masahi commented on issue #12524:
URL: https://github.com/apache/tvm/issues/12524#issuecomment-1221975095

   This is an example of "minimal script":
   
   ```
   import torch
   import tvm
   from tvm import relay
   from tvm.contrib.download import download_testdata
   from tvm.contrib import graph_executor
   
   import numpy as np
   
   
   DEVICE='cpu'
   model=torch.load("model.pt", map_location=torch.device('cpu'))
   data=torch.load("data2.pt", map_location=torch.device('cpu'))
   
   pt_inp = torch.unsqueeze(data[0][0], 0)
   
   with torch.no_grad():
       pt_out = model(pt_inp).numpy()
   
   input_name = "input0"
   target = tvm.target.Target("llvm", host="llvm")
   dev = tvm.cpu(0)
   scripted_model = torch.jit.trace(model, pt_inp).eval()
   input_data = pt_inp.numpy()
   shape_list = [(input_name, input_data.shape)]
   mod, params = relay.frontend.from_pytorch(scripted_model, shape_list)
   
   # print(mod)
   
   with tvm.transform.PassContext(opt_level=3):
       lib = relay.build(mod, target=target, params=params)
   
   m = graph_executor.GraphModule(lib["default"](dev))
   m.set_input(input_name, tvm.nd.array(pt_inp.numpy()))
   m.run()
   output = torch.tensor(m.get_output(0).asnumpy())
   
   tvm_out = m.get_output(0).asnumpy()
   
   # print(np.max(np.abs(tvm_out - pt_out)), np.mean(np.abs(tvm_out - pt_out)))
   print(pt_out)
   ```
   
   Running this script, I see PT output like 
   ```
   [[-4.39299689e+36  3.77933626e+35 -4.14227049e+36 -4.03090327e+36
     -4.95762177e+36 -1.81598428e+36 -1.35176413e+36  1.13814440e+36
     -4.90326143e+35  1.11240001e+36 -3.27343576e+36 -4.31897940e+36
     -3.87017024e+36 -1.74157477e+36  5.59471333e+35 -2.40675192e+36
     -1.40862270e+36 -4.29128504e+36  4.14507723e+35 -5.33183350e+36
     -5.69302083e+35 -4.26776790e+36  2.10849216e+35 -3.88321310e+36
     -9.52957448e+35  9.93559742e+35  4.13343307e+35 -2.29166969e+36
     -1.85837942e+36 -1.26610193e+36 -2.77660958e+35 -8.23837505e+36
      1.42649498e+36 -1.72732131e+36 -4.55971259e+36 -4.42550959e+36
     -3.68109445e+36 -4.73053168e+36 -1.91429644e+36  4.43432768e+36
     -6.18386068e+35 -3.07289027e+36 -3.72914158e+36 -9.81286935e+36
     -1.02773259e+36  1.03946589e+36 -2.20454802e+36 -2.38695376e+36
   ```
   
   Is this expected?


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