def local_bitwidth():
    # Note that according to Python documentation, `platform.architecture()` is
    # not reliable on OS X with universal binaries.
    # Also, sys.maxsize does not exist in Python < 2.6.
    # 'P' denotes a void*, and the size is expressed in bytes.
    return struct.calcsize('P') * 8
Return 32 for 32bit arch, 64 for 64bit arch.
dataset/ETHPy150Open rizar/attention-lvcsr/libs/Theano/theano/configdefaults.py/local_bitwidth