From ed19b8d9e3ba009db1eb797e10846ccef66b86c3 Mon Sep 17 00:00:00 2001
From: Zane Fink <finkzane@gmail.com>
Date: Thu, 8 Oct 2026 13:30:23 -0700
Subject: [PATCH] ci: create conda envs by prefix so jobs don't share a user's
 envs_dirs

---
 scripts/gitlab/ci-build-test.sh     | 14 ++++++++------
 scripts/gitlab/ci-run-benchmarks.sh |  4 ++--
 2 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/scripts/gitlab/ci-build-test.sh b/scripts/gitlab/ci-build-test.sh
index 931ba610..6b8e9e00 100755
--- a/scripts/gitlab/ci-build-test.sh
+++ b/scripts/gitlab/ci-build-test.sh
@@ -34,6 +34,9 @@ install_miniforge() {
   bash "${miniforge_dir}/miniforge.sh" -b -u -p "${miniforge_dir}"
   rm "${miniforge_dir}/miniforge.sh"
   source "${miniforge_dir}/etc/profile.d/conda.sh"
+  # Create the env by prefix: a named env follows the user's condarc envs_dirs,
+  # which concurrent jobs then share and clobber.
+  CONDA_ENV_DIR="${miniforge_dir}/envs/proteus"
 }
 
 install_coverage_tools() {
@@ -48,15 +51,14 @@ if [ "${CI_MACHINE}" == "matrix" ]; then
   echo "CUDA_VISIBLE_DEVICES=${CUDA_VISIBLE_DEVICES:-} SLURM_STEP_GPUS=${SLURM_STEP_GPUS:-}"
 
   # Install Clang/LLVM through conda.
-  MINIFORGE_DIR=miniforge3
-  install_miniforge "${MINIFORGE_DIR}"
+  install_miniforge "${WORKDIR}/miniforge3"
   # Use an older version of gcc to avoid issues with detecting Clang as the CUDA
   # compiler.
-  conda create -y -q -n proteus --override-channels -c conda-forge \
+  conda create -y -q -p "${CONDA_ENV_DIR}" --override-channels -c conda-forge \
       python=${PYTHON_VERSION} clang=${PROTEUS_CI_LLVM_VERSION} clangxx=${PROTEUS_CI_LLVM_VERSION} \
       pip pybind11 clangdev=${PROTEUS_CI_LLVM_VERSION} llvmdev=${PROTEUS_CI_LLVM_VERSION} \
       lit=${PROTEUS_CI_LLVM_VERSION} mlir=${PROTEUS_CI_LLVM_VERSION} gcc=12 gxx=12
-  conda activate proteus
+  conda activate "${CONDA_ENV_DIR}"
 
   LLVM_INSTALL_DIR=$(llvm-config --prefix)
   CMAKE_OPTIONS_MACHINE=" -DCMAKE_PREFIX_PATH=$CONDA_PREFIX;$CONDA_PREFIX/lib/cmake"
@@ -78,9 +80,9 @@ elif [ "${CI_MACHINE}" == "tioga" ] || [ "${CI_MACHINE}" == "tuolumne" ]; then
 
   LLVM_INSTALL_DIR=${ROCM_PATH}/llvm
   install_miniforge "${WORKDIR}/miniforge3"
-  conda create -y -q -n proteus --override-channels -c conda-forge \
+  conda create -y -q -p "${CONDA_ENV_DIR}" --override-channels -c conda-forge \
     python=${PYTHON_VERSION} pip pybind11
-  conda activate proteus
+  conda activate "${CONDA_ENV_DIR}"
 
   CMAKE_OPTIONS_MACHINE=" -DCMAKE_PREFIX_PATH=$CONDA_PREFIX;$CONDA_PREFIX/lib/cmake"
   CMAKE_OPTIONS_MACHINE+=" -DPROTEUS_ENABLE_HIP=on"
diff --git a/scripts/gitlab/ci-run-benchmarks.sh b/scripts/gitlab/ci-run-benchmarks.sh
index e39f8ac5..83e7f2c3 100755
--- a/scripts/gitlab/ci-run-benchmarks.sh
+++ b/scripts/gitlab/ci-run-benchmarks.sh
@@ -49,9 +49,9 @@ wget -q --tries=5 --retry-connrefused --wait=5 https://github.com/conda-forge/mi
 bash ${MINIFORGE_DIR}/miniforge.sh -b -u -p ${MINIFORGE_DIR}
 rm ${MINIFORGE_DIR}/miniforge.sh
 source ${MINIFORGE_DIR}/bin/activate
-conda create -y -q -n proteus --override-channels -c conda-forge \
+conda create -y -q -p ${MINIFORGE_DIR}/envs/proteus --override-channels -c conda-forge \
     python=${PYTHON_VERSION} pandas==2.2.3 matplotlib==3.10.0
-conda activate proteus
+conda activate ${MINIFORGE_DIR}/envs/proteus
 
 if [ "${CI_MACHINE}" == "matrix" ]; then
   if [ "${BENCHMARKS_TOML}" == "rajaperf.toml" ]; then