CI: add CUDA-aware MPI opt-in to GPU Nsight profiling#47

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cenamiller wants to merge 3 commits intomasterfrom

feature-ci-nsys-cuda-aware-mpi

Commits on Apr 28, 2026

ci: add CUDA-aware MPI opt-in to GPU Nsight profiling
cenamiller
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ci: per-rank GPU pinning + richer GPU diagnostics for Nsight workflow
cenamiller
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ci: also patch config_gpu_aware_mpi in namelist when cuda_aware_mpi=true
cenamiller
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