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Posted to discuss-archive@tvm.apache.org by Haoyang Ma via Apache TVM Discuss <no...@discuss.tvm.ai> on 2022/02/21 04:05:47 UTC
[Apache TVM Discuss] [Questions] Crash when opt_level = 0
Hi all, I met a segmentation fault after running the following script:
```
import tvm
from tvm import relay
var_0 = relay.var("var_0", shape=(), dtype="float64")
var_1 = relay.var("var_1", shape=(), dtype="float64")
var_2 = relay.add(var_0, var_1)
tuple = relay.Tuple([var_2])
func = relay.Function([var_0, var_1], tuple)
mod = tvm.IRModule.from_expr(func)
with tvm.transform.PassContext(opt_level=0):
exe = relay.backend.vm.compile(mod, "llvm")
```
The crash still exists after changing target from llvm to cuda. And I have run it on macOS M1 and centos with x86 architecture and rtx 3090
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[Apache TVM Discuss] [Questions] Crash when opt_level = 0
Posted by leeexyz via Apache TVM Discuss <no...@discuss.tvm.ai>.
Not yet, it is not appropriate to modify the pass level cause it may impact other cases. I reported a bug and am still waiting for suggestions from the community.
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[Apache TVM Discuss] [Questions] Crash when opt_level = 0
Posted by Haoyang Ma via Apache TVM Discuss <no...@discuss.tvm.ai>.
Wow, thanks. I'm not sure assigning opt_level to 0 is legal or not. BTW, has this problem been solved?
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[Apache TVM Discuss] [Questions] Crash when opt_level = 0
Posted by leeexyz via Apache TVM Discuss <no...@discuss.tvm.ai>.
Hi @Haoyang I think it is as same as [[Bug][VM] Segmentation fault triggered if opt level set to 0 · Issue #10324 · apache/tvm (github.com)](https://github.com/apache/tvm/issues/10324)
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