move gpu pipeline to clima

.buildkite/gpu_pipeline/pipeline.yml

@@ -1,26 +1,18 @@
 agents:
-  queue: central
+  queue: clima
   slurm_mem: 8G
-  modules: julia/1.9.3 cuda/11.8 ucx/1.14.1_cuda-11.8 openmpi/4.1.5_cuda-11.8 hdf5/1.12.2-ompi415 nsight-systems/2023.2.1
+  modules: julia/1.9.3 cuda/julia-pref openmpi/4.1.5-cuda
 
 env:
-  JULIA_LOAD_PATH: "${JULIA_LOAD_PATH}:${BUILDKITE_BUILD_CHECKOUT_PATH}/.buildkite"
   OPENBLAS_NUM_THREADS: 1
   JULIA_NVTX_CALLBACKS: gc
-  OMPI_MCA_opal_warn_on_missing_libcuda: 0
   JULIA_MAX_NUM_PRECOMPILE_FILES: 100
-  JULIA_DEPOT_PATH: "${BUILDKITE_BUILD_PATH}/${BUILDKITE_PIPELINE_SLUG}/depot/cpu"
   GPU_CONFIG_PATH: "config/gpu_configs/"
 
 steps:
   - label: "init :GPU:"
     key: "init_gpu_env"
     command:
-      - "echo $$JULIA_DEPOT_PATH"
-
-      - echo "--- Configure MPI"
-      - julia -e 'using Pkg; Pkg.add("MPIPreferences"); using MPIPreferences; use_system_binary()'
-
       - echo "--- Instantiate project"
       - "julia --project -e 'using Pkg; Pkg.instantiate(;verbose=true)'"
       - "julia --project -e 'using Pkg; Pkg.precompile()'"