Maximum blocks per grid:CUDA

Question

What is the maximum number of blocks in a grid that can created per kernel launch? I am slightly confused here since

Now the compute capability table here says that ther

Answer 1

i think it is 65535 per grid..

Answer 2

65535 per dimension of the grid. On compute 1.x cards, 1D and 2D grids are supported. On compute 2.x cards, 3D grids are also supported, so 65535, 65535 x 65535, and 65535 x 65535 x 65535 are the limits for Fermi (compute 2.x) cards.