Run two engines in single GPU script.

Author: finbarrtimbers

scripts/train/debug/single_gpu_on_beaker.sh

@@ -47,6 +47,7 @@ uv run python mason.py \
     --with_tracking \
     --num_epochs 1 \
     --num_learners_per_node 1 \
+    --vllm_num_engines 2 \
     --vllm_tensor_parallel_size 1 \
     --beta 0.01 \
     --seed 3 \