Ok so I commented out the `tune_graph()` call and use `sch_log` which is the
schedule from `tune_kernels()`
```
with autotvm.apply_graph_best(sch_log):
logging.info("Compiling the schedule")
with relay.build_config(opt_level=3):
graph, lib, params = relay.build_module.build(
mod, target=target, params=params)
```
However, now I get some interesting errors:
```
%268 = layout_transform(%267, src_layout="NCHW77c", dst_layout="NCHW11c");
%269 = add(%259, %268) Incompatible broadcast type TensorType([1, 2,
(int64)28, (int64)28, 11], int32) and TensorType([1, 0, (int64)28, (int64)28,
11], int32); ;
%270 = subtract(%269, 130);
%271 = clip(%270, a_min=0f, a_max=255f);
%272 = cast(%271, dtype="uint8");
%273 = cast(%272, dtype="int16");
%274 = subtract(%273, meta[relay.Constant][36]);
%275 = layout_transform(%274, src_layout="NCHW11c", dst_layout="NCHW40c") an
internal invariant was violated while typechecking your program [17:15:34]
/Users/alopez/Documents/Code/tvm/src/relay/op/tensor/transform.cc:2328: Check
failed: data != nullptr:
...
%289 = subtract(%288, meta[relay.Constant][3]);
%290 = layout_transform(%289, src_layout="NCHW11c", dst_layout="NCHW8c") an
internal invariant was violated while typechecking your program [17:15:34]
/Users/alopez/Documents/Code/tvm/src/relay/op/tensor/transform.cc:2328: Check
failed: data != nullptr:
```
The internal invariant violation error (`Check failed: data != nullptr:`)
happens a lot, almost on every layout transformation. I recalled reading in the
forums that there was some issue with the optimization level on those
transformations so setting `opt_level=2` finally got the process to work.
So heads up, there is something else going on that may cause problems in the
future. I'll try to debug what is going on, but I'll have to understand the
code base a bit more for me to be effective here.
---
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