MFC good first issues (Fortran)

bug good first issue

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Latent out-of-bounds read in mibm central-difference IB drag (s_compute_viscous_stress_tensor) for boundary-adjacent bodies about 1 month ago

bug help wanted good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

GPU_PARALLEL_LOOP advertises no_create but OMP_NOCREATE_STR aborts fypp, breaking OpenACC-only builds about 2 months ago

help wanted good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

misc tooling dedup: twin result dict, identical doc getters, hardcoded sched thresholds, redundant ORG_COLORS 2 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

An interrupted build leaves MFC permanently skipping a dependency or a configure step 3 months ago

help wanted good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

A multi-word environment value in toolchain/modules is silently truncated to its first word 3 months ago

help wanted good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Match ICPP and IB Module Structures 3 months ago

help wanted good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Validator error message references non-existent parameter `bc_{dir}%Tw_out` (should be `Twall_out`) 3 months ago

bug good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Euler–Lagrange two-way coupling with moving bubbles gives rank-count-dependent results 3 months ago

help wanted

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Extend lint_source.py to catch stop/error stop, integer(wp), and signed d-exponent literals 3 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Add a grid-stretching helper for parameter selection 3 months ago

good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Remove test --only case sensitivity 4 months ago

good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

All-File Validation for Toolchain 4 months ago

enhancement good first issue continuous-integration

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Disambiguate `fd_order` case file parameter 4 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

snake_case sweep: rename camelCase/Hungarian leftovers in test toolchain 4 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Add a flag() helper for the ~134 self.get(x,F)==T boolean reads in case_validator.py 4 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Integrate Rotations into ICPP Patches 4 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Fix internal spelling typos (HardcodedDellacation, BC_SlIP_WALL, tangental, fite_path_dest, lb) 4 months ago

good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Fix several misleading/incorrect code comments across src/ 4 months ago

documentation good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Unify 2D and 3D Patch Geometries 4 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Deprecate IB Cylinder Length Values 5 months ago

good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

post_process: extract shared Lagrangian-bubble restart-header read (and name the 5x disp offset) 5 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

post_process: extract s_write_field helper to collapse the 38 repeated fill->name->write->clear stanzas in s_save_data 5 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

post_process: lift the bubble-moment block out of the ~580-line s_save_data 5 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

viz/interactive.py: dedup repeated status Div, log-transform closure, and 3D mesh cache key (+ first unit tests) 5 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Refactor `m_riemann_solvers`: reduce duplication, improve structure, add schemes 5 months ago

enhancement help wanted

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

build/run/state cleanups: stale job script on invalid options, duplicated build parse, twin make_options/make_slug, quit shadows builtin 5 months ago

bug good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

test toolchain dedup: duplicate is_uuid, repeated trace-truncation, twin error ladders, 3 axis branches 5 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

case_validator: check_chemistry() runs twice + stale fallback constants disagree with m_constants.fpp 5 months ago

bug good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Naming cleanup: misnamed MPI gather routine, stutter type names, builtin-shadowing locals 5 months ago

documentation good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Rename misleading WP_MOK in post_process MPI-IO (holds storage-precision byte count) 5 months ago

documentation good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Add keep-in-sync comments to near-identical twin routines (viscous/conversion/rhs) 5 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

pre_process: 22x repeated patch_id_fp declaration + duplicated QBMM moment block 5 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Extract duplicated NACA airfoil grid-generation block (TODO already present) 5 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

s_derive_center_of_mass duplicates the MPI-allreduce block 3x by dimension 5 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Remove internal-numbering / migration comments referencing invisible context 5 months ago

documentation good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Resolve or delete stale TODO / edit-marker comments in simulation/ 5 months ago

documentation good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Hardcoded Fortran file-unit numbers where newunit= is already used elsewhere 5 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Assorted magic literals: downsample factor 3, repeated 1e-300 log floor, p0/j<177 in s_perturb_primitive 5 months ago

documentation enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

AMD-workaround static array dims (3/10/20) are unexplained magic numbers 5 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

IBM/IC patch geometry IDs (2-21) are bare integers across 4+ files with no named-constant set 5 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Replace magic CBC boundary-condition codes (-5 to -13) with existing named constants in m_cbc.fpp 5 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Drop dead control flow: empty conditionals, redundant zero-init, identical arg-parse branches 5 months ago

good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Remove dead *_MOK MPI-offset assignments in file_per_process I/O branches (and fix n_MOK/p_MOK typo) 5 months ago

bug good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Collapse byte-identical if/else and #ifdef/#else branches 5 months ago

good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Remove unused module/local variables, dead assignments, and duplicate use/include statements 5 months ago

good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Remove commented-out GPU/CUDA directive and debug lines across src/ and toolchain/ 5 months ago

good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Remove separator banners in toolchain Python (the rule the linter enforces on src/) 5 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Fix forbidden/precision-unsafe numeric literals (5.0d-11, integer(wp), missing _wp) 5 months ago

bug good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Replace forbidden stop/error stop with s_mpi_abort in solver source 5 months ago

bug good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Inactive-patch validation never runs: s_check_patches loops bound at num_patches instead of num_patches_max 5 months ago

bug good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

CBC pi_coef_y/pi_coef_z leak in multi-D MUSCL runs (dealloc guards drop `.or. muscl_order > 1`) 5 months ago

bug good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Moving IBM Case Optimization 5 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Force Compute Reshaping 5 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Riemann solver enthalpy calculation refactor 5 months ago

enhancement help wanted good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Replace pylint + autopep8 with ruff for Python linting and formatting 8 months ago

enhancement good first issue continuous-integration

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Only run benchmark/test suite once all the linting/formatting/etc passes 10 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Convergence result in CI 10 months ago

documentation enhancement help wanted good first issue continuous-integration

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Queued test list 11 months ago

good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

New example cases: Lid-driven cavity (compressible), double Mach, and more 11 months ago

enhancement good first issue

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Use `benchmark-action` to track code performance over time about 1 year ago

documentation enhancement help wanted good first issue continuous-integration

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

Long CI is mostly due to examples with hard-coded patches: An easy fix over 1 year ago

AI Summary: The task involves optimizing the continuous integration (CI) process for the MFC project by refactoring example cases. Currently, the CI process is slow because it rebuilds the simulation for each example with a hard-coded patch. The solution is to move these hard-coded patches into the source code's include directory, eliminating the need for repeated compilation during testing. This will significantly reduce the CI runtime.

Complexity: 3/5

enhancement help wanted continuous-integration

MFlowCode/MFC

381

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

Fortran

#amd-gpu#cfd#computational-fluid-dynamics#cuda#exascale#fluid-dynamics#fortran#gpu#gpu-computing#hpc#mpi#multiphase#nvidia-gpu#openacc#openmp#parallel-computing#physics-simulation#rocm#scientific-computing#simulation

MFlowCode/MFC

Open Issues Need Help