Hi, I resolved this issue already, but I’m leaving this note for people who may have the same trouble.
After installing the new copy of TVM on my new machine, I had weird segfault on “import TVM”. When looking into details with gdb, it complained corrupted shared library list.
Long story short, I could fix this issue by switching to older version of LLVM (ver 10.0 --> 9.0). I’m not sure about the detailed source of this issue, but for me, this causes the problem. So, if you are having the similar issue, this may worth a shot. Hope this can save your time.
FYI, I also tried different version of xgboost, but it wasn’t the problem. LLVM 10.0 doesn’t work with xgboost v1.1 and xgb v.1.0.2 while LLVM 9.0 works with both versions.