Directly import sysconfig + Remove Multidevice "Memory Leak" - #137
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distutils will be deprecated in future Python versions, hence the direct call. Calling cudaFree(0) when CUJITKernel is initiated initializes the primary context on device 0 for any process, leading to extra memory consumption on device 0 when multiple devices are used. CUDA contexts can take 0.4-1 GB, so this is nontrivial overhead that we are eliminating.