nsight-compute-cli exposes the following metrics regarding instruction mix “smsp__inst_executed_pipe_XX” where XX are:
Question : I am wondering what each of these pipeline unit abbreviations means.
I figured “alu” means arithmetic & logic unit for integer and logic operations? “fma” is fused multiply add for floating point operations? However, I ran a tiny kernel that is supposed to only involve integer/logic and memory operations (I double checked the ptx and confirmed this). However, the instruction count for fma is non-zero for such a kernel.
And for the other pipelines I simply can’t guess what they are.
Any explanation is greatly appreciated. Thanks in advance!