Change CUDA_VISIBLE_DEVICES from '1' to '0'

Author: simone-silvestri

.buildkite/pipeline-benchmarks.yml

@@ -7,7 +7,7 @@ env:
   JULIA_NUM_PRECOMPILE_TASKS: 24
   JULIA_NUM_THREADS: 8
   NSYS: "/storage6/nsight/bin/nsys"
-  CUDA_VISIBLE_DEVICES: "1" # Tartarus device for GPU Benchmarking
+  CUDA_VISIBLE_DEVICES: "0" # Tartarus device for GPU Benchmarking
   TMPDIR: "$TARTARUS_HOME/tmp"
 
 steps: