Tesla K80 显卡参数

CUDA Driver Version / Runtime Version 8.0 / 7.5
CUDA Capability Major/Minor version number: 3.7
Total amount of global memory: 11440 MBytes (11995578368 bytes)
(13) Multiprocessors, (192) CUDA Cores/MP: 2496 CUDA Cores
GPU Max Clock rate: 824 MHz (0.82 GHz)
Memory Clock rate: 2505 Mhz
Memory Bus Width: 384-bit
L2 Cache Size: 1572864 bytes
Maximum Texture Dimension Size (x,y,z) 1D=(65536), 2D=(65536, 65536), 3D=(4096, 4096, 4096)
Maximum Layered 1D Texture Size, (num) layers 1D=(16384), 2048 layers
Maximum Layered 2D Texture Size, (num) layers 2D=(16384, 16384), 2048 layers
Total amount of constant memory: 65536 bytes
Total amount of shared memory per block: 49152 bytes
Total number of registers available per block: 65536
Warp size: 32
Maximum number of threads per multiprocessor: 2048
Maximum number of threads per block: 1024
Max dimension size of a thread block (x,y,z): (1024, 1024, 64)
Max dimension size of a grid size (x,y,z): (2147483647, 65535, 65535)
Maximum memory pitch: 2147483647 bytes
Texture alignment: 512 bytes
Concurrent copy and kernel execution: Yes with 2 copy engine(s)
Run time limit on kernels: No
Integrated GPU sharing Host Memory: No
Support host page-locked memory mapping: Yes
Alignment requirement for Surfaces: Yes
Device has ECC support: Enabled
Device supports Unified Addressing (UVA): Yes
Device PCI Domain ID / Bus ID / location ID: 0 / 11 / 0
Compute Mode:
整理：

Maximum number of threads per multiprocessor: 2048
Maximum number of threads per block: 1024
registers available per block: 65536个 = 32bits * 65536 = 256kb
(If) registers available per thread: 64 = 64*32bits = 0.25kb=256B
shared memory per block : (32bit * 12288)=48kb
13 SM, 192 SP/per SM: 共2496 SPs
number of SP per SM: 192
number of block per SM: （2048【1】/1024【2】）=2[min]
number of SP per block: （192/2）=96
number of cycles per block: （1024[thread/block]/32【warp】）=16????
warp size : 32
number of warp per block: (2048/2[block]/32/16[cycles?])=2
number of thread per warp: 32 = warp size

参考：https://blog.csdn.net/dfdfdsfdfdfdf/article/details/76170399