Skip to content

Introduce multi-node support via SSH to rrun #617

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
pentschev wants to merge 2 commits into
base: main
Choose a base branch
from
Draft

Introduce multi-node support via SSH to rrun #617

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
3a325e7
Add multi-node support via SSH
pentschev Nov 4, 2025
0f5d97e
Update docs to ucxx communicator
pentschev Nov 4, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
20 changes: 20 additions & 0 deletions README.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -98,6 +98,26 @@ cmake --build . --target rrun
./tools/rrun -v -n 4 -g 0,1,2,3 ./benchmarks/bench_comm -C ucxx
```

#### Multi-Node Usage (SSH)

```bash
# Create hostfile
cat > hosts.txt << EOF
node1 slots=8 gpus=0,1,2,3,4,5,6,7
node2 slots=8 gpus=0,1,2,3,4,5,6,7
EOF

# Launch across multiple nodes
./tools/rrun --hostfile hosts.txt \
-d /shared/nfs/coord \
./benchmarks/bench_comm -C ucxx

# With processes per node override
./tools/rrun --hostfile hosts.txt --ppn 4 \
-d /shared/nfs/coord \
./benchmarks/bench_comm -C ucxx
```

## Algorithms
### Table Shuffle Service
Example of a MPI program that uses the shuffler:
Expand Down
Loading