The correct the target for CPU?

below is my cpu info,when i set target = “llvm” and the x86_tune ran well. but when i set the target = “llvm -mcpu=skylake-avx512”, it crashed and many core.* file appeared. So how to choose the right target name ? lscpu

would you provide more information? which line of code core?

“x86_tune” means run AutoTVM on x86 cpu?