选择汇编阶段的备选办法(-ptx和-cubin)与用于控制哪些装置的备选办法(-code)相混合,因此,您应重新审议这些文件。
NVCC是NVIDIA编纂者司机。 <代码>-ptx和-cubin>的备选办法用于选择汇编的具体阶段,否则,任何具体阶段的备选办法都不会试图从投入中产生可执行的效果。 大多数人使用<条码>-c选择,使Nvcc产生一份标书,然后由缺省平台链接器、<条码>-ptx和<条码>-cubin的选项链接起来,只有在您使用动因软件时,才会真正有用。 关于中间阶段的更多信息,检查了在安装CUDA工具包时安装的Nvcc手册。
- The output from
-ptx is a plain-text PTX file. PTX is an intermediate assembly language for NVIDIA GPUs which has not yet been fully optimised and will later be assembled to the device-specific code (different devices have different register counts for example, hence fully optimising PTX would be wrong).
- The output from
-cubin is a fat binary which may contain one or more device-specific binary images as well as (optionally) PTX.
The -code argument you refer to has a different purpose entirely. I d encourage you to check out the nvcc documentation which contains several examples, in general I would advise using the -gencode option instead since it allows more control and allows you to target multiple devices in one binary. As a quick example:
-gencode arch=compute_xx,code= compute_xx,sm_yy,sm_zz causes nvcc to target all devices with compute capability xx (that s the arch= bit) and to embed PTX (code=compute_xx) as well as device specific binaries for sm_yy and sm_zz into the final fat binary.
