os.environ["OPENBLAS_NUM_THREADS"] = "1"
时间: 2023-10-28 15:06:26 浏览: 44
This line of code sets the environment variable OPENBLAS_NUM_THREADS to the value of 1.
OPENBLAS_NUM_THREADS is a variable used by the OpenBLAS library, which is an open-source implementation of the Basic Linear Algebra Subprograms (BLAS) and the Linear Algebra Package (LAPACK) libraries. These libraries provide optimized routines for performing common linear algebra operations, such as matrix multiplication and matrix inversion.
Setting OPENBLAS_NUM_THREADS to 1 specifies that the library should use only one thread for parallel execution. This can be useful in situations where the overhead of thread creation and synchronization outweighs the benefits of parallel execution, or when running on a system with limited resources.