These attributes are supported by the Nvidia PTX back end:
kernel ¶This attribute applies to functions.
It indicates that the corresponding function should be compiled as a kernel function, which can be invoked from the host via the CUDA RT library. By default functions are only callable only from other PTX functions.
Kernel functions must have void return type.
shared ¶This attribute applies to variables.
Use it to place a variable in the .shared memory space.
This memory space is private to each cooperative thread array; only threads
within one thread block refer to the same instance of the variable.
The runtime does not initialize variables in this memory space.