray-netcdf-hdf5parallel for cray-hdf5 cray-netcdf if not using parallel I/O

[keith.evans]

hi David, thats got me a lot further in the compilation however i’m now getting

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/mnt/lustre/a2fs-work2/work/y02/y02/kevans86/gs2/externals/utils/integration.f90:48:21:

48 | total = cmplx(klein_sum(real(array)),klein_sum(aimag(array)))
| 1
Error: Generic function 'klein_sum' at (1) is not consistent with a specific intrinsic interface
/mnt/lustre/a2fs-work2/work/y02/y02/kevans86/gs2/externals/utils/integration.f90:34:15:

34 | total = klein_sum(array)
| 1
Error: Generic function 'klein_sum' at (1) is not consistent with a specific intrinsic interface
make: *** [Makefile:720: /mnt/lustre/a2fs-work2/work/y02/y02/kevans86/gs2/objs/integration.o] Error 1

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Thanks

[David Dickinson]

Hi @K Evans that’s quite surprising as I don’t encounter the same issue! Could you report the output of the following, when run from the gs2 directory (/mnt/lustre/a2fs-work2/work/y02/y02/kevans86/gs2/)?

module list
git status
git describe --long
git submodule status

My only guess is that perhaps there are some leftover object files from earlier attempts at building with a different setup.

Could you try to see if

make distclean GK_SYSTEM=archer2 -IMakefiles

allows a further attempt to build gs2 (make -j GK_SYSTEM=archer2 -IMakefiles) to succeed?

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[keith.evans]

you were right there was leftover objects, make distclean worked and it’ll now build, thank you very much for your help

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[David Dickinson]

Thanks for confirming @K Evans I’m glad it’s now working. Do let us know if there are any other issues that we can help with.

[David Dickinson]

Now building on Archer2