Package: openblas Version: 0.2.6-2 Severity: wishlist openblas runs some memory address range benchmarking when it starts up to determine the fastest address range. This is not very useful for regular non-NUMA machines and increases startup time of applications quite significantly.
Please disable this warmup for the package so it can be used as a general blas library replacement for all libraries. NUMA clusters most likely build openblas themselves anyway. It can be disabled by uncommenting NO_WARMUP in Makefile.rule As example the import time of python numpy doubles when using openblas: without openblas (atlas blas provider): time python -c "import numpy" 0.8s with warmup enabled openblas time python -c "import numpy" 0.18s with warmup disabled openblas time python -c "import numpy" 0.1s -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
