[Bug] Downcast from runtime.String to Array failed

[njuhang]

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Expected behavior

show tuning log and start auto-schedule

Actual behavior

failed with error:
File "e2e_auto_tir.py", line 254, in
main()
File "e2e_auto_tir.py", line 195, in main
db = ms.relax_integration.tune_relax(
File "/home//mlc-relax/relax/python/tvm/meta_schedule/relax_integration.py", line 255, in tune_relax
return tune_tasks(
File "/home//mlc-relax/relax/python/tvm/meta_schedule/tune.py", line 118, in tune_tasks
task_scheduler.tune(
File "/home//mlc-relax/relax/python/tvm/meta_schedule/task_scheduler/task_scheduler.py", line 132, in tune
_ffi_api.TaskSchedulerTune( # type: ignore # pylint: disable=no-member
File "/home//mlc-relax/relax/python/tvm/_ffi/_ctypes/packed_func.py", line 238, in call
raise get_last_ffi_error()
tvm.error.InternalError: Traceback (most recent call last):
[bt] (8) /home//mlc-relax/relax/build/libtvm.so(tvm::meta_schedule::TaskSchedulerNode::Tune(tvm::runtime::Array<tvm::meta_schedule::TuneContext, void>, tvm::runtime::Array<tvm::FloatImm, void>, int, int, int, tvm::meta_schedule::Builder, tvm::meta_schedule::Runner, tvm::runtime::Array<tvm::meta_schedule::MeasureCallback, void>, tvm::runtime::Optionaltvm::meta_schedule::Database, tvm::runtime::Optionaltvm::meta_schedule::CostModel)+0x62b) [0x7ff172abcaab]
[bt] (7) /home//mlc-relax/relax/build/libtvm.so(tvm::meta_schedule::PostOrderApplyNode::GenerateDesignSpace(tvm::IRModule const&)+0xe93) [0x7ff172a98ed3]
[bt] (6) /home//mlc-relax/relax/build/libtvm.so(tvm::meta_schedule::MultiLevelTilingNode::Apply(tvm::tir::Schedule const&, tvm::tir::BlockRV const&)+0x496) [0x7ff172a174a6]
[bt] (5) /home//mlc-relax/relax/build/libtvm.so(tvm::meta_schedule::MultiLevelTilingNode::ApplySubRules(std::vector<tvm::meta_schedule::State, std::allocatortvm::meta_schedule::State >)+0x24a) [0x7ff172a1d9ea]
[bt] (4) /home//mlc-relax/relax/build/libtvm.so(tvm::meta_schedule::MultiLevelTilingNode::AddWriteReuse(tvm::meta_schedule::State) const+0x1c2) [0x7ff172a1c032]
[bt] (3) /home//mlc-relax/relax/build/libtvm.so(tvm::runtime::Optional<tvm::runtime::Array<tvm::Integer, void> > tvm::tir::GetAnn<tvm::runtime::Array<tvm::Integer, void> >(tvm::tir::StmtSRef const&, tvm::runtime::String const&)+0x26c) [0x7ff172a20e7c]
[bt] (2) /home//mlc-relax/relax/build/libtvm.so(tvm::runtime::Array<tvm::Integer, void> tvm::runtime::Downcast<tvm::runtime::Array<tvm::Integer, void>, tvm::runtime::ObjectRef>(tvm::runtime::ObjectRef)+0x165) [0x7ff172a20bd5]
[bt] (1) /home//mlc-relax/relax/build/libtvm.so(tvm::runtime::detail::LogFatal::Entry::Finalize()+0x3d) [0x7ff1725097dd]
[bt] (0) /home//mlc-relax/relax/build/libtvm.so(tvm::runtime::Backtraceabi:cxx11+0x2c) [0x7ff174821ecc]
File "/home//mlc-relax/relax/include/tvm/runtime/object.h", line 920
InternalError: Check failed: (ref->template IsInstance()) is false: Downcast from runtime.String to Array failed.

Environment

Ubuntu20.04, mlc-relax latest.

Steps to reproduce

1.Change "tar" to "ndk" in function tvm.meta_schedule.testing.custom_builder_runner.run_module_via_rpc.
2.use relax_example/e2e_auto_tir.py as:
python3 e2e_auto_tir.py --workload=resnet_18 --target=“opencl -device=mali”
Just for tuning on opencl mobile gpu.

Triage

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• needs-triage