From 75c918e2680b5d902162e17f9781b30e8284eace Mon Sep 17 00:00:00 2001
From: Vinicio Reynoso <vr1087@gmail.com>
Date: Sun, 1 Jun 2025 13:58:14 -0500
Subject: [PATCH] Fix CI workflow: remove invalid runner.ncpu expression

---
 .github/workflows/ci.yml | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f6a8c32..40af5a7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,9 +11,6 @@ on:
 jobs:
   build-and-test:
     runs-on: ubuntu-latest
-    env:
-      # Make sure parallel builds use all available cores
-      NUM_CORES: ${{ runner.ncpu }}
 
     steps:
       - name: Check out repository
@@ -29,16 +26,15 @@ jobs:
           sudo apt-get install -y build-essential cmake git python3-dev python3-pip
 
       - name: Configure and build C++ code
-        working-directory: ${{ github.workspace }}
         run: |
           mkdir -p build
           cd build
           cmake .. -DCMAKE_BUILD_TYPE=Release
-          cmake --build . --parallel "${NUM_CORES}"
+          cmake --build . --parallel $(nproc)
 
       - name: Run C++ unit tests with CTest
-        working-directory: ${{ github.workspace }}/build
         run: |
+          cd build
           ctest --output-on-failure
 
       # -----------------------------
@@ -57,13 +53,11 @@ jobs:
           python -m pip install --upgrade pip setuptools scikit-build pytest
 
       - name: Install package (C++ + Python wrapper) via pip
-        working-directory: ${{ github.workspace }}
         run: |
           source venv/bin/activate
           pip install .
 
       - name: Run Python unit tests
-        working-directory: ${{ github.workspace }}
         run: |
           source venv/bin/activate
           pytest -q