cuda shared variable

C++: Using CUDA Shared Variable

To use a CUDA shared variable, follow these steps:

1. Declare the Variable as Shared

2. Use the __shared__ keyword to declare a variable as shared within a CUDA kernel function.

3. Access the Shared Variable

4. Access the shared variable within the CUDA kernel function to perform operations or calculations.

5. Understand Shared Memory

6. Shared variables are stored in the shared memory of a CUDA block, allowing for fast access and sharing of data among threads within the same block.

7. Utilize for Thread Collaboration

8. Shared variables are useful for thread collaboration and communication within a block, enabling threads to work together on a specific task.

Remember to carefully manage access and synchronization of shared variables to avoid race conditions and ensure correct operation within the CUDA kernel.