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Towards TSMP2-GPU on JUPITER - #147

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kvrigor wants to merge 22 commits into
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env-s2026-nvhpc
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Towards TSMP2-GPU on JUPITER#147
kvrigor wants to merge 22 commits into
masterfrom
env-s2026-nvhpc

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@kvrigor kvrigor commented Oct 9, 2026 •
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Working builds:

nvhpc=env/jsc.2026.nvhpc.openmpi
gcc=env/jsc.2026.gnu.openmpi
icon2026=/e/project1/training2647/TSMP2-X2/icon2026.04_coup-oas

# eCLM-ParFlow
./build_tsmp2.sh eclm --env $gcc
./build_tsmp2.sh eclm --env $nvhpc

# eCLM-ParFlow
./build_tsmp2.sh eclm parflowgpu --env $gcc
./build_tsmp2.sh eclm parflowgpu --env $nvhpc

# ICON-eCLM
./build_tsmp2.sh eclm icon --icon_src $icon2026 --env $nvhpc
./build_tsmp2.sh eclm icongpu --icon_src $icon2026 --env $nvhpc

# ICON-eCLM-Parflow
./build_tsmp2.sh parflowgpu eclm icongpu --icon_src $icon2026 --env $nvhpc

TODO:

@kvrigor kvrigor linked an issue Oct 14, 2026 that may be closed by this pull request
OASIS3-MCT fails to build under NVHPC+OpenMPI toolchain (Stages/2026) #142
Open
@kvrigor kvrigor linked an issue Oct 14, 2026 that may be closed by this pull request
Deprecate ./build_tsmp2.sh --<component-model> in favor of ./build_tsmp2.sh <component-model> #114
Open
kvrigor and others added 11 commits October 15, 2026 14:50
@kvrigor
eCLM-ICONGPU should build OASIS first.
2a567ec
@kvrigor
Merge branch 'master' into env-s2026-nvhpc
dee820a
@kvrigor
ParflowGPU NVHPC build hacks
e0773bf
@kvrigor
ICON build hacks
381a271
@kvrigor
Changed eCLM to 'dev-iconeclm-exchfix'
52445f9
@kvrigor
ICONGPU should also build eCLM in coupling mode
f5d182f
@kvrigor
eCLM: updated dev-iconeclm-exchfix
a3a0c08
@kvrigor
use loascplscheme_exchcoef only with ICON
d319165
@jjokella
BuildParFlow: Error message enforcing ParFlow on GPUs for NVHPC
8eccd1d
@kvrigor
Ensure OMPI_* vars are unset
ba9de00
@jjokella
Enable PDAF builds on JUPITER with NVHPC compilers (#150)
4d80f45 
## Pure PDAF

- **`BuildPDAF.cmake`**: Add NVHPC support

- **`BuildPDAFMODEL.cmake`**: Make `-lgfortran` conditional on GNU
compiler. Add GPU libraries for `ParFlowGPU` builds.

- **`BuildParFlow.cmake`**: Umpire is passed to ParFlow for
`ParFlowGPU+PDAF` builds

- **`models/parflow_pdaf`**: Update submodule `v3.14.1-pdaf` →
`v3.15.0-pdaf`, necessary update for GPU support

## OASIS (affects all coupled simulations)

- **`BuildOASIS3MCT.cmake`**: Add `make realclean` as configure step
@kvrigor kvrigor changed the title Stages/2026 support on JURECA-DC and JUPITER Towards TSMP2-GPU on JUPITER Oct 23, 2026
This was linked to issues Oct 23, 2026
ESiWACE3 Hackathon Planning #143
Closed
ParFlowGPU build fails on Stages/2026 NVHPC+OpenMPI #148
Open
@kvrigor kvrigor mentioned this pull request Oct 23, 2026
Closed
@kvrigor
Updated OASIS3-MCT to tsmp-patches-v0.2
b07a5a7 
Shortlog:

  554c09fd (tag: tsmp-patches-v0.2) declared character pointer arrays as contiguous
  7c4fc975 Fixed incorrect data type passed to MPI_GATHER
  14503d81 Replaced "include <mpif.h>" with "use mpi"
  9e43db07 Used 8 make threads to speed up build
  c850840d Set default build to S2026 and GNU+OpenMPI
  5253349d (tag: tsmp-patches-v0.1) rename `da_comm` to `COMM_model_oas

https://icg4geo.icg.kfa-juelich.de/ExternalReposPublic/oasis3-mct/-/commits/tsmp-patches-v0.2?ref_type=tags
@kvrigor
BuildICON: GPU build only works on NVHPC for now.
858c3d1
@kvrigor
BuildParflow: Removed unnecessary comment
4708287
@kvrigor
Added comment on why SUNDIALS module was disabled
72ce734

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@kvrigor @jjokella