yindo/flash-attention-prebuild-wheels-rocm
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fix: Update build parallel

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This commit is contained in:
Junya Morioka
2025-12-05 00:47:29 +09:00
parent 612ab6d2ca
commit cdfbcd8034
2 changed files with 13 additions and 7 deletions
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.github/workflows/test-self-hosted-linux.yml
+1 -1
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@@ -89,7 +89,7 @@ jobs:
chmod +x build_linux.sh
./build_linux.sh ${{ matrix.flash-attn-version }} ${{ matrix.python-version }} ${{ matrix.torch-version }} ${{ matrix.cuda-version }}
wheel_name=$(basename $(ls flash-attention/dist/*.whl | head -n 1))
echo "wheel_name=$wheel_name" >> $GITHUB_ENV
echo "WHEEL_NAME=$wheel_name" >> $GITHUB_OUTPUT
- name: Install Test
shell: bash
build_linux.sh
+12 -6
View File
@@ -54,15 +54,21 @@ echo " RAM: ${RAM_GB}GB"
# Determine MAX_JOBS and NVCC_THREADS based on system resources
if [[ -z "${MAX_JOBS:-}" && -z "${NVCC_THREADS:-}" ]]; then
# Calculate max product based on following constraints:
# - MAX_JOBS x NVCC_THREADS <= NUM_THREADS
# - 2.5GB x MAX_JOBS x NVCC_THREADS <= RAM_GB
# - MAX_JOBS x NVCC_THREADS(<= 4) <= NUM_THREADS
# - 2.5GB x MAX_JOBS x NVCC_THREADS(<= 4) <= RAM_GB
MAX_PRODUCT_CPU=$NUM_THREADS
MAX_PRODUCT_RAM=$(awk -v ram="$RAM_GB" 'BEGIN {print int(ram / 2.5)}')
MAX_PRODUCT_RAM=$(awk -v ram="$RAM_GB" 'BEGIN {print int(ram / 2.25)}')
MAX_PRODUCT=$((MAX_PRODUCT_CPU < MAX_PRODUCT_RAM ? MAX_PRODUCT_CPU : MAX_PRODUCT_RAM))
# Set MAX_JOBS = NVCC_THREADS = floor(sqrt(MAX_PRODUCT))
MAX_JOBS=$(awk -v max="$MAX_PRODUCT" 'BEGIN {print int(sqrt(max))}')
NVCC_THREADS=$MAX_JOBS
# Set MAX_JOBS and NVCC_THREADS so that MAX_JOBS x NVCC_THREADS ≈ MAX_PRODUCT with NVCC_THREADS <= 4
BASE_THREADS=$(awk -v max="$MAX_PRODUCT" 'BEGIN {print int(sqrt(max))}')
if (( BASE_THREADS <= 4 )); then
MAX_JOBS=$BASE_THREADS
NVCC_THREADS=$BASE_THREADS
else
NVCC_THREADS=4
MAX_JOBS=$((MAX_PRODUCT / NVCC_THREADS))
fi
# Ensure minimum values of 1
MAX_JOBS=$((MAX_JOBS < 1 ? 1 : MAX_JOBS))