CUDA：从二进制文件中获取所需的计算能力

Question

有没有办法从使用 CUDA 的二进制文件中获取所需的计算能力？我知道该应用程序适用于特定的图形卡（具有计算能力 2.1）。

Answer 1

运行 cuobjdump 应该能帮到你。它会告诉你什么ptx（运行时jit编译的代码）在编译文件中可用，什么sass（真正的代码在特定设备上执行）也已预编译。下面是使用 -arch=sm_20:

编译的设备代码的示例输出

$ cuobjdump quick

Fatbin elf code:
================
arch = sm_20
code version = [1,7]
producer = <unknown>
host = linux
compile_size = 64bit
identifier = quick.cu

Fatbin elf code:
================
arch = sm_20
code version = [1,7]
producer = cuda
host = linux
compile_size = 64bit
identifier = quick.cu

Fatbin ptx code:
================
arch = sm_20
code version = [4,1]
producer = cuda
host = linux
compile_size = 64bit
compressed
identifier = quick.cu
ptxasOptions =  --generate-line-info

CUDA：从二进制文件中获取所需的计算能力

CUDA: get required compute capabilities from binary

cuda