where is the shared memory?(a SDK Example)

hi everybody

Conrrently, I am running the examples in SDK in CUDA2.0+Visual Studio 2005 using 8800GT.
In matrixMulti, the ptxas info in output is “Used 14 registers, 2084+1060 bytes smem, 4 bytes cmem[1]”. 2084 is clear. however, I dont know what’s the “1060” meaning?

In CUDA_Occupancy_calculator, I entered 2084 in row “Shared Memory Per Block” in the orange table, and the value of Shared Memory in the below yellow table named “Allocation Per Thread Block” is 2560. Where is the difference"2560-2084" being used?

I am completely confused.

Thanks in advance